Trondheim
August
Weather in Trondheim for August 2025
Your guide to Trondheim weather in August - trends and predictions
In general, the average temperature in Trondheim at the beginning of August is 18.4 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 17 °C by the end of August.
Trondheim experiences an exceptionally high level of rainfall in August, with more than 20 rainy days on average.
Is August a good time to visit Trondheim? check out the best time to travel to Trondheim page.
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8
Dry days
23
Rainy days
0
Snow days
17°/10°
Temperatures
10 km/h
Avg max wind
82 %
Avg humidity
Trondheim in August average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  17° | 2  18° | 3 21° | ||||
| 4 18° | 5 19° | 6 19° | 7  17° | 8 20° | 9 19° | 10 15° |
| 11 13° | 12 16° | 13  22° | 14 19° | 15 19° | 16 16° | 17  17° |
| 18  20° | 19 20° | 20 19° | 21 15° | 22 19° | 23 17° | 24 17° |
| 25 18° | 26 17° | 27 17° | 28 17° | 29  18° | 30 17° | 31 15° |
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Temperatures trend during August in Trondheim
See the weather trend as well as the moving average line
August weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. | Patchy rain possible | 17° /9° | 0.8 mm | 4 | |
| 2 Aug. | Overcast | 18° /9° | 0 mm | 5 | |
| 3 Aug. | Patchy rain possible | 21° /10° | 0.3 mm | 5 | |
| 4 Aug. | Patchy rain possible | 18° /10° | 2.7 mm | 4 | |
| 5 Aug. | Patchy rain possible | 19° /10° | 0.7 mm | 5 | |
| 6 Aug. | Patchy rain possible | 19° /11° | 0.2 mm | 5 | |
| 7 Aug. | Moderate or heavy rain shower | 17° /12° | 16.6 mm | 4 | |
| 8 Aug. | Moderate rain at times | 20° /11° | 6.4 mm | 5 | |
| 9 Aug. | Patchy rain possible | 19° /11° | 0.9 mm | 5 | |
| 10 Aug. | Patchy rain possible | 15° /10° | 5.5 mm | 4 | |
| 11 Aug. | Patchy rain possible | 13° /9° | 6 mm | 4 | |
| 12 Aug. | Moderate rain at times | 16° /9° | 3.8 mm | 4 | |
| 13 Aug. | Heavy rain at times | 22° /9° | 2.2 mm | 5 | |
| 14 Aug. | Patchy rain possible | 19° /10° | 0.7 mm | 4 | |
| 15 Aug. | Heavy rain at times | 19° /11° | 4.6 mm | 4 | |
| 16 Aug. | Moderate or heavy rain shower | 16° /10° | 13.2 mm | 4 | |
| 17 Aug. | Partly cloudy | 17° /8° | 1 mm | 5 | |
| 18 Aug. | Sunny | 20° /7° | 3.7 mm | 5 | |
| 19 Aug. | Sunny | 20° /9° | 1.1 mm | 5 | |
| 20 Aug. | Heavy rain at times | 19° /11° | 2.9 mm | 5 | |
| 21 Aug. | Moderate or heavy rain shower | 15° /11° | 13.6 mm | 4 | |
| 22 Aug. | Moderate rain at times | 19° /9° | 2.1 mm | 5 | |
| 23 Aug. | Partly cloudy | 17° /9° | 3 mm | 4 | |
| 24 Aug. | Patchy rain possible | 17° /9° | 2.8 mm | 4 | |
| 25 Aug. | Light rain shower | 18° /8° | 3.7 mm | 4 | |
| 26 Aug. | Patchy rain possible | 17° /9° | 1.3 mm | 4 | |
| 27 Aug. | Light rain shower | 17° /9° | 7.6 mm | 4 | |
| 28 Aug. | Light rain shower | 17° /10° | 20.8 mm | 4 | |
| 29 Aug. | Light drizzle | 18° /10° | 3.7 mm | 5 | |
| 30 Aug. | Partly cloudy | 17° /9° | 4.3 mm | 4 | |
| 31 Aug. | Partly cloudy | 15° /7° | 1.4 mm | 4 | |
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Important Notice
Our weather forecast for Trondheim in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Trondheim forecast closer to your planned date for the most up-to-date weather information.
Trondheim in August - FAQ
What are the expected maximum and minimum temperatures in Trondheim during August?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Trondheim during August?
Significant rainfall exceeding 178.9 mm is expected in Trondheim during August, occurring over more than 23 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Trondheim during August?
The average wind speed in Trondheim during August is 10 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Trondheim in August?
As you prepare for your trip to Trondheim in August, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Trondheim, during August, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
August rainfall patterns in Trondheim
Explore the daily rainfall trends and prepare for Trondheims August weather 💧
UV exposure in Trondheim during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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