World Resorts Portugal Cascais Weather

Cascais 14 Days Forecast

17.03
mon
Day
59°F
N 15 mph
Precip.
100%
Night
54°F
SW 10 mph
Precip.
0%
18.03
tue
Day
59°F
NE 11 mph
Precip.
100%
Night
57°F
N 21 mph
Precip.
100%
19.03
wed
Day
59°F
N 34 mph
Precip.
100%
Night
55°F
NE 24 mph
Precip.
75%
20.03
thu
Day
57°F
E 16 mph
Precip.
100%
Night
55°F
N 19 mph
Precip.
100%
21.03
fri
Day
57°F
NE 22 mph
Precip.
100%
Night
57°F
NE 12 mph
Precip.
100%
22.03
sat
Day
57°F
E 16 mph
Precip.
100%
Night
55°F
NE 19 mph
Precip.
100%
23.03
sun
Day
57°F
E 11 mph
Precip.
100%
Night
55°F
SE 9 mph
Precip.
100%
24.03
mon
Day
57°F
SE 2 mph
Precip.
67%
Night
55°F
SW 8 mph
Precip.
100%
25.03
tue
Day
59°F
NW 6 mph
Precip.
100%
Night
55°F
S 11 mph
Precip.
100%
26.03
wed
Day
61°F
SE 15 mph
Precip.
0%
Night
55°F
SE 12 mph
Precip.
0%
27.03
thu
Day
61°F
SE 12 mph
Precip.
0%
Night
55°F
S 14 mph
Precip.
0%
28.03
fri
Day
61°F
SE 12 mph
Precip.
0%
Night
55°F
SE 18 mph
Precip.
76%
29.03
sat
Day
59°F
SE 19 mph
Precip.
100%
Night
55°F
SE 17 mph
Precip.
100%
30.03
sun
Day
57°F
S 20 mph
Precip.
0%
Night
54°F
S 16 mph
Precip.
75%

Sea water temperature in March, °F

Show year:
2025
2024
2023
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
53
55
57
59
61
63
65
67

The average sea water temperature in March of 2025 was 59.0°F. The highest and lowest sea temperatures during the month were 59.5°F and 58.5°F.

Air temperature in Cascais, °F

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
12
24
36
48
60
72
84
96
60.4
64.0
69.9
73.2
75.5
74.2
69.6
66.9
63.4
60.5
59.7
58.7
56.6
59.8
64.7
66.4
66.3
65.6
63.3
60.0
57.4
55.2
54.8
54.4
Day temperature   
Night temperature

Precipitation total in Cascais, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.4
0.8
1.2
1.7
2.1
2.5
2.9
2.4
2.1
1.7
0.7
0.1
0.1
0.5
1.2
1.7
1.5
1.3
1.6
* Charts above show average data for the last 3 years.

Best time for vacation in Cascais

Sunniest months:
August 27 days
July 26 days
September 23 days
Warmest months:
August 76.8 °F
July 75.5 °F
September 75.1 °F
Warmest sea temp:
September 64.8 °F
October 64.4 °F
August 63.9 °F
Coldest months:
January 59.2 °F
February 59.4 °F
December 61.2 °F
Rainiest months:
November 5 days
October 4 days
December 4 days
Windiest months:
July 13.9 mph
August 13.5 mph
June 13.1 mph

Cascais on a weather map

Leaflet | Tiles © Esri
Places in Portugal:
Name
°F
Albufeira
+57°F
Algarve
+59°F
Cascais
+57°F
Lagos
+57°F
Lisbon
+54°F
Madeira
+61°F
Ponta Delgada
+57°F
Portimao
+57°F
Porto
+48°F
Porto Santo Island
+59°F
Sao Miguel
+57°F
Setubal
+55°F
Terceira Island
+55°F
Faro
+59°F
Funchal
+61°F
all places
24 Hours Forecast
Cascais
Local time: 07:41
March 17, monday
0900
57°F
N
12 mph
1200
59°F
N
15 mph
1500
59°F
NW
19 mph
1800
55°F
W
13 mph
2100
55°F
SW
11 mph
March 18, tuesday
0000
54°F
SW
10 mph
0300
54°F
S
5 mph
0600
54°F
SE
5 mph
Units of measurement: °C / °F