Idstein in September
7.2out of 10
Possible, with caveats
Mild: highs around 19°C. Frequent rain: about 10 rainy days.
19°CAvg high
10°CAvg low
10Rainy days (62 mm)
12:21 hDaylight
07:11Sunrise · 19:32 Sunset
Why this score
- Mild: highs around 19°C
- Frequent rain: about 10 rainy days
- Rain varies a lot between years (±4.6 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 (±4.6 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 | 3°C | -1°C | 56 mm | 12 | – | – | 4.3 |
| February | 5°C | -1°C | 48 mm | 10 | – | – | 4.8 |
| March | 9°C | 2°C | 56 mm | 12 | – | – | 5.3 |
| April | 14°C | 5°C | 52 mm | 11 | – | – | 6.4 |
| May | 18°C | 8°C | 70 mm | 12 | – | – | 6.8 |
| June | 21°C | 12°C | 72 mm | 12 | – | – | 7.4 |
| July | 23°C | 14°C | 75 mm | 13 | – | – | 7.3 |
| August | 23°C | 13°C | 70 mm | 12 | – | – | 7.5 |
| September | 19°C | 10°C | 62 mm | 10 | – | – | 7.2 |
| October | 13°C | 6°C | 61 mm | 12 | – | – | 6.1 |
| November | 7°C | 3°C | 59 mm | 11 | – | – | 5.2 |
| December | 4°C | 0°C | 69 mm | 13 | – | – | 4.2 |
Frequently asked questions
How hot is Idstein in September?
Daytime highs average 19°C and nights about 10°C.
When is the best time to visit Idstein?
The best months are August, June, July, September.