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Warmest sea in Portugal in March

187 coastal locations in Portugal ranked by their typical March sea temperature. Region-wide average in March: 15.4°C. The top of the list is where to find the warmest swimming this month.

Warmest in March

Fora (Iheus Selvagens)

19.4°C March mean in Portugal

Regional March average

15.4°C

across all 187 coastal locations in Portugal

Vs annual mean

-2.3°C

below the year-round regional average

What the Portugal sea feels like in March

At this temperature, water will feel cold compared to a swimming pool, but with a bit of experience and practice most people will find the water relatively comfortable to swim in.

Portugal monthly average 15.4°C to 20.0°C
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  • Warmest month August 20.0°C
  • Coldest month March 15.4°C
  • Annual mean 17.7°C
  • Months above 20°C 0 of 12

Where March fits in the year

March sits inside the regional pattern shown on the left. Pick a different month to see how the ranking shifts.

All twelve Portugal month rankings:

Portugal sea temperature map (live)

The map shows today's latest reading at every Portugal location. The list below is based on the typical March mean, useful for trip planning weeks or months ahead.

Zoom in to see individual locations. Click a pin for water temperatures. View list →
°C -2 0 1 3 5 7 9 11 13 15 17 19 21 24 27 30 35

Top 50 warmest Portugal locations in March

Sorted by the typical March mean built from a decade of daily readings at each location. Click any place for its 30-day chart, monthly profile, and full 10-year history.

# Location March mean
1 Fora (Iheus Selvagens) Madeira 19.4°C
2 Porto do Moniz Madeira 18.7°C
3 Porto da Cruz Madeira 18.6°C
4 Campanario Madeira 18.5°C
5 Ponta do Sol Madeira 18.5°C
6 Canico Madeira 18.5°C
7 Funchal Madeira 18.5°C
8 Machico Madeira 18.5°C
9 Canical Madeira 18.4°C
10 Vila De Porto Santo Madeira 18.4°C
11 Faja da Ovelha Continental Portugal 18.4°C
12 Porto Moniz Madeira 18.4°C
13 Sao Vicente Madeira 18.4°C
14 Porto Santo Madeira 18.2°C
15 Vila Baleira Madeira 18.2°C
16 Vila do Porto Açores 17.2°C
17 Santa Maria Island Azores 17.0°C
18 Ilha do Farol Continental Portugal 16.5°C
19 Ponta Delgada Azores 16.5°C
20 Rosto de Cao Azores 16.5°C
21 Vila Franca do Campo Azores 16.5°C
22 Horta,Azores Açores 16.4°C
23 Sao Miguel Island Azores 16.3°C
24 Faja de Baixo Azores 16.3°C
25 Rabo de Peixe Azores 16.3°C
Show 25 more ▸
26 Lajes (Flores) Açores 16.3°C
27 Santa Cruz (Flores) Açores 16.3°C
28 Pico Island Azores 16.3°C
29 Flores Island Azores 16.3°C
30 Porto de Faro-Olhao Faro 16.2°C
31 Faial Island Azores 16.2°C
32 Horta Azores 16.2°C
33 Madalena Azores 16.2°C
34 Santa Cruz Açores 16.2°C
35 Sao Jorge Island Azores 16.2°C
36 Sao Roque do Pico Azores 16.2°C
37 Corvo Island Azores 16.2°C
38 Faro Continental Portugal 16.1°C
39 Ilha da Armona Continental Portugal 16.1°C
40 Olhao Continental Portugal 16.1°C
41 Praia de Faro Continental Portugal 16.1°C
42 Angra do Heroismo Azores 16.1°C
43 Cabanas de Tavira Continental Portugal 16.1°C
44 Cacela Velha Continental Portugal 16.1°C
45 Fuseta Continental Portugal 16.1°C
46 Manta Rota Continental Portugal 16.1°C
47 Praia da Vitoria Azores 16.1°C
48 Praia do Barril Continental Portugal 16.1°C
49 Tavira Continental Portugal 16.1°C
50 Terceira Island Azores 16.1°C

Coldest 10 in Portugal in March

Same data the other way. Helpful if you want to know which Portugal coasts to avoid for swimming in March.

# Location March mean
1 Afife Continental Portugal 13.7°C
2 Moledo Continental Portugal 13.7°C
3 Vila Praia de Ancora Continental Portugal 13.7°C
4 Esposende Continental Portugal 13.8°C
5 Ofir Continental Portugal 13.8°C
6 Viana do Castelo Continental Portugal 13.8°C
7 Aver-o-Mar Continental Portugal 13.9°C
8 Povoa de Varzim Continental Portugal 13.9°C
9 Altura Continental Portugal 13.9°C
10 Caminha Continental Portugal 13.9°C

More on this region