Villa Mercedes climate — normals and trends
Villa Mercedes (Argentina) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 16.7 °C and it receives 744 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 (24.0 °C on average) and the coldest is July (9.1 °C). Rainfall peaks in November.
Villa Mercedes averages 8 frost days, 62 hot days (≥ 30 °C) and 98 rainy days per year.
Villa Mercedes has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.
The hottest day of the period reached 42.4 °C (on 28 December 1971) and the coldest -11.2 °C (on 13 July 2000).
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
Villa MercedesSan Luis
- coords
- -33.68°, -65.46°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.7°C
Average daily high
23.1°C
Average daily low
11.4°C
Annual rainfall
744mm
Sunshine / day
10.1h
Mean relative humidity
65%
Average peak wind
18.3km/h
Seasonal range
14.9°C
Frost days (< 0 °C)
8 d/yr
Hot days (≥ 30 °C)
62 d/yr
Rainy days (≥ 1 mm)
98 d/yr
Annual snowfall
1.5 cm
Average feels-like high
22.3 °C
Average feels-like low
9.4 °C
Average peak gust
33.5 km/h
Tropical nights (≥ 20 °C)
23 d/yr
Solar radiation
17.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.1 °C
since 1940
+0.1 °C per decade · r² = 0.25 · p = < 0.001
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
42.4 °C
28 December 1971
Coldest day
-11.2 °C
13 July 2000
Wettest day
106 mm
30 March 2007
Windiest day
56.2 km/h
1 November 1999
Strongest gust
91.8 km/h
1 November 1999
Hottest feels-like
42.8 °C
10 February 2025
Coldest feels-like
-15.8 °C
13 July 2000
Snowiest day
16.0 cm
28 July 1958
Sunniest day
14.2 h
2 January 1945
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 | 32.9 °C | +2.8 °C | 38 mm | -56 mm |
| Feb | 32.6 °C | +3.6 °C | 60 mm | -24 mm |
| Mar | 25.8 °C | -0.5 °C | 141 mm | +48 mm |
| Apr | 22.2 °C | -0.4 °C | 14 mm | -45 mm |
| May | 22.0 °C | +2.9 °C | 18 mm | -15 mm |
| Jun | 17.6 °C | +1.6 °C | 4 mm | -13 mm |
| Jul | 17.3 °C | +1.5 °C | 25 mm | +6 mm |
| Aug | 19.6 °C | +1.2 °C | 56 mm | +34 mm |
| Sep | 23.3 °C | +2.5 °C | 48 mm | +0 mm |
| Oct | 26.9 °C | +3.6 °C | 23 mm | -66 mm |
| Nov | 28.1 °C | +1.7 °C | 98 mm | +3 mm |
| Dec | 31.8 °C | +2.6 °C | 18 mm | -74 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 Villa Mercedes?
Villa Mercedes has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 16.7 °C and it receives 744 mm of precipitation per year.
What is the hottest day ever recorded in Villa Mercedes?
The hottest day measured in Villa Mercedes between 1940 and 2025 was 28 December 1971, reaching 42.4 °C.
What is the coldest day in Villa Mercedes?
The coldest day measured in Villa Mercedes between 1940 and 2025 was 13 July 2000, at -11.2 °C.
Does it snow in Villa Mercedes?
Yes. Villa Mercedes gets on average 1.5 cm of snow per year and has around 8 frost days.
Has the climate of Villa Mercedes warmed?
Yes: Villa Mercedes warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Villa Mercedes?
The wettest day measured in Villa Mercedes between 1940 and 2025 was 30 March 2007, with 106 mm of rain in 24 hours.
What was the windiest day in Villa Mercedes?
The windiest day measured in Villa Mercedes between 1940 and 2025 was 1 November 1999, with winds reaching 56.2 km/h.
What is the warmest month in Villa Mercedes?
The warmest month in Villa Mercedes is January (24.0 °C on average); the coldest is July (9.1 °C).
How much does it rain in Villa Mercedes?
Villa Mercedes receives on average 744 mm of precipitation per year, spread over about 98 rainy days.
Is it sunny in Villa Mercedes?
Villa Mercedes gets on average 10.1 hours of sunshine per day, roughly 3,687 hours per year over 1940-2025.
What is the biggest single-day snowfall in Villa Mercedes?
The heaviest 24-hour snowfall measured in Villa Mercedes between 1940 and 2025 was 28 July 1958, with 16.0 cm.
Are there tropical nights in Villa Mercedes?
Yes: Villa Mercedes has on average 23 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Villa Mercedes?
In Villa Mercedes, between 1940 and 2025, the highest apparent temperature reached 42.8 °C on 10 February 2025, and the lowest was -15.8 °C on 13 July 2000.
Compare Villa Mercedes with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Villa Mercedes