St Peter Port weather live forecast

Today's maximum temperature in St Peter Port is expected to be 20°C. Select a day from the live weather forecast for St Peter Port, Guernsey for more weather parameters.

Tuesday
1st Sep
20

15

8

4
Wednesday
2nd Sep
21

16

2

6
Thursday
3rd Sep
21

17

3

5
Friday
4th Sep
21

17

2

4
Saturday
5th Sep
21

16

9

5

5-day weather forecast updated at 04:00 on Tuesday 1st September 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.

St Peter Port weather forecast by day

Below are the detailed weather forecasts for St Peter Port for the next 5 days.

St Peter Port weather for Tuesday 1st September 2026

Expect broken clouds in St Peter Port, Guernsey with a maximum temperature of 20°C, maximum UV of 4 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the west.

20
°C maximum temperature
15
°C minimum temperature
broken clouds
8
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
20
°C wind chill
16
kph wind from W

St Peter Port weather for Wednesday 2nd September 2026

Expect broken clouds in St Peter Port, Guernsey with a maximum temperature of 21°C, maximum UV of 6 (High) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the south-west.

21
°C maximum temperature
16
°C minimum temperature
broken clouds
2
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
24
kph wind from SW

St Peter Port weather for Thursday 3rd September 2026

Expect broken clouds in St Peter Port, Guernsey with a maximum temperature of 21°C, maximum UV of 5 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the south-west.

21
°C maximum temperature
17
°C minimum temperature
broken clouds
3
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
23
kph wind from SW

St Peter Port weather for Friday 4th September 2026

Expect broken clouds in St Peter Port, Guernsey with a maximum temperature of 21°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the south-west.

21
°C maximum temperature
17
°C minimum temperature
broken clouds
2
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
22
kph wind from SW

St Peter Port weather for Saturday 5th September 2026

Expect scattered clouds in St Peter Port, Guernsey with a maximum temperature of 21°C, maximum UV of 5 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the west.