Skip to main content

Seawater. Average temperature. At different depths

Seawater. Average temperature. By months and different depths Catalonia. 2025
0 (m) -20 (m) -50 (m) -80 (m)
January 13.9 13.9 13.9 13.8
February 12.8 12.9 13.2 13.4
March 13.1 13.1 13.3 13.6
April 15.0 14.5 14.0 14.0
May 17.8 16.9 15.4 14.4
June 22.5 20.2 15.3 14.6
July 25.5 23.5 15.3 14.7
August 23.6 22.1 16.1 14.8
September 22.2 21.8 16.9 14.8
October 20.0 19.5 18.1 14.9
November 17.0 17.0 16.7 15.5
December 14.5 14.8 14.8 14.9
Annual average 18.2 17.5 15.3 14.5
Units: Degrees centigrade.
Source: Ministry of Territory, Housing and Ecological Transition. Servei Meteorològic de Catalunya
Note: Observation point: L'Estartit (1 mile east of the Medes Islands), Mr. Josep Pascual Coordinates: 42º 03' N, 3º
Seawater. Average temperature. At different depths Catalonia. 2025
1991-2020 period 0 (m) -20 (m) -50 (m) -80 (m)
January 13.3 13.4 13.4 13.4
February 12.7 12.8 12.8 12.7
March 12.9 12.7 12.7 12.7
April 13.9 13.4 13.2 13.1
May 16.3 15.2 14.3 13.6
June 19.7 17.9 15.2 13.6
July 22.3 20.2 15.2 13.7
August 23.2 21.1 15.4 13.7
September 21.5 20.5 16.5 14.0
October 18.9 18.6 17.5 15.4
November 16.8 16.8 16.6 15.9
December 14.5 14.7 14.7 14.6
Annual average 17.2 16.5 14.8 13.9
Units: Degrees centigrade.
Source: Ministry of Territory, Housing and Ecological Transition. Servei Meteorològic de Catalunya
Note: Observation point: L'Estartit (1 mile east of the Medes Islands), Mr. Josep Pascual Coordinates: 42º 03' N, 3º

Last update: July 17, 2026.

Methodological note

Methodological aspects

The data from the climatology is taken from the Meteorological Service of Catalonia from the Ministry of Territory and Sustainability.

It also includes a table showing the average seawater temperature at different depths, measured from an observation point on l'Estartit on the Costa Brava (1 mile east of Medes Islands; Coordinates: 42º 03' N, 3º 15' E).

When the value is lower than that of the minimum unit to be able to estimate the statistical operation or if it effects statistical confidentiality, the symbol used is "..".