Ciudad de la Costa Weather in December
During December, Ciudad de la Costa experiences high daytime temperatures of 26°C (79°F) and cooler nights around 17°C (63°F). As part of the summer season, expect quite a bit of rainfall. Around 81 mm (3.2 in) is typical.
Rainfall in Ciudad de la Costa in December
You can expect rain on around 10 days based on historical patterns, with 81 mm (3.2 in) average for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Ciudad de la Costa in December
December is a perfect month in Ciudad de la Costa, with 26°C (79°F) during the day and 17°C (63°F) at night. The summer season is characteristic of December. Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights cool down to 17°C (63°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Ciudad de la Costa in December
The city usually sees around 285 hours of sunlight, indicating many sunny days — a great month for sightseeing.
Wind Speed in Ciudad de la Costa in December
Average wind conditions reach 6 m/s (12 knots) in December. This creates notably windy weather that is clearly felt and can influence daily activities. Keep in mind this is an average. Some days are less intense, while others can be quite gusty.
Average water temperature in December
The water temperature is 22°C (72°F), which most people find very comfortable. A good month for swimming and water sports.If you're a fan of comfortable temperatures and drier conditions, December is a great time to visit.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Uruguay, check out our Ciudad de la Costa's climate page.
Ciudad de la Costa Temperature in December
Min Temperature
17°C (63°F)
Max Temperature
26°C (79°F)
Water Temperature
22°C (72°F) *
Chance of Rain
34%
Precipitation
81 mm (3.2 in)
Rainy days
10 days
Humidity
70% *
Windspeed
6 m/s (12 knots) *
Sunshine
285 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Ciudad de la Costa typically stay consistent throughout December, with daily highs averaging around 26°C (79°F). Nights are pleasant, with lows typically ranging from 15°C (59°F) to 18°C (64°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Ciudad de la Costa in December
Browse day-by-day weather records for Ciudad de la Costa spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ciudad de la Costa historical weather extremes in December
According to our 49 years of weather records for Ciudad de la Costa, the following extremes were recorded between 1976 and 2025.
- On December 26, 2013, temperatures climbed to 38°C (100°F), marking the warmest December day on record.
- On December 2, 2001, Ciudad de la Costa saw its coldest December day with temperatures maxing out at 16°C (61°F).
- Ciudad de la Costa registered its coldest December night on December 9, 1995, with temperatures dropping to 6°C (43°F).
Best Places in Uruguay in December
Find out more about the weather in Uruguay and which places have the best travel conditions in this month. See all of Uruguay in December →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Ciudad de la Costa in December
Warm temperatures in December make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes. Expect water temperatures of around 22°C (72°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Ciudad de la Costa in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Uruguay, check out our Ciudad de la Costa's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Ciudad de la Costa climate overview or explore weather in Uruguay.
