Best year time to visit Forna

General weather information about Forna

Average annual temperature is 9.7 °C

Absolute maximum temperature: 33.1 °C

Absolute minimum temperature: -17.9 °C

Number of sunny days: 156 days

Number of rainy days: 184 days

Number of snow days: 25 days

Look at detailed online map of Forna

* Weather data for Forna Switzerland is based on climate observations for 2026 year

Forna air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)11.615.115.019.721.928.128.733.126.625.814.712.3
Average daytime temperature (°C)5.28.710.212.116.321.623.624.220.416.58.36.4
Average temperature (°C)1.53.25.47.112.116.718.818.915.411.73.41.1
Average night temperature (°C)-2.1-1.50.21.37.210.912.612.49.56.3-1.4-3.9
Absolute minimum temperature (°C)-7.2-6.1-3.9-4.72.84.16.86.42.2-0.7-6.3-17.9

Forna monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.08.0
Daylight mean duration (h)9.110.311.913.615.015.715.414.112.610.99.58.7
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.08.08.0
Sunshine mean duration (h)6.08.18.29.39.612.412.910.89.26.86.15.3
Precipitation (mm)351710010120418213020619625410381
Sunny days181713123691518171117
Rainy days931717282422161214148
Snow days481100000056

Forna - weather forecast by months

Forna weather in januaryForna weather in februaryForna weather in marchForna weather in aprilForna weather in mayForna weather in juneForna weather in julyForna weather in augustForna weather in septemberForna weather in octoberForna weather in novemberForna weather in december

Best time to visit Forna:

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

  • June — 12.4(h)
  • July — 12.9(h)

Months with the longest average daylight duration in Forna:

  • June — 15.7(h)
  • July — 15.4(h)

The largest precipitation sum in Forna is at

  • May — 204(mm)
  • June — 182(mm)
  • August — 206(mm)
  • September — 196(mm)
  • October — 254(mm)

    • Weather forecast in the closest to Forna admin centers

    Weather forecast in the closest towns to Forna

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    Frequently asked questions

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