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Warmest sea in Portugal in December

187 coastal locations in Portugal ranked by their typical December sea temperature. Region-wide average in December: 16.9°C. The top of the list is where to find the warmest swimming this month.

Warmest in December

Fora (Iheus Selvagens)

21.3°C December mean in Portugal

Regional December average

16.9°C

across all 187 coastal locations in Portugal

Vs annual mean

-0.8°C

below the year-round regional average

What the Portugal sea feels like in December

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 December fits in the year

December 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 December 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 December

Sorted by the typical December 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 December mean
1 Fora (Iheus Selvagens) Madeira 21.3°C
2 Porto do Moniz Madeira 20.7°C
3 Porto da Cruz Madeira 20.6°C
4 Campanario Madeira 20.4°C
5 Ponta do Sol Madeira 20.4°C
6 Vila De Porto Santo Madeira 20.4°C
7 Canico Madeira 20.4°C
8 Funchal Madeira 20.4°C
9 Machico Madeira 20.4°C
10 Canical Madeira 20.3°C
11 Faja da Ovelha Continental Portugal 20.3°C
12 Porto Moniz Madeira 20.3°C
13 Sao Vicente Madeira 20.3°C
14 Porto Santo Madeira 20.1°C
15 Vila Baleira Madeira 20.1°C
16 Vila do Porto Açores 19.1°C
17 Santa Maria Island Azores 18.9°C
18 Vila Franca do Campo Azores 18.3°C
19 Ilha do Farol Continental Portugal 18.3°C
20 Ponta Delgada Azores 18.3°C
21 Rosto de Cao Azores 18.3°C
22 Sao Miguel Island Azores 18.2°C
23 Faja de Baixo Azores 18.1°C
24 Rabo de Peixe Azores 18.1°C
25 Horta,Azores Açores 18.0°C
Show 25 more ▸
26 Lajes (Flores) Açores 18.0°C
27 Santa Cruz (Flores) Açores 18.0°C
28 Pico Island Azores 18.0°C
29 Faial Island Azores 17.9°C
30 Flores Island Azores 17.9°C
31 Horta Azores 17.9°C
32 Madalena Azores 17.9°C
33 Sao Roque do Pico Azores 17.9°C
34 Faro Continental Portugal 17.9°C
35 Ilha da Armona Continental Portugal 17.9°C
36 Olhao Continental Portugal 17.9°C
37 Praia de Faro Continental Portugal 17.9°C
38 Cabanas de Tavira Continental Portugal 17.9°C
39 Cacela Velha Continental Portugal 17.9°C
40 Fuseta Continental Portugal 17.9°C
41 Manta Rota Continental Portugal 17.9°C
42 Praia do Barril Continental Portugal 17.9°C
43 Tavira Continental Portugal 17.9°C
44 Sao Jorge Island Azores 17.9°C
45 Castro Marim Continental Portugal 17.9°C
46 Graciosa Island Azores 17.9°C
47 Monte Gordo Continental Portugal 17.9°C
48 Praia Verde Continental Portugal 17.9°C
49 Vila Real de Santo Antonio Continental Portugal 17.9°C
50 Porto de Faro-Olhao Faro 17.8°C

Coldest 10 in Portugal in December

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

# Location December mean
1 Altura Continental Portugal 14.5°C
2 Caminha Continental Portugal 14.5°C
3 Esmoriz Continental Portugal 14.5°C
4 Torreira Continental Portugal 14.5°C
5 Vila do Conde Continental Portugal 14.5°C
6 Afife Continental Portugal 14.5°C
7 Moledo Continental Portugal 14.5°C
8 Vila Praia de Ancora Continental Portugal 14.5°C
9 Esposende Continental Portugal 14.7°C
10 Ofir Continental Portugal 14.7°C

More on this region