World Resorts Portugal Sintra Weather

Sintra sea water temperature

Current sea water temperature:
+67.3°F
Minimum sea water temperature in July: 67.5°F
Maximum sea water temperature in July: 58.6°F
Average sea water temperature in July: 63.6°F

Sea water temperature for the last 10 days:

July 16 67.3°F July 11 63.9°F
July 15 66.6°F July 10 64.6°F
July 14 65.1°F July 9 64.9°F
July 13 65.3°F July 8 66.0°F
July 12 63.9°F July 7 66.7°F

When is the warmest sea in Sintra?

Based on the data about daily sea water temperature for the last three years the warmest sea in Sintra was noticed in September, October and August.

Monthly Sea Temperatures in Sintra, °F

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 62.6°F. The highest and lowest sea temperatures during the month were 66.0°F and 60.3°F.

Sea water temperature in October, °F

Show year:
2025
2024
2023

The average sea water temperature in October of 2025 was 62.9°F. The highest and lowest sea temperatures during the month were 65.3°F and 60.3°F.

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 64.7°F. The highest and lowest sea temperatures during the month were 66.7°F and 63.0°F.

Best time for vacation in Sintra

Sunniest months:
August 27 days
July 26 days
September 23 days
Warmest months:
August 78.5 °F
July 77.7 °F
September 76.6 °F
Warmest sea temp:
September 64.6 °F
October 64.2 °F
August 63.9 °F
Coldest months:
January 58.7 °F
February 59.4 °F
December 60.6 °F
Rainiest months:
March 4 days
November 4 days
January 4 days
Windiest months:
July 12.9 mph
August 12.4 mph
June 12.2 mph

Sintra on a weather map

Sintra
+72°F
E 7 mph
Feels like: +77°F
Precip.: 5%
Places in Portugal:
Name
°F
+81°F
+79°F
+72°F
+81°F
+79°F
+77°F
+73°F
+72°F
+81°F
+72°F
+72°F
+79°F
+79°F
+73°F
+73°F
24 Hours Forecast
Sintra
Local time: 12:55
July 16, thursday
1500
73°F
E
11 mph
1800
72°F
SE
11 mph
2100
68°F
SE
9 mph
July 17, friday
0000
66°F
SE
9 mph
0300
64°F
S
7 mph
0600
64°F
S
6 mph
0900
68°F
S
8 mph
1200
72°F
SE
11 mph
Units of measurement: °C / °F