Best year time to visit Illnau

General weather information about Illnau

Average annual temperature is 10.8 °C

Absolute maximum temperature: 33.1 °C

Absolute minimum temperature: -11.3 °C

Number of sunny days: 137 days

Number of rainy days: 216 days

Number of snow days: 12 days

Look at detailed online map of Illnau

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

Illnau air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)13.713.418.018.723.630.433.132.928.324.514.110.7
Average daytime temperature (°C)4.77.010.311.617.825.224.624.423.117.68.26.0
Average temperature (°C)2.12.36.07.613.319.719.619.517.812.75.32.9
Average night temperature (°C)-0.5-1.31.83.68.913.715.014.812.78.62.6-0.1
Absolute minimum temperature (°C)-6.7-6.3-3.7-3.25.010.310.69.45.32.2-2.5-11.3

Illnau monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.010.012.014.015.015.015.014.013.011.010.08.0
Daylight mean duration (h)9.010.311.913.615.115.915.514.212.610.99.38.5
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.08.08.0
Sunshine mean duration (h)3.16.57.17.29.113.611.510.210.37.43.33.5
Precipitation (mm)66341531591255317015354131252164
Sunny days11151059178102116510
Rainy days13112125221323219152419
Snow days720000000012

Illnau - weather forecast by months

Illnau weather in januaryIllnau weather in februaryIllnau weather in marchIllnau weather in aprilIllnau weather in mayIllnau weather in juneIllnau weather in julyIllnau weather in augustIllnau weather in septemberIllnau weather in octoberIllnau weather in novemberIllnau weather in december

Best time to visit Illnau:

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

  • June — 13.6(h)
  • July — 11.5(h)
  • August — 10.2(h)
  • September — 10.3(h)

Months with the longest average daylight duration in Illnau:

  • June — 15.9(h)
  • July — 15.5(h)

The largest precipitation sum in Illnau is at

  • April — 159(mm)
  • July — 170(mm)
  • November — 252(mm)
  • December — 164(mm)

    • Weather forecast in the closest to Illnau admin centers

    Weather forecast in the closest towns to Illnau

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    Frequently asked questions

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