Average sea water temperature in December:
+57.8°F
| Minimum sea water temperature in December: | 61.7°F |
| Maximum sea water temperature in December: | 54.0°F |
Daily sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 59.0°F. The highest and lowest sea temperatures during the month were 60.3°F and 57.0°F.
Monthly sea water temperature in Porto, °F
Which Portugal resorts have warmest sea in December?
| Place name | December 2025 | December 2024 |
|---|---|---|
| Madeira | 68.9°F | 69.9°F |
| Funchal | 68.9°F | 69.9°F |
| Canico | 68.8°F | 69.7°F |
| Porto Santo Island | 68.2°F | 69.3°F |
| Santa Maria Island | 66.4°F | 66.9°F |
| Faial Island | 64.2°F | 65.6°F |
| Pico Island | 64.1°F | 65.5°F |
| Ponta Delgada | 64.0°F | 65.7°F |
| Sao Miguel | 64.0°F | 65.5°F |
| Sao Jorge | 63.9°F | 65.6°F |
| Flores Island | 63.9°F | 65.6°F |
| Graciosa | 63.5°F | 65.6°F |
| Corvo Island | 63.4°F | 65.0°F |
| Terceira Island | 63.2°F | 65.1°F |
| Algarve | 61.7°F | 64.2°F |
| Faro | 61.7°F | 64.2°F |
| Sagres | 61.4°F | 64.3°F |
| Alvor | 61.3°F | 63.8°F |
| Portimao | 61.3°F | 63.5°F |
| Lagos | 61.3°F | 64.0°F |
Best time for vacation in Porto
Porto on a weather map
Places in Portugal:
Name
°F
24 Hours Forecast
Porto
Local time: 10:47
December 25, thursday
1200
48°F
W
4 mph
4 mph
1500
50°F
S
5 mph
5 mph
1800
50°F
S
7 mph
7 mph
2100
46°F
S
9 mph
9 mph
December 26, friday
0000
45°F
S
8 mph
8 mph
0300
43°F
S
5 mph
5 mph
0600
41°F
SW
4 mph
4 mph
0900
41°F
W
5 mph
5 mph
