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Ciudad de la Costa weather in December

Weather in Ciudad de la Costa: December

Average day temperature: 73.3°F
Average night temperature: 67.2°F
Sea water temperature: 72.2°F
Number of sunny days: 20 days
Day length: 14.3 - 14.5 hours
Number of rainy days: 2 days
Precipitation totals: 1.1 in.

Air temperature in December, °F

Show year:
2025
2024
2023

The highest day temperature during December of 2025 was 98°F. At the same time the lowest night temperature was 56°F. Daily and nightly averages during December were 81.3°F and 68.1°F.

Sea water temperature in Ciudad de la Costa in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 74.1°F. The highest and lowest sea temperatures during the month were 80.1°F and 66.7°F.

Sunny, partly cloudy and cloudy days

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

Precipitation total in December, in.

Precipitation total value in Ciudad de la Costa in December is 1.1 in. Other months of the year show relatively similar values.

Wind speed in December, mph

The average wind speed value in December is 14.2 mph It makes December one of the most windy months of the year.

Average sunny hours

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 December is: 10.3.

Best time for vacation in Ciudad de la Costa

Sunniest months:
January 22 days
December 20 days
November 19 days
Warmest months:
February 76.0 °F
January 76.0 °F
December 73.3 °F
Warmest sea temp:
February 75.4 °F
January 74.5 °F
March 74.0 °F
Coldest months:
July 53.4 °F
August 54.7 °F
June 54.8 °F
Rainiest months:
May 3 days
February 3 days
March 3 days
Windiest months:
November 14.4 mph
January 14.4 mph
December 14.2 mph

Ciudad de la Costa on a weather map

Ciudad de la Costa
+73°F
SW 11 mph
Feels like: +77°F
Precip.: 0%
Places in Uruguay:
Name
°F
24 Hours Forecast
Ciudad de la Costa
Local time: 23:44
January 07, wednesday
0000
73°F
SW
11 mph
0300
70°F
S
14 mph
0600
72°F
S
12 mph
0900
81°F
SE
12 mph
1200
79°F
NE
21 mph
1500
77°F
NE
15 mph
1800
72°F
NW
17 mph
2100
68°F
NW
21 mph
Units of measurement: °C / °F