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Coldest sea in Portugal in December

187 coastal locations in Portugal ranked by typical December sea temperature, coldest first. Region-wide average in December: 16.9°C.

Coldest in December

Altura

14.5°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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D
  • 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.

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 coldest Portugal locations in December

Sorted by typical December mean from a decade of daily readings, coldest first. Click any place for the full location page.

# 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
11 Viana do Castelo Continental Portugal 14.7°C
12 Oporto (Porto) Porto 14.7°C
13 Aver-o-Mar Continental Portugal 14.8°C
14 Povoa de Varzim Continental Portugal 14.8°C
15 Canidelo 14.9°C
16 Espinho Continental Portugal 14.9°C
17 Leca da Palmeira Continental Portugal 14.9°C
18 Leixoes Continental Portugal 14.9°C
19 Matosinhos Continental Portugal 14.9°C
20 Porto Continental Portugal 14.9°C
21 Vila Nova de Gaia Continental Portugal 14.9°C
22 Costa Nova Continental Portugal 15.0°C
23 Buarcos Continental Portugal 15.1°C
24 Figueira da Foz Continental Portugal 15.1°C
25 Furadouro Continental Portugal 15.1°C
Show 25 more ▸
26 Pedrogao Continental Portugal 15.1°C
27 Praia da Vieira Continental Portugal 15.1°C
28 Vieira de Leiria Continental Portugal 15.1°C
29 Aveiro Continental Portugal 15.1°C
30 Praia de Mira Continental Portugal 15.1°C
31 Porto de Aveiro Aveiro 15.2°C
32 Caldas da Rainha Continental Portugal 15.5°C
33 Foz do Arelho Continental Portugal 15.5°C
34 Leiria Continental Portugal 15.5°C
35 Obidos Continental Portugal 15.5°C
36 Nazare Continental Portugal 15.5°C
37 Salir do Porto Continental Portugal 15.5°C
38 Sao Martinho do Porto Continental Portugal 15.5°C
39 Alhandra Continental Portugal 15.6°C
40 Amadora Continental Portugal 15.6°C
41 Azenhas do Mar Continental Portugal 15.6°C
42 Cabo da Roca Continental Portugal 15.6°C
43 Ericeira Continental Portugal 15.6°C
44 Moscavide Continental Portugal 15.6°C
45 Povoa de Santa Iria Continental Portugal 15.6°C
46 Praia da Adraga Continental Portugal 15.6°C
47 Sao Joao da Talha Continental Portugal 15.6°C
48 Sintra Continental Portugal 15.6°C
49 Baleal Island Continental Portugal 15.8°C
50 Peniche Continental Portugal 15.8°C

Warmest 10 in Portugal in December

Same data the other way. The warmest spots for the same month.

# 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

More on this region