Challans Weather in September
Challans in September
The short of it: Challans in September averages a high of 22 °C (72 °F) and a low of 12 °C (54 °F), with 60 mm (2.4 in) of rain and about 12 h 29 min of daylight. Rated 4 of 5 for a visit; the best months are June and July. Source: TerraClimate climate normals, 1991–2020.
Average high 22° · low 12° · rain 60 mm · daylight 12 h 29 min
✦✦✦✦ Recommended for a visit · best months: June & July
Thirty years of records give Challans an average September high of 22°, a low of 12° and some 60 mm of rain. Much like August: highs about 22°, nights near 12°. Easy travelling weather. Wet spells are common — about 60 mm, the 6th wettest month.
The sun is up for about 12 h 29 min in mid-September, 103 minutes less than a month before.
For the traveller: pack light clothes and a jacket for the evening, and an oilskin besides. The Almanac rates September 4 of 5 for a visit; the finest months here are June and July.
Against its neighbours, Challans runs warmer than most and wetter than most in September. Saint-Hilaire-de-Riez, 15 km to the SSW, sees much the same highs.
September in Challans, by the numbers
- Warmth rank
- 4th warmest of 12
- Rain rank
- 6th wettest of 12
- Versus August
- 3° colder, 15 mm more rain
- Versus October
- 4° warmer
- Day–night spread
- 10°
- Snow season
- seldom any
- Daylight, mid-month
- 12 h 29 min
- Average wind
- 14 km/h
Neighbouring Towns
September averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| Saint-Hilaire-de-RiezPays de la Loire | 15 km SSW | 22° | 13° | 59 mm |
| Saint-Jean-de-MontsPays de la Loire | 15 km WSW | 22° | 13° | 60 mm |
| MachecoulPays de la Loire | 17 km NNE | 22° | 12° | 60 mm |
| Saint-Gilles-Croix-de-ViePays de la Loire | 17 km SSW | 22° | 13° | 59 mm |
| AizenayPays de la Loire | 24 km ESE | 22° | 12° | 58 mm |
| Saint-Philbert-de-Grand-LieuPays de la Loire | 28 km NE | 22° | 12° | 60 mm |
| Le Poiré-sur-ViePays de la Loire | 29 km ESE | 22° | 11° | 59 mm |
| PornicPays de la Loire | 34 km NNW | 22° | 13° | 60 mm |