St Peter Port weather live forecast

Today's maximum temperature in St Peter Port is expected to be 22°C. Select a day from the live weather forecast for St Peter Port, Guernsey for more weather parameters.

• Sunday
  17th Aug
  22
  17
  
  13
  6
• Monday
  18th Aug
  22
  17
  
  7
  6
• Tuesday
  19th Aug
  21
  17
  
  3
  4
• Wednesday
  20th Aug
  20
  16
  
  9
  4
• Thursday
  21st Aug
  18
  15
  
  7
  4

5-day weather forecast updated at 04:00 on Saturday 16th August 2025 GMT

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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 Sunday 17th August 2025

Expect scattered clouds in St Peter Port, Guernsey with a maximum temperature of 22°C, maximum UV of 6 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 33 kph from the east.

• 22
  °C maximum temperature
• 17
  °C minimum temperature
• 
  scattered clouds
• 13
  hours of sunshine
• 6
  UV index (High)
• 0
  mm of rainfall expected
• 0
  no heat & humidity
• 33
  kph wind from E

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St Peter Port weather for Monday 18th August 2025

Expect broken clouds in St Peter Port, Guernsey with a maximum temperature of 22°C, maximum UV of 6 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 29 kph from the east.

• 22
  °C maximum temperature
• 17
  °C minimum temperature
• 
  broken clouds
• 7
  hours of sunshine
• 6
  UV index (High)
• 0
  mm of rainfall expected
• 22
  °C wind chill
• 29
  kph wind from E

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St Peter Port weather for Tuesday 19th August 2025

Expect broken clouds in St Peter Port, Guernsey with a maximum temperature of 21°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 25 kph from the north-east.

• 21
  °C maximum temperature
• 17
  °C minimum temperature
• 
  broken clouds
• 3
  hours of sunshine
• 4
  UV index (Moderate)
• 0
  mm of rainfall expected
• 0
  no heat & humidity
• 25
  kph wind from NE

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St Peter Port weather for Wednesday 20th August 2025

Expect broken clouds in St Peter Port, Guernsey with a maximum temperature of 20°C, maximum UV of 4 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 25 kph from the north-east.

• 20
  °C maximum temperature
• 16
  °C minimum temperature
• 
  broken clouds
• 9
  hours of sunshine
• 4
  UV index (Moderate)
• 0
  mm of rainfall expected
• 0
  no heat & humidity
• 25
  kph wind from NE

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St Peter Port weather for Thursday 21st August 2025

Expect scattered clouds in St Peter Port, Guernsey with a maximum temperature of 18°C, maximum UV of 4 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the north-east.

• 18
  °C maximum temperature
• 15
  °C minimum temperature
• 
  scattered clouds
• 7
  hours of sunshine
• 4
  UV index (Moderate)
• 0
  mm of rainfall expected
• 0
  no heat & humidity
• 19
  kph wind from NE

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Metric (°C / mm)  |  Imperial (°F / inches)

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