Hamilton weather in January 2025

Expect 28°F daytime maximum temperatures in the shade with on average 3 hours of sunshine per day in Hamilton in January. Check more long-term weather averages for Hamilton in January before you book your next holiday to Ontario in 2025/2026.

  • 28°F maximum daytime temperature in January in Hamilton28
    28°F max day temperature
  • 3 hours of sunshine per day
  • 12 days with some rainfall in January in Hamilton12
    12 days with some rainfall
  • 16°F minimum night-time temperature in January in Hamilton16
    16°F min night temperature
  • 9 hours of daylight per day in January in Hamilton9
    9 hours of daylight per day
  • No heat & humidity in January in Hamilton0
    No heat & humidity
  • 2.4 inches monthly rainfall in January in Hamilton2.4
    2.4 inches of monthly rainfall
  • UV (maximum) index 1 (Low) in January in Hamilton1
    1 (Low) UV index
  • 37°F sea temperature in January in Hamilton37
    37°F sea temperature

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The January weather guide for Ontario (Hamilton) 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)  |  Imperial (°F)

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How cold is it in Hamilton in January?

Daytime temperatures usually reach 28°F in Hamilton in January, falling to 16°F at night.

How sunny is it in Hamilton in January?

There are normally 3 hours of bright sunshine each day in Hamilton in January - that's 32% of daylight hours.

How warm is the sea around Hamilton in January?

The average sea temperature around Hamilton in January is 37°F.

Does it rain in Hamilton in January?

There are usually 12 days with some rain in Hamilton in January and the average monthly rainfall is 2.4 inches. Rain may fall as snow in this month.

Hamilton January sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 07:52 16:55
Thursday, 16th January 2025 07:48 17:11
Friday, 31st January 2025 07:36 17:31

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