18.03
wed
wed
Day
59°F
NW 19 mph
Precip.
100%
100%
Night
55°F
NW 22 mph
Precip.
0%
0%
19.03
thu
thu
Day
55°F
NW 19 mph
Precip.
100%
100%
Night
54°F
W 6 mph
Precip.
100%
100%
20.03
fri
fri
Day
59°F
NW 16 mph
Precip.
100%
100%
Night
55°F
NW 15 mph
Precip.
87%
87%
21.03
sat
sat
Day
59°F
NW 14 mph
Precip.
67%
67%
Night
57°F
W 9 mph
Precip.
0%
0%
22.03
sun
sun
Day
59°F
NW 14 mph
Precip.
0%
0%
Night
59°F
S 4 mph
Precip.
0%
0%
23.03
mon
mon
Day
64°F
S 5 mph
Precip.
0%
0%
Night
61°F
S 8 mph
Precip.
0%
0%
24.03
tue
tue
Day
64°F
W 4 mph
Precip.
0%
0%
Night
59°F
SE 4 mph
Precip.
0%
0%
25.03
wed
wed
Day
64°F
SE 2 mph
Precip.
0%
0%
Night
61°F
S 7 mph
Precip.
0%
0%
26.03
thu
thu
Day
64°F
S 4 mph
Precip.
0%
0%
Night
61°F
S 7 mph
Precip.
0%
0%
27.03
fri
fri
Day
66°F
W 7 mph
Precip.
0%
0%
Night
63°F
W 5 mph
Precip.
0%
0%
28.03
sat
sat
Day
64°F
W 6 mph
Precip.
0%
0%
Night
59°F
S 7 mph
Precip.
0%
0%
29.03
sun
sun
Day
59°F
S 17 mph
Precip.
0%
0%
Night
54°F
S 24 mph
Precip.
0%
0%
30.03
mon
mon
Day
57°F
S 27 mph
Precip.
0%
0%
Night
54°F
S 28 mph
Precip.
0%
0%
31.03
tue
tue
Day
55°F
S 26 mph
Precip.
25%
25%
Night
52°F
S 29 mph
Precip.
0%
0%
Sea water temperature in March, °F
Show year:
2026
2025
2024
The average sea water temperature in March of 2026 was 56.7°F. The highest and lowest sea temperatures during the month were 57.4°F and 56.3°F.
Sea water temperature in April, °F
Show year:
2025
2024
2023
The average sea water temperature in April of 2025 was 60.6°F. The highest and lowest sea temperatures during the month were 61.9°F and 59.4°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: 07:51
March 18, wednesday
0900
55°F
NW
18 mph
18 mph
1200
59°F
NW
19 mph
19 mph
1500
61°F
N
22 mph
22 mph
1800
59°F
NW
22 mph
22 mph
2100
57°F
NW
20 mph
20 mph
March 19, thursday
0000
55°F
NW
22 mph
22 mph
0300
59°F
NW
27 mph
27 mph
0600
54°F
NW
24 mph
24 mph
