Weather in Lastenlinna in September

General weather information about Lastenlinna

Average annual temperature is 5.3 °C

Absolute maximum temperature: 29.1 °C

Absolute minimum temperature: -14.4 °C

Number of sunny days: 128 days

Number of rainy days: 162 days

Number of snow days: 75 days

Look at detailed online map of Lastenlinna

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

Lastenlinna air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)2.64.44.517.122.727.624.329.120.913.66.13.2
Average daytime temperature (°C)-0.9-1.2-0.38.714.620.219.919.917.45.2-0.1-3.8
Average temperature (°C)-2.4-3.0-3.13.09.615.816.616.614.23.1-1.5-5.4
Average night temperature (°C)-4.0-5.4-6.2-1.54.010.413.013.411.31.1-3.2-7.1
Absolute minimum temperature (°C)-11.9-12.5-14.4-8.9-1.92.810.79.65.5-5.7-13.5-12.7

Lastenlinna 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)6.59.011.814.717.519.218.415.812.910.07.35.6
Daylight minimum duration (h)5.07.010.013.016.018.017.014.011.08.06.05.0
Sunshine mean duration (h)0.72.65.211.512.115.011.99.07.04.40.50.2
Precipitation (mm)632479273536146157571087635
Sunny days913722181647101057
Rainy days9298111427242019136
Snow days13131502000021218

Lastenlinna - weather forecast by months

Lastenlinna weather in januaryLastenlinna weather in februaryLastenlinna weather in marchLastenlinna weather in aprilLastenlinna weather in mayLastenlinna weather in juneLastenlinna weather in julyLastenlinna weather in augustLastenlinna weather in septemberLastenlinna weather in octoberLastenlinna weather in novemberLastenlinna weather in december

Best time to visit Lastenlinna:

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

  • April — 11.5(h)
  • May — 12.1(h)
  • June — 15.0(h)
  • July — 11.9(h)
  • August — 9.0(h)

Months with the longest average daylight duration in Lastenlinna:

  • May — 17.5(h)
  • June — 19.2(h)
  • July — 18.4(h)
  • August — 15.8(h)

The largest precipitation sum in Lastenlinna is at

  • July — 146(mm)
  • August — 157(mm)
  • October — 108(mm)

    • Weather forecast in the closest to Lastenlinna admin centers

    Weather forecast in the closest towns to Lastenlinna

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    Frequently asked questions

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