Best year time to visit Trethevey

General weather information about Trethevey

Average annual temperature is 10.7 °C

Absolute maximum temperature: 26.7 °C

Absolute minimum temperature: -2.8 °C

Number of sunny days: 75 days

Number of rainy days: 290 days

Look at detailed online map of Trethevey

* Weather data for Trethevey United Kingdom is based on climate observations for 2026 year

Trethevey air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)11.511.712.414.218.923.821.421.926.720.913.211.9
Average daytime temperature (°C)7.48.28.910.814.919.716.517.218.614.79.89.3
Average temperature (°C)5.55.86.88.111.516.114.514.915.812.48.47.9
Average night temperature (°C)3.43.54.95.58.212.412.612.913.110.56.86.3
Absolute minimum temperature (°C)-1.9-1.5-1.12.95.67.710.111.39.45.50.0-2.8

Trethevey 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)8.610.011.913.815.516.416.014.512.610.79.08.1
Daylight minimum duration (h)8.09.010.012.014.016.015.013.011.09.08.07.0
Sunshine mean duration (h)3.65.34.77.611.612.49.38.58.05.24.12.6
Precipitation (mm)222312221085769190134108126250250
Sunny days710481714113613
Rainy days241827221416303027252928
Snow days000000000000

Trethevey - weather forecast by months

Trethevey weather in januaryTrethevey weather in februaryTrethevey weather in marchTrethevey weather in aprilTrethevey weather in mayTrethevey weather in juneTrethevey weather in julyTrethevey weather in augustTrethevey weather in septemberTrethevey weather in octoberTrethevey weather in novemberTrethevey weather in december

Best time to visit Trethevey:

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

  • May — 11.6(h)
  • June — 12.4(h)
  • July — 9.3(h)

Months with the longest average daylight duration in Trethevey:

  • May — 15.5(h)
  • June — 16.4(h)
  • July — 16.0(h)

The largest precipitation sum in Trethevey is at

  • January — 222(mm)
  • March — 222(mm)
  • July — 190(mm)
  • November — 250(mm)
  • December — 250(mm)

    • Weather forecast in the closest to Trethevey admin centers

    Weather forecast in the closest towns to Trethevey

    Explore Trethevey

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    Frequently asked questions

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