Trollhättan in September
6.6out of 10
Possible, with caveats
Mild: highs around 16°C. Frequent rain: about 12 rainy days.
16°CAvg high
9°CAvg low
12Rainy days (75 mm)
12:29 hDaylight
06:51Sunrise · 19:20 Sunset
Why this score
- Mild: highs around 16°C
- Frequent rain: about 12 rainy days
- Rain varies a lot between years (±4.1 days)
What to wear and pack
- Layers you can add or remove
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in September varies a lot between years (±4.1 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 2°C | -3°C | 60 mm | 11 | – | – | 4.0 |
| February | 2°C | -3°C | 47 mm | 9 | – | – | 4.3 |
| March | 5°C | -1°C | 43 mm | 9 | – | – | 5.0 |
| April | 11°C | 2°C | 49 mm | 9 | – | – | 6.0 |
| May | 15°C | 6°C | 62 mm | 11 | – | – | 6.5 |
| June | 19°C | 10°C | 86 mm | 13 | – | – | 6.7 |
| July | 21°C | 12°C | 84 mm | 13 | – | – | 7.2 |
| August | 20°C | 12°C | 90 mm | 14 | – | – | 6.9 |
| September | 16°C | 9°C | 75 mm | 12 | – | – | 6.6 |
| October | 10°C | 5°C | 77 mm | 13 | – | – | 5.5 |
| November | 6°C | 1°C | 60 mm | 12 | – | – | 4.8 |
| December | 3°C | -1°C | 65 mm | 12 | – | – | 4.1 |
Frequently asked questions
How hot is Trollhättan in September?
Daytime highs average 16°C and nights about 9°C.
When is the best time to visit Trollhättan?
The best months are July, August, June.