St Helier weather in July 2021

  • 20°C maximum daytime temperature in July in St Helier20
    20°C max day temperature
  • 8 hours of sunshine per day
  • 10 days with some rainfall in July in St Helier10
    10 days with some rainfall
  • 14°C minimum night-time temperature in July in St Helier14
    14°C min night temperature
  • 16 hours of daylight per day in July in St Helier16
    16 hours of daylight per day
  • No heat & humidity in July in St Helier0
    No heat & humidity
  • 42 mm monthly rainfall in July in St Helier42
    42 mm of monthly rainfall
  • UV (maximum) index 7 (High) in July in St Helier7
    7 (High) UV index
  • 17°C sea temperature in July in St Helier17
    17°C sea temperature

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The July weather guide for St Helier, Jersey 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.

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How hot is it in St Helier in July?

Daytime temperatures usually reach 20°C in St Helier in July, falling to 14°C at night.

How sunny is it in St Helier in July?

There are normally 8 hours of bright sunshine each day in St Helier in July - that's 53% of daylight hours.

How warm is the sea around St Helier in July?

The average sea temperature around St Helier in July is 17°C.

Does it rain in St Helier in July?

There are usually 10 days with some rain in St Helier in July and the average monthly rainfall is 42mm.

Metric (°C / mm)  |  Imperial (°F / inches)

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St Helier sunrise & sunset times for July 2021

Browse the sunrise & sunset times for St Helier in July 2021. Select a month to view St Helier sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st July 2021 05:08 21:17
Friday, 16th July 2021 05:21 21:08
Saturday, 31st July 2021 05:39 20:49

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