The Frontier Gazette & Almanack
“Fair Warning for Every Town Under the Sky” · Est. 1881
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Saint-Cloud Weather in September

Saint-Cloud in September

The short of it: Saint-Cloud in September averages a high of 21 °C (70 °F) and a low of 12 °C (53 °F), with 45 mm (1.8 in) of rain and about 12 h 30 min of daylight. Rated 5 of 5 for a visit; the best months are September and June. Source: TerraClimate climate normals, 1991–2020.

Average high 21° · low 12° · rain 45 mm · daylight 12 h 30 min

✦✦✦✦✦ Recommended for a visit · best months: September & June

September in Saint-Cloud brings afternoons near 21° and nights around 12°, with about 45 mm of rain over the month. The year turns hard here: highs drop 4° from August to about 21°, with nights near 12°. Rain is modest, about 45 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, Saint-Cloud runs cooler than most and wetter than most in September. Boulogne-Billancourt, 3 km to the ESE, is 1° warmer by day.

September in Saint-Cloud, by the numbers

Warmth rank
4th warmest of 12
Rain rank
10th wettest of 12
Versus August
4° colder, 5.0 mm less rain
Versus October
5° warmer
Day–night spread
9°
Snow season
seldom any
Daylight, mid-month
12 h 30 min
Average wind
13 km/h

Neighbouring Towns

September averages · distance by the crow’s flight
TownDistanceHighLowRain
Boulogne-BillancourtÎle-de-France3 km ESE22°12°43 mm
Rueil-MalmaisonÎle-de-France4 km NNW22°12°43 mm
NanterreÎle-de-France5 km N22°12°43 mm
Paris 16 PassyÎle-de-France6 km ENE22°12°44 mm
Issy-les-MoulineauxÎle-de-France6 km ESE21°12°45 mm
Neuilly-sur-SeineÎle-de-France7 km NE22°12°43 mm
ClamartÎle-de-France7 km SE21°12°45 mm
CourbevoieÎle-de-France7 km NE22°12°43 mm

The Almanac · Saint-Cloud Month by Month

Climate normals 1991–2020 · pick a month
PrecipitationAverage highAverage low
Recommended
The Almanac Speaks
September
✦✦✦✦✦

The year turns hard here: highs drop 4° from August to about 21°, with nights near 12°. Rain is modest, about 45 mm, the 10th wettest month.

Climate of Saint-Cloud by month
MonthHighLowRainWindDaylightVisit
January7°2°52 mm16 km/h8 h 41 min✦✦
February9°2°44 mm16 km/h10 h 5 min✦✦✦
March13°5°45 mm16 km/h11 h 44 min✦✦✦✦
April16°7°47 mm15 km/h13 h 38 min✦✦✦✦
May20°10°59 mm14 km/h15 h 15 min✦✦✦✦
June23°13°49 mm14 km/h16 h 9 min✦✦✦✦
July25°15°59 mm13 km/h15 h 47 min✦✦✦✦
August25°15°50 mm12 km/h14 h 21 min✦✦✦✦
September21°12°45 mm13 km/h12 h 30 min✦✦✦✦✦
October16°9°64 mm14 km/h10 h 41 min✦✦✦✦
November11°5°57 mm14 km/h9 h 4 min✦✦✦
December8°3°68 mm16 km/h8 h 16 min✦✦

Questions Readers Ask about Saint-Cloud in September

Answered from the wire & the Almanac

What is the weather like in Saint-Cloud in September?

Days average 21 °C (70 °F) and nights 12 °C (53 °F), with about 45 mm (1.8 in) of rain over the month. The year turns hard here: highs drop 4° from August to about 21°, with nights near 12°. Rain is modest, about 45 mm, the 10th wettest month.

Is September a good time to visit Saint-Cloud?

The Almanac gives September 5 of 5 (recommended). It is the best month of the year to visit.

How long are the days in Saint-Cloud in September?

In mid-September the sun is up for about 12 h 30 min. The days are shortening — from 8 h 16 min in December to 16 h 9 min in June.

Does it snow in Saint-Cloud in September?

Hardly — September nights average 12 °C (53 °F), above freezing.

What should I pack for Saint-Cloud in September?

Light clothes and a jacket for the evening.

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The Editor’s Remark

“Weather is the only news that never grows stale. Each morning the sky writes its own front page, and we at Wanted Weather are but its telegraph operators.”— J. Whitmore, Editor