Weather in Guernsey in August

General weather information about Guernsey

Average annual temperature is 3.9 °C

Absolute maximum temperature: 31.4 °C

Absolute minimum temperature: -34.2 °C

Number of sunny days: 236 days

Number of rainy days: 94 days

Number of snow days: 35 days

Look at detailed online map of Guernsey

* Weather data for Guernsey Canada is based on climate observations for 2026 year

Guernsey air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)2.72.61.115.628.930.131.431.027.217.96.14.6
Average daytime temperature (°C)-7.9-8.0-5.76.922.425.723.724.621.98.71.0-0.2
Average temperature (°C)-11.4-13.5-12.00.214.419.517.718.315.24.2-2.2-4.1
Average night temperature (°C)-14.8-18.5-17.2-5.37.313.512.212.79.80.4-4.9-7.0
Absolute minimum temperature (°C)-29.2-34.2-29.1-23.6-0.89.26.86.74.5-11.4-16.0-12.2

Guernsey monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.010.012.014.016.016.016.015.013.011.09.08.0
Daylight mean duration (h)8.49.911.913.915.716.616.214.612.710.78.87.9
Daylight minimum duration (h)7.09.010.012.014.016.015.013.011.09.08.07.0
Sunshine mean duration (h)2.76.78.89.311.913.613.511.110.06.44.75.1
Precipitation (mm)1712433263824731825144
Sunny days251824171917191619152126
Rainy days120812131215111163
Snow days587500000532

Guernsey - weather forecast by months

Guernsey weather in januaryGuernsey weather in februaryGuernsey weather in marchGuernsey weather in aprilGuernsey weather in mayGuernsey weather in juneGuernsey weather in julyGuernsey weather in augustGuernsey weather in septemberGuernsey weather in octoberGuernsey weather in novemberGuernsey weather in december

Best time to visit Guernsey:

The best time to visit Guernsey during the most sunny months:

  • May — 11.9(h)
  • June — 13.6(h)
  • July — 13.5(h)
  • August — 11.1(h)

Months with the longest average daylight duration in Guernsey:

  • May — 15.7(h)
  • June — 16.6(h)
  • July — 16.2(h)

The largest precipitation sum in Guernsey is at

  • April — 33(mm)
  • June — 38(mm)
  • August — 73(mm)

    • Weather forecast in the closest to Guernsey admin centers

    Weather forecast in the closest towns to Guernsey

    Explore Guernsey

    See also
    MapTrains schedule
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    Frequently asked questions

    When is the best time to visit Guernsey?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Guernsey.
    What is the weather like in Guernsey?
    See average temperature, rainfall and daylight hours for Guernsey by month in the table above.
    How many sunny days does Guernsey have?
    The monthly weather statistics above show sunshine and rainfall patterns for Guernsey throughout the year.