Weather in Saint-Quentin-en-Yvelines in September

Saint-Quentin-en-Yvelines, France averages a high of 20.1°C (68.2°F) and low of 11.6°C (52.9°F) in September, with 8 rain days and 8.6 hours of daily sunshine. Travel score: 76.3/100 (Good). The best time to visit Saint-Quentin-en-Yvelines is July.

High
20°C68°F
Low
12°C53°F
🌧️
8
rain days
☀️
8.6
hrs/day sunshine
💧
74%
humidity
76Good

September in Saint-Quentin-en-Yvelines is mild and occasionally wet — good for most activities.

What are the average temperatures in Saint-Quentin-en-Yvelines?

JanFebMarAprMayJunJulAugSep20°12°OctNovDec

How much does it rain in Saint-Quentin-en-Yvelines in September?

Saint-Quentin-en-Yvelines receives an average of 50mm of rainfall across 8 rainy days in September. The annual total is 687.8mm.

JanFebMarAprMayJunJulAugSep8dOctNovDec

What should I pack for Saint-Quentin-en-Yvelines in September?

Essentials

👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 20°C
🧴
Sunscreen SPF 30+
9 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun

Recommended

🧥
Light rain jacket
Some rainy days expected (8 days)
Umbrella
Be prepared for occasional showers

Traveling to France in September?

Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.

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Data based on 1994–2024 averages · Last updated: 2024-12-31