Ottawa weather in January 2025

Expect -6°C daytime maximum temperatures in the shade with on average 3 hours of sunshine per day in Ottawa in January. Check more long-term weather averages for Ottawa in January before you book your next holiday to Ontario in 2025/2026.

  • -6°C maximum daytime temperature in January in Ottawa-6
    -6°C max day temperature
  • 3 hours of sunshine per day
  • 14 days with some rainfall in January in Ottawa14
    14 days with some rainfall
  • -16°C minimum night-time temperature in January in Ottawa-16
    -16°C min night temperature
  • 9 hours of daylight per day in January in Ottawa9
    9 hours of daylight per day
  • No heat & humidity in January in Ottawa0
    No heat & humidity
  • 59 mm monthly rainfall in January in Ottawa59
    59 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in January in Ottawa1
    1 (Low) UV index

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The January weather guide for Ontario (Ottawa) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How cold is it in Ottawa in January?

Daytime temperatures usually reach -6°C in Ottawa in January, falling to -16°C at night.

How sunny is it in Ottawa in January?

There are normally 3 hours of bright sunshine each day in Ottawa in January - that's 36% of daylight hours.

Does it rain in Ottawa in January?

There are usually 14 days with some rain in Ottawa in January and the average monthly rainfall is 59mm. Rain may fall as snow in this month.

Ottawa January sunrise & sunset times

Browse the sunrise and sunset times for Ottawa in January 2025. Select a month to view Ottawa sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 07:43 16:31
Thursday, 16th January 2025 07:38 16:48
Friday, 31st January 2025 07:24 17:09

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