Weather in Rennes in September
Rennes, France averages a high of 20.7°C (69.3°F) and low of 12.3°C (54.1°F) in September, with 8 rain days and 9.4 hours of daily sunshine. Travel score: 78.4/100 (Good). The best time to visit Rennes is July.
High
21°C69°F
Low
12°C54°F
🌧️
8
rain days
☀️
9.4
hrs/day sunshine
💧
76%
humidity
78— Good
September in Rennes is mild and mostly dry — good for most activities.
What are the average temperatures in Rennes?
How much does it rain in Rennes in September?
Rennes receives an average of 48.5mm of rainfall across 8 rainy days in September. The annual total is 707.9mm.
What should I pack for Rennes in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 21°C
🧴
Sunscreen SPF 30+
9 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
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