Cascais weather live forecast

Today's maximum temperature in Cascais is expected to be 25°C. Select a day from the live weather forecast for Cascais, Portugal for more weather parameters.

Wednesday
5th Aug
25

20

9

9
Thursday
6th Aug
26

20

10

9
Friday
7th Aug
27

20

13

8
Saturday
8th Aug
26

20

11

9
Sunday
9th Aug
25

20

8

9

5-day weather forecast updated at 04:02 on Tuesday 4th 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 Wednesday 5th August 2026

Expect broken clouds in Cascais, Portugal with a maximum temperature of 25°C, maximum UV of 9 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 32 kph from the north-west.

25
°C maximum temperature
20
°C minimum temperature
broken clouds
9
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
0
no heat & humidity
32
kph wind from NW

Cascais weather for Thursday 6th August 2026

Expect scattered clouds in Cascais, Portugal with a maximum temperature of 26°C, maximum UV of 9 (Very High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 35 kph from the north.

26
°C maximum temperature
20
°C minimum temperature
scattered clouds
10
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
26
°C wind chill
35
kph wind from N

Cascais weather for Friday 7th August 2026

Expect scattered clouds in Cascais, Portugal with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 27 kph from the north-west.

27
°C maximum temperature
20
°C minimum temperature
scattered clouds
13
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
27
kph wind from NW

Cascais weather for Saturday 8th August 2026

Expect scattered clouds in Cascais, Portugal with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 9 (Very High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the north-west.

26
°C maximum temperature
20
°C minimum temperature
scattered clouds
11
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
21
kph wind from NW

Cascais weather for Sunday 9th August 2026

Expect broken clouds in Cascais, Portugal with a maximum temperature of 25°C, maximum UV of 9 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 29 kph from the north.