Best year time to visit Grasswil

General weather information about Grasswil

Average annual temperature is 10.7 °C

Absolute maximum temperature: 35.1 °C

Absolute minimum temperature: -9.5 °C

Number of sunny days: 138 days

Number of rainy days: 213 days

Number of snow days: 14 days

Look at detailed online map of Grasswil

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

Grasswil air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)12.513.817.218.823.330.432.735.129.525.115.110.9
Average daytime temperature (°C)4.67.510.711.617.725.424.925.323.617.78.46.0
Average temperature (°C)1.92.46.07.513.119.619.619.717.712.35.32.9
Average night temperature (°C)-0.8-1.51.73.38.813.614.714.512.27.72.10.3
Absolute minimum temperature (°C)-9.5-5.8-3.4-3.25.410.89.49.25.92.5-3.7-9.0

Grasswil 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)9.010.311.913.615.115.815.514.212.610.99.48.6
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.08.08.0
Sunshine mean duration (h)2.96.66.77.79.113.412.010.610.57.73.83.7
Precipitation (mm)5318128129133751591425296194173
Sunny days1216127817882015411
Rainy days12819232313232310162518
Snow days740000000012

Grasswil - weather forecast by months

Grasswil weather in januaryGrasswil weather in februaryGrasswil weather in marchGrasswil weather in aprilGrasswil weather in mayGrasswil weather in juneGrasswil weather in julyGrasswil weather in augustGrasswil weather in septemberGrasswil weather in octoberGrasswil weather in novemberGrasswil weather in december

Best time to visit Grasswil:

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

  • June — 13.4(h)
  • July — 12.0(h)
  • August — 10.6(h)
  • September — 10.5(h)

Months with the longest average daylight duration in Grasswil:

  • June — 15.8(h)
  • July — 15.5(h)

The largest precipitation sum in Grasswil is at

  • July — 159(mm)
  • August — 142(mm)
  • November — 194(mm)
  • December — 173(mm)

    • Weather forecast in the closest to Grasswil admin centers

    Weather forecast in the closest towns to Grasswil

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    Frequently asked questions

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