Weather in Illby in August

General weather information about Illby

Average annual temperature is 6.2 °C

Absolute maximum temperature: 28.9 °C

Absolute minimum temperature: -18.9 °C

Number of sunny days: 133 days

Number of rainy days: 173 days

Number of snow days: 59 days

Look at detailed online map of Illby

* Weather data for Illby Finland is based on climate observations for 2026 year

Illby air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)3.46.38.117.723.428.925.328.721.615.39.24.5
Average daytime temperature (°C)-0.3-0.21.410.516.022.021.021.118.57.01.6-2.7
Average temperature (°C)-2.3-2.9-2.25.011.016.816.717.214.94.4-0.3-4.7
Average night temperature (°C)-4.3-7.4-6.7-0.55.010.512.413.411.52.0-2.6-7.4
Absolute minimum temperature (°C)-12.9-18.9-17.4-10.2-2.33.49.110.25.6-3.2-11.3-17.3

Illby monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)7.010.013.015.018.019.018.016.014.011.08.06.0
Daylight mean duration (h)6.79.111.814.617.318.918.115.712.910.17.55.9
Daylight minimum duration (h)5.07.010.013.016.018.017.014.011.08.06.05.0
Sunshine mean duration (h)0.82.45.011.012.815.213.29.37.84.30.90.4
Precipitation (mm)1114584193124979961907465
Sunny days910924161851071267
Rainy days1281161412262123161410
Snow days10101101000031014

Illby - weather forecast by months

Illby weather in januaryIllby weather in februaryIllby weather in marchIllby weather in aprilIllby weather in mayIllby weather in juneIllby weather in julyIllby weather in augustIllby weather in septemberIllby weather in octoberIllby weather in novemberIllby weather in december

Best time to visit Illby:

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

  • April — 11.0(h)
  • May — 12.8(h)
  • June — 15.2(h)
  • July — 13.2(h)
  • August — 9.3(h)

Months with the longest average daylight duration in Illby:

  • May — 17.3(h)
  • June — 18.9(h)
  • July — 18.1(h)
  • August — 15.7(h)

The largest precipitation sum in Illby is at

  • January — 111(mm)
  • July — 97(mm)
  • August — 99(mm)
  • October — 90(mm)

    • Weather forecast in the closest to Illby admin centers

    Weather forecast in the closest towns to Illby

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    Frequently asked questions

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