Tonsberg weather in August 2025

Expect 20°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Tonsberg in August. Check more long-term weather averages for Tonsberg in August before you book your next holiday to Norway in 2025/2026.

  • 20°C maximum daytime temperature in August in Tonsberg20
    20°C max day temperature
  • 7 hours of sunshine per day
  • 15 days with some rainfall in August in Tonsberg15
    15 days with some rainfall
  • 11°C minimum night-time temperature in August in Tonsberg11
    11°C min night temperature
  • 15 hours of daylight per day in August in Tonsberg15
    15 hours of daylight per day
  • No heat & humidity in August in Tonsberg0
    No heat & humidity
  • 86 mm monthly rainfall in August in Tonsberg86
    86 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in August in Tonsberg4
    4 (Moderate) UV index
  • 18°C sea temperature in August in Tonsberg18
    18°C sea temperature

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The August weather guide for Norway (Tonsberg) 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 hot is it in Tonsberg in August?

Daytime temperatures usually reach 20°C in Tonsberg in August, falling to 11°C at night.

How sunny is it in Tonsberg in August?

There are normally 7 hours of bright sunshine each day in Tonsberg in August - that's 43% of daylight hours.

How warm is the sea around Tonsberg in August?

The average sea temperature around Tonsberg in August is 18°C.

Does it rain in Tonsberg in August?

There are usually 15 days with some rain in Tonsberg in August and the average monthly rainfall is 86mm.

Tonsberg August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:04 20:44
Saturday, 16th August 2025 04:39 20:05
Sunday, 31st August 2025 05:13 19:22

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