Weather in Sonni in September

General weather information about Sonni

Average annual temperature is 6.8 °C

Absolute maximum temperature: 30.2 °C

Absolute minimum temperature: -17.0 °C

Number of sunny days: 116 days

Number of rainy days: 192 days

Number of snow days: 57 days

Look at detailed online map of Sonni

* Weather data for Sonni Estonia is based on climate observations for 2026 year

Sonni air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)4.66.29.318.424.229.825.930.223.016.110.44.7
Average daytime temperature (°C)-0.20.22.411.316.522.520.521.518.57.92.2-2.1
Average temperature (°C)-2.0-2.0-0.56.411.217.516.317.614.85.30.3-3.7
Average night temperature (°C)-4.0-4.6-3.91.44.310.711.713.711.22.6-1.7-5.5
Absolute minimum temperature (°C)-17.0-16.2-16.0-4.4-3.62.38.89.74.8-2.9-14.2-13.4

Sonni monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)8.010.013.015.017.018.018.016.014.011.08.06.0
Daylight mean duration (h)7.19.311.814.516.918.317.615.412.810.27.86.4
Daylight minimum duration (h)6.08.010.013.015.017.016.014.011.08.06.06.0
Sunshine mean duration (h)1.02.25.210.713.115.013.09.48.24.41.80.7
Precipitation (mm)95416632212386138681206859
Sunny days91181716183510766
Rainy days17513111312282620221510
Snow days512102200002915

Sonni - weather forecast by months

Sonni weather in januarySonni weather in februarySonni weather in marchSonni weather in aprilSonni weather in maySonni weather in juneSonni weather in julySonni weather in augustSonni weather in septemberSonni weather in octoberSonni weather in novemberSonni weather in december

Best time to visit Sonni:

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

  • April — 10.7(h)
  • May — 13.1(h)
  • June — 15.0(h)
  • July — 13.0(h)
  • August — 9.4(h)

Months with the longest average daylight duration in Sonni:

  • May — 16.9(h)
  • June — 18.3(h)
  • July — 17.6(h)

The largest precipitation sum in Sonni is at

  • January — 95(mm)
  • July — 86(mm)
  • August — 138(mm)
  • October — 120(mm)

    • Weather forecast in the closest to Sonni admin centers

    Weather forecast in the closest towns to Sonni

    Explore Sonni

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    Frequently asked questions

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