Measurements:
°C
°F
CURRENT WEATHER
16:48
Sintra
72°F
SE 8 mph
Feels like: 72°F
Precip: 9%
World Resorts Portugal Sintra Weather

7 Day Weather Forecast

08.19
wed
DAY
72°F
N 7 mph
precip
9%
NIGHT
70°F
S 7 mph
precip
13%
08.20
thu
DAY
70°F
SE 7 mph
precip
24%
NIGHT
68°F
S 22 mph
precip
9%
08.21
fri
DAY
68°F
S 19 mph
precip
21%
NIGHT
68°F
S 20 mph
precip
13%
08.22
sat
DAY
68°F
S 20 mph
precip
7%
NIGHT
66°F
S 25 mph
precip
21%
08.23
sun
DAY
68°F
SE 16 mph
precip
23%
NIGHT
66°F
SE 27 mph
precip
9%
08.24
mon
DAY
68°F
S 22 mph
precip
7%
NIGHT
66°F
SE 14 mph
precip
18%
08.25
tue
DAY
70°F
E 9 mph
precip
9%
NIGHT
70°F
NE 10 mph
precip
63%

Sintra Sea Water Temperature in August, °F

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Sintra was 18.7°F. The maximum and minimum values were 17.9°F and 19.4°F respectively.

Sintra on the Weather Map

Best Time to Visit Sintra
The most sunny months:
August 27 days
July 26 days
September 23 days
The most warm months:
August 81.7 °F
July 80.6 °F
September 79.6 °F
Warmest sea temperature:
September 66.2 °F
October 65.7 °F
August 65.4 °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
more details