St Peter Port weather live forecast

Today's maximum temperature in St Peter Port is expected to be 70°F. Select a day from the live weather forecast for St Peter Port, Guernsey for more weather parameters.

5-day weather forecast updated at 04:00 on Monday 18th August 2025 GMT

More about St Peter Port

St Peter Port by month

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

Recommended for Guernsey

KAYAK: Top UK travel deals of the day

  • Save on UK travel with KAYAK's deals of the day
  • Find deals for destinations around the world
  • Filter by travel deal type, budget & month
Go to KAYAK deal >>

View all KAYAK offers

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 Monday 18th August 2025

Expect sunshine and showers in St Peter Port, Guernsey with a maximum temperature of 70°F, maximum UV of 4 (Moderate) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a moderate breeze of 17 mph from the east.

  • 70°F maximum temperature70
    °F maximum temperature
  • 63°F minimum temperature63
    °F minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 25% chance of some rain25
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 17 mph from the East17
    mph wind from E

Back to top

St Peter Port weather for Tuesday 19th August 2025

Expect mostly cloudy with light rain in St Peter Port, Guernsey with a maximum temperature of 70°F, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 31% chance of some rain and a moderate breeze of 16 mph from the north-east.

  • 70°F maximum temperature70
    °F maximum temperature
  • 63°F minimum temperature63
    °F minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 31% chance of some rain31
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 16 mph from the North-East16
    mph wind from NE

Back to top

St Peter Port weather for Wednesday 20th August 2025

Expect mostly cloudy with rain in St Peter Port, Guernsey with a maximum temperature of 68°F, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 38% chance of some rain and a fresh breeze of 19 mph from the north-east.

  • 68°F maximum temperature68
    °F maximum temperature
  • 61°F minimum temperature61
    °F minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 38% chance of some rain38
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Fresh breeze of 19 mph from the North-East19
    mph wind from NE

Back to top

St Peter Port weather for Thursday 21st August 2025

Expect broken clouds in St Peter Port, Guernsey with a maximum temperature of 64°F, maximum UV of 6 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 14 mph from the north-east.

  • 64°F maximum temperature64
    °F maximum temperature
  • 59°F minimum temperature59
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 14 mph from the North-East14
    mph wind from NE

Back to top

St Peter Port weather for Friday 22nd August 2025

Expect scattered clouds in St Peter Port, Guernsey with a maximum temperature of 68°F, maximum UV of 6 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 5 mph from the north.

  • 68°F maximum temperature68
    °F maximum temperature
  • 59°F minimum temperature59
    °F minimum temperature
  • Scattered clouds
    scattered clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 68°F wind chill68
    °F wind chill
  • Light breeze of 5 mph from the North5
    mph wind from N

Back to top

Auto Europe: Cheap car hire deals worldwide

  • Compare car hire prices to find lowest rate
  • Free cancellation up to 48 hours before pick up
  • Book car hire for over 20,000 destinations worldwide
Go to Auto Europe deal >>

View all Auto Europe offers

Metric (°C)  |  Imperial (°F)

Back to top

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^