Tromsø Weather in August
Tromsø in August averages 16°C (61°F) during the day and 9°C (48°F) at night. This is part of the summer season, and quite a bit of rainfall is expected this month.
Rainfall in Tromsø in August
You can expect rain on around 18 days based on historical patterns, with 115 mm (4.5 in) average for the month. Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.
Temperature in Tromsø in August
In August, Tromsø gets moderate temperatures, with highs of 16°C (61°F). Nights cool to around 9°C (48°F). August is part of the summer season. The difference between afternoon and evening temperatures is usually noticeable. Nights drop to 9°C (48°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in Tromsø in August
With about 165 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.If you're a fan of comfortable temperatures and drier conditions, August is a great time to visit.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Norway, check out our Tromsø's climate page.
Tromsø Temperature in August
Min Temperature
9°C (48°F)
Max Temperature
16°C (61°F)
Chance of Rain
61%
Precipitation
115 mm (4.5 in)
Rainy days
18 days
Sunshine
165 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Tromsø typically drop from around 16°C (61°F) at the start of August to approximately 13°C (55°F) by the end. Nights are cool, with lows typically ranging from 7°C (45°F) to 10°C (50°F).
Average temperatures in August
Historical weather for Tromsø in August
Browse day-by-day weather records for Tromsø spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Tromsø historical weather extremes in August
Based on 49 years of weather observations in Tromsø between 1976 and 2025, these are the recorded extremes.
- On August 5, 2004, temperatures climbed to 28°C (82°F), marking the warmest August day on record.
- Tromsø experienced its chilliest August day on August 24, 1983, reaching only 5°C (41°F).
- Tromsø registered its coldest August night on August 15, 1983, with temperatures dropping to -1°C (30°F).
Best Places in Norway in August
Find out more about the weather in Norway and which places have the best travel conditions in this month. See all of Norway in August →
perfect weather
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tolerable
unpleasant
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What to Wear in Tromsø in August
The weather can be unpredictable in August, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Tromsø in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Norway, check out our Tromsø's climate page.
See the full Tromsø climate overview or explore weather in Norway.
