Ottawa Weather in October
13.4°C high · 3.8°C low · 79 mm rain · 3.7h sun
Oct is a cool month in Ottawa — not peak season, but a good time to avoid crowds.
October at a glance
| Metric | Value |
|---|---|
| Average high | 13.4°C |
| Average low | 3.8°C |
| Rainfall | 79 mm |
| Sunshine | 3.7 hours/day |
| Daylight | 10.7 hours |
What to pack in October
Pack a jacket and layers for Ottawa in October.
Ottawa weather by month
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Frequently asked questions
What is the weather in Ottawa in October?
Highs of 13.4°C and lows of 3.8°C, with about 79 mm of rain and 3.7 hours of sunshine per day.
Is October a good time to visit Ottawa?
Oct is a cool month in Ottawa — not peak season, but a good time to avoid crowds.
What to do in Ottawa · Best time to visit Ottawa
Climate data: Open-Meteo Historical (ERA5), 1991–2020. CC BY 4.0.