Best year time to visit Alterswil

General weather information about Alterswil

Average annual temperature is 9.9 °C

Absolute maximum temperature: 33.3 °C

Absolute minimum temperature: -12.7 °C

Number of sunny days: 123 days

Number of rainy days: 222 days

Number of snow days: 20 days

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

Alterswil air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)14.513.018.217.620.426.732.633.326.523.915.112.0
Average daytime temperature (°C)3.46.69.39.815.522.523.223.221.716.97.66.8
Average temperature (°C)0.32.55.46.211.517.918.518.717.112.54.63.5
Average night temperature (°C)-2.8-1.21.62.67.912.914.214.312.98.41.50.6
Absolute minimum temperature (°C)-12.7-8.4-4.3-3.93.89.99.26.75.92.8-5.8-10.1

Alterswil 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)9.010.311.913.615.015.815.414.212.610.99.48.6
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.08.08.0
Sunshine mean duration (h)4.07.37.58.19.813.212.310.710.57.73.94.1
Precipitation (mm)1001915714218913921615680138248207
Sunny days10151183126101816311
Rainy days13818222818252112152517
Snow days852000000023

Alterswil - weather forecast by months

Alterswil weather in januaryAlterswil weather in februaryAlterswil weather in marchAlterswil weather in aprilAlterswil weather in mayAlterswil weather in juneAlterswil weather in julyAlterswil weather in augustAlterswil weather in septemberAlterswil weather in octoberAlterswil weather in novemberAlterswil weather in december

Best time to visit Alterswil:

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

  • June — 13.2(h)
  • July — 12.3(h)
  • August — 10.7(h)
  • September — 10.5(h)

Months with the longest average daylight duration in Alterswil:

  • June — 15.8(h)
  • July — 15.4(h)

The largest precipitation sum in Alterswil is at

  • May — 189(mm)
  • July — 216(mm)
  • November — 248(mm)
  • December — 207(mm)

    • Weather forecast in the closest to Alterswil admin centers

    Weather forecast in the closest towns to Alterswil

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    Frequently asked questions

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