Cascais weather live forecast

Today's maximum temperature in Cascais is expected to be 23°C. Select a day from the live weather forecast for Cascais, Portugal for more weather parameters.

Wednesday
9th Sep
23

20

8

7
Thursday
10th Sep
25

19

12

7
Friday
11th Sep
27

19

13

7
Saturday
12th Sep
30

20

12

7
Sunday
13th Sep
31

21

12

7

5-day weather forecast updated at 04:02 on Wednesday 9th September 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 9th September 2026

Expect scattered clouds in Cascais, Portugal with a maximum temperature of 23°C, maximum UV of 7 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 32 kph from the north.

23
°C maximum temperature
20
°C minimum temperature
scattered clouds
8
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
23
°C wind chill
32
kph wind from N

Cascais weather for Thursday 10th September 2026

Expect clear skies in Cascais, Portugal with a maximum temperature of 25°C, maximum UV of 7 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 27 kph from the north.

25
°C maximum temperature
19
°C minimum temperature
clear skies
12
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
27
kph wind from N

Cascais weather for Friday 11th September 2026

Expect clear skies in Cascais, Portugal with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 7 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 25 kph from the north.

27
°C maximum temperature
19
°C minimum temperature
clear skies
13
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
25
kph wind from N

Cascais weather for Saturday 12th September 2026

Expect clear skies in Cascais, Portugal with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the north.

30
°C maximum temperature
20
°C minimum temperature
clear skies
12
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
18
kph wind from N

Cascais weather for Sunday 13th September 2026

Expect clear skies in Cascais, Portugal with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the north.