Guernsey weather live forecast

Today's maximum temperature in Guernsey is expected to be 21°C. Select a day from the live weather forecast for Guernsey (St Peter Port) for more weather parameters.

Friday
19th Jun
21

13

6

6
Saturday
20th Jun
19

15

4

7
Sunday
21st Jun
21

15

14

7
Monday
22nd Jun
23

17

12

7
Tuesday
23rd Jun
22

17

10

8

5-day weather forecast updated at 04:00 on Friday 19th June 2026 GMT

More about Guernsey

Guernsey by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Guernsey

Fred Olsen: Top cruise offers for 2026/2027

Sale

Explore latest offers on Fred Olsen Cruises in 2026/2027
Find last minute deals or early bird discounts
Filter offers by price, destination, ship & departure point

Go to Fred Olsen deal >>

View all Fred Olsen offers

Cruise deal finder

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 19th June 2026

Expect broken clouds in Guernsey with a maximum temperature of 21°C, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the west.

21
°C maximum temperature
13
°C minimum temperature
broken clouds
6
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
21
°C wind chill
9
kph wind from W

Guernsey weather for Saturday 20th June 2026

Expect broken clouds in Guernsey with a maximum temperature of 19°C, maximum UV of 7 (High) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south-west.

19
°C maximum temperature
15
°C minimum temperature
broken clouds
4
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
19
°C wind chill
11
kph wind from SW

Guernsey weather for Sunday 21st June 2026

Expect scattered clouds in Guernsey with a maximum temperature of 21°C, maximum UV of 7 (High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the north-east.

21
°C maximum temperature
15
°C minimum temperature
scattered clouds
14
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
18
kph wind from NE

Guernsey weather for Monday 22nd June 2026

Expect scattered clouds in Guernsey with a maximum temperature of 23°C, maximum UV of 7 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the north-east.

23
°C maximum temperature
17
°C minimum temperature
scattered clouds
12
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
23
°C wind chill
16
kph wind from NE

Guernsey weather for Tuesday 23rd June 2026

Expect scattered clouds in Guernsey with a maximum temperature of 22°C, maximum UV of 8 (Very High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the north-west.