
Ottawa, Canada’s capital, is known for its stunning beauty, rich history, and… unpredictable weather! From scorching summer days to frigid winter nights, understanding the Ottawa weather is crucial for residents and visitors alike. This guide provides you with everything you need to stay informed and prepared, no matter the season.
Understanding Ottawa’s Climate
Ottawa experiences four distinct seasons. Summers (June-August) are warm and humid, with average temperatures around 20-25°C (68-77°F). Spring (March-May) and Fall (September-November) are transitional periods, often with pleasant temperatures but also unpredictable showers. Winters (December-February) are long, cold, and snowy, with average temperatures below freezing. The city is located in the Ottawa Valley, which influences its microclimate and can lead to localized weather variations.
Current Ottawa Weather Conditions
For the most up-to-date Ottawa weather information, we recommend checking these reliable sources:
- The Weather Network: Provides detailed forecasts, radar maps, and weather alerts.
- Environment Canada: Official government source for weather information in Canada.
- AccuWeather: Offers minute-by-minute forecasts and severe weather warnings.
Seasonal Weather Breakdown
Spring (March – May)
Spring in Ottawa is a time of renewal, but also fluctuating temperatures. Expect a mix of sunshine, rain, and occasional snow. Temperatures gradually rise from below freezing to around 15°C (59°F). It’s a good idea to keep a light jacket and umbrella handy.
Summer (June – August)
Summers are warm and humid, perfect for enjoying Ottawa’s outdoor attractions. Heatwaves are possible, with temperatures occasionally exceeding 30°C (86°F). Be sure to stay hydrated and protect yourself from the sun.
Fall (September – November)
Fall brings stunning foliage and crisp air. Temperatures gradually cool down, ranging from 10-20°C (50-68°F). Rainfall increases, and the first snowfall is usually in November.
Winter (December – February)
Winters are long and cold, with average temperatures around -10°C (14°F). Snowfall is abundant, making Ottawa a winter wonderland. Be prepared for icy conditions and dress warmly in layers. Ottawa Tourism offers a great guide to winter activities.
Tips for Staying Prepared
- Check the forecast regularly: Stay informed about upcoming weather changes.
- Dress in layers: This allows you to adjust to changing temperatures.
- Wear appropriate footwear: Especially during winter, ensure your shoes have good traction.
- Be aware of winter driving conditions: Snow and ice can make roads hazardous.
- Have an emergency kit: Include items like a flashlight, first-aid kit, and warm blankets.
Staying informed about the Ottawa weather is the best way to enjoy all that this beautiful city has to offer, year-round.




