Trollhättan
September
Weather in Trollhättan for September 2026
Your guide to Trollhättan weather in September - trends and predictions
Near Gale Warning (14-17 m/s) - See hour by hour.
Expect cooler weather in the next days in Trollhättan with the forecast suggesting a temperature of 15.9 °C, lower than the historical average.
In general, the average temperature in Trollhättan at the beginning of September is 19 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 15.3 °C by the end of September.
Trollhättan in September brings notable rainfall, with an average of 17 rainy days and a total precipitation of 60.8 mm.
Official Weather Alert ⚠️
Temperatures
Rain 🌧️
13
Dry days
17
Rainy days
0
Snow days
18°/10°
Temperatures
15 km/h
Avg max wind
77 %
Avg humidity
Trollhättan Weather September
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Temperatures trend during September in Trollhättan
See the weather trend as well as the moving average line
September weather in Trollhättan day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 21° /11° | 2.1 mm | 5 | |
| 2 Sept. | Sunny | 18° /11° | 2.8 mm | 4 | |
| 3 Sept. |  Mist | 21° /10° | 0.6 mm | 4 | |
| 4 Sept. |  Patchy rain possible | 17° /11° | 13.2 mm | 1.9 | |
| 5 Sept. | Patchy rain possible | 16° /10° | 9.6 mm | 2.6 | |
| 6 Sept. | Sunny | 20° /10° | 0 mm | 3.3 | |
| 7 Sept. |  Overcast | 20° /13° | 0.1 mm | 6 | |
| 8 Sept. | Overcast | 18° /11° | 16.3 mm | 4 | |
| 9 Sept. | Light rain shower | 13° /8° | 10.4 mm | 3 | |
| 10 Sept. | Mist | 14° /8° | 3.8 mm | 3 | |
| 11 Sept. | Mist | 15° /8° | 0.7 mm | 4 | |
| 12 Sept. | Patchy rain possible | 15° /9° | 0.6 mm | 5 | |
| 13 Sept. | Sunny | 15° /8° | 0 mm | 5 | |
| 14 Sept. | Sunny | 16° /7° | 0 mm | 5 | |
| 15 Sept. | Patchy rain possible | 14° /7° | 0.4 mm | 4 | |
| 16 Sept. | Sunny | 15° /6° | 0 mm | 4 | |
| 17 Sept. | Light rain shower | 14° /8° | 15.8 mm | 4 | |
| 18 Sept. | Light rain shower | 19° /10° | 0.9 mm | 5 | |
| 19 Sept. | Light rain shower | 19° /11° | 6 mm | 5 | |
| 20 Sept. | Light rain shower | 20° /12° | 1.8 mm | 5 | |
| 21 Sept. |  Partly cloudy | 20° /12° | 0.3 mm | 5 | |
| 22 Sept. | Light rain shower | 17° /9° | 2.2 mm | 4 | |
| 23 Sept. | Light rain shower | 17° /8° | 0.4 mm | 4 | |
| 24 Sept. |  Cloudy | 16° /8° | 2.1 mm | 4 | |
| 25 Sept. | Cloudy | 16° /8° | 3.5 mm | 4 | |
| 26 Sept. | Fog | 16° /8° | 0.1 mm | 4 | |
| 27 Sept. | Light rain shower | 15° /7° | 3 mm | 4 | |
| 28 Sept. | Patchy rain possible | 16° /7° | 0.3 mm | 4 | |
| 29 Sept. |  Light drizzle | 14° /7° | 0.5 mm | 4 | |
| 30 Sept. | Patchy rain possible | 14° /7° | 0.1 mm | 3 | |
| Next | |||||
Important Notice
Our weather forecast for Trollhättan in September 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 Trollhättan forecast closer to your planned date for the most up-to-date weather information.
Change Month
Trollhättan in September - FAQ
What are the expected maximum and minimum temperatures in Trollhättan during September?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Trollhättan during September?
Moderate rainfall is anticipated in Trollhättan during September, with a total of 60.8 mm spread over approximately 17 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Trollhättan during September?
The average wind speed in Trollhättan during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Trollhättan
Explore the daily rainfall trends and prepare for Trollhättans September weather 💧
Typically, Trollhättan has 17 rainy days in September with a total of 60.8 mm of rainfall.
UV exposure in Trollhättan during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Trollhättan?Get accurate weather forecasts for Trollhättan, located at latitude 58.284 and longitude 12.289. Stay updated with localized weather information tailored for Trollhättan.
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