Belfast weather in June 2025

Expect 63°F daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Belfast in June. Check more long-term weather averages for Belfast in June before you book your next holiday to Northern Ireland in 2025/2026.

  • 63°F maximum daytime temperature in June in Belfast63
    63°F max day temperature
  • 6 hours of sunshine per day
  • 15 days with some rainfall in June in Belfast15
    15 days with some rainfall
  • 48°F minimum night-time temperature in June in Belfast48
    48°F min night temperature
  • 17 hours of daylight per day in June in Belfast17
    17 hours of daylight per day
  • No heat & humidity in June in Belfast0
    No heat & humidity
  • 2.7 inches monthly rainfall in June in Belfast2.7
    2.7 inches of monthly rainfall
  • UV (maximum) index 6 (High) in June in Belfast6
    6 (High) UV index
  • 52°F sea temperature in June in Belfast52
    52°F sea temperature

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The June 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 June?

Daytime temperatures usually reach 63°F in Belfast in June, falling to 48°F at night.

How sunny is it in Belfast in June?

There are normally 6 hours of bright sunshine each day in Belfast in June - that's 34% of daylight hours.

How warm is the sea around Belfast in June?

The average sea temperature around Belfast in June is 52°F.

Does it rain in Belfast in June?

There are usually 15 days with some rain in Belfast in June and the average monthly rainfall is 2.7 inches.

Belfast June sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st June 2025 03:55 20:49
Sunday, 15th June 2025 03:47 21:02
Monday, 30th June 2025 03:52 21:03

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