St Peter Port weather live forecast

Today's maximum temperature in St Peter Port is expected to be 64°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 Sunday 7th September 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 Monday 8th September 2025

Expect broken clouds in St Peter Port, Guernsey with a maximum temperature of 64°F, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 15 mph from the west.

  • 64°F maximum temperature64
    °F maximum temperature
  • 57°F minimum temperature57
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 64°F wind chill64
    °F wind chill
  • Moderate breeze of 15 mph from the West15
    mph wind from W

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St Peter Port weather for Tuesday 9th September 2025

Expect mostly cloudy with light rain in St Peter Port, Guernsey with a maximum temperature of 66°F, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 36% chance of some rain and a moderate breeze of 16 mph from the south.

  • 66°F maximum temperature66
    °F maximum temperature
  • 57°F minimum temperature57
    °F minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 36% chance of some rain36
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 66°F wind chill66
    °F wind chill
  • Moderate breeze of 16 mph from the South16
    mph wind from S

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St Peter Port weather for Wednesday 10th September 2025

Expect mostly cloudy with rain in St Peter Port, Guernsey with a maximum temperature of 66°F, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 66% chance of some rain and a fresh breeze of 19 mph from the south-west.

  • 66°F maximum temperature66
    °F maximum temperature
  • 59°F minimum temperature59
    °F minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 66% chance of some rain66
    % 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 South-West19
    mph wind from SW

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St Peter Port weather for Thursday 11th September 2025

Expect sunshine and showers in St Peter Port, Guernsey with a maximum temperature of 64°F, maximum UV of 4 (Moderate) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 63% chance of some rain and a fresh breeze of 21 mph from the west.

  • 64°F maximum temperature64
    °F maximum temperature
  • 57°F minimum temperature57
    °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)
  • 63% chance of some rain63
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Fresh breeze of 21 mph from the West21
    mph wind from W

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St Peter Port weather for Friday 12th September 2025

Expect mostly cloudy with light rain in St Peter Port, Guernsey with a maximum temperature of 63°F, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 79% chance of some rain and a fresh breeze of 19 mph from the west.

  • 63°F maximum temperature63
    °F maximum temperature
  • 57°F minimum temperature57
    °F minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 79% chance of some rain79
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Fresh breeze of 19 mph from the West19
    mph wind from W

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