Current Sea Water Temperature:
+61.0°F
| Maximum Sea Water Temperature in December: | 63.0°F |
| Minimum Sea Water Temperature in December: | 54.4°F |
| Average water temperature in December: | 58.6°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| December 04 | 61.0°F | November 29 | 60.6°F |
| December 03 | 61.0°F | November 28 | 60.6°F |
| December 02 | 61.2°F | November 27 | 61.6°F |
| December 01 | 61.4°F | November 26 | 62.0°F |
| November 30 | 60.8°F | November 25 | 62.4°F |
When is the Warmest Sea for Porto?
According to our data for the last three years for Porto the highest average sea water temperature was in September, August and July.
Average Water Temperature by Month, °F
Sea Water Temperature in September
The average sea surface temperature in September 2025 for Porto was 62.9°F. The maximum and minimum values were 57.0°F and 67.4°F respectively.
Sea Water Temperature in August
The average sea surface temperature in August 2025 for Porto was 64.7°F. The maximum and minimum values were 60.0°F and 69.4°F respectively.
Sea Water Temperature in July
The average sea surface temperature in July 2025 for Porto was 63.5°F. The maximum and minimum values were 58.6°F and 68.0°F respectively.
Portugal Resorts:
NAME
F°
| Albufeira |  |
+58 |
| Algarve |  |
+60 |
| Cascais |  |
+62 |
| Faro | |
+60 |
| Funchal |  |
+54 |
| Lagos | |
+62 |
| Lisbon | |
+62 |
| Madeira | |
+54 |
| Ponta Delgada | |
+66 |
| Portimao | |
+60 |
| Porto | |
+54 |
| Porto Santo Island | |
+64 |
| Quarteira | |
+58 |
| Sao Miguel | |
+66 |
| Terceira Island | |
+64 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Porto
Local time: 05:20
05 dec, friday
| 0600 |  |
54°F | N 9 mph |
| 0900 | |
56°F | N 12 mph |
| 1200 | |
58°F | NE 9 mph |
| 1500 | |
62°F | NE 12 mph |
| 1800 | |
62°F | NE 14 mph |
| 2100 | |
60°F | NE 13 mph |
06 dec, saturday
| 0000 | |
60°F | NE 15 mph |
| 0300 | |
60°F | NE 16 mph |