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Warmest sea in Portugal in May

187 coastal locations in Portugal ranked by their typical May sea temperature. Region-wide average in May: 17.3°C. The top of the list is where to find the warmest swimming this month.

Warmest in May

Fora (Iheus Selvagens)

20.7°C May mean in Portugal

Regional May average

17.3°C

across all 187 coastal locations in Portugal

Vs annual mean

-0.4°C

below the year-round regional average

What the Portugal sea feels like in May

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 May fits in the year

May 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 May 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 May

Sorted by the typical May 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 May mean
1 Fora (Iheus Selvagens) Madeira 20.7°C
2 Porto do Moniz Madeira 20.3°C
3 Porto da Cruz Madeira 20.2°C
4 Campanario Madeira 20.0°C
5 Ponta do Sol Madeira 20.0°C
6 Vila De Porto Santo Madeira 20.0°C
7 Canico Madeira 19.9°C
8 Funchal Madeira 19.9°C
9 Machico Madeira 19.9°C
10 Faja da Ovelha Continental Portugal 19.8°C
11 Porto Moniz Madeira 19.8°C
12 Sao Vicente Madeira 19.8°C
13 Canical Madeira 19.8°C
14 Porto Santo Madeira 19.5°C
15 Vila Baleira Madeira 19.5°C
16 Vila do Porto Açores 19.0°C
17 Ilha do Farol Continental Portugal 18.6°C
18 Santa Maria Island Azores 18.5°C
19 Castro Marim Continental Portugal 18.4°C
20 Monte Gordo Continental Portugal 18.4°C
21 Porto de Faro-Olhao Faro 18.4°C
22 Praia Verde Continental Portugal 18.4°C
23 Vila Real de Santo Antonio Continental Portugal 18.4°C
24 Cabanas de Tavira Continental Portugal 18.4°C
25 Cacela Velha Continental Portugal 18.4°C
Show 25 more ▸
26 Fuseta Continental Portugal 18.4°C
27 Manta Rota Continental Portugal 18.4°C
28 Praia do Barril Continental Portugal 18.4°C
29 Tavira Continental Portugal 18.4°C
30 Faro Continental Portugal 18.3°C
31 Ilha da Armona Continental Portugal 18.3°C
32 Olhao Continental Portugal 18.3°C
33 Praia de Faro Continental Portugal 18.3°C
34 Albufeira Continental Portugal 18.0°C
35 Algarve Continental Portugal 18.0°C
36 Almancil Continental Portugal 18.0°C
37 Falesia Beach Continental Portugal 18.0°C
38 Olhos de Agua Continental Portugal 18.0°C
39 Quarteira Continental Portugal 18.0°C
40 Quinta do Lago Beach Continental Portugal 18.0°C
41 Vale do Lobo Continental Portugal 18.0°C
42 Vilamoura Continental Portugal 18.0°C
43 Vila Franca do Campo Azores 17.9°C
44 Ponta Delgada Azores 17.9°C
45 Rosto de Cao Azores 17.9°C
46 Sao Miguel Island Azores 17.8°C
47 Armacao de Pera Continental Portugal 17.8°C
48 Benagil Continental Portugal 17.8°C
49 Lagoa Continental Portugal 17.8°C
50 Porches Continental Portugal 17.8°C

Coldest 10 in Portugal in May

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

# Location May mean
1 Altura Continental Portugal 15.8°C
2 Caminha Continental Portugal 15.8°C
3 Esmoriz Continental Portugal 15.8°C
4 Torreira Continental Portugal 15.8°C
5 Vila do Conde Continental Portugal 15.8°C
6 Esposende Continental Portugal 15.9°C
7 Ofir Continental Portugal 15.9°C
8 Viana do Castelo Continental Portugal 15.9°C
9 Afife Continental Portugal 15.9°C
10 Aver-o-Mar Continental Portugal 15.9°C

More on this region