
#1 in August
25.4°C
NOAA Season Curve (May–Oct):
M
18.2°
J
22.4°
J
24.8°
A
25.4°
S
23.2°
O
19.8°
N
16.5°
Complete 12-month annual water temperature curves across all 38 surveyed coastlines in France. Includes regional upwelling, bathymetric dynamics, and peak bathing windows.
France’s Mediterranean coast (French Riviera and Corsica) enjoys sheltered 24.5–25.5°C August waters protected by the Maritime Alps. Conversely, Brittany and Normandy face 8–12 meter tidal ranges and strong currents that continuously mix the water column, limiting summer temperatures to 16.5–18.0°C.
Individual coordinate lookups from NOAA 0.25° marine grid.