Weather in Grimstad in September

General weather information about Grimstad

Average annual temperature is 7.5 °C

Absolute maximum temperature: 26.8 °C

Absolute minimum temperature: -10.5 °C

Number of sunny days: 132 days

Number of rainy days: 205 days

Number of snow days: 28 days

Look at detailed online map of Grimstad

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

Grimstad air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)7.59.711.314.422.126.822.022.024.015.99.08.2
Average daytime temperature (°C)3.35.94.59.114.920.618.018.417.58.93.01.0
Average temperature (°C)1.22.81.05.510.816.914.815.214.56.61.1-0.8
Average night temperature (°C)-1.00.1-2.21.86.312.211.512.211.74.5-0.9-2.8
Absolute minimum temperature (°C)-7.1-5.5-8.2-6.91.06.89.29.08.6-1.5-8.0-10.5

Grimstad monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)8.010.013.015.017.018.018.016.014.011.08.06.0
Daylight mean duration (h)7.29.311.814.416.818.217.515.312.810.37.96.5
Daylight minimum duration (h)6.08.010.013.015.017.016.014.011.09.06.06.0
Sunshine mean duration (h)1.64.85.69.312.814.311.89.67.65.12.11.3
Precipitation (mm)22466145905443158158155163257212
Sunny days101391319216513968
Rainy days19151217129252617221714
Snow days2010000000079

Grimstad - weather forecast by months

Grimstad weather in januaryGrimstad weather in februaryGrimstad weather in marchGrimstad weather in aprilGrimstad weather in mayGrimstad weather in juneGrimstad weather in julyGrimstad weather in augustGrimstad weather in septemberGrimstad weather in octoberGrimstad weather in novemberGrimstad weather in december

Best time to visit Grimstad:

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

  • April — 9.3(h)
  • May — 12.8(h)
  • June — 14.3(h)
  • July — 11.8(h)
  • August — 9.6(h)

Months with the longest average daylight duration in Grimstad:

  • May — 16.8(h)
  • June — 18.2(h)
  • July — 17.5(h)

The largest precipitation sum in Grimstad is at

  • January — 224(mm)
  • November — 257(mm)
  • December — 212(mm)

    • Weather forecast in the closest to Grimstad admin centers

    Weather forecast in the closest towns to Grimstad

    Explore Grimstad

    See also
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    Frequently asked questions

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