Current Sea Water Temperature:
+69.8°F
| Maximum Sea Water Temperature in December: | 74.6°F |
| Minimum Sea Water Temperature in December: | 65.8°F |
| Average water temperature in December: | 69.9°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| December 15 | 69.8°F | December 10 | 71.2°F |
| December 14 | 70.0°F | December 09 | 71.4°F |
| December 13 | 70.4°F | December 08 | 71.6°F |
| December 12 | 70.8°F | December 07 | 71.6°F |
| December 11 | 70.8°F | December 06 | 71.2°F |
When is the Warmest Sea for Porto Santo Island?
According to our data for the last three years for Porto Santo Island the highest average sea water temperature was in September, August and October.
Average Water Temperature by Month, °F
Sea Water Temperature in September
The average sea surface temperature in September 2025 for Porto Santo Island was 76.8°F. The maximum and minimum values were 75.8°F and 77.8°F respectively.
Sea Water Temperature in August
The average sea surface temperature in August 2025 for Porto Santo Island was 76.3°F. The maximum and minimum values were 75.0°F and 77.6°F respectively.
Sea Water Temperature in October
The average sea surface temperature in October 2025 for Porto Santo Island was 75.9°F. The maximum and minimum values were 75.2°F and 76.6°F respectively.
Portugal Resorts:
NAME
F°
| Albufeira |  |
+62 |
| Algarve |  |
+60 |
| Cascais | |
+60 |
| Faro | |
+60 |
| Funchal | |
+60 |
| Lagos | |
+62 |
| Lisbon | |
+58 |
| Madeira | |
+60 |
| Ponta Delgada |  |
+62 |
| Portimao | |
+62 |
| Porto | |
+54 |
| Porto Santo Island | |
+68 |
| Quarteira | |
+62 |
| Sao Miguel | |
+62 |
| Terceira Island |  |
+58 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Porto Santo Island
Local time: 13:33
15 dec, monday
| 1500 |  |
68°F | SE 22 mph |
| 1800 |  |
68°F | SE 27 mph |
| 2100 |  |
68°F | SE 26 mph |
16 dec, tuesday
| 0000 | |
64°F | SE 26 mph |
| 0300 | |
66°F | SE 30 mph |
| 0600 | |
66°F | SE 31 mph |
| 0900 | |
66°F | S 30 mph |
| 1200 |  |
66°F | S 29 mph |