So, you’re thinking about a trip to London, Ontario! Great choice. Known as the Forest City, London has leafy parks, riverside trails, festivals, museums, theatre, and plenty of family-friendly activities. But when should you go? The answer depends on whether you’re looking for warm weather, colorful autumn scenery, outdoor adventures, or a quieter getaway. Here’s how to choose the right time for your London adventure.
Quick Answer
The best time to visit London, Ontario, is generally June through September for comfortable sightseeing and outdoor activities. July and August offer the warmest weather and summer festivals, while May and September provide a pleasant balance of temperatures and outdoor opportunities. Visit in October for autumn colors or January and February for winter activities and potentially quieter travel dates.
Key Takeaways
- Best for warm weather: June through August, with July typically the warmest month.
- Best for comfortable outdoor exploration: May, June, and September.
- Best for festivals: Summer, with additional major events in September.
- Best for fall colors: Late September through October, depending on the weather.
- Best for winter activities: December through February, depending on snow and ice conditions.
- Best for budget flexibility: Compare winter and shoulder-season dates, but check local events before assuming prices will be lower.
London, Ontario Weather and Travel Conditions by Month
London experiences four distinct seasons. Summer is warm and can be humid, while winter brings freezing temperatures, snow, and occasional icy conditions. Spring and autumn offer changing temperatures, so packing layers is especially helpful.
The following monthly temperature figures come from Environment and Climate Change Canada’s 1991–2020 climate normals for London. These are average daily maximum temperatures, not forecasts or the warmest temperatures possible.
At a Glance: Month-by-Month Travel Guide
| Month | Average High and Travel Conditions |
|---|---|
| January | -1.6°C (29°F). Cold and often snowy. Suitable for indoor attractions and weather-dependent winter activities. |
| February | -0.6°C (31°F). Winter conditions continue. Bring warm layers and allow flexibility for travel disruptions. |
| March | 4.6°C (40°F). Transitional weather with possible snow, rain, and chilly evenings. |
| April | 12.2°C (54°F). Milder days arrive, although rain and occasional late-season cold spells remain possible. |
| May | 19.3°C (67°F). Comfortable for parks, walking, and spring scenery. Seasonal attractions may begin opening. |
| June | 24.4°C (76°F). Warm conditions, longer daylight hours, and growing outdoor activity. |
| July | 26.6°C (80°F). Typically the warmest month, with festivals, humidity, and possible thunderstorms. |
| August | 25.7°C (78°F). Warm summer weather continues, making outdoor activities and family outings appealing. |
| September | 22.1°C (72°F). Often comfortable for sightseeing, walking, and fall events. Major event dates can be busy. |
| October | 14.7°C (58°F). Cooler weather and colorful trees make this an attractive month for autumn walks. |
| November | 7.5°C (46°F). Chilly days, shorter daylight hours, and increasing demand for indoor activities. |
| December | 1.4°C (35°F). Winter weather, holiday events, and potentially snowy or icy travel conditions. |
Temperature source: Environment and Climate Change Canada, 1991–2020 London climate normals. Individual days can be substantially warmer or colder.
1. Summer: June to August
Summer in London, Ontario, generally runs from June through August. This is the season to choose if you want warm weather, outdoor festivals, green parks, and long days for sightseeing.
Weather: Sunshine and Warmth
- Temperatures: Average daytime highs rise from 24.4°C in June to 26.6°C in July, then ease slightly to 25.7°C in August. Hotter days above 30°C are possible.
- Sunshine: Long daylight hours give you more flexibility for parks, patios, and outdoor sightseeing.
- Humidity: July and August can feel humid. Lightweight, breathable clothing is a smart choice.
- Rainfall: Showers and thunderstorms can occur throughout summer. Keep an umbrella or light waterproof jacket available and check the forecast before outdoor activities.
Crowds: A Lively Festival Season
Summer brings an active event calendar, school holidays, and plenty of opportunities to explore the city outdoors. However, crowd levels depend on the specific attraction, weekend, and event.
- Accommodation: Popular event weekends may have fewer available hotel rooms. Reserve early when your dates overlap with a major festival.
- Family attractions: Storybook Gardens and other seasonal attractions can be particularly appealing during school holidays.
- Events: Sunfest, Ribfest when scheduled, and community celebrations give summer its lively atmosphere.
- Restaurants: Consider reservations for popular restaurants when visiting during a major event.
For a verified example, Sunfest took place July 9–12, 2026, at Victoria Park. The festival featured international music, food, and artisan vendors. Check the organizer’s website for future festival dates.
Costs: Plan Around Events
Summer travel can be more expensive on popular dates, but there is no single price pattern that applies to every London hotel or flight.
- Accommodation: Compare weekday and weekend prices. Major events can affect room availability and rates.
- Transportation: If you’re flying, compare the full trip cost, including ground transportation, rather than focusing only on the airfare.
- Activities: Check official attraction websites for admission prices, packages, and special-event tickets.
- Dining: Set aside extra time for meals on busy festival days and make reservations when needed.
Pros of Summer
- Warm weather: Excellent for exploring parks, patios, and outdoor events.
- Lively atmosphere: Festivals and community activities give you plenty of choices.
- Long daylight hours: More flexibility for sightseeing and evening walks.
- Family activities: Seasonal play areas and summer programming are attractive for visitors with children.
Cons of Summer
- Potentially higher costs: Accommodation rates may rise around major events.
- Busier attractions: Popular activities can require advance booking.
- Heat and humidity: Some afternoons can feel uncomfortable, especially during hot spells.
- Thunderstorms: Outdoor plans may occasionally need to change.
Pro Tip: If you want warm weather without making every day a festival day, consider June or late August. Check the local event calendar before booking because individual weekends can still be busy.
If you’re comparing travel products before your trip, the site’s how we review products page explains its product-review approach. Use it to understand how recommendations are evaluated rather than as a guide to local attractions.
2. Spring: March to May
Spring in London is a gradual transition from winter to warmer weather. It’s a lovely time to visit if you enjoy emerging greenery, flowering trees, and more comfortable walking conditions as the season progresses.
Weather: Unpredictable but Promising
- Temperatures: March has an average daytime high of 4.6°C, so it can still feel wintry. By May, the average high reaches 19.3°C.
- Sunshine: Daylight increases as spring progresses, giving you more time for outdoor activities.
- Rainfall: Expect changeable conditions, including rain and occasional late-season snow.
- Blossoms: Flowering trees and other spring plants bring color to parks and residential streets. The exact timing varies from year to year.
Crowds: More Flexibility Between Events
Spring can offer a more relaxed travel experience than major summer festival weekends, although school holidays, university events, and local celebrations can still increase demand.
- Shoulder-season benefits: Some dates may offer better accommodation availability.
- Local events: University activities, community markets, and seasonal programming can provide interesting experiences.
- Outdoor attractions: Opening dates vary. Some activities do not begin until late spring or early summer.
Costs: Compare Early and Late Spring
- Accommodation: Compare several dates rather than assuming all spring nights are less expensive.
- Transportation: Easter and other holiday periods may affect fares and availability.
- Attraction tickets: Standard admission may remain consistent, but operating schedules and special programs can change.
Pros of Spring
- Comfortable late-spring weather: May is attractive for sightseeing and outdoor walks.
- Beautiful blooms: Parks and gardens become greener as temperatures rise.
- Flexible travel dates: Some periods may be less affected by major summer events.
- Outdoor exploration: Longer days make park visits and riverside walks more enjoyable.
Cons of Spring
- Unpredictable weather: Rain, sunshine, wind, and lingering cold can occur within a short period.
- Seasonal closures: Some outdoor attractions may not yet be operating.
- Wet trails: Snowmelt and rainfall can leave natural paths muddy.
Note: May is generally a better choice than March if your main goal is comfortable outdoor sightseeing. March can still bring winter-like conditions even when the calendar says spring.
3. Autumn: September to November
Autumn in London, Ontario, runs from September through November. It brings cooler temperatures, changing leaves, and opportunities to enjoy the city’s parks without the strongest summer heat.
Weather: Cool and Invigorating
- Temperatures: September remains relatively warm, with an average high of 22.1°C. October averages 14.7°C, while November cools to approximately 7.5°C.
- Sunshine: Early autumn can offer comfortable sunny days. Daylight decreases noticeably as the season progresses.
- Fall foliage: Victoria Park, Springbank Park, and other green spaces provide opportunities to enjoy changing leaves.
- Rainfall: Rain and breezy weather are possible, so a waterproof outer layer is useful.
When Are Fall Colors at Their Best?
Late September through October is the general window to consider for autumn scenery. However, color development and peak timing depend on temperature, rainfall, and other seasonal conditions.
Early to mid-October is a reasonable period to consider when planning a foliage-focused trip, but it is not a guaranteed peak window every year.
For a comfortable fall walk, explore Victoria Park or the Thames Valley Parkway. The paved pathway network is particularly useful if you prefer walking or cycling rather than hiking on natural trails.
Crowds: A Different Kind of Activity
- After summer: Some attractions may feel quieter once school holidays end.
- Harvest festivals and events: September brings major local activities that can create busy weekends.
- University activity: The return of students contributes to a lively local atmosphere.
- Fall scenery: Popular parks can attract walkers and photographers during colorful weekends.
One important event is the Western Fair. In 2026, the fair ran from September 11–20, with rides, food, music, and agricultural programming. Check the official Western Fair information for future schedules.
Costs: Look Beyond Summer Prices
- Accommodation: Some fall dates may offer better value than major summer event weekends.
- Flight prices: Compare actual fares and connections rather than relying on seasonal assumptions.
- Event weekends: Large local events can affect room availability and transportation demand.
- Booking flexibility: If your dates are flexible, compare nearby weekdays with weekends.
Pros of Autumn
- Beautiful fall colors: Trees create attractive scenery throughout the city’s green spaces.
- Comfortable early-season weather: September is excellent for walking and sightseeing.
- Varied activities: Outdoor recreation, cultural events, and harvest celebrations provide options.
- Potentially good value: Some dates may offer more favorable accommodation rates.
Cons of Autumn
- Shorter daylight hours: Outdoor sightseeing time decreases as winter approaches.
- Cooler evenings: You’ll need layers, especially in October and November.
- Changing attraction schedules: Some seasonal outdoor activities begin winding down.
- Variable foliage timing: A planned October visit does not guarantee peak leaf color.
4. Winter: December to February
Winter is the coldest season in London, Ontario. Snow-covered parks, holiday activities, indoor attractions, and winter recreation can make it rewarding for travelers who don’t mind bundling up.
Weather: Cold and Potentially Snowy
- Temperatures: Average daytime highs are 1.4°C in December, -1.6°C in January, and -0.6°C in February. Overnight temperatures are often well below freezing.
- Snowfall: Snow is common, although the timing and amount vary from year to year.
- Wind chill: Wind can make exposed skin feel much colder than the air temperature suggests.
- Ice: Freezing rain and icy surfaces are possible. Use caution when walking or driving.
Warning: Winter storms, freezing rain, and poor visibility can disrupt travel. Check the weather forecast and Ontario 511 road conditions before driving. If conditions are unsafe, delay your trip when possible.
Crowds: A Quieter Travel Experience Between Holidays
Winter can offer quieter sightseeing periods, but holiday activities, school breaks, and special events may still attract visitors.
- Off-season periods: Some attractions and accommodations may have greater availability.
- Holiday exceptions: Christmas, New Year’s, and school holidays can affect demand.
- Winter activities: Skating and seasonal events create opportunities to enjoy the city outdoors.
Winter Activities in London
Storybook Gardens is not exclusively a summer attraction. Its seasonal programming includes winter skating when conditions allow.
As of September 24, 2026, the City of London has announced that the 2026 summer operating season has ended and that winter skating is scheduled to begin November 28, weather permitting. Check the official Storybook Gardens operating hours before planning a visit.
Other winter options include museums, art galleries, theatre performances, restaurants, and indoor family activities.
Costs: Look for Date-Specific Deals
- Accommodation: January and February may offer attractive rates on some dates, particularly outside major events.
- Flights: Compare the total cost of different travel dates, including baggage and transportation.
- Activities: Look for official attraction packages and indoor activities that fit your budget.
- Transportation: Allow room in your budget for weather-related changes if you’re traveling during winter storms.
Pros of Winter
- Potentially quieter sightseeing: Some attractions may be less busy between major events.
- Possible accommodation savings: Certain dates can offer good value.
- Winter scenery: Snow can transform parks and walking areas.
- Indoor attractions: Museums, galleries, theatre, and local restaurants provide alternatives to outdoor sightseeing.
- Seasonal recreation: Skating and winter activities can be enjoyable when conditions cooperate.
Cons of Winter
- Cold temperatures: Warm clothing and insulated footwear are essential.
- Short daylight hours: Outdoor sightseeing requires more careful scheduling.
- Potential travel disruptions: Snow, freezing rain, and poor visibility may affect roads and transportation.
- Seasonal closures: Many summer-specific attractions and activities are unavailable.
For information about how this website prepares and reviews travel-related content, see the Lele Tours editorial policy. This page explains editorial standards rather than providing a local attraction or event schedule.
5. Choosing the Best Time for Your Travel Interests
Weather is important, but the experiences you want may matter even more. London offers different opportunities depending on the season.
For the Festival Lover
- Summer: Choose June through August for outdoor festivals and community celebrations. Sunfest and Ribfest are examples of events to look for when their schedules are announced.
- Early fall: September brings events such as the Western Fair, along with cultural and university-related activities.
- Other seasons: Concerts, theatre, markets, and community events take place at different times throughout the year.
Use the official Tourism London events calendar to check confirmed dates, locations, and event details before booking.
For the Outdoorsy Adventurer
Late spring and early summer, particularly May and June: Temperatures become more comfortable, greenery returns, and parks are appealing for walking and cycling.
Consider Fanshawe Conservation Area, Meadowlily Woods, Springbank Park, and the Thames Valley Parkway. Check individual trail and facility information before visiting.
Early autumn, particularly September and October: Cooler conditions can make longer walks more comfortable. Fall colors add to the scenery.
The Thames Valley Parkway is especially useful for visitors who enjoy paved recreational paths, while natural areas offer a different experience.
For the Culture Lover
- Year-round: London offers museums, galleries, concerts, and other cultural activities.
- Fall and winter: Indoor attractions are particularly useful when outdoor conditions become less comfortable.
- Spring: Combine indoor cultural activities with park visits as temperatures improve.
- Summer: Outdoor festivals and community performances provide additional choices.
Consider Museum London, the Museum of Ontario Archaeology, McIntosh Gallery, and London Music Hall. Check individual operating hours and current exhibitions.
The Grand Theatre is another important cultural destination. Its main theatrical season generally runs from September through May, although individual events and programming can vary.
For the Budget Traveler
Rather than choosing a season based only on general price assumptions, compare actual travel dates.
- January and February: Worth checking for accommodation offers outside major event periods.
- November: Some dates may provide good value before the main holiday period.
- March and April: Compare weekday rates and avoid assuming school holidays will be inexpensive.
- September and October: Consider non-event weekdays if you want comfortable sightseeing weather with more booking flexibility.
Pro Tip: Compare at least two sets of travel dates. Include accommodation, transportation, parking, attraction tickets, and any cancellation fees when deciding which trip offers better value.
For Families with Children
- Summer: Warm weather and school holidays make outdoor attractions appealing. Storybook Gardens and East Park are examples of family destinations to investigate.
- Late spring: May and June provide increasingly comfortable conditions for playgrounds, parks, and family outings.
- Autumn: September and October offer pleasant walking weather and seasonal activities.
- Winter: The London Children’s Museum, indoor play spaces, and weather-dependent skating provide alternatives to summer attractions.
If you’re considering Canada’s Wonderland, remember that it is located in Vaughan rather than London. Treat it as a separate excursion instead of including it among attractions within the city.
Check operating dates, age and height restrictions, accessibility details, and ticket availability before visiting any family attraction.
6. What to Pack for Each Season
London’s changing weather makes packing the right clothing important, especially if your trip involves outdoor activities.
Spring Packing Essentials
- Comfortable walking shoes.
- A waterproof jacket or compact umbrella.
- Light and medium-weight layers.
- Warmer clothing for early spring evenings.
Summer Packing Essentials
- Lightweight, breathable clothing.
- Comfortable walking shoes.
- A hat, sunglasses, and sunscreen.
- A reusable water bottle.
- A light rain jacket for showers and thunderstorms.
Autumn Packing Essentials
- Layers that can be added or removed throughout the day.
- A light jacket for September and warmer outerwear for later autumn.
- Comfortable footwear suitable for damp paths.
- A rain jacket or umbrella.
Winter Packing Essentials
- An insulated winter coat.
- Warm gloves, a hat, and a scarf.
- Insulated footwear with good traction.
- Thermal layers for extended outdoor activities.
- Extra socks and a change of clothing when needed.
7. Practical Tips for Planning Your London Visit
A little preparation can make your visit more comfortable, no matter which season you choose.
Check Events Before Booking Accommodation
A major festival, fair, concert, or university event can affect hotel availability and the number of visitors in certain areas.
Check confirmed event dates before choosing your accommodation. If you’re attending a specific festival, consider staying somewhere with convenient transportation to the venue.
Confirm Seasonal Attraction Hours
Do not assume an attraction has the same operating schedule throughout the year.
Storybook Gardens is a good example: summer activities and winter skating have different schedules, and weather can affect operations.
The same principle applies to amusement activities, splash pads, conservation-area facilities, and outdoor recreation programs.
Plan for Changing Weather
Check a reliable local forecast shortly before departure and again before major outdoor activities.
Summer thunderstorms, spring rain, autumn cold spells, and winter storms can all affect your plans.
Keep at least one indoor alternative available, especially if you’re traveling with children.
Think About Transportation
Consider how you’ll travel between your accommodation and the attractions you want to visit.
Downtown attractions may be convenient to combine on foot, while some parks and family destinations require additional transportation.
If you’re driving during winter, allow extra time and check road conditions before leaving.
Leave Room for Spontaneous Exploration
London has parks, neighborhoods, galleries, cafes, and local businesses that can be enjoyable without a tightly packed itinerary.
Use the weather and your energy level to decide how much outdoor sightseeing to include each day.
Frequently Asked Questions
1. What is the best time to visit London, Ontario, for favorable weather?
June through August generally offers the warmest weather. July has an average daytime high of 26.6°C, while June and August are slightly cooler on average. May and September are also attractive if you prefer milder temperatures for walking and sightseeing.
2. When is the peak tourist season in London, Ontario?
Summer is a popular period for outdoor activities, school-holiday travel, and festivals. July and August are particularly appealing for warm-weather activities. However, September events and major concerts can also create busy travel dates.
3. What is the off-peak season in London, Ontario?
Winter, particularly January and February outside major events, can offer quieter travel opportunities. However, holiday activities and local events may still affect visitor numbers and accommodation availability.
4. When should I visit London, Ontario, to avoid crowds?
Consider May, September, or October, particularly on weekdays outside major events. These months can provide comfortable sightseeing conditions without requiring you to travel during the warmest part of summer. Check the event calendar before booking.
5. How much does it cost to visit London during peak season?
There is no fixed peak-season trip cost. Accommodation, transportation, dining, and attraction expenses depend on your dates and preferences. Major event weekends may affect hotel rates and availability. Compare actual prices before booking and include transportation and attraction tickets in your budget.
6. When can I see fall colors in London, Ontario?
Late September through October is the general fall-color season. Early to mid-October can be a useful period to consider, but the timing and intensity of the colors vary with weather conditions. Victoria Park, Springbank Park, and other green spaces are good places to explore.
7. Is London, Ontario, worth visiting in winter?
Yes, especially if you enjoy museums, theatre, winter scenery, and seasonal recreation. Storybook Gardens offers winter skating when conditions permit. Dress for freezing temperatures, confirm operating schedules, and check the forecast before traveling.
8. Which month is best for festivals in London, Ontario?
July is attractive for summer festivals such as Sunfest, while September brings events such as the Western Fair. Festival schedules can change from year to year, so confirm the dates with the organizer before making travel arrangements.
Sources
- Environment and Climate Change Canada — London Climate Normals, 1991–2020. Official monthly temperature averages and historical climate information.
- City of London — Storybook Gardens Hours of Operation. Seasonal attraction availability and winter skating information.
- Sunfest — Official Festival Website. Festival dates, programming, and event information.
- Western Fair — Official Visitor Information. Fair dates, location, and visitor planning information.
- Tourism London — Events Calendar. Local festivals, concerts, cultural events, and seasonal activities.
- Ontario 511 — Official Road Conditions. Highway conditions and winter travel information.
