Guernsey weather live forecast

Today's maximum temperature in Guernsey is expected to be 13°C. Select a day from the live weather forecast for Guernsey (St Peter Port) for more weather parameters.

Friday
12th Dec
13

10

1

0
Saturday
13th Dec
12

9

6

1
Sunday
14th Dec
12

9

2

0
Monday
15th Dec
13

9

2

0
Tuesday
16th Dec
12

9

3

0

5-day weather forecast updated at 04:00 on Friday 12th December 2025 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 Friday 12th December 2025

Expect mostly cloudy with light rain in Guernsey with a maximum temperature of 13°C and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 18% chance of some rain and a moderate breeze of 27 kph from the south.

13
°C maximum temperature
10
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
0
UV index (None)
18
% chance of some rain
<2
mm of rainfall expected
13
°C wind chill
27
kph wind from S

Guernsey weather for Saturday 13th December 2025

Expect scattered clouds in Guernsey with a maximum temperature of 12°C, maximum UV of 1 (Low) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south-west.

12
°C maximum temperature
9
°C minimum temperature
scattered clouds
6
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
14
kph wind from SW

Guernsey weather for Sunday 14th December 2025

Expect broken clouds in Guernsey with a maximum temperature of 12°C and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 27 kph from the south.

12
°C maximum temperature
9
°C minimum temperature
broken clouds
2
hours of sunshine
0
UV index (None)
0
mm of rainfall expected
12
°C wind chill
27
kph wind from S

Guernsey weather for Monday 15th December 2025

Expect mostly cloudy with light rain in Guernsey with a maximum temperature of 13°C and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 40% chance of some rain and a fresh breeze of 31 kph from the south.

13
°C maximum temperature
9
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
0
UV index (None)
40
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
31
kph wind from S

Guernsey weather for Tuesday 16th December 2025

Expect mostly cloudy with rain in Guernsey with a maximum temperature of 12°C and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 57% chance of some rain and a moderate breeze of 22 kph from the north-west.