Measurements:
°C
°F
CURRENT WEATHER
08:28
Cascais
68°F
SE 12 mph
Feels like: 68°F
Precip: 14%
World Resorts Portugal Cascais Weather

7 Day Weather Forecast

07.10
fri
DAY
70°F
SE 14 mph
precip
6%
NIGHT
66°F
S 16 mph
precip
13%
07.11
sat
DAY
70°F
SE 9 mph
precip
7%
NIGHT
68°F
E 7 mph
precip
13%
07.12
sun
DAY
72°F
N 8 mph
precip
10%
NIGHT
68°F
E 4 mph
precip
14%
07.13
mon
DAY
72°F
NE 6 mph
precip
9%
NIGHT
68°F
SE 8 mph
precip
14%
07.14
tue
DAY
74°F
E 7 mph
precip
8%
NIGHT
70°F
SE 8 mph
precip
10%
07.15
wed
DAY
72°F
E 7 mph
precip
18%
NIGHT
70°F
SE 12 mph
precip
11%
07.16
thu
DAY
74°F
SE 11 mph
precip
5%
NIGHT
68°F
S 14 mph
precip
17%

Cascais Sea Water Temperature in July, °F

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Cascais was 17.7°F. The maximum and minimum values were 15.5°F and 19.2°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