Weather in Slettnes in September

General weather information about Slettnes

Average annual temperature is 2.9 °C

Absolute maximum temperature: 26.8 °C

Absolute minimum temperature: -16.1 °C

Number of sunny days: 92 days

Number of rainy days: 169 days

Number of snow days: 104 days

Look at detailed online map of Slettnes

* Weather data for Slettnes Norway is based on climate observations for 2026 year

Slettnes air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)6.07.33.56.916.723.026.826.019.87.22.72.0
Average daytime temperature (°C)-0.30.7-2.93.18.212.515.716.510.42.7-0.4-3.8
Average temperature (°C)-2.7-2.0-5.31.25.79.812.813.78.71.3-2.5-6.3
Average night temperature (°C)-5.1-4.9-8.2-1.43.16.89.410.46.7-0.3-5.3-8.9
Absolute minimum temperature (°C)-12.7-13.1-15.9-5.9-3.91.65.65.92.3-3.9-10.0-16.1

Slettnes monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)4.09.013.019.024.024.024.022.015.011.06.00.0
Daylight mean duration (h)1.17.011.716.422.724.023.918.513.48.82.90.0
Daylight minimum duration (h)0.04.09.014.019.024.022.015.011.06.00.00.0
Sunshine mean duration (h)0.01.15.07.76.813.014.28.44.33.10.40.0
Precipitation (mm)9514711862143393870148614636
Sunny days5539212171005717
Rainy days71331426181421301661
Snow days191025730000101713

Slettnes - weather forecast by months

Slettnes weather in januarySlettnes weather in februarySlettnes weather in marchSlettnes weather in aprilSlettnes weather in maySlettnes weather in juneSlettnes weather in julySlettnes weather in augustSlettnes weather in septemberSlettnes weather in octoberSlettnes weather in novemberSlettnes weather in december

Best time to visit Slettnes:

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

  • April — 7.7(h)
  • May — 6.8(h)
  • June — 13.0(h)
  • July — 14.2(h)
  • August — 8.4(h)

Months with the longest average daylight duration in Slettnes:

  • April — 16.4(h)
  • May — 22.7(h)
  • June — 24.0(h)
  • July — 23.9(h)
  • August — 18.5(h)

The largest precipitation sum in Slettnes is at

  • February — 147(mm)
  • March — 118(mm)
  • May — 143(mm)
  • September — 148(mm)

    • Weather forecast in the closest to Slettnes admin centers

    Weather forecast in the closest towns to Slettnes

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    Frequently asked questions

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