St John weather in January 2026

Expect daytime maximum temperatures of -2°C in St John in January based on long-term weather averages. There are 4 hours of sunshine per day on average with 13 days with some rainfall and typically 126 mm of rainfall in the month, which might fall as snow.

  • -2°C maximum daytime temperature in January in St John-2
    -2°C max day temperature
  • 4 hours of sunshine per day
  • 13 days with some rainfall in January in St John13
    13 days with some rainfall
  • -11°C minimum night-time temperature in January in St John-11
    -11°C min night temperature
  • 9 hours of daylight per day in January in St John9
    9 hours of daylight per day
  • No heat & humidity in January in St John0
    No heat & humidity
  • 126 mm monthly rainfall in January in St John126
    126 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in January in St John1
    1 (Low) UV index
  • 2°C sea temperature in January in St John2
    2°C sea temperature

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The January weather guide for New Brunswick (St John) 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 St John in January?

Daytime temperatures usually reach -2°C in St John in January, falling to -11°C at night.

How sunny is it in St John in January?

There are normally 4 hours of bright sunshine each day in St John in January - that's 38% of daylight hours.

Is the sea cold around St John in January?

The average sea temperature around St John in January is 2°C.

Does it rain in St John in January?

There are usually 13 days with some rain in St John in January and the average monthly rainfall is 126mm. Rain may fall as snow in this month.

St John January sunrise & sunset times

Browse the sunrise and sunset times for St John in January 2026. Select a month to view St John sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 08:04 16:53
Friday, 16th January 2026 07:59 17:09
Saturday, 31st January 2026 07:46 17:30

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