Cascais weather live forecast

Today's maximum temperature in Cascais is expected to be 18°C. Select a day from the live weather forecast for Cascais, Portugal for more weather parameters.

Monday
4th May
18

11

8

7
Tuesday
5th May
17

12

8

7
Wednesday
6th May
18

13

8

7
Thursday
7th May
18

12

3

7
Friday
8th May
18

12

4

7

5-day weather forecast updated at 04:02 on Monday 4th May 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 4th May 2026

Expect sunshine and showers in Cascais, Portugal with a maximum temperature of 18°C, maximum UV of 7 (High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 11% chance of some rain and a moderate breeze of 25 kph from the north-west.

18
°C maximum temperature
11
°C minimum temperature
sunshine and showers
8
hours of sunshine
7
UV index (High)
11
% chance of some rain
<2
mm of rainfall expected
18
°C wind chill
25
kph wind from NW

Cascais weather for Tuesday 5th May 2026

Expect broken clouds in Cascais, Portugal with a maximum temperature of 17°C, maximum UV of 7 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 27 kph from the north.

17
°C maximum temperature
12
°C minimum temperature
broken clouds
8
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
27
kph wind from N

Cascais weather for Wednesday 6th May 2026

Expect broken clouds in Cascais, Portugal with a maximum temperature of 18°C, maximum UV of 7 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 29 kph from the north.

18
°C maximum temperature
13
°C minimum temperature
broken clouds
8
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
29
kph wind from N

Cascais weather for Thursday 7th May 2026

Expect broken clouds in Cascais, Portugal with a maximum temperature of 18°C, maximum UV of 7 (High) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the north.

18
°C maximum temperature
12
°C minimum temperature
broken clouds
3
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
18
°C wind chill
23
kph wind from N

Cascais weather for Friday 8th May 2026

Expect isolated thunderstorms in Cascais, Portugal with a maximum temperature of 18°C, maximum UV of 7 (High) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 60% chance of some rain and a moderate breeze of 26 kph from the south.