Guernsey weather live forecast

Today's maximum temperature in Guernsey is expected to be 17°C. Select a day from the live weather forecast for Guernsey (St Peter Port) for more weather parameters.

Saturday
9th May
17

12

1

5
Sunday
10th May
15

10

4

3
Monday
11th May
13

9

9

5
Tuesday
12th May
15

10

7

6
Wednesday
13th May
15

10

8

5

5-day weather forecast updated at 04:00 on Saturday 9th May 2026 GMT

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Destination

The 5-day weather forecast for Guernsey, represented by St Peter Port, (St Peter Port) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Guernsey weather forecast by day

Below are the detailed weather forecasts for Guernsey for the next 5 days. The forecasts shown are for St Peter Port and may not represent the whole of Guernsey. Browse more destinations in Guernsey to view more weather forecasts.

Guernsey weather for Saturday 9th May 2026

Expect broken clouds in Guernsey with a maximum temperature of 17°C, maximum UV of 5 (Moderate) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the north-east.

17
°C maximum temperature
12
°C minimum temperature
broken clouds
1
hour of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
17
°C wind chill
24
kph wind from NE

Guernsey weather for Sunday 10th May 2026

Expect mostly cloudy with rain in Guernsey with a maximum temperature of 15°C, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 60% chance of some rain and a fresh breeze of 38 kph from the north-east.

15
°C maximum temperature
10
°C minimum temperature
mostly cloudy with rain
4
hours of sunshine
3
UV index (Moderate)
60
% chance of some rain
<20
mm of rainfall expected
15
°C wind chill
38
kph wind from NE

Guernsey weather for Monday 11th May 2026

Expect scattered clouds in Guernsey with a maximum temperature of 13°C, maximum UV of 5 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 31 kph from the north-east.

13
°C maximum temperature
9
°C minimum temperature
scattered clouds
9
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
31
kph wind from NE

Guernsey weather for Tuesday 12th May 2026

Expect broken clouds in Guernsey with a maximum temperature of 15°C, maximum UV of 6 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the west.

15
°C maximum temperature
10
°C minimum temperature
broken clouds
7
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
20
kph wind from W

Guernsey weather for Wednesday 13th May 2026

Expect broken clouds in Guernsey with a maximum temperature of 15°C, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 26 kph from the west.