18.07
sat
sat
Day
72°F
SE 12 mph
Precip.
8%
8%
Night
64°F
S 14 mph
Precip.
17%
17%
19.07
sun
sun
Day
72°F
SE 12 mph
Precip.
5%
5%
Night
66°F
SE 11 mph
Precip.
16%
16%
20.07
mon
mon
Day
72°F
SE 12 mph
Precip.
5%
5%
Night
66°F
SE 11 mph
Precip.
15%
15%
21.07
tue
tue
Day
73°F
SE 9 mph
Precip.
4%
4%
Night
66°F
SE 11 mph
Precip.
14%
14%
22.07
wed
wed
Day
73°F
SE 8 mph
Precip.
4%
4%
Night
66°F
SE 9 mph
Precip.
14%
14%
23.07
thu
thu
Day
73°F
SE 9 mph
Precip.
4%
4%
Night
66°F
S 9 mph
Precip.
12%
12%
24.07
fri
fri
Day
75°F
SE 11 mph
Precip.
3%
3%
Night
66°F
SE 11 mph
Precip.
17%
17%
25.07
sat
sat
Day
72°F
S 21 mph
Precip.
5%
5%
Night
64°F
S 24 mph
Precip.
12%
12%
26.07
sun
sun
Day
70°F
S 26 mph
Precip.
4%
4%
Night
66°F
S 24 mph
Precip.
15%
15%
27.07
mon
mon
Day
72°F
S 19 mph
Precip.
6%
6%
Night
66°F
S 13 mph
Precip.
11%
11%
28.07
tue
tue
Day
75°F
E 4 mph
Precip.
4%
4%
Night
73°F
S 3 mph
Precip.
5%
5%
29.07
wed
wed
Day
75°F
N 9 mph
Precip.
4%
4%
Night
68°F
E 2 mph
Precip.
12%
12%
30.07
thu
thu
Day
73°F
NE 7 mph
Precip.
4%
4%
Night
68°F
S 6 mph
Precip.
10%
10%
31.07
fri
fri
Day
77°F
SE 7 mph
Precip.
4%
4%
Night
72°F
SE 9 mph
Precip.
8%
8%
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 65.8°F. The highest and lowest sea temperatures during the month were 68.4°F and 63.9°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.
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: 01:54
July 18, saturday
0300
64°F
S
12 mph
12 mph
0600
64°F
S
11 mph
11 mph
0900
68°F
SE
11 mph
11 mph
1200
72°F
SE
12 mph
12 mph
1500
72°F
SE
14 mph
14 mph
1800
70°F
SE
15 mph
15 mph
2100
66°F
S
14 mph
14 mph
July 19, sunday
0000
64°F
S
14 mph
14 mph
