Weather in Rantonen in September

General weather information about Rantonen

Average annual temperature is 5.6 °C

Absolute maximum temperature: 30.2 °C

Absolute minimum temperature: -19.1 °C

Number of sunny days: 123 days

Number of rainy days: 180 days

Number of snow days: 62 days

Look at detailed online map of Rantonen

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

Rantonen air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)3.15.67.018.022.727.824.830.222.314.27.23.5
Average daytime temperature (°C)-0.9-1.30.610.415.621.620.921.418.05.80.5-3.9
Average temperature (°C)-2.8-4.0-2.84.410.616.516.917.414.53.5-1.2-6.0
Average night temperature (°C)-4.7-7.6-6.5-1.35.010.412.813.611.21.5-3.0-8.2
Absolute minimum temperature (°C)-11.1-19.1-15.2-10.9-2.42.210.79.56.9-4.3-11.4-14.7

Rantonen monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)7.010.013.016.018.019.019.017.014.011.08.06.0
Daylight mean duration (h)6.69.011.814.717.419.118.215.712.910.17.45.7
Daylight minimum duration (h)5.07.010.013.016.018.017.014.011.08.06.05.0
Sunshine mean duration (h)0.52.44.611.512.815.113.09.87.44.20.40.4
Precipitation (mm)93298021413413092791036952
Sunny days111462316124871066
Rainy days116107131827232320148
Snow days981502000011017

Best time to visit Rantonen:

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

  • April — 11.5(h)
  • May — 12.8(h)
  • June — 15.1(h)
  • July — 13.0(h)
  • August — 9.8(h)

Months with the longest average daylight duration in Rantonen:

  • May — 17.4(h)
  • June — 19.1(h)
  • July — 18.2(h)
  • August — 15.7(h)

The largest precipitation sum in Rantonen is at

  • January — 93(mm)
  • July — 130(mm)
  • August — 92(mm)
  • October — 103(mm)