Belfast weather in March 2025

Expect 48°F daytime maximum temperatures in the shade with on average 3 hours of sunshine per day in Belfast in March. Check more long-term weather averages for Belfast in March before you book your next holiday to Northern Ireland in 2025/2026.

  • 48°F maximum daytime temperature in March in Belfast48
    48°F max day temperature
  • 3 hours of sunshine per day
  • 19 days with some rainfall in March in Belfast19
    19 days with some rainfall
  • 36°F minimum night-time temperature in March in Belfast36
    36°F min night temperature
  • 12 hours of daylight per day in March in Belfast12
    12 hours of daylight per day
  • No heat & humidity in March in Belfast0
    No heat & humidity
  • 3.1 inches monthly rainfall in March in Belfast3.1
    3.1 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in March in Belfast2
    2 (Low) UV index
  • 45°F sea temperature in March in Belfast45
    45°F sea temperature

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The March weather guide for Northern Ireland (Belfast) 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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More about the UK

How warm is it in Belfast in March?

Daytime temperatures usually reach 48°F in Belfast in March, falling to 36°F at night.

How sunny is it in Belfast in March?

There are normally 3 hours of bright sunshine each day in Belfast in March - that's 28% of daylight hours.

How warm is the sea around Belfast in March?

The average sea temperature around Belfast in March is 45°F.

Does it rain in Belfast in March?

There are usually 19 days with some rain in Belfast in March and the average monthly rainfall is 3.1 inches.

Belfast March sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st March 2025 07:12 18:00
Sunday, 16th March 2025 06:36 18:30
Monday, 31st March 2025 05:58 18:59

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