Chatou Weather in September
Chatou in September
The short of it: Chatou in September averages a high of 22 °C (71 °F) and a low of 12 °C (53 °F), with 43 mm (1.7 in) of rain and about 12 h 30 min of daylight. Rated 5 of 5 for a visit; the best months are September and April. Source: TerraClimate climate normals, 1991–2020.
Average high 22° · low 12° · rain 43 mm · daylight 12 h 30 min
✦✦✦✦✦ Recommended for a visit · best months: September & April
Thirty years of records give Chatou an average September high of 22°, a low of 12° and some 43 mm of rain. The year turns hard here: highs drop 4° from August to about 22°, with nights near 12°. Rain is modest, about 43 mm, the 10th wettest month.
The sun is up for about 12 h 30 min in mid-September, 111 minutes less than a month before.
For the traveller: pack light clothes and a jacket for the evening. The Almanac rates September 5 of 5 for a visit; it is the best month of the year to come.
Against its neighbours, Chatou runs cooler than most and wetter than most in September. Rueil-Malmaison, 3 km to the ESE, sees much the same highs.
September in Chatou, by the numbers
- Warmth rank
- 4th warmest of 12
- Rain rank
- 10th wettest of 12
- Versus August
- 4° colder, 6.0 mm less rain
- Versus October
- 5° warmer
- Day–night spread
- 10°
- Snow season
- seldom any
- Daylight, mid-month
- 12 h 30 min
- Average wind
- 12 km/h
Neighbouring Towns
September averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| Rueil-MalmaisonÎle-de-France | 3 km ESE | 22° | 12° | 43 mm |
| NanterreÎle-de-France | 4 km E | 22° | 12° | 43 mm |
| SartrouvilleÎle-de-France | 7 km NNE | 22° | 12° | 43 mm |
| CourbevoieÎle-de-France | 7 km E | 22° | 12° | 43 mm |
| ColombesÎle-de-France | 8 km ENE | 22° | 12° | 43 mm |
| Neuilly-sur-SeineÎle-de-France | 8 km E | 22° | 12° | 43 mm |
| Boulogne-BillancourtÎle-de-France | 9 km SE | 22° | 12° | 43 mm |
| Paris 16 PassyÎle-de-France | 9 km ESE | 22° | 12° | 44 mm |