
#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 70 surveyed coastlines in Spain. Includes regional upwelling, bathymetric dynamics, and peak bathing windows.
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.





































































