Guernsey weather live forecast

Today's maximum temperature in Guernsey is expected to be 12°C. Select a day from the live weather forecast for Guernsey (St Peter Port) for more weather parameters.

Friday
20th Mar
12

10

8

3
Saturday
21st Mar
12

9

9

3
Sunday
22nd Mar
11

9

3

3
Monday
23rd Mar
12

9

2

3
Tuesday
24th Mar
12

9

0

3

5-day weather forecast updated at 04:00 on Thursday 19th March 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 Friday 20th March 2026

Expect scattered clouds in Guernsey with a maximum temperature of 12°C, maximum UV of 3 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the north-east.

12
°C maximum temperature
10
°C minimum temperature
scattered clouds
8
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
12
°C wind chill
19
kph wind from NE

Guernsey weather for Saturday 21st March 2026

Expect scattered clouds in Guernsey with a maximum temperature of 12°C, maximum UV of 3 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the north-east.

12
°C maximum temperature
9
°C minimum temperature
scattered clouds
9
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
12
°C wind chill
21
kph wind from NE

Guernsey weather for Sunday 22nd March 2026

Expect broken clouds in Guernsey with a maximum temperature of 11°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the north-east.

11
°C maximum temperature
9
°C minimum temperature
broken clouds
3
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
14
kph wind from NE

Guernsey weather for Monday 23rd March 2026

Expect broken clouds in Guernsey with a maximum temperature of 12°C, maximum UV of 3 (Moderate) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-west.

12
°C maximum temperature
9
°C minimum temperature
broken clouds
2
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
12
°C wind chill
16
kph wind from SW

Guernsey weather for Tuesday 24th March 2026

Expect overcast skies in Guernsey with a maximum temperature of 12°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 27 kph from the south-west.