St Helier weather in June 2025

Expect 18°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in St Helier in June. Check more long-term weather averages for St Helier in June before you book your next holiday to Jersey in 2025/2026.

  • 18°C maximum daytime temperature in June in St Helier18
    18°C max day temperature
  • 8 hours of sunshine per day
  • 11 days with some rainfall in June in St Helier11
    11 days with some rainfall
  • 12°C minimum night-time temperature in June in St Helier12
    12°C min night temperature
  • 16 hours of daylight per day in June in St Helier16
    16 hours of daylight per day
  • No heat & humidity in June in St Helier0
    No heat & humidity
  • 48 mm monthly rainfall in June in St Helier48
    48 mm of monthly rainfall
  • UV (maximum) index 7 (High) in June in St Helier7
    7 (High) UV index
  • 14°C sea temperature in June in St Helier14
    14°C sea temperature

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The June weather guide for Jersey, represented by St Helier, (St Helier) 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 hot is it in St Helier in June?

Daytime temperatures usually reach 18°C in St Helier in June, falling to 12°C at night.

How sunny is it in St Helier in June?

There are normally 8 hours of bright sunshine each day in St Helier in June - that's 50% of daylight hours.

How warm is the sea around St Helier in June?

The average sea temperature around St Helier in June is 14°C.

Does it rain in St Helier in June?

There are usually 11 days with some rain in St Helier in June and the average monthly rainfall is 48mm.

St Helier June sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st June 2025 04:08 20:05
Sunday, 15th June 2025 04:03 20:15
Monday, 30th June 2025 04:07 20:17

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