Measurements:
°C
°F
CURRENT WEATHER
00:05
Cascais
68°F
S 16 mph
Feels like: 68°F
Precip: 14%
World Resorts Portugal Cascais Weather

7 Day Weather Forecast

06.20
sat
DAY
74°F
S 17 mph
precip
6%
NIGHT
68°F
S 15 mph
precip
10%
06.21
sun
DAY
76°F
SE 11 mph
precip
6%
NIGHT
68°F
S 14 mph
precip
12%
06.22
mon
DAY
76°F
S 9 mph
precip
7%
NIGHT
68°F
S 11 mph
precip
12%
06.23
tue
DAY
78°F
N 5 mph
precip
4%
NIGHT
74°F
W 1 mph
precip
14%
06.24
wed
DAY
76°F
NE 6 mph
precip
16%
NIGHT
68°F
W 9 mph
precip
12%
06.25
thu
DAY
72°F
E 7 mph
precip
9%
NIGHT
68°F
NE 4 mph
precip
14%
06.26
fri
DAY
72°F
NE 8 mph
precip
12%
NIGHT
68°F
SE 9 mph
precip
13%

Cascais Sea Water Temperature in June, °F

Select Year: 2026 2025 2024

The average sea surface temperature in June 2026 for Cascais was 16.4°F. The maximum and minimum values were 15.7°F and 17.7°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