Cascais weather live forecast

Today's maximum temperature in Cascais is expected to be 75°F. Select a day from the live weather forecast for Cascais, Portugal for more weather parameters.

Monday
3rd Aug
75

68

5

7
Tuesday
4th Aug
77

70

7

9
Wednesday
5th Aug
79

68

10

9
Thursday
6th Aug
79

66

11

9
Friday
7th Aug
79

68

10

9

5-day weather forecast updated at 04:02 on Monday 3rd August 2026 GMT

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The 5-day weather forecast for Portugal (Cascais) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Cascais weather forecast by day

Below are the detailed weather forecasts for Cascais for the next 5 days.

Cascais weather for Monday 3rd August 2026

Expect broken clouds in Cascais, Portugal with a maximum temperature of 75°F, maximum UV of 7 (High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 9 mph from the south-west.

75
°F maximum temperature
68
°F minimum temperature
broken clouds
5
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
75
°F wind chill
9
mph wind from SW

Cascais weather for Tuesday 4th August 2026

Expect broken clouds in Cascais, Portugal with a maximum temperature of 77°F, maximum UV of 9 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 12 mph from the north-west.

77
°F maximum temperature
70
°F minimum temperature
broken clouds
7
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
0
no heat & humidity
12
mph wind from NW

Cascais weather for Wednesday 5th August 2026

Expect scattered clouds in Cascais, Portugal with a maximum temperature of 79°F, maximum UV of 9 (Very High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 18 mph from the north-west.

79
°F maximum temperature
68
°F minimum temperature
scattered clouds
10
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
79
°F wind chill
18
mph wind from NW

Cascais weather for Thursday 6th August 2026

Expect scattered clouds in Cascais, Portugal with a maximum temperature of 79°F, maximum UV of 9 (Very High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 21 mph from the north.

79
°F maximum temperature
66
°F minimum temperature
scattered clouds
11
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
79
°F wind chill
21
mph wind from N

Cascais weather for Friday 7th August 2026

Expect scattered clouds in Cascais, Portugal with a maximum temperature of 79°F, low levels of heat & humidity, maximum UV of 9 (Very High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 19 mph from the north.