Mont-Saint-Michel weather in September
Mild and comfortable, with some rainy days. Average highs of 21°C and lows of 13°C, with around 11 rainy days expected throughout the month.
While September isn't our top-rated month for Mont-Saint-Michel, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.
Average high
21°C
Average low
13°C
Rainy days
11 days
Best months to visit
Year-round
What to do in Mont-Saint-Michel in September
Whatever the weather, Mont-Saint-Michel rewards curious visitors. Here are some of the best ways to spend your time:
Climb the spiralling abbey steps to the summit
Explore the medieval village and shops
Walk across the bay at low tide
Visit the visitor centre for tidal information
Watch the tidal bore from Pointe du Grouin
Stay in nearby Dol-de-Bretagne for quieter exploration
What to pack for September
Light layers work well — T-shirts and shorts for the day, a light jacket for evenings. Comfortable walking shoes are a must. Bring a compact umbrella just in case.
Browse other months
January
9C
Cold, with regular rainfall.
February
10C
Cool, with some rainy days.
March
12C
Cool, with regular rainfall.
April
15C
Cool, with some rainy days.
May
17C
Cool, with some rainy days.
June
21C
Mild and comfortable, with some rainy days.
July
22C
Mild and comfortable, with some rainy days.
August
22C
Mild and comfortable, with some rainy days.
September (you are here)
21C
Mild and comfortable, with some rainy days.
October
17C
Cool, with some rainy days.
November
12C
Cool, with regular rainfall.
December
10C
Cool, with regular rainfall.
Book your September trip to Mont-Saint-Michel
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