Guernsey weather in May 2021

  • 15°C maximum daytime temperature in May in Guernsey (St Peter Port)15
    15°C max day temperature
  • 8 hours of sunshine per day
  • 13 days with some rainfall in May in Guernsey (St Peter Port)13
    13 days with some rainfall
  • 9°C minimum night-time temperature in May in Guernsey (St Peter Port)9
    9°C min night temperature
  • 15 hours of daylight per day in May in Guernsey (St Peter Port)15
    15 hours of daylight per day
  • No heat & humidity in May in Guernsey (St Peter Port)0
    No heat & humidity
  • 48 mm monthly rainfall in May in Guernsey (St Peter Port)48
    48 mm of monthly rainfall
  • UV (maximum) index 6 (High) in May in Guernsey (St Peter Port)6
    6 (High) UV index
  • 11°C sea temperature in May in Guernsey (St Peter Port)11
    11°C sea temperature

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The May 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 warm is it in Guernsey in May?

Daytime temperatures usually reach 15°C in St Peter Port, Guernsey in May, falling to 9°C at night.

How sunny is it in Guernsey in May?

There are normally 8 hours of bright sunshine each day in St Peter Port, Guernsey in May - that's 50% of daylight hours.

Is the sea cold around Guernsey in May?

The average sea temperature around St Peter Port, Guernsey in May is 11°C.

Does it rain in Guernsey in May?

There are usually 13 days with some rain in St Peter Port, Guernsey in May and the average monthly rainfall is 48mm.

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

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Guernsey sunrise & sunset times for May 2021

Browse the sunrise & sunset times for Guernsey in May 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
Saturday, 1st May 2021 05:48 20:28
Sunday, 16th May 2021 05:25 20:49
Monday, 31st May 2021 05:09 21:07
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