France · Atlantic Europe
Mont-Saint-Michel
Sea
70.2°F
Air
–
UV
–
Refreshing
18–23°C
More like this
All beaches · France
Climate · monthly averages
Sea temperature by month
5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.
39°F
46°F
54°F
61°F
68°F
75°F
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
MinMin °F
4646.0
4645.6
4747.2
5150.8
5555.4
6261.9
6665.6
6666.5
6564.9
6059.9
5554.6
4948.7
AvgAvg °F
4746.7
4646.3
4848.0
5251.9
5757.4
6363.0
6766.7
6867.9
6666.0
6161.0
5555.1
4949.5
MaxMax °F
4747.3
4747.3
4948.8
5353.0
5958.6
6463.8
6867.7
6969.3
6867.5
6262.4
5655.9
5049.9
Warmest in August (67.9°F). Coldest in February (46.3°F). Comfortable for swimming from July to September.
About Mont-Saint-Michel
On the Normandy-Brittany border, where the Couesnon meets the English Channel, the Abbaye du Mont-Saint-Michel crowns a granite islet, its stacked Romanesque and Gothic stonework rising 80 metres above the water. Founded in 966 and UNESCO-listed since 1979, the abbey is reached today by a stilted bridge across the tidal flats. The surrounding bay holds Europe's largest tidal range – up to 14 metres, rushing in faster than a galloping horse. The sea peaks at a cool 16–18 °C from July to September; Rennes airport is 75 minutes by the A84.