St John weather in March 2025

Expect 37°F daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in St John in March. Check more long-term weather averages for St John in March before you book your next holiday to New Brunswick in 2025/2026.

  • 37°F maximum daytime temperature in March in St John37
    37°F max day temperature
  • 5 hours of sunshine per day
  • 12 days with some rainfall in March in St John12
    12 days with some rainfall
  • 23°F minimum night-time temperature in March in St John23
    23°F min night temperature
  • 12 hours of daylight per day in March in St John12
    12 hours of daylight per day
  • No heat & humidity in March in St John0
    No heat & humidity
  • 3.7 inches monthly rainfall in March in St John3.7
    3.7 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in March in St John3
    3 (Moderate) UV index
  • 34°F sea temperature in March in St John34
    34°F sea temperature

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The March 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)  |  Imperial (°F)

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How cold is it in St John in March?

Daytime temperatures usually reach 37°F in St John in March, falling to 23°F at night.

How sunny is it in St John in March?

There are normally 5 hours of bright sunshine each day in St John in March - that's 39% of daylight hours.

How warm is the sea around St John in March?

The average sea temperature around St John in March is 34°F.

Does it rain in St John in March?

There are usually 12 days with some rain in St John in March and the average monthly rainfall is 3.7 inches. Rain may fall as snow in this month.

St John March sunrise & sunset times

Browse the sunrise and sunset times for St John in March 2025. Select a month to view St John sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st March 2025 07:02 18:12
Sunday, 16th March 2025 06:34 18:32
Monday, 31st March 2025 06:06 18:51

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