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Ottawa
Top 10 things to do in Ottawa
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Ongoing promotions in Ottawa
Best time to visit Ottawa
Data source：Meteostat
Last updated：2025-09
Weather in Ottawa throughout the year
- Spring (March–May): Average -32–58°F, the climate gradually warms, but early spring can still be chilly, with occasional rainfall. Snow is possible in March. April brings warmer weather and blooming flowers, while May offers pleasant temperatures. Common activities: flower viewing, outdoor walks, cycling. Suggested clothing: layers, including warm base layers, a light jacket, and comfortable shoes.
- Summer (June–August): Average 65–71°F, warm and humid climate with frequent rainfall, especially in August. Common activities: boating, picnics, hiking. Suggested clothing: light and breathable clothing, rain gear.
- Autumn (September–November): Average 61–37°F, temperatures gradually decrease, the weather is dry and comfortable, with occasional rainfall. The vibrant fall foliage is a highlight of autumn. Common activities: leaf peeping, outdoor activities such as hiking. Suggested clothing: warm jacket, comfortable long pants and shoes.
- Winter (December–February): Average -8.5–-36.9°F, cold climate with frequent snow and ice, low temperatures require adequate warmth. Common activities: skiing, ice skating, indoor activities. Suggested clothing: heavy warm clothing, including a down jacket, warm hat, gloves and scarf, waterproof and snow-proof shoes.
Weather in Ottawa
Annual average temperature: approx. 46.4°F / Annual rainfall: approx. 956 mm / Summer humidity: 65%–75% / Rainiest month: August
Ottawa weather by month
Month
Temperature (°F)
Rainfall (mm)
January
16.7°F
59.7
February
19.9°F
44.1
March
31.8°F
54.8
April
44.6°F
100.9
May
58.6°F
76.9
June
65.8°F
112.6
July
71.1°F
109.5
August
67.6°F
142.5
September
61.3°F
54.1
October
50.2°F
57.5
November
37.2°F
51.2
December
27.1°F
92.4
7-day weather forecast for Ottawa
11/14
Saturday
Patchy rain nearby
40°F/34.6°F
11/15
Sunday
Overcast
42.3°F/34.3°F
11/16
Monday
Sunny
43.7°F/34.9°F
11/17
Tuesday
Sunny
48.3°F/32.7°F
11/18
Wednesday
Cloudy
53.2°F/35.6°F
11/19
Thursday
Cloudy
50.5°F/34.7°F
11/20
Friday
Patchy rain nearby
51.6°F/40.6°F
