Guernsey weather in January 2025

Expect 48°F daytime maximum temperatures in the shade with on average 2 hours of sunshine per day in Guernsey in January. Check more long-term weather averages for Guernsey in January before you book your next holiday to Guernsey in 2025/2026.

  • 48°F maximum daytime temperature in January in Guernsey (St Peter Port)48
    48°F max day temperature
  • 2 hours of sunshine per day
  • 20 days with some rainfall in January in Guernsey (St Peter Port)20
    20 days with some rainfall
  • 41°F minimum night-time temperature in January in Guernsey (St Peter Port)41
    41°F min night temperature
  • 9 hours of daylight per day in January in Guernsey (St Peter Port)9
    9 hours of daylight per day
  • No heat & humidity in January in Guernsey (St Peter Port)0
    No heat & humidity
  • 3.6 inches monthly rainfall in January in Guernsey (St Peter Port)3.6
    3.6 inches of monthly rainfall
  • UV (maximum) index 1 (Low) in January in Guernsey (St Peter Port)1
    1 (Low) UV index
  • 50°F sea temperature in January in Guernsey (St Peter Port)50
    50°F sea temperature

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The January 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)  |  Imperial (°F)

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How warm is it in Guernsey in January?

Daytime temperatures usually reach 48°F in St Peter Port, Guernsey in January, falling to 41°F at night.

How sunny is it in Guernsey in January?

There are normally 2 hours of bright sunshine each day in St Peter Port, Guernsey in January - that's 21% of daylight hours.

How warm is the sea around Guernsey in January?

The average sea temperature around St Peter Port, Guernsey in January is 50°F.

Does it rain in Guernsey in January?

There are usually 20 days with some rain in St Peter Port, Guernsey in January and the average monthly rainfall is 3.6 inches.

Guernsey January sunrise & sunset times

Browse the sunrise and sunset times for Guernsey in January 2025. Select a month to view Guernsey sunrise and sunset times for the next 12 months. The Guernsey sunrise and sunset times shown below are for St Peter Port.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 08:06 16:22
Thursday, 16th January 2025 08:00 16:41
Friday, 31st January 2025 07:43 17:05

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