Puerto Deseado climate — normals and trends
Puerto Deseado (Argentina) has a cold semi-arid climate (BSk) under the Köppen-Geiger classification. Its mean annual temperature is 10.8 °C and it receives 228 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 (16.9 °C on average) and the coldest is July (4.2 °C). Rainfall peaks in January.
Puerto Deseado averages 32 frost days, 4 hot days (≥ 30 °C) and 56 rainy days per year.
Puerto Deseado has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The number of frost days there went from about 47 to 17 per year over the period.
The hottest day of the period reached 37.5 °C (on 5 February 2019) and the coldest -9.9 °C (on 19 June 2002).
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
Puerto DeseadoSanta Cruz
- coords
- -47.75°, -65.90°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.8°C
Average daily high
15.3°C
Average daily low
6.8°C
Annual rainfall
228mm
Sunshine / day
10.1h
Mean relative humidity
59%
Average peak wind
29.5km/h
Seasonal range
12.7°C
Frost days (< 0 °C)
32 d/yr
Hot days (≥ 30 °C)
4 d/yr
Rainy days (≥ 1 mm)
56 d/yr
Annual snowfall
3.7 cm
Average feels-like high
11.0 °C
Average feels-like low
2.2 °C
Average peak gust
50.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
15.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.58 · 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
37.5 °C
5 February 2019
Coldest day
-9.9 °C
19 June 2002
Wettest day
47 mm
30 March 2017
Windiest day
74.9 km/h
17 November 2025
Strongest gust
125.3 km/h
17 November 2025
Hottest feels-like
35.2 °C
13 January 1966
Coldest feels-like
-16.0 °C
5 July 1945
Snowiest day
15.8 cm
5 June 2014
Sunniest day
15.4 h
17 December 2017
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 | 24.1 °C | +2.0 °C | 10 mm | -15 mm |
| Feb | 20.5 °C | -1.1 °C | 27 mm | +9 mm |
| Mar | 19.8 °C | +0.5 °C | 29 mm | +9 mm |
| Apr | 15.3 °C | -0.2 °C | 18 mm | -1 mm |
| May | 11.6 °C | +0.4 °C | 11 mm | -10 mm |
| Jun | 7.9 °C | +0.2 °C | 13 mm | -9 mm |
| Jul | 9.5 °C | +1.8 °C | 12 mm | -4 mm |
| Aug | 10.8 °C | +0.9 °C | 3 mm | -13 mm |
| Sep | 13.5 °C | +0.6 °C | 13 mm | -3 mm |
| Oct | 18.0 °C | +1.7 °C | 16 mm | -0 mm |
| Nov | 19.3 °C | +0.2 °C | 6 mm | -12 mm |
| Dec | 22.2 °C | +1.4 °C | 18 mm | -4 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 Puerto Deseado?
Puerto Deseado has a cold semi-arid climate (Köppen BSk). Over 1940-2025, the average annual temperature is 10.8 °C and it receives 228 mm of precipitation per year.
What is the hottest day ever recorded in Puerto Deseado?
The hottest day measured in Puerto Deseado between 1940 and 2025 was 5 February 2019, reaching 37.5 °C.
What is the coldest day in Puerto Deseado?
The coldest day measured in Puerto Deseado between 1940 and 2025 was 19 June 2002, at -9.9 °C.
Does it snow in Puerto Deseado?
Yes. Puerto Deseado gets on average 3.7 cm of snow per year and has around 32 frost days.
Has the climate of Puerto Deseado warmed?
Yes: Puerto Deseado warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Puerto Deseado?
The wettest day measured in Puerto Deseado between 1940 and 2025 was 30 March 2017, with 47 mm of rain in 24 hours.
What was the windiest day in Puerto Deseado?
The windiest day measured in Puerto Deseado between 1940 and 2025 was 17 November 2025, with winds reaching 74.9 km/h.
What is the warmest month in Puerto Deseado?
The warmest month in Puerto Deseado is January (16.9 °C on average); the coldest is July (4.2 °C).
How much does it rain in Puerto Deseado?
Puerto Deseado receives on average 228 mm of precipitation per year, spread over about 56 rainy days.
Is it sunny in Puerto Deseado?
Puerto Deseado 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 Puerto Deseado?
The heaviest 24-hour snowfall measured in Puerto Deseado between 1940 and 2025 was 5 June 2014, with 15.8 cm.
Are there tropical nights in Puerto Deseado?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Puerto Deseado.
What was the most extreme apparent temperature in Puerto Deseado?
In Puerto Deseado, between 1940 and 2025, the highest apparent temperature reached 35.2 °C on 13 January 1966, and the lowest was -16.0 °C on 5 July 1945.
Compare Puerto Deseado with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Puerto Deseado