Grenoble Weather in September
Grenoble in September
The short of it: Grenoble in September averages a high of 24 °C (75 °F) and a low of 12 °C (54 °F), with 94 mm (3.7 in) of rain and about 12 h 27 min of daylight. Rated 3 of 5 for a visit; the best months are May and September. Source: TerraClimate climate normals, 1991–2020.
Average high 24° · low 12° · rain 94 mm · daylight 12 h 27 min
✦✦✦ Fair for a visit · best months: May & September
Thirty years of records give Grenoble an average September high of 24°, a low of 12° and some 94 mm of rain. Highs fall 6° against August, to near 24°; nights run about 12°. Wet spells are common — about 94 mm, the 3rd wettest month.
The sun is up for about 12 h 27 min in mid-September, 97 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 3 of 5 for a visit; the finest months here are May and September.
Against its neighbours, Grenoble runs warmer than most and wetter than most in September. Seyssinet-Pariset, 2 km to the W, is 1° cooler by day.
September in Grenoble, by the numbers
- Warmth rank
- 4th warmest of 12
- Rain rank
- 3rd wettest of 12
- Versus August
- 6° colder, 36 mm more rain
- Versus October
- 5° warmer
- Day–night spread
- 12°
- Snow season
- seldom any
- Daylight, mid-month
- 12 h 27 min
- Average wind
- 9 km/h
Neighbouring Towns
September averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| Seyssinet-ParisetAuvergne-Rhône-Alpes | 2 km W | 23° | 12° | 93 mm |
| FontaineAuvergne-Rhône-Alpes | 3 km NW | 23° | 12° | 93 mm |
| ÉchirollesAuvergne-Rhône-Alpes | 4 km S | 24° | 12° | 92 mm |
| Saint-Martin-d'HèresAuvergne-Rhône-Alpes | 4 km E | 24° | 12° | 93 mm |
| EybensAuvergne-Rhône-Alpes | 4 km SE | 23° | 11° | 93 mm |
| SassenageAuvergne-Rhône-Alpes | 6 km NW | 22° | 11° | 97 mm |
| MeylanAuvergne-Rhône-Alpes | 6 km NE | 21° | 10° | 102 mm |
| Le Pont-de-ClaixAuvergne-Rhône-Alpes | 6 km SSW | 24° | 12° | 91 mm |