Measurements:
°C
°F
CURRENT WEATHER
05:17
Cascais
58°F
NE 21 mph
Feels like: 54°F
Precip: 100%
World Resorts Portugal Cascais Weather

7 Day Weather Forecast

05.10
sun
DAY
62°F
NE 22 mph
precip
65%
NIGHT
60°F
NE 19 mph
precip
100%
05.11
mon
DAY
64°F
N 12 mph
precip
88%
NIGHT
60°F
N 7 mph
precip
0%
05.12
tue
DAY
64°F
NE 9 mph
precip
77%
NIGHT
60°F
E 3 mph
precip
100%
05.13
wed
DAY
64°F
NE 6 mph
precip
70%
NIGHT
60°F
S 15 mph
precip
0%
05.14
thu
DAY
64°F
S 23 mph
precip
0%
NIGHT
58°F
S 26 mph
precip
0%
05.15
fri
DAY
62°F
S 24 mph
precip
0%
NIGHT
60°F
S 21 mph
precip
0%
05.16
sat
DAY
64°F
S 19 mph
precip
21%
NIGHT
58°F
S 20 mph
precip
0%

Cascais Sea Water Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Cascais was 16.5°F. The maximum and minimum values were 15.7°F and 17.5°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 60.0 °F
February 60.3 °F
March 62.2 °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