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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 humid subtropical climate (Cwa). Temperatures typically range between 12 °C (54 °F) and 25 °C (77 °F) through the year, but rarely can drop to -3 °C (26 °F) or can rise to as high as 40 °C (105 °F). The average annual precipitation amounts to about 1516 mm (59.7 inches) and receives 141 rainy days on the 1 mm (0.04 inches) threshold annually. Libertador General San Martin enjoys an average of 3594 hours of sunshine throughout the year, and daylight varies from 10 hours 40 minutes to 13 hours 33 minutes per day.

Monthly average temperatures in Libertador General San Martin, Argentina

The warmest months in Libertador General San Martin are January, November and December, with daily mean temperatures ranging from 24 to 25 °C (75 - 77 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 12 to 15 °C (54 - 59 °F) throughout the day. On average each year, Libertador General San Martin experiences 182 days above 25 °C (77.0 °F) and 2 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
Maximum40°C
(104°F)		36°C
(97°F)		36°C
(98°F)		31°C
(87°F)		31°C
(87°F)		28°C
(82°F)		30°C
(86°F)		35°C
(95°F)		39°C
(103°F)		40°C
(105°F)		38°C
(101°F)		38°C
(101°F)
Mean maximum37°C
(98°F)		34°C
(93°F)		34°C
(93°F)		29°C
(85°F)		28°C
(82°F)		25°C
(76°F)		28°C
(83°F)		33°C
(92°F)		36°C
(98°F)		38°C
(101°F)		36°C
(98°F)		36°C
(98°F)
Average high30°C
(87°F)		28°C
(83°F)		27°C
(81°F)		24°C
(76°F)		21°C
(70°F)		19°C
(66°F)		19°C
(67°F)		24°C
(75°F)		27°C
(80°F)		29°C
(84°F)		30°C
(85°F)		30°C
(86°F)
Daily mean25°C
(77°F)		23°C
(75°F)		22°C
(72°F)		20°C
(68°F)		16°C
(60°F)		12°C
(54°F)		12°C
(54°F)		15°C
(59°F)		19°C
(67°F)		22°C
(72°F)		24°C
(75°F)		24°C
(76°F)
Average low20°C
(68°F)		19°C
(67°F)		18°C
(65°F)		15°C
(60°F)		11°C
(51°F)		7°C
(44°F)		6°C
(43°F)		7°C
(45°F)		12°C
(54°F)		16°C
(60°F)		18°C
(65°F)		19°C
(67°F)
Mean minimum16°C
(62°F)		15°C
(59°F)		13°C
(56°F)		9°C
(48°F)		3°C
(38°F)		2°C
(35°F)		-2°C
(29°F)		1°C
(35°F)		4°C
(40°F)		9°C
(49°F)		13°C
(55°F)		15°C
(58°F)
Minimum14°C
(58°F)		14°C
(58°F)		10°C
(50°F)		7°C
(45°F)		1°C
(34°F)		-3°C
(28°F)		-3°C
(26°F)		-0°C
(32°F)		3°C
(37°F)		7°C
(46°F)		11°C
(51°F)		12°C
(54°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, March and April, with an average of 17 rainy days and 224 mm (8.8 inches) of precipitation per month. The driest months in Libertador General San Martin are July, August and September. On average, 24 mm (0.9 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)201 (7.9)197 (7.7)240 (9.5)232 (9.1)100 (3.9)39 (1.5)32 (1.3)16 (0.6)22 (0.9)97 (3.8)139 (5.5)201 (7.9)
Average precipitation days (≥ 1 mm)14151920148725101314

Monthly sunshine hours in Libertador General San Martin, Argentina

The sunniest months in Libertador General San Martin are August, September and October, when the sun shines an average of 10 hours 30 minutes a day. Least sunny months in Libertador General San Martin: January, February and April receive an average of 9 hours 3 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 hours261273290279299289306324315326308315
Mean daily daylight hours13h 24m12h 51m12h 11m11h 30m10h 56m10h 40m10h 49m11h 18m11h 57m12h 39m13h 15m13h 33m

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 16 - 16, 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 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)16151411978912141616