Best year time to visit Glastonbury

General weather information about Glastonbury

Average annual temperature is 11.8 °C

Absolute maximum temperature: 35.0 °C

Absolute minimum temperature: -22.2 °C

Number of sunny days: 168 days

Number of rainy days: 187 days

Number of snow days: 10 days

Look at detailed online map of Glastonbury

* Weather data for Glastonbury United States is based on climate observations for 2026 year

Glastonbury air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)16.718.315.831.928.233.932.329.835.028.218.717.4
Average daytime temperature (°C)7.26.89.517.821.525.229.126.223.618.89.98.6
Average temperature (°C)3.21.84.011.414.819.023.921.318.813.84.94.1
Average night temperature (°C)-0.2-2.6-0.46.28.514.019.717.215.29.90.90.9
Absolute minimum temperature (°C)-5.6-22.2-5.1-2.41.97.414.412.67.43.7-4.8-6.5

Glastonbury monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.510.611.913.314.515.214.913.812.511.19.99.2
Daylight minimum duration (h)9.010.011.012.014.014.014.013.011.010.09.09.0
Sunshine mean duration (h)4.26.47.48.711.910.511.09.77.67.77.05.1
Precipitation (mm)155541048364712271482286844202
Sunny days1013161520581215162117
Rainy days16111415112523191515914
Snow days541000000000

Glastonbury - weather forecast by months

Glastonbury weather in januaryGlastonbury weather in februaryGlastonbury weather in marchGlastonbury weather in aprilGlastonbury weather in mayGlastonbury weather in juneGlastonbury weather in julyGlastonbury weather in augustGlastonbury weather in septemberGlastonbury weather in octoberGlastonbury weather in novemberGlastonbury weather in december

Best time to visit Glastonbury:

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

  • May — 11.9(h)
  • June — 10.5(h)
  • July — 11.0(h)

The largest precipitation sum in Glastonbury is at

  • January — 155(mm)
  • July — 227(mm)
  • September — 228(mm)
  • December — 202(mm)

    • Weather forecast in the closest to Glastonbury admin centers

    Weather forecast in the closest towns to Glastonbury

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    Frequently asked questions

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