Challans in September
7.8out of 10
Yes, a good time to go
Mild: highs around 20°C. Some rain: about 8 rainy days.
20°CAvg high
14°CAvg low
8Rainy days (52 mm)
12:19 hDaylight
07:52Sunrise · 20:11 Sunset
Why this score
- Mild: highs around 20°C
- Some rain: about 8 rainy days
- Rain varies a lot between years (±4.7 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 (±4.7 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 | 9°C | 6°C | 71 mm | 12 | – | – | 5.5 |
| February | 10°C | 5°C | 53 mm | 10 | – | – | 5.8 |
| March | 12°C | 7°C | 49 mm | 10 | – | – | 6.2 |
| April | 14°C | 9°C | 47 mm | 10 | – | – | 6.5 |
| May | 18°C | 12°C | 52 mm | 10 | – | – | 7.1 |
| June | 20°C | 14°C | 39 mm | 8 | – | – | 7.7 |
| July | 22°C | 16°C | 37 mm | 8 | – | – | 8.0 |
| August | 22°C | 16°C | 43 mm | 8 | – | – | 8.1 |
| September | 20°C | 14°C | 52 mm | 8 | – | – | 7.8 |
| October | 17°C | 12°C | 75 mm | 12 | – | – | 6.6 |
| November | 13°C | 9°C | 81 mm | 13 | – | – | 5.9 |
| December | 10°C | 6°C | 81 mm | 13 | – | – | 5.5 |
Frequently asked questions
How hot is Challans in September?
Daytime highs average 20°C and nights about 14°C.
When is the best time to visit Challans?
The best months are August, July, September, June.