Measurements:
°C
°F
CURRENT WEATHER
18:16
Cascais
58°F
SE 23 mph
Feels like: 54°F
Precip: 100%
World Resorts Portugal Cascais Weather

14 Day Weather Forecast

12.15
mon
DAY
62°F
NE 14 mph
precip
100%
NIGHT
54°F
SE 26 mph
precip
100%
12.16
tue
DAY
56°F
S 37 mph
precip
100%
NIGHT
56°F
S 24 mph
precip
80%
12.17
wed
DAY
58°F
SW 11 mph
precip
0%
NIGHT
56°F
SW 5 mph
precip
0%
12.18
thu
DAY
58°F
N 6 mph
precip
0%
NIGHT
60°F
N 9 mph
precip
100%
12.19
fri
DAY
58°F
S 22 mph
precip
100%
NIGHT
56°F
S 21 mph
precip
82%
12.20
sat
DAY
56°F
S 21 mph
precip
0%
NIGHT
54°F
S 13 mph
precip
0%
12.21
sun
DAY
60°F
SE 17 mph
precip
100%
NIGHT
56°F
E 10 mph
precip
100%
12.22
mon
DAY
60°F
E 9 mph
precip
100%
NIGHT
60°F
NE 21 mph
precip
100%
12.23
tue
DAY
62°F
E 20 mph
precip
80%
NIGHT
56°F
SE 13 mph
precip
100%
12.24
wed
DAY
56°F
SE 15 mph
precip
100%
NIGHT
54°F
SE 18 mph
precip
100%
12.25
thu
DAY
60°F
S 24 mph
precip
84%
NIGHT
56°F
S 19 mph
precip
100%
12.26
fri
DAY
58°F
SW 9 mph
precip
0%
NIGHT
54°F
SW 6 mph
precip
0%
12.27
sat
DAY
58°F
SW 6 mph
precip
0%
NIGHT
54°F
S 6 mph
precip
0%
12.28
sun
DAY
54°F
W 6 mph
precip
0%
NIGHT
54°F
W 12 mph
precip
78%

Cascais Sea Water Temperature in December, °F

Select Year: 2025 2024 2023

The average sea surface temperature in December 2025 for Cascais was 61.7°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 +60
Algarve +62
Cascais +58
Faro +62
Funchal +56
Lagos +60
Lisbon +58
Madeira +56
Ponta Delgada +60
Portimao +60
Porto +54
Porto Santo Island +68
Quarteira +60
Sao Miguel +60
Terceira Island +58
all resorts
24 Hours Weather Forecast
Cascais
Local time: 18:16
15 dec, monday
2100 56°F
SE
22 mph
16 dec, tuesday
0000 54°F
SE
26 mph
0300 54°F
SE
27 mph
0600 54°F
SE
37 mph
0900 54°F
SE
39 mph
1200 56°F
S
37 mph
1500 56°F
S
40 mph
1800 56°F
S
35 mph