Mannheim in September
7.6out of 10
Yes, a good time to go
Mild: highs around 20°C. Frequent rain: about 9 rainy days.
20°CAvg high
11°CAvg low
9Rainy days (56 mm)
12:21 hDaylight
07:10Sunrise · 19:31 Sunset
Why this score
- Mild: highs around 20°C
- Frequent rain: about 9 rainy days
What to wear and pack
- Layers you can add or remove
- A light jacket for cooler evenings
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in September varies a lot between years (±3.8 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 | 4°C | 0°C | 59 mm | 12 | – | – | 4.4 |
| February | 6°C | 0°C | 51 mm | 10 | – | – | 5.0 |
| March | 11°C | 3°C | 57 mm | 11 | – | – | 5.7 |
| April | 15°C | 6°C | 45 mm | 10 | – | – | 6.7 |
| May | 19°C | 10°C | 67 mm | 12 | – | – | 7.1 |
| June | 23°C | 13°C | 57 mm | 11 | – | – | 7.7 |
| July | 25°C | 15°C | 61 mm | 11 | – | – | 7.6 |
| August | 25°C | 15°C | 53 mm | 10 | – | – | 7.8 |
| September | 20°C | 11°C | 56 mm | 9 | – | – | 7.6 |
| October | 14°C | 7°C | 60 mm | 11 | – | – | 6.4 |
| November | 8°C | 3°C | 62 mm | 11 | – | – | 5.4 |
| December | 5°C | 1°C | 72 mm | 14 | – | – | 4.4 |
Frequently asked questions
How hot is Mannheim in September?
Daytime highs average 20°C and nights about 11°C.
When is the best time to visit Mannheim?
The best months are August, June, July, September.