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Monthly climate in Salta, Argentina

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Salta features a humid subtropical climate (Cwa). Temperatures typically range between 9 °C (48 °F) and 19 °C (66 °F) through the year, but rarely can drop to -4 °C (25 °F) or can rise to as high as 32 °C (90 °F). The average annual precipitation amounts to about 1933 mm (76.1 inches) and receives 189 rainy days on the 1 mm (0.04 inches) threshold annually. Salta enjoys an average of 3809 hours of sunshine throughout the year, and daylight varies from 10 hours 36 minutes to 13 hours 38 minutes per day.

Monthly average temperatures in Salta, Argentina

The warmest months in Salta are January, February and December, with daily mean temperatures ranging from 17 to 19 °C (64 - 66 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 9 to 10 °C (48 - 51 °F) throughout the day. On average each year, Salta experiences 35 days above 25 °C (77.0 °F) and 8 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Salta. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum29°C
(85°F)		28°C
(83°F)		29°C
(84°F)		26°C
(79°F)		26°C
(78°F)		26°C
(79°F)		26°C
(79°F)		30°C
(86°F)		31°C
(88°F)		32°C
(90°F)		29°C
(85°F)		28°C
(83°F)
Mean maximum28°C
(83°F)		27°C
(80°F)		26°C
(79°F)		24°C
(75°F)		23°C
(74°F)		21°C
(71°F)		24°C
(76°F)		27°C
(81°F)		29°C
(84°F)		29°C
(85°F)		28°C
(82°F)		28°C
(82°F)
Average high23°C
(74°F)		22°C
(72°F)		21°C
(69°F)		19°C
(66°F)		17°C
(62°F)		16°C
(60°F)		15°C
(60°F)		18°C
(65°F)		20°C
(68°F)		21°C
(70°F)		22°C
(71°F)		22°C
(73°F)
Daily mean19°C
(66°F)		17°C
(64°F)		16°C
(61°F)		14°C
(58°F)		11°C
(53°F)		9°C
(48°F)		9°C
(48°F)		10°C
(51°F)		13°C
(56°F)		15°C
(60°F)		17°C
(63°F)		18°C
(64°F)
Average low15°C
(59°F)		14°C
(57°F)		13°C
(55°F)		11°C
(52°F)		7°C
(45°F)		4°C
(39°F)		3°C
(38°F)		4°C
(39°F)		7°C
(45°F)		10°C
(50°F)		12°C
(54°F)		14°C
(57°F)
Mean minimum12°C
(53°F)		11°C
(52°F)		8°C
(47°F)		6°C
(43°F)		1°C
(35°F)		-0°C
(32°F)		-3°C
(26°F)		-1°C
(30°F)		1°C
(35°F)		5°C
(41°F)		8°C
(47°F)		9°C
(49°F)
Minimum10°C
(51°F)		10°C
(51°F)		4°C
(40°F)		4°C
(40°F)		0°C
(32°F)		-4°C
(25°F)		-4°C
(25°F)		-4°C
(25°F)		-1°C
(30°F)		3°C
(37°F)		7°C
(45°F)		7°C
(45°F)

Compare climate in Salta with other places

Compare temperature, precipitation, sunshine, UV index in Salta, Argentina with other places around the world.

Monthly average precipitation in Salta, Argentina

Salta usually has the most precipitation in February, March and December, with an average of 23 rainy days and 279 mm (11.0 inches) of precipitation per month. The driest months in Salta are June, July and August. On average, 37 mm (1.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Salta. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)241 (9.5)267 (10.5)292 (11.5)223 (8.8)120 (4.7)35 (1.4)34 (1.3)41 (1.6)55 (2.2)137 (5.4)210 (8.2)278 (10.9)
Average precipitation days (≥ 1 mm)22242422147768151822

Monthly sunshine hours in Salta, Argentina

The sunniest months in Salta are October, November and December, when the sun shines an average of 11 hours 32 minutes a day. Least sunny months in Salta: January, February and June receive an average of 9 hours 33 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Salta. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours275291321295304292308329328356354352
Mean daily daylight hours13h 27m12h 54m12h 11m11h 28m10h 53m10h 36m10h 45m11h 16m11h 57m12h 40m13h 18m13h 38m

Solar UV radiation in Salta, Argentina

Salta experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 16 - 17, which corresponds to the Extreme category of sun exposure. May, June and July are in the High / Very High exposure category. In these months, the maximum values of the UV index do not exceed 9. For more detailed information, check out our hourly Salta UV Index data.

Average daily maximum UV levels by month for Salta. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)171615129681012151617