San Martín de los Andes climate — normals and trends
San Martín de los Andes (Argentina) has a dry-summer subarctic climate (Dsc) under the Köppen-Geiger classification. Its mean annual temperature is 5.5 °C and it receives 1,208 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 (12.2 °C on average) and the coldest is July (-0.6 °C). Rainfall peaks in June.
San Martín de los Andes averages 153 frost days, 0 hot days (≥ 30 °C) and 134 rainy days per year.
San Martín de los Andes has warmed by +1.4 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.
The number of frost days there went from about 170 to 136 per year over the period.
The hottest day of the period reached 32.5 °C (on 7 February 2013) and the coldest -17.1 °C (on 13 June 1987).
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
San Martín de los AndesNeuquen
- coords
- -40.16°, -71.35°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
5.5°C
Average daily high
10.7°C
Average daily low
1.0°C
Annual rainfall
1,208mm
Sunshine / day
10.2h
Mean relative humidity
77%
Average peak wind
14.5km/h
Seasonal range
12.8°C
Frost days (< 0 °C)
153 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
134 d/yr
Annual snowfall
446.5 cm
Average feels-like high
7.9 °C
Average feels-like low
-2.2 °C
Average peak gust
55.7 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
17.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.41 · 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
32.5 °C
7 February 2013
Coldest day
-17.1 °C
13 June 1987
Wettest day
101 mm
1 July 2004
Windiest day
38.2 km/h
12 January 1974
Strongest gust
155.5 km/h
13 August 1959
Hottest feels-like
33.6 °C
25 December 1995
Coldest feels-like
-22.0 °C
13 June 1987
Snowiest day
49.5 cm
20 July 2019
Sunniest day
14.8 h
7 December 1940
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 | 23.4 °C | +4.4 °C | 5 mm | -29 mm |
| Feb | 20.5 °C | +1.4 °C | 16 mm | -13 mm |
| Mar | 16.8 °C | +0.6 °C | 60 mm | +15 mm |
| Apr | 11.4 °C | 0.0 °C | 111 mm | +28 mm |
| May | 6.8 °C | +0.2 °C | 132 mm | -31 mm |
| Jun | 4.0 °C | +0.9 °C | 104 mm | -107 mm |
| Jul | 4.4 °C | +1.8 °C | 116 mm | -80 mm |
| Aug | 5.7 °C | +1.8 °C | 106 mm | -55 mm |
| Sep | 8.1 °C | +1.8 °C | 114 mm | +17 mm |
| Oct | 12.2 °C | +2.8 °C | 43 mm | -38 mm |
| Nov | 17.2 °C | +3.7 °C | 52 mm | -5 mm |
| Dec | 17.9 °C | +1.1 °C | 36 mm | -16 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 San Martín de los Andes?
San Martín de los Andes has a dry-summer subarctic climate (Köppen Dsc). Over 1940-2025, the average annual temperature is 5.5 °C and it receives 1,208 mm of precipitation per year.
What is the hottest day ever recorded in San Martín de los Andes?
The hottest day measured in San Martín de los Andes between 1940 and 2025 was 7 February 2013, reaching 32.5 °C.
What is the coldest day in San Martín de los Andes?
The coldest day measured in San Martín de los Andes between 1940 and 2025 was 13 June 1987, at -17.1 °C.
Does it snow in San Martín de los Andes?
Yes. San Martín de los Andes gets on average 446.5 cm of snow per year and has around 153 frost days.
Has the climate of San Martín de los Andes warmed?
Yes: San Martín de los Andes warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in San Martín de los Andes?
The wettest day measured in San Martín de los Andes between 1940 and 2025 was 1 July 2004, with 101 mm of rain in 24 hours.
What was the windiest day in San Martín de los Andes?
The windiest day measured in San Martín de los Andes between 1940 and 2025 was 12 January 1974, with winds reaching 38.2 km/h.
What is the warmest month in San Martín de los Andes?
The warmest month in San Martín de los Andes is January (12.2 °C on average); the coldest is July (-0.6 °C).
How much does it rain in San Martín de los Andes?
San Martín de los Andes receives on average 1,208 mm of precipitation per year, spread over about 134 rainy days.
Is it sunny in San Martín de los Andes?
San Martín de los Andes gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.
What is the biggest single-day snowfall in San Martín de los Andes?
The heaviest 24-hour snowfall measured in San Martín de los Andes between 1940 and 2025 was 20 July 2019, with 49.5 cm.
Are there tropical nights in San Martín de los Andes?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in San Martín de los Andes.
What was the most extreme apparent temperature in San Martín de los Andes?
In San Martín de los Andes, between 1940 and 2025, the highest apparent temperature reached 33.6 °C on 25 December 1995, and the lowest was -22.0 °C on 13 June 1987.
Compare San Martín de los Andes with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around San Martín de los Andes