Santiago del Estero climate — normals and trends

Q: What is the climate of Santiago del Estero?

Santiago del Estero has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 21.5 °C and it receives 913 mm of precipitation per year.

Q: What is the hottest day ever recorded in Santiago del Estero?

The hottest day measured in Santiago del Estero between 1940 and 2025 was 7 November 2023, reaching 46.5 °C.

Q: What is the coldest day in Santiago del Estero?

The coldest day measured in Santiago del Estero between 1940 and 2025 was 6 July 1989, at -4.1 °C.

Q: Does it snow in Santiago del Estero?

Almost never: Santiago del Estero sees virtually no snow, with about 1 frost days per year.

Q: Has the climate of Santiago del Estero warmed?

Yes: Santiago del Estero warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Santiago del Estero?

The wettest day measured in Santiago del Estero between 1940 and 2025 was 29 December 1960, with 182 mm of rain in 24 hours.

Q: What was the windiest day in Santiago del Estero?

The windiest day measured in Santiago del Estero between 1940 and 2025 was 26 September 1962, with winds reaching 42.7 km/h.

Q: What is the warmest month in Santiago del Estero?

The warmest month in Santiago del Estero is January (27.4 °C on average); the coldest is July (14.5 °C).

Q: How much does it rain in Santiago del Estero?

Santiago del Estero receives on average 913 mm of precipitation per year, spread over about 100 rainy days.

Q: Is it sunny in Santiago del Estero?

Santiago del Estero gets on average 9.2 hours of sunshine per day, roughly 3,358 hours per year over 1940-2025.

Santiago del Estero (Argentina) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 21.5 °C and it receives 913 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 (27.4 °C on average) and the coldest is July (14.5 °C). Rainfall peaks in January.

Santiago del Estero averages 1 frost days, 128 hot days (≥ 30 °C) and 100 rainy days per year.

Santiago del Estero has warmed by +1.5 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.

The number of frost days there went from about 0 to 2 per year over the period.

The hottest day of the period reached 46.5 °C (on 7 November 2023) and the coldest -4.1 °C (on 6 July 1989).

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

Santiago del EsteroSantiago del Estero

coords: -27.80°, -64.26°
period: 1940–2025 · 86 yrs

CwaHumid subtropical, dry winterWarmest monthJanuaryColdest monthJulyWettest monthJanuaryDriest monthAugust

Mean daily temperature

21.5°C

Average daily high

27.3°C

Average daily low

16.5°C

Annual rainfall

913mm

Sunshine / day

9.2h

Mean relative humidity

63%

Average peak wind

16.3km/h

Seasonal range

12.9°C

Frost days (< 0 °C)

1 d/yr

Hot days (≥ 30 °C)

128 d/yr

Rainy days (≥ 1 mm)

100 d/yr

Annual snowfall

0.0 cm

Average feels-like high

27.9 °C

Average feels-like low

16.1 °C

Average peak gust

34.6 km/h

Tropical nights (≥ 20 °C)

122 d/yr

Solar radiation

16.9 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.5 °C

since 1940

+0.2 °C per decade · r² = 0.40 · p = < 0.001

19402025

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

46.5 °C

7 November 2023

Coldest day

-4.1 °C

6 July 1989

Wettest day

182 mm

29 December 1960

Windiest day

42.7 km/h

26 September 1962

Strongest gust

88.6 km/h

18 January 1952

Hottest feels-like

48.4 °C

17 December 2023

Coldest feels-like

-8.2 °C

6 July 1989

Sunniest day

13.7 h

8 December 2023

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	43.2 °C5 February 2025	-0.3 °C24 June 2025	22.7 °C	661 mm	157	1
2024	44.6 °C3 February 2024	-1.4 °C14 July 2024	22.5 °C	576 mm	176	3
2023	46.5 °C7 November 2023	-0.6 °C15 June 2023	23.2 °C	626 mm	173	1
2022	45.2 °C9 December 2022	0.4 °C17 July 2022	22.0 °C	334 mm	153	0
2021	42.8 °C30 December 2021	-2.3 °C29 July 2021	22.1 °C	587 mm	160	2
2020	44.2 °C24 November 2020	-1.8 °C9 July 2020	22.4 °C	480 mm	178	3
2019	43.3 °C11 October 2019	-0.2 °C10 August 2019	22.0 °C	490 mm	141	1
2018	42.2 °C11 December 2018	-1.3 °C26 July 2018	21.8 °C	587 mm	145	3
2017	45.3 °C15 November 2017	-1.0 °C18 July 2017	22.3 °C	772 mm	143	2
2016	41.5 °C24 January 2016	2.6 °C22 June 2016	21.4 °C	714 mm	136	0
2015	40.5 °C12 December 2015	2.5 °C4 July 2015	22.3 °C	707 mm	137	0
2014	42.8 °C27 October 2014	2.7 °C25 July 2014	22.1 °C	971 mm	123	0
2013	44.5 °C1 February 2013	-2.2 °C23 July 2013	23.0 °C	345 mm	183	4
2012	43.2 °C16 December 2012	-0.4 °C8 June 2012	22.8 °C	545 mm	166	1
2011	43.3 °C21 December 2011	-0.7 °C2 July 2011	21.4 °C	767 mm	134	3
2010	41.3 °C29 January 2010	-1.6 °C19 July 2010	21.2 °C	762 mm	144	1
2009	45.0 °C1 November 2009	-0.7 °C24 July 2009	22.7 °C	696 mm	174	1
2008	42.0 °C8 December 2008	0.5 °C30 May 2008	22.0 °C	828 mm	153	0
2007	41.9 °C1 December 2007	-3.2 °C11 July 2007	21.0 °C	797 mm	138	2
2006	41.9 °C15 November 2006	3.2 °C1 August 2006	22.5 °C	730 mm	157	0
2005	41.9 °C12 October 2005	1.0 °C17 July 2005	21.7 °C	849 mm	139	0
2004	42.2 °C2 November 2004	-0.2 °C19 July 2004	22.0 °C	717 mm	161	2
2003	44.6 °C23 November 2003	0.2 °C12 July 2003	22.2 °C	712 mm	148	0
2002	43.2 °C6 October 2002	0.5 °C2 August 2002	21.6 °C	1,029 mm	130	0
2001	41.7 °C10 March 2001	0.0 °C20 June 2001	21.7 °C	987 mm	135	0
2000	41.1 °C11 January 2000	-0.7 °C19 July 2000	20.9 °C	1,173 mm	117	2
1999	42.3 °C21 December 1999	-0.8 °C15 August 1999	21.2 °C	1,005 mm	139	1
1998	43.9 °C27 December 1998	4.0 °C21 September 1998	21.5 °C	737 mm	115	0
1997	43.0 °C27 October 1997	2.5 °C29 June 1997	22.4 °C	950 mm	161	0
1996	40.4 °C2 January 1996	-0.4 °C29 June 1996	21.4 °C	919 mm	129	1
1995	43.3 °C8 January 1995	0.4 °C20 July 1995	21.9 °C	694 mm	151	0
1994	43.7 °C15 January 1994	-3.4 °C10 July 1994	22.3 °C	898 mm	155	3
1993	42.9 °C29 October 1993	-4.0 °C30 July 1993	21.0 °C	782 mm	143	4
1992	38.8 °C24 October 1992	-0.2 °C19 July 1992	20.6 °C	1,306 mm	114	1
1991	41.9 °C22 October 1991	0.3 °C2 August 1991	21.1 °C	1,335 mm	126	0
1990	42.4 °C21 December 1990	0.8 °C30 July 1990	21.5 °C	797 mm	129	0
1989	42.9 °C2 February 1989	-4.1 °C6 July 1989	22.4 °C	711 mm	155	4
1988	45.0 °C11 November 1988	-0.8 °C14 July 1988	21.5 °C	729 mm	160	1
1987	40.7 °C2 March 1987	-0.3 °C16 June 1987	21.5 °C	859 mm	135	1
1986	42.0 °C27 January 1986	3.3 °C31 May 1986	22.1 °C	812 mm	143	0
1985	41.4 °C13 October 1985	0.1 °C9 June 1985	21.1 °C	1,433 mm	119	0
1984	39.1 °C28 November 1984	-1.4 °C25 August 1984	20.7 °C	1,214 mm	103	1
1983	42.7 °C29 December 1983	0.1 °C11 July 1983	21.1 °C	866 mm	136	0
1982	42.6 °C18 November 1982	2.6 °C30 June 1982	21.9 °C	885 mm	130	0
1981	43.0 °C30 October 1981	0.1 °C19 July 1981	21.4 °C	1,132 mm	126	0
1980	40.3 °C3 November 1980	0.5 °C3 July 1980	21.5 °C	1,003 mm	148	0
1979	39.6 °C22 January 1979	2.2 °C20 July 1979	21.1 °C	1,334 mm	119	0
1978	39.9 °C1 October 1978	-0.5 °C13 August 1978	21.6 °C	1,106 mm	143	2
1977	45.0 °C4 December 1977	2.7 °C16 July 1977	21.7 °C	1,001 mm	133	0
1976	42.5 °C13 December 1976	-1.1 °C2 July 1976	20.9 °C	1,129 mm	140	3
1975	44.7 °C15 November 1975	-2.3 °C17 July 1975	21.8 °C	876 mm	139	2
1974	41.2 °C2 January 1974	2.2 °C8 August 1974	20.9 °C	1,186 mm	113	0
1973	42.8 °C21 October 1973	0.4 °C22 July 1973	21.0 °C	1,027 mm	128	0
1972	44.9 °C2 January 1972	-0.8 °C22 July 1972	21.8 °C	843 mm	137	1
1971	44.3 °C29 December 1971	-0.1 °C14 August 1971	20.9 °C	1,232 mm	128	1
1970	41.4 °C10 December 1970	-1.6 °C8 July 1970	21.6 °C	1,046 mm	149	2
1969	41.6 °C4 February 1969	-1.2 °C10 July 1969	22.1 °C	969 mm	154	3
1968	41.5 °C1 November 1968	0.8 °C16 May 1968	21.6 °C	1,258 mm	138	0
1967	41.1 °C30 December 1967	0.8 °C16 June 1967	21.4 °C	1,075 mm	138	0
1966	44.1 °C8 December 1966	-0.8 °C5 August 1966	22.0 °C	741 mm	143	1
1965	43.9 °C29 November 1965	1.6 °C20 August 1965	22.2 °C	701 mm	163	0
1964	41.8 °C29 February 1964	0.7 °C1 July 1964	21.5 °C	743 mm	136	0
1963	44.5 °C4 January 1963	1.0 °C5 August 1963	21.4 °C	1,101 mm	119	0
1962	43.5 °C28 November 1962	-1.5 °C6 July 1962	21.5 °C	605 mm	151	3
1961	41.4 °C19 December 1961	-1.0 °C14 June 1961	21.6 °C	878 mm	125	1
1960	40.3 °C10 January 1960	0.2 °C8 July 1960	21.3 °C	1,217 mm	126	0
1959	40.0 °C2 November 1959	4.2 °C21 May 1959	20.6 °C	1,188 mm	102	0
1958	38.9 °C2 November 1958	1.6 °C9 August 1958	21.0 °C	947 mm	110	0
1957	40.6 °C6 October 1957	-0.7 °C21 July 1957	20.5 °C	1,219 mm	91	2
1956	35.5 °C4 January 1956	5.3 °C3 July 1956	19.9 °C	1,184 mm	50	0
1955	37.5 °C6 January 1955	0.7 °C30 July 1955	20.1 °C	1,166 mm	69	0
1954	37.9 °C25 December 1954	4.4 °C6 August 1954	20.3 °C	1,060 mm	77	0
1953	35.4 °C27 January 1953	5.3 °C23 July 1953	21.2 °C	1,299 mm	71	0
1952	39.9 °C23 December 1952	3.5 °C30 June 1952	21.1 °C	917 mm	99	0
1951	36.8 °C24 September 1951	5.5 °C27 June 1951	21.2 °C	1,238 mm	62	0
1950	38.0 °C12 December 1950	2.5 °C2 August 1950	20.9 °C	936 mm	85	0
1949	36.9 °C19 December 1949	3.8 °C11 August 1949	20.6 °C	966 mm	87	0
1948	34.7 °C26 February 1948	3.7 °C30 July 1948	20.7 °C	1,277 mm	60	0
1947	35.6 °C2 February 1947	3.6 °C14 July 1947	20.3 °C	1,349 mm	46	0
1946	38.0 °C2 January 1946	3.1 °C16 July 1946	20.7 °C	1,056 mm	70	0
1945	39.4 °C25 December 1945	1.3 °C9 July 1945	21.6 °C	685 mm	123	0
1944	35.8 °C29 November 1944	-0.7 °C7 July 1944	20.8 °C	1,088 mm	78	1
1943	44.3 °C2 January 1943	3.7 °C24 August 1943	22.4 °C	894 mm	137	0
1942	40.1 °C29 December 1942	-0.4 °C16 June 1942	21.1 °C	611 mm	129	2
1941	41.3 °C10 December 1941	1.9 °C28 June 1941	20.8 °C	604 mm	101	0
1940	35.5 °C1 November 1940	5.2 °C15 June 1940	20.0 °C	1,223 mm	55	0

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?

Year

Across the whole year

Average daily high

29.0 °C

+1.7 °C

Hot days (≥ 30 °C)

157 d/yr

+29

Frost days (< 0 °C)

1 d/yr

Annual rainfall

661 mm

-252 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	35.3 °C	+2.4 °C	83 mm	-80 mm
Feb	37.5 °C	+6.0 °C	71 mm	-64 mm
Mar	30.3 °C	+1.0 °C	78 mm	-56 mm
Apr	25.9 °C	-0.1 °C	8 mm	-63 mm
May	24.8 °C	+1.8 °C	30 mm	+3 mm
Jun	20.0 °C	-0.3 °C	2 mm	-15 mm
Jul	21.8 °C	+1.0 °C	17 mm	+1 mm
Aug	24.6 °C	+0.7 °C	8 mm	-7 mm
Sep	29.1 °C	+2.5 °C	10 mm	-25 mm
Oct	31.5 °C	+2.4 °C	12 mm	-55 mm
Nov	33.8 °C	+2.7 °C	23 mm	-79 mm
Dec	33.4 °C	+0.8 °C	319 mm	+188 mm

The year's extremes

Hottest day

43.2 °C

5 Feb 2025

Coldest day

-0.3 °C

24 Jun 2025

Wettest day

132.6 mm

28 Dec 2025

Windiest day

39.2 km/h

27 Sep 2025

Strongest gust

74.9 km/h

27 Sep 2025

Hottest feels-like

47.1 °C

5 Feb 2025

Coldest feels-like

-4.0 °C

24 Jun 2025

Sunniest day

13.7 h

8 Dec 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Santiago del Estero?

Santiago del Estero has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 21.5 °C and it receives 913 mm of precipitation per year.

What is the hottest day ever recorded in Santiago del Estero?

The hottest day measured in Santiago del Estero between 1940 and 2025 was 7 November 2023, reaching 46.5 °C.

What is the coldest day in Santiago del Estero?

The coldest day measured in Santiago del Estero between 1940 and 2025 was 6 July 1989, at -4.1 °C.

Does it snow in Santiago del Estero?

Almost never: Santiago del Estero sees virtually no snow, with about 1 frost days per year.

Has the climate of Santiago del Estero warmed?

Yes: Santiago del Estero warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Santiago del Estero?

The wettest day measured in Santiago del Estero between 1940 and 2025 was 29 December 1960, with 182 mm of rain in 24 hours.

What was the windiest day in Santiago del Estero?

The windiest day measured in Santiago del Estero between 1940 and 2025 was 26 September 1962, with winds reaching 42.7 km/h.

What is the warmest month in Santiago del Estero?

The warmest month in Santiago del Estero is January (27.4 °C on average); the coldest is July (14.5 °C).

How much does it rain in Santiago del Estero?

Santiago del Estero receives on average 913 mm of precipitation per year, spread over about 100 rainy days.

Is it sunny in Santiago del Estero?

Santiago del Estero gets on average 9.2 hours of sunshine per day, roughly 3,358 hours per year over 1940-2025.

Are there tropical nights in Santiago del Estero?

Yes: Santiago del Estero has on average 122 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Santiago del Estero?

In Santiago del Estero, between 1940 and 2025, the highest apparent temperature reached 48.4 °C on 17 December 2023, and the lowest was -8.2 °C on 6 July 1989.

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