La Plata Weather in December
La Plata in December averages 27°C (81°F) during the day and 18°C (64°F) at night. This is part of the summer season, and quite a bit of rainfall is expected this month.
Rainfall in La Plata in December
Typically, you can expect about 8 days of rain this month, with 81 mm (3.2 in) on average. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in La Plata in December
December is a good time to be in La Plata. Days are perfect, reaching 27°C (81°F), with nights around 18°C (64°F). During December, the summer season is in full swing. Overall, the month follows a fairly predictable daily temperature pattern. With overnight lows of 18°C (64°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in La Plata in December
Expect a lot of sunshine this month, with about 273 hours of sun. These sunny conditions add to the overall experience.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, March, April, November and December typically offer the best weather for La Plata.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Argentina, check out our La Plata's climate page.
La Plata Temperature in December
Min Temperature
18°C (64°F)
Max Temperature
27°C (81°F)
Chance of Rain
28%
Precipitation
81 mm (3.2 in)
Rainy days
8 days
Humidity
63% *
Sunshine
273 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in La Plata typically stay consistent throughout December, with daily highs averaging around 27°C (81°F). Nights are pleasant, with lows typically ranging from 15°C (59°F) to 19°C (66°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 La Plata in December
Browse day-by-day weather records for La Plata spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
La Plata historical weather extremes in December
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in La Plata.
- On December 31, 2025, temperatures climbed to 38°C (100°F), marking the warmest December day on record.
- The lowest daytime temperature in December was 17°C (63°F), recorded on December 2, 2001.
- The lowest overnight temperature recorded in December was 6°C (43°F) (December 7, 2005).
Best Places in Argentina in December
Find out more about the weather in Argentina and which places have the best travel conditions in this month. See all of Argentina in December →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in La Plata in December
Warm but pleasant conditions in La Plata in December. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in La Plata 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 Argentina, check out our La Plata's climate page.
Temperature Rainfall Sunshine Humidity
See the full La Plata climate overview or explore weather in Argentina.
