Chamouny Weather in September
Chamouny in September
The short of it: Chamouny in September averages a high of 24 °C (75 °F) and a low of 18 °C (64 °F), with 64 mm (2.5 in) of rain and about 12 h 0 min of daylight. Rated 4 of 5 for a visit; the best months are September and October. Source: TerraClimate climate normals, 1991–2020.
Average high 24° · low 18° · rain 64 mm · daylight 12 h 0 min
✦✦✦✦ Recommended for a visit · best months: September & October
September in Chamouny brings afternoons near 24° and nights around 18°, with about 64 mm of rain over the month. Much like August: highs about 24°, nights near 18°. Easy travelling weather. Wet spells are common — about 64 mm, the 10th wettest month.
The sun is up for about 12 h 0 min in mid-September, 35 minutes more 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; it is the best month of the year to come.
Against its neighbours, Chamouny runs cooler than most and drier than most in September. Chemin Grenier, 1 km to the W, sees much the same highs.
September in Chamouny, by the numbers
- Warmth rank
- 10th warmest of 12
- Rain rank
- 10th wettest of 12
- Versus August
- 1° warmer, 23 mm less rain
- Versus October
- 2° colder
- Day–night spread
- 6°
- Snow season
- seldom any
- Daylight, mid-month
- 12 h 0 min
- Average wind
- 11 km/h
Neighbouring Towns
September averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| Chemin GrenierSavanne | 1 km W | 24° | 18° | 64 mm |
| SurinamSavanne | 4 km SE | 25° | 18° | 56 mm |
| Rivière des AnguillesSavanne | 9 km E | 24° | 18° | 65 mm |
| Grand BoisSavanne | 10 km NE | 23° | 17° | 72 mm |
| Camp DiableSavanne | 11 km ENE | 24° | 18° | 65 mm |
| L’EscalierGrand Port | 15 km E | 25° | 18° | 60 mm |
| Nouvelle FranceGrand Port | 16 km NE | 21° | 16° | 73 mm |
| Rose BelleGrand Port | 16 km NE | 23° | 17° | 70 mm |