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Guernsey weather in May 2021
- 1515°C max day temperature
- 1313 days with some rainfall
- 99°C min night temperature
- 1515 hours of daylight per day
- 0No heat & humidity
- 4848 mm of monthly rainfall
- 66 (High) UV index
- 1111°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.
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)
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.
|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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