Weather in Ottawa in October
Ottawa, Canada averages a high of 13.3°C (55.9°F) and low of 6.1°C (43°F) in October, with 11 rain days and 6.6 hours of daily sunshine. Travel score: 59.4/100 (Mixed). The best time to visit Ottawa is August.
High
13°C56°F
Low
6°C43°F
🌧️
11
rain days
☀️
6.6
hrs/day sunshine
💧
76%
humidity
59— Mixed
October in Ottawa is cool and occasionally wet — mixed conditions — plan indoor alternatives.
What are the average temperatures in Ottawa?
How much does it rain in Ottawa in October?
Ottawa receives an average of 91.2mm of rainfall across 11 rainy days in October. The annual total is 1003.6mm.
What should I pack for Ottawa in October?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Warm coat
Cool weather with highs around 13°C
🧶
Sweaters and warm layers
Layer up for comfort
🎉Visiting Canada in October?
Don't miss any public holidays — check before you book!
Compare Ottawa
Popular comparisons:
How can I plan my trip to Ottawa?
What other cities are near Ottawa?
What are other popular cities in Canada?
What is the weather like in other months in Ottawa?
Data based on 1994–2024 averages · Last updated: 2024-12-31