Best year time to visit Willisau

General weather information about Willisau

Average annual temperature is 10.8 °C

Absolute maximum temperature: 33.2 °C

Absolute minimum temperature: -8.1 °C

Number of sunny days: 141 days

Number of rainy days: 214 days

Number of snow days: 10 days

Look at detailed online map of Willisau

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

Willisau air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)13.514.717.918.723.330.333.233.127.925.015.612.0
Average daytime temperature (°C)5.07.410.611.517.525.224.524.422.817.78.96.6
Average temperature (°C)2.22.76.17.413.019.719.619.317.512.45.43.2
Average night temperature (°C)-0.6-1.21.83.48.713.914.914.412.57.91.90.1
Absolute minimum temperature (°C)-8.1-5.0-2.4-3.54.910.810.39.45.73.0-3.6-7.8

Willisau 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)2.96.46.56.78.513.311.510.310.27.63.53.5
Precipitation (mm)5532143166180672541446395206177
Sunny days12171168146141918412
Rainy days14919242316251711132518
Snow days521000000011

Willisau - weather forecast by months

Willisau weather in januaryWillisau weather in februaryWillisau weather in marchWillisau weather in aprilWillisau weather in mayWillisau weather in juneWillisau weather in julyWillisau weather in augustWillisau weather in septemberWillisau weather in octoberWillisau weather in novemberWillisau weather in december

Best time to visit Willisau:

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

  • June — 13.3(h)
  • July — 11.5(h)
  • August — 10.3(h)
  • September — 10.2(h)

Months with the longest average daylight duration in Willisau:

  • June — 15.8(h)
  • July — 15.5(h)

The largest precipitation sum in Willisau is at

  • April — 166(mm)
  • May — 180(mm)
  • July — 254(mm)
  • November — 206(mm)
  • December — 177(mm)

    • Weather forecast in the closest to Willisau admin centers

    Weather forecast in the closest towns to Willisau

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    Frequently asked questions

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