Guernsey weather in July 2021

  • 19°C maximum daytime temperature in July in Guernsey (St Peter Port)19
    19°C max day temperature
  • 8 hours of sunshine per day
  • 10 days with some rainfall in July in Guernsey (St Peter Port)10
    10 days with some rainfall
  • 13°C minimum night-time temperature in July in Guernsey (St Peter Port)13
    13°C min night temperature
  • 16 hours of daylight per day in July in Guernsey (St Peter Port)16
    16 hours of daylight per day
  • No heat & humidity in July in Guernsey (St Peter Port)0
    No heat & humidity
  • 37 mm monthly rainfall in July in Guernsey (St Peter Port)37
    37 mm of monthly rainfall
  • UV (maximum) index 7 (High) in July in Guernsey (St Peter Port)7
    7 (High) UV index
  • 15°C sea temperature in July in Guernsey (St Peter Port)15
    15°C sea temperature

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The July weather guide for Guernsey 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 Guernsey in July?

Daytime temperatures usually reach 19°C in St Peter Port, Guernsey in July, falling to 13°C at night.

How sunny is it in Guernsey in July?

There are normally 8 hours of bright sunshine each day in St Peter Port, Guernsey in July - that's 52% of daylight hours.

How warm is the sea around Guernsey in July?

The average sea temperature around St Peter Port, Guernsey in July is 15°C.

Does it rain in Guernsey in July?

There are usually 10 days with some rain in St Peter Port, Guernsey in July and the average monthly rainfall is 37mm.

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

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Guernsey sunrise & sunset times for July 2021

Browse the sunrise & sunset times for Guernsey in July 2021. Select a month to view Guernsey sunrise & sunset times for the next twelve months. The Guernsey sunrise & sunset times shown below are for St Peter Port.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st July 2021 05:08 21:20
Friday, 16th July 2021 05:21 21:10
Saturday, 31st July 2021 05:40 20:52
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