Month-by-month travel weather
Ottawa October weather
Ottawa, Canada · October
Layers become high-use again
Crisp fall weather sets in. Nights cool fast, and rain can add chill.
October averages at a glance
Average low
around 4–6°C
Average high
around 12–15°C
Average precipitation
around 55–90 mm
Precip days
about 8–11 days
What to wear in October in Ottawa
Actual feel will change with wind and rain, but use the suggestions below to build a comfortable layered outfit.
- • Coat/jacket + layers
- • Optional umbrella
Travel tips for visiting Ottawa in October
- • Long evenings outdoors call for one warmer layer.
October weather in Ottawa — FAQ
Q. Is October cold?
A. It’s cool and crisp, with colder evenings.
Explore Ottawa
These pages are connected so you can compare conditions and decide for yourself.