07.08
fri
fri
Day
77°F
S 12 mph
Precip.
4%
4%
Night
70°F
S 10 mph
Precip.
10%
10%
08.08
sat
sat
Day
75°F
SE 9 mph
Precip.
4%
4%
Night
68°F
SE 9 mph
Precip.
15%
15%
09.08
sun
sun
Day
73°F
SE 9 mph
Precip.
6%
6%
Night
68°F
S 13 mph
Precip.
16%
16%
10.08
mon
mon
Day
73°F
S 15 mph
Precip.
4%
4%
Night
66°F
S 15 mph
Precip.
14%
14%
11.08
tue
tue
Day
73°F
S 13 mph
Precip.
4%
4%
Night
68°F
S 14 mph
Precip.
15%
15%
12.08
wed
wed
Day
75°F
S 13 mph
Precip.
4%
4%
Night
68°F
S 15 mph
Precip.
9%
9%
13.08
thu
thu
Day
77°F
S 12 mph
Precip.
4%
4%
Night
68°F
S 16 mph
Precip.
11%
11%
14.08
fri
fri
Day
77°F
S 12 mph
Precip.
5%
5%
Night
68°F
S 13 mph
Precip.
15%
15%
15.08
sat
sat
Day
75°F
S 11 mph
Precip.
7%
7%
Night
68°F
S 21 mph
Precip.
14%
14%
16.08
sun
sun
Day
72°F
SE 17 mph
Precip.
10%
10%
Night
66°F
S 16 mph
Precip.
11%
11%
17.08
mon
mon
Day
72°F
SE 14 mph
Precip.
8%
8%
Night
68°F
S 9 mph
Precip.
17%
17%
18.08
tue
tue
Day
73°F
S 19 mph
Precip.
4%
4%
Night
70°F
S 15 mph
Precip.
21%
21%
19.08
wed
wed
Day
73°F
S 19 mph
Precip.
4%
4%
Night
66°F
S 21 mph
Precip.
11%
11%
20.08
thu
thu
Day
75°F
S 17 mph
Precip.
4%
4%
Night
70°F
S 16 mph
Precip.
8%
8%
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.
Air temperature in Sintra, °F
Precipitation total in Sintra, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Sintra
Sintra on a weather map
Places in Portugal:
Name
°F
24 Hours Forecast
Sintra
Local time: 05:00
August 07, friday
0600
66°F
S
9 mph
9 mph
0900
70°F
S
11 mph
11 mph
1200
77°F
S
12 mph
12 mph
1500
77°F
SE
14 mph
14 mph
1800
75°F
SE
15 mph
15 mph
2100
70°F
S
12 mph
12 mph
August 08, saturday
0000
70°F
S
10 mph
10 mph
0300
68°F
S
8 mph
8 mph
