World Resorts

Portugal

Cascais Weather

Cascais 14 Days Forecast

21.12
sun

Day

54°F

SE 22 mph

Precip.
100%

Night

52°F

SE 15 mph

Precip.
100%

22.12
mon

Day

55°F

S 16 mph

Precip.
100%

Night

55°F

SE 20 mph

Precip.
100%

23.12
tue

Day

57°F

S 19 mph

Precip.
100%

Night

52°F

S 16 mph

Precip.
0%

24.12
wed

Day

59°F

S 18 mph

Precip.
80%

Night

55°F

SE 22 mph

Precip.
65%

25.12
thu

Day

54°F

S 19 mph

Precip.
69%

Night

52°F

S 7 mph

Precip.
89%

26.12
fri

Day

50°F

W 9 mph

Precip.
0%

Night

46°F

SW 9 mph

Precip.
0%

27.12
sat

Day

50°F

W 11 mph

Precip.
0%

Night

48°F

S 7 mph

Precip.
100%

28.12
sun

Day

52°F

W 26 mph

Precip.
100%

Night

50°F

W 13 mph

Precip.
0%

29.12
mon

Day

54°F

W 12 mph

Precip.
0%

Night

50°F

W 13 mph

Precip.
0%

30.12
tue

Day

54°F

W 11 mph

Precip.
0%

Night

50°F

SW 5 mph

Precip.
0%

31.12
wed

Day

54°F

W 2 mph

Precip.
0%

Night

48°F

W 9 mph

Precip.
0%

01.01
thu

Day

50°F

SW 9 mph

Precip.
0%

Night

46°F

W 9 mph

Precip.
0%

02.01
fri

Day

50°F

NW 14 mph

Precip.
0%

Night

59°F

N 23 mph

Precip.
100%

03.01
sat

Day

61°F

N 26 mph

Precip.
100%

Night

57°F

NE 48 mph

Precip.
100%

sea water
temperature

Cascais

monthly
weather

Cascais

current
weather

Cascais

7 days
forecast

Cascais

January
February
March
April

May
June
July
August

September
October
November
December

Show year:

2025

2024

2023

The average sea water temperature in December of 2025 was 60.3°F. The highest and lowest sea temperatures during the month were 60.6°F and 59.4°F.

Show year:

2025

2024

2023

The average sea water temperature in January of 2025 was 60.1°F. The highest and lowest sea temperatures during the month were 61.0°F and 59.5°F.