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.

Friday
15th May
18

12

6

8
Saturday
16th May
20

13

11

8
Sunday
17th May
19

13

8

7
Monday
18th May
20

13

9

8
Tuesday
19th May
22

13

6

9

5-day weather forecast updated at 04:02 on Friday 15th 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 Friday 15th May 2026

Expect broken clouds in Cascais, Portugal with a maximum temperature of 18°C, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 37 kph from the north.

18
°C maximum temperature
12
°C minimum temperature
broken clouds
6
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
0
no heat & humidity
37
kph wind from N

Cascais weather for Saturday 16th May 2026

Expect scattered clouds in Cascais, Portugal with a maximum temperature of 20°C, maximum UV of 8 (Very High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 33 kph from the north.

20
°C maximum temperature
13
°C minimum temperature
scattered clouds
11
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
0
no heat & humidity
33
kph wind from N

Cascais weather for Sunday 17th May 2026

Expect broken clouds in Cascais, Portugal with a maximum temperature of 19°C, maximum UV of 7 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 28 kph from the north.

19
°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
28
kph wind from N

Cascais weather for Monday 18th May 2026

Expect scattered clouds in Cascais, Portugal with a maximum temperature of 20°C, maximum UV of 8 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the west.

20
°C maximum temperature
13
°C minimum temperature
scattered clouds
9
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
0
no heat & humidity
23
kph wind from W

Cascais weather for Tuesday 19th May 2026

Expect broken clouds in Cascais, Portugal with a maximum temperature of 22°C, maximum UV of 9 (Very High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the north.