
#1 in August
26.5°C
NOAA Season Curve (May–Oct):
M
19.1°
J
23.4°
J
25.9°
A
26.5°
S
24.8°
O
21.8°
N
18.5°
Complete 12-month annual water temperature curves across all 73 surveyed coastlines in Spain. Includes regional upwelling, bathymetric dynamics, and peak bathing windows.
Compare verified coastal accommodation and transport options across Spain.
Spain presents Europe’s sharpest internal contrast: the Balearic Sea and Costa Blanca reach 26.0–26.5°C in August in calm, high-evaporation conditions, while northern Atlantic Galicia and the Cantabrian Sea hover at 19.5–21.0°C due to open North Atlantic wave fetch, tidal mixing, and periodic Rías upwelling.
Individual coordinate lookups from NOAA 0.25° marine grid.








































































