Current Sea Water Temperature:
+62.8°F
| Maximum Sea Water Temperature in June: | 69.4°F |
| Minimum Sea Water Temperature in June: | 59.0°F |
| Average water temperature in June: | 64.4°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| June 19 | 62.8°F | June 14 | 63.6°F |
| June 18 | 62.0°F | June 13 | 62.4°F |
| June 17 | 62.0°F | June 12 | 61.6°F |
| June 16 | 62.4°F | June 11 | 60.6°F |
| June 15 | 63.6°F | June 10 | 61.2°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 |  |
+72 |
| Algarve | |
+76 |
| Cascais |  |
+68 |
| Faro | |
+76 |
| Funchal | |
+66 |
| Lagos | |
+66 |
| Lisbon | |
+68 |
| Madeira | |
+66 |
| Ponta Delgada | |
+68 |
| Portimao | |
+68 |
| Porto |  |
+66 |
| Porto Santo Island | |
+72 |
| Quarteira | |
+72 |
| Sao Miguel | |
+68 |
| Setubal | |
+66 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Sintra
Local time: 01:20
20 jun, saturday
| 0300 |  |
66°F | S 11 mph |
| 0600 | |
66°F | S 9 mph |
| 0900 |  |
70°F | S 11 mph |
| 1200 | |
78°F | S 12 mph |
| 1500 |  |
80°F | S 14 mph |
| 1800 | |
76°F | S 17 mph |
| 2100 | |
70°F | S 17 mph |
21 jun, sunday
| 0000 |  |
70°F | S 12 mph |