27.04
mon
mon
Day
68°F
S 7 mph
Precip.
0%
0%
Night
61°F
S 12 mph
Precip.
0%
0%
28.04
tue
tue
Day
66°F
SE 8 mph
Precip.
0%
0%
Night
61°F
SE 7 mph
Precip.
66%
66%
29.04
wed
wed
Day
63°F
N 9 mph
Precip.
63%
63%
Night
61°F
NE 6 mph
Precip.
62%
62%
30.04
thu
thu
Day
64°F
N 8 mph
Precip.
0%
0%
Night
61°F
SE 4 mph
Precip.
0%
0%
01.05
fri
fri
Day
64°F
E 5 mph
Precip.
0%
0%
Night
59°F
S 8 mph
Precip.
0%
0%
02.05
sat
sat
Day
64°F
SE 7 mph
Precip.
0%
0%
Night
61°F
NW 9 mph
Precip.
0%
0%
03.05
sun
sun
Day
64°F
SE 5 mph
Precip.
0%
0%
Night
61°F
S 7 mph
Precip.
0%
0%
Sea water temperature in April, °F
Show year:
2026
2025
2024
The average sea water temperature in April of 2026 was 59.2°F. The highest and lowest sea temperatures during the month were 61.5°F and 57.7°F.
Sea water temperature in May, °F
Show year:
2025
2024
2023
The average sea water temperature in May of 2025 was 61.8°F. The highest and lowest sea temperatures during the month were 63.5°F and 60.3°F.
Air temperature in Cascais, °F
Precipitation total in Cascais, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Cascais
Cascais on a weather map
Places in Portugal:
Name
°F
24 Hours Forecast
Cascais
Local time: 03:14
April 27, monday
0600
61°F
S
9 mph
9 mph
0900
64°F
S
8 mph
8 mph
1200
68°F
S
7 mph
7 mph
1500
68°F
SE
10 mph
10 mph
1800
66°F
SE
12 mph
12 mph
2100
63°F
S
14 mph
14 mph
April 28, tuesday
0000
61°F
S
12 mph
12 mph
0300
61°F
S
9 mph
9 mph
