
#1 in April
19.4°C
NOAA Season Curve (May–Oct):
M
20.2°
J
21.4°
J
22.2°
A
23.1°
S
23.7°
O
23.6°
N
22.3°
Historical 30-year sea surface temperatures across 70 coastlines in Spain for April. Derived from NOAA 0.25° blended satellite and in-situ marine observations.
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.