Tromso weather in August 2025

Expect 13°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Tromso in August. Check more long-term weather averages for Tromso in August before you book your next holiday to Norway in 2025/2026.

  • 13°C maximum daytime temperature in August in Tromso13
    13°C max day temperature
  • 6 hours of sunshine per day
  • 18 days with some rainfall in August in Tromso18
    18 days with some rainfall
  • 6°C minimum night-time temperature in August in Tromso6
    6°C min night temperature
  • 18 hours of daylight per day in August in Tromso18
    18 hours of daylight per day
  • No heat & humidity in August in Tromso0
    No heat & humidity
  • 73 mm monthly rainfall in August in Tromso73
    73 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in August in Tromso2
    2 (Low) UV index
  • 11°C sea temperature in August in Tromso11
    11°C sea temperature

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The August weather guide for Norway (Tromso) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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More about Norway

How warm is it in Tromso in August?

Daytime temperatures usually reach 13°C in Tromso in August, falling to 6°C at night.

How sunny is it in Tromso in August?

There are normally 6 hours of bright sunshine each day in Tromso in August - that's 31% of daylight hours.

Is the sea cold around Tromso in August?

The average sea temperature around Tromso in August is 11°C.

Does it rain in Tromso in August?

There are usually 18 days with some rain in Tromso in August and the average monthly rainfall is 73mm.

Tromso August sunrise & sunset times

Browse the sunrise and sunset times for Tromso in August 2025. Select a month to view Tromso sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 01:23 22:11
Saturday, 16th August 2025 02:51 20:42
Sunday, 31st August 2025 03:58 19:28

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