Measurements:
°C
°F
CURRENT WEATHER
16:43
Cascais
74°F
SE 8 mph
Feels like: 74°F
Precip: 9%
World Resorts Portugal Cascais Weather

14 Day Weather Forecast

08.19
wed
DAY
74°F
N 7 mph
precip
9%
NIGHT
70°F
S 7 mph
precip
13%
08.20
thu
DAY
72°F
SE 7 mph
precip
24%
NIGHT
70°F
S 22 mph
precip
9%
08.21
fri
DAY
70°F
S 19 mph
precip
21%
NIGHT
68°F
S 20 mph
precip
13%
08.22
sat
DAY
70°F
S 20 mph
precip
7%
NIGHT
68°F
S 25 mph
precip
21%
08.23
sun
DAY
70°F
SE 16 mph
precip
23%
NIGHT
68°F
SE 27 mph
precip
12%
08.24
mon
DAY
70°F
S 22 mph
precip
7%
NIGHT
68°F
SE 14 mph
precip
18%
08.25
tue
DAY
70°F
E 9 mph
precip
9%
NIGHT
70°F
NE 10 mph
precip
63%
08.26
wed
DAY
72°F
E 9 mph
precip
7%
NIGHT
70°F
E 15 mph
precip
14%
08.27
thu
DAY
72°F
SE 11 mph
precip
7%
NIGHT
70°F
S 17 mph
precip
10%
08.28
fri
DAY
70°F
S 20 mph
precip
8%
NIGHT
68°F
S 19 mph
precip
10%
08.29
sat
DAY
70°F
S 13 mph
precip
12%
NIGHT
70°F
S 16 mph
precip
17%
08.30
sun
DAY
72°F
S 14 mph
precip
9%
NIGHT
68°F
S 14 mph
precip
22%
08.31
mon
DAY
72°F
NE 4 mph
precip
9%
NIGHT
70°F
NW 11 mph
precip
12%
09.01
tue
DAY
72°F
NE 12 mph
precip
8%
NIGHT
70°F
NW 20 mph
precip
11%

Cascais Sea Water Temperature in August, °F

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Cascais was 66.9°F. The maximum and minimum values were 65.2°F and 68.2°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 77.9 °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
Portugal Resorts:
NAME
F°
Albufeira +74
Algarve +74
Cascais +74
Ericeira +78
Faro +74
Funchal +76
Lagos +74
Lisbon +82
Madeira +76
Ponta Delgada +80
Portimao +80
Porto +80
Quarteira +74
Sao Miguel +80
Setubal +82
all resorts
24 Hours Weather Forecast
Cascais
Local time: 16:43
19 aug, wednesday
1800 74°F
SE
8 mph
2100 72°F
S
6 mph
20 aug, thursday
0000 70°F
S
7 mph
0300 70°F
SE
3 mph
0600 70°F
SE
4 mph
0900 70°F
S
3 mph
1200 72°F
SE
7 mph
1500 72°F
SE
13 mph