La Plata climate — normals and trends
La Plata (Argentina) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 16.6 °C and it receives 898 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is January (23.7 °C on average) and the coldest is July (9.9 °C). Rainfall peaks in March.
La Plata averages 4 frost days, 30 hot days (≥ 30 °C) and 89 rainy days per year.
La Plata has warmed by +0.4 °C between 1940 and 2025, or +0.05 °C per decade. This trend is statistically significant.
The hottest day of the period reached 41.4 °C (on 11 January 1957) and the coldest -7.1 °C (on 14 June 1967).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
La PlataBuenos Aires
- coords
- -34.92°, -57.95°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.6°C
Average daily high
21.2°C
Average daily low
12.4°C
Annual rainfall
898mm
Sunshine / day
9.7h
Mean relative humidity
74%
Average peak wind
19.9km/h
Seasonal range
13.8°C
Frost days (< 0 °C)
4 d/yr
Hot days (≥ 30 °C)
30 d/yr
Rainy days (≥ 1 mm)
89 d/yr
Annual snowfall
0.0 cm
Average feels-like high
20.9 °C
Average feels-like low
10.7 °C
Average peak gust
37.5 km/h
Tropical nights (≥ 20 °C)
34 d/yr
Solar radiation
17.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.4 °C
since 1940
+0.1 °C per decade · r² = 0.05 · p = 0.038
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
41.4 °C
11 January 1957
Coldest day
-7.1 °C
14 June 1967
Wettest day
113 mm
27 January 1998
Windiest day
57.3 km/h
16 May 2000
Strongest gust
105.1 km/h
16 May 2000
Hottest feels-like
42.0 °C
27 January 1987
Coldest feels-like
-11.3 °C
14 June 1967
Snowiest day
0.6 cm
8 July 1960
Sunniest day
14.0 h
16 December 2025
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 29.2 °C | +0.4 °C | 54 mm | -31 mm |
| Feb | 28.9 °C | +1.1 °C | 105 mm | +21 mm |
| Mar | 25.7 °C | +0.2 °C | 171 mm | +76 mm |
| Apr | 21.0 °C | -0.6 °C | 68 mm | -12 mm |
| May | 18.7 °C | +0.9 °C | 108 mm | +45 mm |
| Jun | 14.0 °C | -0.6 °C | 25 mm | -29 mm |
| Jul | 14.3 °C | +0.3 °C | 25 mm | -34 mm |
| Aug | 16.2 °C | +0.6 °C | 82 mm | +18 mm |
| Sep | 18.5 °C | +0.8 °C | 58 mm | -15 mm |
| Oct | 22.0 °C | +1.5 °C | 66 mm | -26 mm |
| Nov | 23.8 °C | -0.1 °C | 80 mm | -0 mm |
| Dec | 30.1 °C | +2.9 °C | 33 mm | -37 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of La Plata?
La Plata has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 16.6 °C and it receives 898 mm of precipitation per year.
What is the hottest day ever recorded in La Plata?
The hottest day measured in La Plata between 1940 and 2025 was 11 January 1957, reaching 41.4 °C.
What is the coldest day in La Plata?
The coldest day measured in La Plata between 1940 and 2025 was 14 June 1967, at -7.1 °C.
Does it snow in La Plata?
Almost never: La Plata sees virtually no snow, with about 4 frost days per year.
Has the climate of La Plata warmed?
Yes: La Plata warmed by +0.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in La Plata?
The wettest day measured in La Plata between 1940 and 2025 was 27 January 1998, with 113 mm of rain in 24 hours.
What was the windiest day in La Plata?
The windiest day measured in La Plata between 1940 and 2025 was 16 May 2000, with winds reaching 57.3 km/h.
What is the warmest month in La Plata?
The warmest month in La Plata is January (23.7 °C on average); the coldest is July (9.9 °C).
How much does it rain in La Plata?
La Plata receives on average 898 mm of precipitation per year, spread over about 89 rainy days.
Is it sunny in La Plata?
La Plata gets on average 9.7 hours of sunshine per day, roughly 3,540 hours per year over 1940-2025.
What is the biggest single-day snowfall in La Plata?
The heaviest 24-hour snowfall measured in La Plata between 1940 and 2025 was 8 July 1960, with 0.6 cm.
Are there tropical nights in La Plata?
Yes: La Plata has on average 34 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in La Plata?
In La Plata, between 1940 and 2025, the highest apparent temperature reached 42.0 °C on 27 January 1987, and the lowest was -11.3 °C on 14 June 1967.
Compare La Plata with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around La Plata