Measurements:
°C
°F
Sintra
66°F
NW 17 mph
Feels like: 66°F
Precip: 22%
World Resorts Portugal Sintra Weather

Sintra Sea Water Temperature

Current Sea Water Temperature:
+63.8°F
Maximum Sea Water Temperature in November: 69.0°F
Minimum Sea Water Temperature in November: 58.6°F
Average water temperature in November: 63.9°F

Sea Water Temperature for the Last 10 Days:

November 07 63.8°F November 02 64.8°F
November 06 63.6°F November 01 64.8°F
November 05 64.6°F October 31 65.2°F
November 04 64.8°F October 30 64.8°F
November 03 65.2°F October 29 64.4°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

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Sintra was 65.6°F. The maximum and minimum values were 63.2°F and 67.8°F respectively.

Sea Water Temperature in October

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Sintra was 65.7°F. The maximum and minimum values were 63.4°F and 68.2°F respectively.

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Sintra was 67.9°F. The maximum and minimum values were 65.8°F and 69.8°F respectively.

Best Time to Visit Sintra
The most sunny months:
August 27 days
July 26 days
September 23 days
The most warm months:
August 81.2 °F
July 80.6 °F
September 79.1 °F
Warmest sea temperature:
September 66.2 °F
October 65.7 °F
August 65.6 °F
The most cold months:
January 59.7 °F
February 60.4 °F
December 61.8 °F
The most rainy months:
March 4 days
November 4 days
January 4 days
The most windy months:
July 12 mph
August 12 mph
June 12 mph

Sintra on the Weather Map

Portugal Resorts:
NAME
F°
Albufeira +68
Algarve +70
Cascais +66
Faro +70
Funchal +64
Lagos +68
Lisbon +66
Madeira +64
Ponta Delgada +64
Portimao +68
Porto +62
Porto Santo Island +74
Quarteira +68
Sao Miguel +64
Setubal +66
24 Hours Weather Forecast
Sintra
Local time: 06:41
08 nov, sunday
0900 68°F
NW
19 mph
1200 66°F
NW
24 mph
1500 66°F
NW
24 mph
1800 66°F
N
25 mph
2100 68°F
N
24 mph
09 nov, monday
0000 68°F
N
22 mph
0300 66°F
N
19 mph
0600 64°F
NE
17 mph