17.03
mon
mon
Day

59°F
N 14 mph
Precip.
100%
100%
Night

55°F
S 7 mph
Precip.
87%
87%
18.03
tue
tue
Day

59°F
NE 13 mph
Precip.
71%
71%
Night

57°F
N 22 mph
Precip.
100%
100%
19.03
wed
wed
Day

57°F
N 30 mph
Precip.
100%
100%
Night

52°F
NE 52 mph
Precip.
100%
100%
20.03
thu
thu
Day

57°F
NE 19 mph
Precip.
100%
100%
Night

55°F
NE 11 mph
Precip.
0%
0%
21.03
fri
fri
Day

55°F
SE 9 mph
Precip.
100%
100%
Night

57°F
E 14 mph
Precip.
84%
84%
22.03
sat
sat
Day

61°F
N 12 mph
Precip.
100%
100%
Night

57°F
NW 15 mph
Precip.
100%
100%
23.03
sun
sun
Day

59°F
N 15 mph
Precip.
100%
100%
Night

57°F
N 13 mph
Precip.
100%
100%
24.03
mon
mon
Day

61°F
NW 13 mph
Precip.
100%
100%
Night

57°F
NW 4 mph
Precip.
100%
100%
25.03
tue
tue
Day

63°F
NW 8 mph
Precip.
0%
0%
Night

55°F
N 2 mph
Precip.
100%
100%
26.03
wed
wed
Day

61°F
N 11 mph
Precip.
100%
100%
Night

57°F
SE 2 mph
Precip.
0%
0%
27.03
thu
thu
Day

59°F
E 11 mph
Precip.
0%
0%
Night

55°F
SE 11 mph
Precip.
100%
100%
28.03
fri
fri
Day

54°F
SE 19 mph
Precip.
69%
69%
Night

50°F
SE 19 mph
Precip.
100%
100%
29.03
sat
sat
Day

54°F
SE 22 mph
Precip.
100%
100%
Night

52°F
S 17 mph
Precip.
0%
0%
30.03
sun
sun
Day

57°F
S 19 mph
Precip.
87%
87%
Night

55°F
S 12 mph
Precip.
0%
0%
Sea water temperature in March, °F
Show year:
2025
2024
2023
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
53
55
57
59
61
63
65
67
The average sea water temperature in March of 2025 was 59.0°F. The highest and lowest sea temperatures during the month were 59.5°F and 58.5°F.
Air temperature in Cascais, °F
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
12
24
36
48
60
72
84
96
60.4
64.0
69.9
73.2
75.5
74.2
69.6
66.9
63.4
60.5
59.7
58.7
56.6
59.8
64.7
66.4
66.3
65.6
63.3
60.0
57.4
55.2
54.8
54.4
Day temperature | Night temperature |
Precipitation total in Cascais, in.
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.4
0.8
1.2
1.7
2.1
2.5
2.9
2.4
2.1
1.7
0.7
0.1
0.1
0.5
1.2
1.7
1.5
1.3
1.6
* Charts above show average data for the last 3 years.
Best time for vacation in Cascais
Cascais on a weather map
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Places in Portugal:
Name
°F
24 Hours Forecast
Cascais
Local time: 09:31
March 17, monday
1200

59°F
N
14 mph
14 mph
1500

59°F
NW
12 mph
12 mph
1800

55°F
NW
9 mph
9 mph
2100

55°F
SW
9 mph
9 mph
March 18, tuesday
0000

55°F
S
7 mph
7 mph
0300

54°F
SE
7 mph
7 mph
0600

55°F
SE
7 mph
7 mph
0900

57°F
E
7 mph
7 mph