Best year time to visit Heiskala

General weather information about Heiskala

Average annual temperature is 3.2 °C

Absolute maximum temperature: 27.3 °C

Absolute minimum temperature: -22.6 °C

Number of sunny days: 118 days

Number of rainy days: 154 days

Number of snow days: 93 days

Look at detailed online map of Heiskala

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

Heiskala air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)3.62.51.413.421.826.323.727.321.211.02.41.8
Average daytime temperature (°C)-2.9-3.6-3.45.812.918.417.919.815.02.6-3.2-5.8
Average temperature (°C)-4.7-6.0-6.60.48.114.515.016.412.40.7-5.1-7.4
Average night temperature (°C)-6.6-8.2-10.2-4.42.89.611.812.69.7-1.1-7.2-8.9
Absolute minimum temperature (°C)-21.1-17.9-22.6-12.3-4.41.99.07.43.1-8.5-17.0-14.9

Heiskala monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)6.010.013.016.020.021.021.018.014.011.07.04.0
Daylight mean duration (h)5.48.511.815.218.621.119.816.413.09.76.44.2
Daylight minimum duration (h)4.07.010.013.016.020.018.014.011.08.05.03.0
Sunshine mean duration (h)1.01.75.510.611.814.19.010.65.32.80.10.2
Precipitation (mm)7729615637991751141541004751
Sunny days810122216114831194
Rainy days930413192723271694
Snow days14151942000041223

Best time to visit Heiskala:

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

  • April — 10.6(h)
  • May — 11.8(h)
  • June — 14.1(h)
  • July — 9.0(h)
  • August — 10.6(h)

Months with the longest average daylight duration in Heiskala:

  • May — 18.6(h)
  • June — 21.1(h)
  • July — 19.8(h)
  • August — 16.4(h)

The largest precipitation sum in Heiskala is at

  • July — 175(mm)
  • August — 114(mm)
  • September — 154(mm)