General Jose de San Martin climate — normals and trends

Q: What is the climate of General Jose de San Martin?

General Jose de San Martin has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 21.7 °C and it receives 1,360 mm of precipitation per year.

Q: What is the hottest day ever recorded in General Jose de San Martin?

The hottest day measured in General Jose de San Martin between 1940 and 2025 was 16 October 2023, reaching 43.9 °C.

Q: What is the coldest day in General Jose de San Martin?

The coldest day measured in General Jose de San Martin between 1940 and 2025 was 13 July 2000, at -1.9 °C.

Q: Does it snow in General Jose de San Martin?

Almost never: General Jose de San Martin sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of General Jose de San Martin warmed?

Yes: General Jose de San Martin warmed by +0.7 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in General Jose de San Martin?

The wettest day measured in General Jose de San Martin between 1940 and 2025 was 1 February 1984, with 145 mm of rain in 24 hours.

Q: What was the windiest day in General Jose de San Martin?

The windiest day measured in General Jose de San Martin between 1940 and 2025 was 5 October 1942, with winds reaching 48.8 km/h.

Q: What is the warmest month in General Jose de San Martin?

The warmest month in General Jose de San Martin is January (27.1 °C on average); the coldest is July (16.0 °C).

Q: How much does it rain in General Jose de San Martin?

General Jose de San Martin receives on average 1,360 mm of precipitation per year, spread over about 117 rainy days.

Q: Is it sunny in General Jose de San Martin?

General Jose de San Martin gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.

General Jose de San Martin (Argentina) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 21.7 °C and it receives 1,360 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 (27.1 °C on average) and the coldest is July (16.0 °C). Rainfall peaks in October.

General Jose de San Martin averages 0 frost days, 122 hot days (≥ 30 °C) and 117 rainy days per year.

General Jose de San Martin has warmed by +0.7 °C between 1940 and 2025, or +0.08 °C per decade. This trend is statistically significant.

The hottest day of the period reached 43.9 °C (on 16 October 2023) and the coldest -1.9 °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

General Jose de San MartinChaco

coords: -26.54°, -59.34°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJanuaryColdest monthJulyWettest monthOctoberDriest monthJuly

Mean daily temperature

21.7°C

Average daily high

26.9°C

Average daily low

17.1°C

Annual rainfall

1,360mm

Sunshine / day

9.3h

Mean relative humidity

74%

Average peak wind

17.5km/h

Seasonal range

11.1°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

122 d/yr

Rainy days (≥ 1 mm)

117 d/yr

Annual snowfall

0.0 cm

Average feels-like high

28.8 °C

Average feels-like low

17.3 °C

Average peak gust

33.9 km/h

Tropical nights (≥ 20 °C)

133 d/yr

Solar radiation

17.4 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+0.7 °C

since 1940

+0.1 °C per decade · r² = 0.10 · p = 0.003

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

43.9 °C

16 October 2023

Coldest day

-1.9 °C

13 July 2000

Wettest day

145 mm

1 February 1984

Windiest day

48.8 km/h

5 October 1942

Strongest gust

81.4 km/h

13 September 1978

Hottest feels-like

45.9 °C

20 January 2003

Coldest feels-like

-5.6 °C

13 July 2000

Sunniest day

13.7 h

15 December 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	40.6 °C3 March 2025	0.5 °C3 July 2025	22.0 °C	1,110 mm	136	0
2024	40.8 °C16 March 2024	-0.1 °C10 August 2024	22.7 °C	1,152 mm	168	1
2023	43.9 °C16 October 2023	2.3 °C19 July 2023	23.1 °C	1,012 mm	162	0
2022	41.2 °C17 January 2022	0.8 °C12 June 2022	21.6 °C	889 mm	143	0
2021	38.8 °C30 December 2021	-1.5 °C29 July 2021	21.7 °C	948 mm	150	3
2020	42.8 °C30 September 2020	0.2 °C21 August 2020	22.5 °C	745 mm	194	0
2019	39.5 °C30 October 2019	0.8 °C6 July 2019	22.1 °C	1,112 mm	126	0
2018	38.7 °C23 September 2018	0.8 °C10 August 2018	22.1 °C	1,184 mm	151	0
2017	40.5 °C16 December 2017	-0.8 °C19 July 2017	22.4 °C	1,441 mm	140	2
2016	36.0 °C26 August 2016	-0.6 °C12 June 2016	21.0 °C	1,528 mm	120	1
2015	37.5 °C2 February 2015	4.0 °C19 June 2015	22.4 °C	1,606 mm	142	0
2014	40.7 °C16 October 2014	2.8 °C25 July 2014	22.6 °C	1,467 mm	124	0
2013	39.9 °C15 November 2013	-1.3 °C27 August 2013	21.9 °C	1,071 mm	132	3
2012	40.3 °C2 October 2012	-0.9 °C8 June 2012	23.0 °C	946 mm	169	1
2011	42.1 °C21 December 2011	-0.1 °C27 June 2011	21.7 °C	1,160 mm	137	1
2010	39.9 °C3 February 2010	0.2 °C14 July 2010	21.1 °C	1,341 mm	126	0
2009	43.3 °C2 November 2009	-0.6 °C24 July 2009	22.1 °C	1,104 mm	175	1
2008	40.9 °C21 December 2008	-0.1 °C16 June 2008	22.3 °C	873 mm	169	1
2007	41.2 °C10 January 2007	-0.4 °C11 July 2007	21.4 °C	1,451 mm	147	1
2006	39.5 °C15 January 2006	2.3 °C31 July 2006	22.5 °C	1,313 mm	149	0
2005	40.2 °C13 October 2005	0.9 °C19 July 2005	21.9 °C	1,021 mm	151	0
2004	38.8 °C31 January 2004	1.1 °C12 June 2004	21.5 °C	1,204 mm	136	0
2003	40.6 °C23 September 2003	2.7 °C11 July 2003	22.1 °C	1,275 mm	150	0
2002	38.0 °C7 October 2002	1.6 °C2 September 2002	21.9 °C	1,748 mm	133	0
2001	36.8 °C4 January 2001	-0.9 °C28 July 2001	21.8 °C	1,287 mm	134	1
2000	39.9 °C21 January 2000	-1.9 °C13 July 2000	21.2 °C	1,669 mm	121	3
1999	38.5 °C13 October 1999	0.4 °C15 August 1999	21.2 °C	1,262 mm	135	0
1998	37.7 °C26 January 1998	3.9 °C26 June 1998	21.0 °C	1,993 mm	83	0
1997	38.9 °C7 September 1997	3.4 °C30 June 1997	22.6 °C	1,404 mm	153	0
1996	38.2 °C21 September 1996	0.1 °C29 June 1996	21.3 °C	1,745 mm	113	0
1995	41.1 °C17 December 1995	0.7 °C21 July 1995	21.8 °C	1,171 mm	144	0
1994	38.7 °C22 September 1994	-0.5 °C9 July 1994	21.9 °C	1,489 mm	127	2
1993	37.2 °C6 September 1993	-1.5 °C1 August 1993	21.2 °C	1,570 mm	130	2
1992	37.2 °C8 February 1992	0.7 °C19 July 1992	20.8 °C	1,454 mm	93	0
1991	38.1 °C21 January 1991	-1.1 °C2 August 1991	21.5 °C	1,724 mm	112	1
1990	40.7 °C14 March 1990	0.9 °C22 July 1990	21.2 °C	1,629 mm	119	0
1989	39.1 °C13 February 1989	-0.1 °C6 July 1989	21.3 °C	1,399 mm	110	1
1988	41.5 °C11 November 1988	-0.1 °C12 July 1988	21.4 °C	1,077 mm	148	1
1987	37.1 °C11 October 1987	0.6 °C16 June 1987	21.0 °C	1,589 mm	116	0
1986	38.8 °C28 January 1986	3.2 °C23 July 1986	22.1 °C	2,017 mm	130	0
1985	38.7 °C8 December 1985	1.6 °C12 July 1985	21.9 °C	1,352 mm	132	0
1984	38.7 °C9 January 1984	1.6 °C27 June 1984	21.4 °C	1,582 mm	122	0
1983	36.9 °C30 December 1983	3.4 °C7 June 1983	21.1 °C	1,182 mm	130	0
1982	38.7 °C16 January 1982	3.4 °C29 June 1982	21.8 °C	1,449 mm	109	0
1981	36.0 °C24 October 1981	0.4 °C19 July 1981	21.6 °C	1,364 mm	124	0
1980	38.8 °C17 December 1980	0.7 °C3 July 1980	21.8 °C	1,449 mm	138	0
1979	39.1 °C10 February 1979	1.2 °C31 May 1979	21.3 °C	1,285 mm	109	0
1978	39.8 °C30 January 1978	1.9 °C15 August 1978	22.0 °C	1,081 mm	149	0
1977	41.0 °C10 March 1977	2.8 °C25 June 1977	22.5 °C	1,097 mm	140	0
1976	39.3 °C14 December 1976	0.3 °C10 July 1976	21.4 °C	825 mm	147	0
1975	39.7 °C14 February 1975	0.1 °C19 July 1975	21.1 °C	1,459 mm	101	0
1974	39.9 °C4 November 1974	1.6 °C19 August 1974	21.0 °C	1,174 mm	112	0
1973	37.2 °C7 January 1973	3.8 °C28 August 1973	21.0 °C	1,752 mm	95	0
1972	40.0 °C3 January 1972	0.7 °C8 July 1972	21.4 °C	1,696 mm	106	0
1971	39.7 °C29 December 1971	0.8 °C12 June 1971	21.2 °C	1,326 mm	129	0
1970	43.5 °C8 December 1970	0.6 °C2 July 1970	21.7 °C	1,634 mm	133	0
1969	38.7 °C17 September 1969	0.7 °C9 July 1969	21.4 °C	1,828 mm	123	0
1968	40.9 °C12 December 1968	2.7 °C16 May 1968	21.5 °C	1,531 mm	118	0
1967	38.0 °C18 December 1967	1.8 °C14 June 1967	21.6 °C	1,775 mm	116	0
1966	38.5 °C6 November 1966	0.6 °C5 August 1966	21.1 °C	1,402 mm	95	0
1965	37.1 °C26 January 1965	-1.7 °C11 July 1965	21.1 °C	1,245 mm	106	1
1964	38.7 °C26 January 1964	0.7 °C30 June 1964	21.0 °C	829 mm	124	0
1963	40.4 °C3 January 1963	1.9 °C17 June 1963	22.4 °C	1,171 mm	136	0
1962	39.2 °C24 December 1962	-1.2 °C17 July 1962	20.1 °C	1,097 mm	117	1
1961	38.6 °C17 January 1961	-0.2 °C15 June 1961	21.9 °C	1,335 mm	124	1
1960	37.6 °C22 January 1960	-0.5 °C10 July 1960	21.2 °C	951 mm	133	1
1959	35.7 °C25 January 1959	4.3 °C12 June 1959	21.2 °C	2,209 mm	92	0
1958	40.7 °C3 February 1958	1.3 °C10 August 1958	21.6 °C	1,594 mm	111	0
1957	38.1 °C8 October 1957	0.7 °C20 July 1957	21.5 °C	1,221 mm	116	0
1956	33.9 °C8 January 1956	2.6 °C20 September 1956	20.3 °C	1,685 mm	52	0
1955	37.6 °C10 February 1955	1.1 °C1 August 1955	20.8 °C	1,440 mm	85	0
1954	36.2 °C1 December 1954	4.5 °C6 August 1954	21.1 °C	1,450 mm	83	0
1953	39.2 °C5 January 1953	4.4 °C20 July 1953	22.1 °C	1,459 mm	81	0
1952	37.4 °C27 December 1952	5.0 °C19 June 1952	21.5 °C	1,185 mm	92	0
1951	34.6 °C4 September 1951	5.5 °C29 June 1951	21.8 °C	1,674 mm	61	0
1950	36.4 °C10 November 1950	3.3 °C4 August 1950	21.3 °C	1,182 mm	73	0
1949	36.2 °C20 December 1949	3.6 °C11 August 1949	21.1 °C	1,603 mm	85	0
1948	35.0 °C23 September 1948	5.1 °C23 May 1948	21.4 °C	1,628 mm	56	0
1947	33.6 °C29 November 1947	3.5 °C11 July 1947	21.3 °C	1,370 mm	69	0
1946	37.0 °C2 January 1946	2.7 °C18 July 1946	21.1 °C	1,986 mm	70	0
1945	40.6 °C10 January 1945	2.0 °C24 June 1945	22.7 °C	1,145 mm	123	0
1944	39.8 °C7 February 1944	2.7 °C27 June 1944	23.1 °C	1,135 mm	127	0
1943	40.6 °C17 January 1943	5.3 °C31 August 1943	22.9 °C	803 mm	143	0
1942	40.8 °C25 November 1942	1.5 °C19 June 1942	22.0 °C	895 mm	148	0
1941	35.9 °C16 February 1941	3.9 °C26 June 1941	21.3 °C	1,701 mm	75	0
1940	33.5 °C25 December 1940	4.8 °C9 August 1940	21.0 °C	1,489 mm	76	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

27.9 °C

+1.0 °C

Hot days (≥ 30 °C)

136 d/yr

+14

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1110 mm

-250 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	34.8 °C	+2.5 °C	30 mm	-105 mm
Feb	37.0 °C	+5.6 °C	48 mm	-81 mm
Mar	32.5 °C	+2.6 °C	66 mm	-68 mm
Apr	26.2 °C	-0.2 °C	46 mm	-95 mm
May	25.0 °C	+1.8 °C	166 mm	+67 mm
Jun	18.4 °C	-2.6 °C	117 mm	+41 mm
Jul	22.9 °C	+1.6 °C	27 mm	-24 mm
Aug	23.7 °C	+0.4 °C	51 mm	-10 mm
Sep	25.6 °C	+0.3 °C	163 mm	+59 mm
Oct	26.8 °C	-0.7 °C	127 mm	-22 mm
Nov	30.0 °C	+0.6 °C	64 mm	-85 mm
Dec	31.8 °C	+0.3 °C	207 mm	+73 mm

The year's extremes

Hottest day

40.6 °C

3 Mar 2025

Coldest day

0.5 °C

3 Jul 2025

Wettest day

48.2 mm

22 Dec 2025

Windiest day

35.5 km/h

27 May 2025

Strongest gust

65.2 km/h

19 Aug 2025

Hottest feels-like

45.4 °C

21 Dec 2025

Coldest feels-like

-2.9 °C

3 Jul 2025

Sunniest day

13.7 h

13 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 General Jose de San Martin?

General Jose de San Martin has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 21.7 °C and it receives 1,360 mm of precipitation per year.

What is the hottest day ever recorded in General Jose de San Martin?

The hottest day measured in General Jose de San Martin between 1940 and 2025 was 16 October 2023, reaching 43.9 °C.

What is the coldest day in General Jose de San Martin?

The coldest day measured in General Jose de San Martin between 1940 and 2025 was 13 July 2000, at -1.9 °C.

Does it snow in General Jose de San Martin?

Almost never: General Jose de San Martin sees virtually no snow, with about 0 frost days per year.

Has the climate of General Jose de San Martin warmed?

Yes: General Jose de San Martin warmed by +0.7 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in General Jose de San Martin?

The wettest day measured in General Jose de San Martin between 1940 and 2025 was 1 February 1984, with 145 mm of rain in 24 hours.

What was the windiest day in General Jose de San Martin?

The windiest day measured in General Jose de San Martin between 1940 and 2025 was 5 October 1942, with winds reaching 48.8 km/h.

What is the warmest month in General Jose de San Martin?

The warmest month in General Jose de San Martin is January (27.1 °C on average); the coldest is July (16.0 °C).

How much does it rain in General Jose de San Martin?

General Jose de San Martin receives on average 1,360 mm of precipitation per year, spread over about 117 rainy days.

Is it sunny in General Jose de San Martin?

General Jose de San Martin gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.

Are there tropical nights in General Jose de San Martin?

Yes: General Jose de San Martin has on average 133 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in General Jose de San Martin?

In General Jose de San Martin, between 1940 and 2025, the highest apparent temperature reached 45.9 °C on 20 January 2003, and the lowest was -5.6 °C on 13 July 2000.

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