Guernsey Weather in May
Thinking of visiting Guernsey in May? Expect moderate temperatures reaching 14°C (57°F) during the day, dropping to 11°C (52°F) at night, with some rainfall likely.
Rainfall in Guernsey in May
Historically, approximately 13 days this month are expected to have rain, averaging 49 mm (1.9 in). Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Guernsey in May
May in Guernsey brings typical temperatures with highs around 14°C (57°F) and lows of 11°C (52°F). The difference between afternoon and evening temperatures is usually noticeable. Nights drop to around 11°C (52°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Guernsey in May
The days are predominantly sunny, with an estimated total of around 236 hours of sunshine. Despite the cool temperatures, these sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.If your ideal day consists of dry skies and pleasant temperatures, July, August and September typically offer the best circumstances for Guernsey.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United Kingdom, check out our Guernsey's climate page.
Guernsey Temperature in May
Min Temperature
11°C (52°F)
Max Temperature
14°C (57°F)
Chance of Rain
44%
Precipitation
49 mm (1.9 in)
Rainy days
13 days
Sunshine
236 hours
Percentage Sunshine
48%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Guernsey typically stay consistent throughout May, with daily highs averaging around 14°C (57°F). Nights are cool, with lows typically ranging from 8°C (46°F) to 11°C (52°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Guernsey in May
Browse day-by-day weather records for Guernsey spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Guernsey historical weather extremes in May
The extremes listed below come from historical weather data collected in Guernsey from 1976 through 2026.
- The warmest day in May was on May 25, 2026, with a maximum of 31°C (88°F).
- The coldest May day was on May 4, 1979, with a maximum of 7°C (45°F).
- Guernsey registered its coldest May night on May 2, 1979, with temperatures dropping to 0°C (32°F).
Best Places in the United Kingdom in May
Find out more about the weather in the United Kingdom and which places have the best travel conditions in this month. See all of the United Kingdom in May →
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What to Wear in Guernsey in May
Pack for changing conditions in Guernsey in May. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Rain gear is recommended, you can expect wet weather on multiple days. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Guernsey in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United Kingdom, check out our Guernsey's climate page.
See the full Guernsey climate overview or explore weather in the United Kingdom.
