Monthly climate guide
Trondheim weather in August
With highs near 17°C (62°F) and lows around 9°C (49°F), August feels mild in Trondheim. Rainfall averages about 143 mm (wet) and the sky is often cloudy. Daytime highs are about the same as July and 4°C warmer than September.
What stands out in August
- August is Trondheim's second warmest month.
- It's one of the sunniest months here, with cloud cover around 76%.
- Trondheim is usually about 2°C cooler than Oslo, 390 km away, in August.
- In Trondheim, August is late summer.
Avg high
17°C
62°F
Avg low
9°C
49°F
Rainfall
143 mm
wet
Humidity
86%
relative
Sky
76%
cloud · often cloudy
Trondheim weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | -2°C / 28°F | -6°C / 22°F | 115 mm | 95% | 83% |
| February | -1°C / 30°F | -6°C / 22°F | 107 mm | 95% | 83% |
| March | 1°C / 34°F | -4°C / 24°F | 139 mm | 93% | 83% |
| April | 6°C / 42°F | -1°C / 31°F | 107 mm | 86% | 80% |
| May | 11°C / 53°F | 4°C / 38°F | 91 mm | 80% | 80% |
| June | 15°C / 59°F | 7°C / 45°F | 144 mm | 81% | 81% |
| July | 17°C / 63°F | 10°C / 50°F | 135 mm | 83% | 78% |
| August | 17°C / 62°F | 9°C / 49°F | 143 mm | 86% | 76% |
| September | 13°C / 55°F | 7°C / 44°F | 137 mm | 88% | 78% |
| October | 7°C / 45°F | 2°C / 36°F | 126 mm | 92% | 78% |
| November | 2°C / 36°F | -1°C / 30°F | 104 mm | 94% | 82% |
| December | 0°C / 32°F | -4°C / 25°F | 142 mm | 95% | 84% |
What to pack for August
- A warm sweater or fleece for layering
- A mid-weight jacket
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is August a good time to visit Trondheim?
Compare the months in the chart above to find your ideal window.
Best time to visit Trondheim →Other Norway cities in August
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Trondheim weather in August. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/norway/trondheim/august
<a href="https://weathercompare.eu/weather/norway/trondheim/august">Trondheim weather in August</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/norway/trondheim" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Trondheim weather in August"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/norway/trondheim/august">Trondheim weather in August</a> – WeatherCompare</p>
Trondheim in August: quick answers
Is August a good time to visit Trondheim?
Yes. August is one of the best months for Trondheim, with highs around 17°C and about 143 mm of rain.
How warm is Trondheim in August?
Average highs are about 17°C (62°F) and average lows about 9°C (49°F), based on 10 years of daily data.
Does it rain a lot in Trondheim in August?
Trondheim typically gets around 143 mm of rain in August — wet.
Figures are long-term averages for the area around Trondheim (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.