Warmest sea temperatures in Europe in April: ranked by sea temperature

La Laguna tops the list at 19 °C in April. Ranked from 1991–2020 climate normals across 50 destinations in Europe.

Top three in April: La Laguna (19 °C) , Las Palmas de Gran Canaria (19 °C) , Nicosia (18 °C) . Between first and 50th place the sea temp differs by 8.4 °C.

# Destination Country Sea temp Avg high Avg low Rainfall Wet days Sunshine Sea temp
1 La Laguna Spain 19 °C 17 °C 14 °C 19 mm 4 355 h 19 °C
2 Las Palmas de Gran Canaria Spain 19 °C 20 °C 16 °C 15 mm 4 356 h 19 °C
3 Nicosia Cyprus 18 °C 23 °C 12 °C 29 mm 5 354 h 18 °C
4 Limassol Cyprus 18 °C 22 °C 13 °C 16 mm 4 354 h 18 °C
5 Jerez de la Frontera Spain 17 °C 21 °C 11 °C 48 mm 7 358 h 17 °C
6 Cartagena Spain 16 °C 19 °C 13 °C 26 mm 4 348 h 16 °C
7 Valletta Malta 16 °C 17 °C 14 °C 15 mm 3 343 h 16 °C
8 Marbella Spain 16 °C 19 °C 12 °C 55 mm 7 353 h 16 °C
9 Málaga Spain 16 °C 19 °C 13 °C 40 mm 7 351 h 16 °C
10 Gibraltar Gibraltar 16 °C 19 °C 13 °C 63 mm 7 357 h 16 °C
11 Almería Spain 16 °C 22 °C 13 °C 19 mm 4 358 h 16 °C
12 Pátra Greece 16 °C 19 °C 9.6 °C 71 mm 9 339 h 16 °C
13 Elche Spain 16 °C 21 °C 11 °C 32 mm 5 344 h 16 °C
14 Athens Greece 16 °C 20 °C 10 °C 28 mm 5 348 h 16 °C
15 Alicante Spain 16 °C 20 °C 12 °C 45 mm 7 346 h 16 °C
16 Catania Italy 16 °C 19 °C 11 °C 45 mm 7 324 h 16 °C
17 Palermo Italy 16 °C 19 °C 12 °C 59 mm 9 337 h 16 °C
18 Palma Spain 16 °C 19 °C 12 °C 38 mm 6 345 h 16 °C
19 Messina Italy 16 °C 18 °C 12 °C 79 mm 12 331 h 16 °C
20 Reggio Calabria Italy 16 °C 18 °C 11 °C 83 mm 12 331 h 16 °C
21 Naples Italy 16 °C 18 °C 9.7 °C 96 mm 11 325 h 16 °C
22 Durrës Albania 16 °C 17 °C 11 °C 98 mm 11 327 h 16 °C
23 Valencia Spain 16 °C 21 °C 11 °C 42 mm 6 341 h 16 °C
24 Castelló de la Plana Spain 16 °C 19 °C 11 °C 36 mm 6 340 h 16 °C
25 Lisbon Portugal 15 °C 18 °C 12 °C 53 mm 8 347 h 15 °C
26 Taranto Italy 15 °C 18 °C 10 °C 48 mm 8 336 h 15 °C
27 Livorno Italy 15 °C 17 °C 10 °C 75 mm 10 331 h 15 °C
28 Thessaloníki Greece 15 °C 19 °C 9.9 °C 57 mm 9 324 h 15 °C
29 Genoa Italy 15 °C 17 °C 9.6 °C 109 mm 13 299 h 15 °C
30 Bari Italy 15 °C 17 °C 11 °C 59 mm 10 331 h 15 °C
31 Nice France 15 °C 17 °C 9.4 °C 82 mm 10 331 h 15 °C
32 Monaco Monaco 15 °C 16 °C 9.7 °C 80 mm 10 332 h 15 °C
33 Badalona Spain 14 °C 18 °C 9.4 °C 54 mm 8 334 h 14 °C
34 Barcelona Spain 14 °C 17 °C 9.6 °C 54 mm 8 334 h 14 °C
35 Sabadell Spain 14 °C 17 °C 8.2 °C 63 mm 9 332 h 14 °C
36 Porto Portugal 14 °C 17 °C 9.7 °C 123 mm 12 329 h 14 °C
37 Toulon France 14 °C 17 °C 10 °C 68 mm 8 332 h 14 °C
38 Marseille France 14 °C 17 °C 9.8 °C 66 mm 8 336 h 14 °C
39 Vigo Spain 14 °C 16 °C 9.0 °C 154 mm 13 326 h 14 °C
40 Montpellier France 14 °C 17 °C 8.8 °C 70 mm 8 329 h 14 °C
41 San Marino San Marino 14 °C 14 °C 4.5 °C 75 mm 11 318 h 14 °C
42 Donostia / San Sebastián Spain 14 °C 15 °C 9.0 °C 128 mm 16 291 h 14 °C
43 Bilbao Spain 13 °C 15 °C 9.3 °C 97 mm 15 294 h 13 °C
44 Santander Spain 13 °C 16 °C 8.3 °C 105 mm 14 313 h 13 °C
45 A Coruña Spain 13 °C 16 °C 9.2 °C 109 mm 14 310 h 13 °C
46 Gijón Spain 13 °C 15 °C 8.4 °C 115 mm 15 320 h 13 °C
47 Trieste Italy 13 °C 16 °C 7.9 °C 107 mm 12 313 h 13 °C
48 Oviedo Spain 13 °C 15 °C 5.8 °C 115 mm 16 305 h 13 °C
49 Sochi Russia 12 °C 15 °C 7.3 °C 89 mm 11 304 h 12 °C
50 Novorossiysk Russia 11 °C 14 °C 7.4 °C 44 mm 9 312 h 11 °C

Monthly values for the month named in the ranking; only destinations with a published climate page are ranked. Download this ranking as CSV.

The same ranking one month earlier and later

How this ranking is built

What is ranked
The average sea surface temperature at the coast, in °C, in April, highest first.
Period
1991–2020 climate normals: the same 30 years for every destination, so the list compares like with like.
Who is included
50 destinations in Europe with a published climate page. Neighbouring places that share a climate series are shown once.
Ties
Equal values are ordered by beach score.
Sources
ERA5 / ERA5-Land reanalysis via Open-Meteo; sea temperature from NOAA OISST v2.1. Measured values are reproduced unchanged; only the ordering is ours.

Data sources and method

Normal period
1991–2020
Dataset version
era5-1991-2020-scores1.1
Last processed

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: ranking order, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.