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Monthly climate in Libertador General San Martin, Argentina

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Libertador General San Martin features a hot semi-arid climate (BSh). Temperatures typically range between 8 °C (46 °F) and 22 °C (72 °F) through the year, but rarely can drop to -6 °C (21 °F) or can rise to as high as 38 °C (101 °F). The average annual precipitation amounts to about 829 mm (32.6 inches) and receives 101 rainy days on the 1 mm (0.04 inches) threshold annually. Libertador General San Martin enjoys an average of 3816 hours of sunshine throughout the year, and daylight varies from 10 hours 2 minutes to 14 hours 13 minutes per day.

Monthly average temperatures in Libertador General San Martin, Argentina

The warmest months in Libertador General San Martin are January, February and December, with daily mean temperatures ranging from 20 to 22 °C (69 - 72 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 8 to 11 °C (46 - 51 °F) throughout the day. On average each year, Libertador General San Martin experiences 104 days above 25 °C (77.0 °F) and 10 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Libertador General San Martin. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum37°C
(99°F)		33°C
(92°F)		31°C
(89°F)		27°C
(82°F)		27°C
(80°F)		21°C
(69°F)		23°C
(73°F)		26°C
(79°F)		32°C
(89°F)		36°C
(96°F)		34°C
(93°F)		38°C
(101°F)
Mean maximum33°C
(92°F)		31°C
(89°F)		29°C
(85°F)		26°C
(79°F)		23°C
(73°F)		18°C
(64°F)		21°C
(69°F)		25°C
(77°F)		29°C
(85°F)		33°C
(91°F)		33°C
(91°F)		35°C
(96°F)
Average high28°C
(82°F)		26°C
(79°F)		24°C
(75°F)		21°C
(70°F)		17°C
(63°F)		14°C
(57°F)		14°C
(57°F)		17°C
(63°F)		20°C
(68°F)		23°C
(74°F)		26°C
(78°F)		28°C
(82°F)
Daily mean22°C
(72°F)		20°C
(69°F)		18°C
(65°F)		16°C
(61°F)		12°C
(53°F)		8°C
(47°F)		8°C
(46°F)		11°C
(51°F)		14°C
(57°F)		17°C
(62°F)		19°C
(67°F)		22°C
(71°F)
Average low17°C
(63°F)		16°C
(61°F)		14°C
(57°F)		12°C
(53°F)		8°C
(46°F)		4°C
(39°F)		3°C
(38°F)		5°C
(42°F)		8°C
(47°F)		11°C
(52°F)		14°C
(57°F)		16°C
(61°F)
Mean minimum12°C
(53°F)		9°C
(49°F)		7°C
(44°F)		6°C
(43°F)		1°C
(34°F)		-2°C
(29°F)		-4°C
(26°F)		-2°C
(28°F)		1°C
(34°F)		3°C
(39°F)		8°C
(47°F)		10°C
(51°F)
Minimum8°C
(46°F)		7°C
(44°F)		4°C
(39°F)		4°C
(40°F)		-2°C
(29°F)		-5°C
(23°F)		-6°C
(21°F)		-6°C
(21°F)		-1°C
(31°F)		2°C
(36°F)		6°C
(43°F)		8°C
(46°F)

Compare climate in Libertador General San Martin with other places

Compare temperature, precipitation, sunshine, UV index in Libertador General San Martin, Argentina with other places around the world.

Monthly average precipitation in Libertador General San Martin, Argentina

Libertador General San Martin usually has the most precipitation in January, February and November, with an average of 13 rainy days and 129 mm (5.1 inches) of precipitation per month. The driest months in Libertador General San Martin are June, July and August. On average, 11 mm (0.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Libertador General San Martin. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)132 (5.2)147 (5.8)101 (4.0)92 (3.6)29 (1.1)15 (0.6)14 (0.5)4 (0.2)31 (1.2)54 (2.1)108 (4.3)102 (4.0)
Average precipitation days (≥ 1 mm)14131197341581412

Monthly sunshine hours in Libertador General San Martin, Argentina

The sunniest months in Libertador General San Martin are October, November and December, when the sun shines an average of 12 hours 3 minutes a day. Least sunny months in Libertador General San Martin: May, June and July receive an average of 8 hours 48 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Libertador General San Martin. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours313333334280266264279314319347367394
Mean daily daylight hours13h 59m13h 12m12h 14m11h 14m10h 25m10h 2m10h 15m10h 57m11h 54m12h 54m13h 46m14h 13m

Solar UV radiation in Libertador General San Martin, Argentina

Libertador General San Martin experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 14 - 15, which corresponds to the Extreme category of sun exposure. May, June and July are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly Libertador General San Martin UV Index data.

Average daily maximum UV levels by month for Libertador General San Martin. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)151312864579121415