Salta climate

Name: Salta
Address: AR

Salta is warmest in December, with average highs of 25 °C, and coldest in July, when nights average 6.4 °C. January is the wettest month (339 mm) and July the driest (42 mm). Figures are 1991–2020 climate normals.

Across a full year Salta averages 2,225 mm of rain, 82 days above 25 °C and 2 days below freezing.

Argentina · population 520,683 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month December 25 °C
Coldest month July 6.4 °C
Driest month July 42 mm
Wettest month January 339 mm
Least cloud August 34 % cloud
Hottest on record October 38 °C
Coldest on record June -5.9 °C

What to expectSalta through the year

Salta has a clear annual cycle: average daily highs run from 17 °C in July to 25 °C in December, a swing of 9.8 °C in mean temperature across the year.

Counted across a normal year, 82 days a year reach 25 °C, 8 of them reach 30 °C, 2 nights drop below freezing. The warmest reading in the 1991–2020 record is 38 °C, in October.

Rain is strongly seasonal. January averages 339 mm against 42 mm in July — 8.1 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	24.8 °C	339 mm	78 %
February	23.7 °C	319 mm	78 %
March	22.3 °C	323 mm	80 %
April	20.1 °C	204 mm	74 %
May	17.5 °C	122 mm	66 %
June	16.6 °C	61 mm	51 %
July	16.5 °C	42 mm	40 %
August	19.2 °C	47 mm	34 %
September	21.3 °C	76 mm	41 %
October	23.2 °C	161 mm	58 %
November	24.0 °C	224 mm	63 %
December	24.8 °C	306 mm	71 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C	Days below 0 °C
January	24.8 °C	17.0 °C	20.6 °C	35.5 °C	11.7 °C	14	1	0
February	23.7 °C	16.5 °C	19.7 °C	31.7 °C	8.1 °C	9	0	0
March	22.3 °C	15.7 °C	18.6 °C	30.8 °C	8.9 °C	5	0	0
April	20.1 °C	13.1 °C	16.2 °C	27.8 °C	3.1 °C	1	0	0
May	17.5 °C	9.9 °C	13.3 °C	26.6 °C	-0.3 °C	1	0	0
June	16.6 °C	7.4 °C	11.4 °C	28.0 °C	-5.9 °C	0	0	0
July	16.5 °C	6.4 °C	10.8 °C	28.6 °C	-5.9 °C	1	0	1
August	19.2 °C	7.7 °C	12.9 °C	32.1 °C	-3.5 °C	5	0	0
September	21.3 °C	9.9 °C	15.1 °C	36.7 °C	-1.1 °C	8	1	0
October	23.2 °C	13.0 °C	17.8 °C	37.6 °C	2.7 °C	10	2	0
November	24.0 °C	14.8 °C	19.1 °C	35.3 °C	6.6 °C	12	2	0
December	24.8 °C	16.3 °C	20.2 °C	33.1 °C	6.7 °C	14	1	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	339 mm	25	14 h/day	78 %	82 %	9.0 km/h
February	319 mm	24	13 h/day	78 %	84 %	8.9 km/h
March	323 mm	25	12 h/day	80 %	87 %	8.8 km/h
April	204 mm	19	12 h/day	74 %	87 %	8.7 km/h
May	122 mm	14	11 h/day	66 %	86 %	8.5 km/h
June	61 mm	9	11 h/day	51 %	81 %	8.3 km/h
July	42 mm	7	11 h/day	40 %	74 %	8.7 km/h
August	47 mm	7	11 h/day	34 %	68 %	9.5 km/h
September	76 mm	10	12 h/day	41 %	66 %	10 km/h
October	161 mm	17	13 h/day	58 %	71 %	11 km/h
November	224 mm	18	13 h/day	63 %	75 %	10 km/h
December	306 mm	23	14 h/day	71 %	79 %	9.5 km/h

How Salta compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Salta	25 °C	6.4 °C	2,225 mm	82
San Salvador de Jujuy · Argentina	23 °C	6.6 °C	2,480 mm	36
San Miguel de Tucumán · Argentina	28 °C	7.1 °C	1,986 mm	154
Santiago del Estero · Argentina	32 °C	9.9 °C	828 mm	230
Tarija · Bolivia	23 °C	4.6 °C	1,182 mm	78
Catamarca · Argentina	30 °C	6.0 °C	886 mm	178
Calama · Chile	25 °C	1.6 °C	38 mm	94

Where Salta ranks

Ranking	Position	Value
The coolest places in South America in May	27thof 50	18 °C
The coolest places in South America in April	28thof 50	20 °C
The coolest places in South America in March	34thof 50	22 °C
Places with the best weather in South America in September	38thof 50	88/100
The coolest places in South America in June	41stof 50	17 °C
The coolest places in South America year-round	42ndof 50	21 °C

Planning a trip? See the best time to visit Salta.

QuestionsCommon questions about Salta’s climate

When is the best time to visit Salta?

That depends on what you want, so the honest answer is a comparison rather than a single month. January, February, December sit closest to 20 °C on average, December is the warmest month and July the driest. The month-by-month table above has the full picture.

How hot does Salta get?

In December, the warmest month, daily highs average 25 °C. About 8 days a year pass 30 °C. The highest value in the 1991–2020 record is 38 °C.

How cold does it get in winter?

Nights average 6.4 °C in July, the coldest month. A normal year has 2 nights below freezing.

Which month is wettest in Salta?

January, averaging 339 mm over 25 days with rain. The driest month is July with 42 mm. The year as a whole averages 2,225 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Salta rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.