Measurements:
°C
°F
CURRENT WEATHER
21:49
Cascais
56°F
SW 4 mph
Feels like: 54°F
Precip: 0%
World Resorts Portugal Cascais Weather

14 Day Weather Forecast

12.17
wed
DAY
60°F
S 13 mph
precip
0%
NIGHT
54°F
W 3 mph
precip
0%
12.18
thu
DAY
60°F
N 14 mph
precip
0%
NIGHT
60°F
N 15 mph
precip
100%
12.19
fri
DAY
58°F
S 22 mph
precip
87%
NIGHT
56°F
S 16 mph
precip
0%
12.20
sat
DAY
58°F
E 11 mph
precip
100%
NIGHT
58°F
E 20 mph
precip
100%
12.21
sun
DAY
54°F
SE 14 mph
precip
72%
NIGHT
56°F
E 20 mph
precip
100%
12.22
mon
DAY
56°F
SE 30 mph
precip
100%
NIGHT
56°F
S 26 mph
precip
100%
12.23
tue
DAY
60°F
S 19 mph
precip
68%
NIGHT
56°F
SE 15 mph
precip
60%
12.24
wed
DAY
58°F
SE 17 mph
precip
100%
NIGHT
52°F
S 9 mph
precip
100%
12.25
thu
DAY
54°F
S 15 mph
precip
0%
NIGHT
56°F
S 19 mph
precip
100%
12.26
fri
DAY
56°F
S 21 mph
precip
0%
NIGHT
54°F
S 24 mph
precip
100%
12.27
sat
DAY
52°F
S 15 mph
precip
0%
NIGHT
46°F
S 11 mph
precip
0%
12.28
sun
DAY
52°F
S 14 mph
precip
0%
NIGHT
46°F
W 8 mph
precip
0%
12.29
mon
DAY
46°F
W 16 mph
precip
0%
NIGHT
44°F
SW 12 mph
precip
0%
12.30
tue
DAY
46°F
W 15 mph
precip
0%
NIGHT
46°F
W 12 mph
precip
0%

Cascais Sea Water Temperature in December, °F

Select Year: 2025 2024 2023

The average sea surface temperature in December 2025 for Cascais was 61.6°F. The maximum and minimum values were 61.4°F and 61.8°F respectively.

Cascais on the Weather Map

Best Time to Visit Cascais
The most sunny months:
August 27 days
July 26 days
September 23 days
The most warm months:
August 79.5 °F
July 78.1 °F
September 77.6 °F
Warmest sea temperature:
September 66.3 °F
October 65.9 °F
August 65.5 °F
The most cold months:
January 60.2 °F
February 60.4 °F
March 62.3 °F
The most rainy months:
November 5 days
March 4 days
December 4 days
The most windy months:
July 14 mph
August 13 mph
June 13 mph
more details
Portugal Resorts:
NAME
F°
Albufeira +54
Algarve +56
Cascais +56
Faro +56
Funchal +60
Lagos +56
Lisbon +54
Madeira +60
Ponta Delgada +66
Portimao +54
Porto +52
Porto Santo Island +68
Quarteira +54
Sao Miguel +66
Terceira Island +64
all resorts
24 Hours Weather Forecast
Cascais
Local time: 21:49
18 dec, thursday
0000 54°F
W
3 mph
0300 54°F
NW
6 mph
0600 54°F
NW
5 mph
0900 56°F
NW
9 mph
1200 60°F
N
14 mph
1500 62°F
N
16 mph
1800 60°F
N
17 mph
2100 62°F
N
17 mph