Ottawa weather in January
January in Ottawa: freezing, rainy, with clean air — one of the weakest months to visit.
#12 of 12 months in Ottawa · #850 of 897 destinations to visit in January · comfort 33/100 (tier F)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Ottawa in January
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Ottawa climate normals — January
| Daytime high | -4°C / 25°F | 🥶 freezing |
|---|---|---|
| Nighttime low | -12°C / 10°F | |
| Rainfall | 80 mm / 3.2 in | 🌧 rainy |
| Rainy days | 11 days | |
| Humidity | 75% | 💦 very humid |
| Dew point | -13°C / 9°F | |
| Sunshine | 4.9 h/day | |
| Daylight | 9.2 h | |
| Wind | 16 km/h / 10 mph | |
| Snowfall | 70.1 cm / 27.6 in | |
| Air quality (US AQI) | 31 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Ottawa in January — FAQ
- Is January a good time to visit Ottawa?
- January in Ottawa: freezing, rainy, with clean air — one of the weakest months to visit. It ranks #12 of 12 months for Ottawa on SeasonMap's comfort score (33/100).
- What is the weather like in Ottawa in January?
- In January, Ottawa averages a daily high of -3.8°C and a low of -12.3°C, with about 80.2 mm of rain over roughly 11.4 rainy days.
- What is the air quality in Ottawa in January?
- Ottawa has a mean US Air Quality Index of about 31 in January.
- Does it snow in Ottawa in January?
- Ottawa sees roughly 70.1 cm of snowfall in January.