Best year time to visit Portinjoki

General weather information about Portinjoki

Average annual temperature is 4.9 °C

Absolute maximum temperature: 27.4 °C

Absolute minimum temperature: -18.1 °C

Number of sunny days: 119 days

Number of rainy days: 173 days

Number of snow days: 73 days

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

Portinjoki air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)2.53.25.818.422.927.425.126.922.113.14.62.1
Average daytime temperature (°C)-2.2-2.6-0.78.814.819.619.420.517.34.8-1.2-4.7
Average temperature (°C)-3.9-4.7-3.73.010.415.516.217.314.12.8-2.5-6.7
Average night temperature (°C)-5.9-6.8-7.3-2.65.610.512.913.911.11.1-4.0-9.0
Absolute minimum temperature (°C)-16.4-18.1-15.8-13.1-3.12.19.69.96.8-5.5-13.4-15.0

Portinjoki monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)7.010.013.016.018.019.019.017.014.011.08.05.0
Daylight mean duration (h)6.48.911.814.817.619.418.515.912.910.07.25.4
Daylight minimum duration (h)5.07.010.013.016.018.017.014.011.08.06.05.0
Sunshine mean duration (h)0.62.44.711.413.014.911.010.56.94.00.30.2
Precipitation (mm)693373203159168721141166857
Sunny days1256231314498979
Rainy days105116161627222220144
Snow days918141200002918

Portinjoki - weather forecast by months

Portinjoki weather in januaryPortinjoki weather in februaryPortinjoki weather in marchPortinjoki weather in aprilPortinjoki weather in mayPortinjoki weather in junePortinjoki weather in julyPortinjoki weather in augustPortinjoki weather in septemberPortinjoki weather in octoberPortinjoki weather in novemberPortinjoki weather in december

Best time to visit Portinjoki:

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

  • April — 11.4(h)
  • May — 13.0(h)
  • June — 14.9(h)
  • July — 11.0(h)
  • August — 10.5(h)

Months with the longest average daylight duration in Portinjoki:

  • May — 17.6(h)
  • June — 19.4(h)
  • July — 18.5(h)
  • August — 15.9(h)

The largest precipitation sum in Portinjoki is at

  • July — 168(mm)
  • September — 114(mm)
  • October — 116(mm)

    • Weather forecast in the closest to Portinjoki admin centers

    Weather forecast in the closest towns to Portinjoki

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    Frequently asked questions

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