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Cascais weather in January

Weather in Cascais: January

Average day temperature: 59.2°F
Average night temperature: 54.6°F
Sea water temperature: 58.8°F
Number of sunny days: 14 days
Day length: 9.5 - 10.2 hours
Number of rainy days: 3 days
Precipitation totals: 1.7 in.

Air temperature in January, °F

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2025
2024
2023
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Day temperature   
Night temperature

The highest day temperature during January of 2025 was 62°F. At the same time the lowest night temperature was 47°F. Daily and nightly averages during January were 59.0°F and 56.1°F.

Sea water temperature in Cascais in January, °F

Show year:
2025
2024
2023
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3
5
7
9
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13
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19
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27
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52
54
56
58
60
62
64
66

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.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
44%
22%
34%

Mostly all days in January are sunny but cloudy days are also possible.

Precipitation total in January, 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
1.2
1.7
1.6
1.3
2.4
2.1
1.7
1.2
1.7
1.6
1.3
1.6

Precipitation total value in Cascais in January is 1.6 in. Other months of the year show relatively similar values.

Wind speed in January, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
2.4
4.9
7.3
9.7
12.2
14.6
17.1
12.2
12.2
11.4
11.8
14.2
13.9
13.6
13.0
12.5
13.3
12.3
12.2
12.2
11.4
11.8
14.2
13.9
13.6
13.0
12.5
13.3
12.3
12.4

The average wind speed value in January is 12.4 mph

Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
2.2
4.3
6.5
8.7
10.8
13.0
15.2
17.3
5.5
6.0
6.9
9.0
11.8
12.6
10.6
10.3
8.4
6.5
6.2
5.5
6.0
6.9
9.0
11.8
12.6
10.6
10.3
8.4
6.5
6.2
5.7

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in January is: 5.7.

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
March 61.1 °F
Rainiest months:
November 5 days
March 4 days
December 4 days
Windiest months:
July 13.9 mph
August 13.5 mph
June 13.1 mph

Cascais on a weather map

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Places in Portugal:
Name
°F
+66°F
+66°F
+64°F
+66°F
+63°F
+63°F
+68°F
+63°F
+64°F
+64°F
+63°F
+61°F
+66°F
+63°F
24 Hours Forecast
Cascais
Local time: 07:39
April 24, thursday
0900
64°F
SW
6 mph
1200
68°F
S
6 mph
1500
68°F
S
10 mph
1800
64°F
S
14 mph
2100
61°F
S
14 mph
April 25, friday
0000
59°F
S
14 mph
0300
59°F
S
12 mph
0600
57°F
S
16 mph
Units of measurement: °C / °F