St Peter Port weather in July 2025

Expect 19°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in St Peter Port in July. Check more long-term weather averages for St Peter Port in July before you book your next holiday to Guernsey in 2025/2026.

  • 19°C maximum daytime temperature in July in St Peter Port19
    19°C max day temperature
  • 8 hours of sunshine per day
  • 10 days with some rainfall in July in St Peter Port10
    10 days with some rainfall
  • 13°C minimum night-time temperature in July in St Peter Port13
    13°C min night temperature
  • 16 hours of daylight per day in July in St Peter Port16
    16 hours of daylight per day
  • No heat & humidity in July in St Peter Port0
    No heat & humidity
  • 37 mm monthly rainfall in July in St Peter Port37
    37 mm of monthly rainfall
  • UV (maximum) index 7 (High) in July in St Peter Port7
    7 (High) UV index
  • 15°C sea temperature in July in St Peter Port15
    15°C sea temperature

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The July weather guide for Guernsey, represented by St Peter Port, (St Peter Port) 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 Peter Port in July?

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

How sunny is it in St Peter Port in July?

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

How warm is the sea around St Peter Port in July?

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

Does it rain in St Peter Port in July?

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

St Peter Port July sunrise & sunset times

Browse the sunrise and sunset times for St Peter Port in July 2025. Select a month to view St Peter Port sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st July 2025 04:08 20:20
Wednesday, 16th July 2025 04:21 20:10
Thursday, 31st July 2025 04:40 19:52

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