Río Gallegos climate — normals and trends
Río Gallegos (Argentina) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.4 °C and it receives 368 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 (12.7 °C on average) and the coldest is July (1.2 °C). Rainfall peaks in January.
Río Gallegos averages 84 frost days, 0 hot days (≥ 30 °C) and 99 rainy days per year.
Río Gallegos has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.
The number of frost days there went from about 110 to 58 per year over the period.
The hottest day of the period reached 34.1 °C (on 5 February 2019) and the coldest -16.1 °C (on 20 July 1966).
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
Río GallegosSanta Cruz
- coords
- -51.63°, -69.25°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.4°C
Average daily high
11.6°C
Average daily low
3.4°C
Annual rainfall
368mm
Sunshine / day
9.1h
Mean relative humidity
66%
Average peak wind
31.5km/h
Seasonal range
11.5°C
Frost days (< 0 °C)
84 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
99 d/yr
Annual snowfall
15.4 cm
Average feels-like high
6.5 °C
Average feels-like low
-1.5 °C
Average peak gust
54.1 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
12.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.66 · 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
34.1 °C
5 February 2019
Coldest day
-16.1 °C
20 July 1966
Wettest day
35 mm
4 April 2018
Windiest day
76.7 km/h
12 November 2008
Strongest gust
129.2 km/h
17 November 2025
Hottest feels-like
32.9 °C
1 January 1978
Coldest feels-like
-21.1 °C
20 July 1966
Snowiest day
20.4 cm
12 August 1995
Sunniest day
16.4 h
24 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 | 21.3 °C | +3.9 °C | 26 mm | -23 mm |
| Feb | 17.1 °C | -0.1 °C | 25 mm | -10 mm |
| Mar | 16.2 °C | +1.1 °C | 25 mm | -9 mm |
| Apr | 13.2 °C | +1.5 °C | 15 mm | -13 mm |
| May | 8.0 °C | +0.4 °C | 21 mm | -5 mm |
| Jun | 5.8 °C | +1.4 °C | 17 mm | -6 mm |
| Jul | 5.1 °C | +0.8 °C | 24 mm | +1 mm |
| Aug | 8.1 °C | +1.3 °C | 19 mm | -2 mm |
| Sep | 12.2 °C | +2.0 °C | 7 mm | -13 mm |
| Oct | 15.0 °C | +1.9 °C | 36 mm | +10 mm |
| Nov | 16.5 °C | +1.2 °C | 23 mm | -14 mm |
| Dec | 17.3 °C | +0.7 °C | 44 mm | -5 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 Río Gallegos?
Río Gallegos has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 7.4 °C and it receives 368 mm of precipitation per year.
What is the hottest day ever recorded in Río Gallegos?
The hottest day measured in Río Gallegos between 1940 and 2025 was 5 February 2019, reaching 34.1 °C.
What is the coldest day in Río Gallegos?
The coldest day measured in Río Gallegos between 1940 and 2025 was 20 July 1966, at -16.1 °C.
Does it snow in Río Gallegos?
Yes. Río Gallegos gets on average 15.4 cm of snow per year and has around 84 frost days.
Has the climate of Río Gallegos warmed?
Yes: Río Gallegos warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Río Gallegos?
The wettest day measured in Río Gallegos between 1940 and 2025 was 4 April 2018, with 35 mm of rain in 24 hours.
What was the windiest day in Río Gallegos?
The windiest day measured in Río Gallegos between 1940 and 2025 was 12 November 2008, with winds reaching 76.7 km/h.
What is the warmest month in Río Gallegos?
The warmest month in Río Gallegos is January (12.7 °C on average); the coldest is July (1.2 °C).
How much does it rain in Río Gallegos?
Río Gallegos receives on average 368 mm of precipitation per year, spread over about 99 rainy days.
Is it sunny in Río Gallegos?
Río Gallegos gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.
What is the biggest single-day snowfall in Río Gallegos?
The heaviest 24-hour snowfall measured in Río Gallegos between 1940 and 2025 was 12 August 1995, with 20.4 cm.
Are there tropical nights in Río Gallegos?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Río Gallegos.
What was the most extreme apparent temperature in Río Gallegos?
In Río Gallegos, between 1940 and 2025, the highest apparent temperature reached 32.9 °C on 1 January 1978, and the lowest was -21.1 °C on 20 July 1966.
Compare Río Gallegos with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Río Gallegos