Current Sea Water Temperature:
+59.4°F
| Maximum Sea Water Temperature in January: | 62.8°F |
| Minimum Sea Water Temperature in January: | 56.6°F |
| Average water temperature in January: | 59.7°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| January 09 | 59.4°F | January 04 | 59.4°F |
| January 08 | 59.4°F | January 03 | 59.0°F |
| January 07 | 59.6°F | January 02 | 58.4°F |
| January 06 | 59.6°F | January 01 | 58.2°F |
| January 05 | 59.4°F | December 31 | 58.0°F |
When is the Warmest Sea for Sintra?
According to our data for the last three years for Sintra the highest average sea water temperature was in September, October and August.
Average Water Temperature by Month, °F
Sea Water Temperature in September
The average sea surface temperature in September 2025 for Sintra was 64.0°F. The maximum and minimum values were 61.4°F and 67.8°F respectively.
Sea Water Temperature in October
The average sea surface temperature in October 2025 for Sintra was 64.3°F. The maximum and minimum values were 61.4°F and 67.0°F respectively.
Sea Water Temperature in August
The average sea surface temperature in August 2025 for Sintra was 66.3°F. The maximum and minimum values were 64.4°F and 68.6°F respectively.
Portugal Resorts:
NAME
F°
| Albufeira |  |
+50 |
| Algarve | |
+52 |
| Cascais |  |
+56 |
| Faro | |
+52 |
| Funchal | |
+54 |
| Lagos |  |
+52 |
| Lisbon | |
+52 |
| Madeira | |
+54 |
| Ponta Delgada | |
+64 |
| Portimao | |
+50 |
| Porto | |
+50 |
| Porto Santo Island | |
+64 |
| Quarteira | |
+50 |
| Sao Miguel | |
+64 |
| Terceira Island |  |
+62 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Sintra
Local time: 23:28
10 jan, saturday
| 0000 |  |
54°F | SE 9 mph |
| 0300 | |
54°F | SE 11 mph |
| 0600 | |
52°F | S 7 mph |
| 0900 |  |
52°F | SW 3 mph |
| 1200 | |
56°F | SE 4 mph |
| 1500 | |
56°F | SE 7 mph |
| 1800 |  |
54°F | E 6 mph |
| 2100 | |
54°F | E 6 mph |