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Monthly climate in San Lorenzo, Argentina

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Lorenzo features a humid subtropical climate (Cfa). Temperatures typically range between 15 °C (59 °F) and 27 °C (82 °F) through the year, but rarely can drop to -1 °C (31 °F) or can rise to as high as 43 °C (110 °F). The average annual precipitation amounts to about 1213 mm (47.8 inches) and receives 89 rainy days on the 1 mm (0.04 inches) threshold annually. San Lorenzo enjoys an average of 3413 hours of sunshine throughout the year, and daylight varies from 10 hours 22 minutes to 13 hours 52 minutes per day.

Monthly average temperatures in San Lorenzo, Argentina

The warmest months in San Lorenzo are January, February and December, with daily mean temperatures ranging from 26 to 27 °C (79 - 82 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 15 to 17 °C (59 - 63 °F) throughout the day. On average each year, San Lorenzo experiences 214 days above 25 °C (77.0 °F) and 1 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in San Lorenzo. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum43°C
(109°F)		42°C
(108°F)		41°C
(106°F)		35°C
(96°F)		32°C
(89°F)		32°C
(90°F)		33°C
(92°F)		38°C
(101°F)		41°C
(105°F)		43°C
(110°F)		41°C
(105°F)		40°C
(104°F)
Mean maximum38°C
(101°F)		37°C
(99°F)		37°C
(98°F)		33°C
(92°F)		29°C
(85°F)		27°C
(82°F)		31°C
(88°F)		35°C
(95°F)		37°C
(100°F)		38°C
(101°F)		37°C
(99°F)		38°C
(101°F)
Average high33°C
(91°F)		32°C
(90°F)		30°C
(87°F)		27°C
(81°F)		23°C
(73°F)		21°C
(70°F)		21°C
(70°F)		24°C
(76°F)		26°C
(79°F)		28°C
(83°F)		30°C
(87°F)		32°C
(90°F)
Daily mean27°C
(82°F)		26°C
(80°F)		24°C
(76°F)		21°C
(71°F)		18°C
(64°F)		16°C
(60°F)		15°C
(59°F)		17°C
(63°F)		20°C
(68°F)		22°C
(72°F)		24°C
(76°F)		26°C
(79°F)
Average low22°C
(73°F)		21°C
(70°F)		19°C
(67°F)		17°C
(63°F)		14°C
(57°F)		11°C
(53°F)		10°C
(51°F)		11°C
(52°F)		14°C
(58°F)		16°C
(62°F)		18°C
(65°F)		20°C
(68°F)
Mean minimum16°C
(61°F)		14°C
(58°F)		13°C
(56°F)		10°C
(51°F)		7°C
(44°F)		2°C
(37°F)		0°C
(33°F)		2°C
(36°F)		7°C
(46°F)		10°C
(50°F)		12°C
(55°F)		14°C
(58°F)
Minimum14°C
(57°F)		12°C
(55°F)		11°C
(51°F)		7°C
(45°F)		4°C
(39°F)		1°C
(34°F)		-1°C
(31°F)		-1°C
(31°F)		5°C
(42°F)		9°C
(48°F)		9°C
(48°F)		12°C
(54°F)

Compare climate in San Lorenzo with other places

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

Monthly average precipitation in San Lorenzo, Argentina

San Lorenzo usually has the most precipitation in January, April and November, with an average of 8 rainy days and 148 mm (5.8 inches) of precipitation per month. The driest months in San Lorenzo are June, July and August. On average, 48 mm (1.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Lorenzo. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)166 (6.5)68 (2.7)131 (5.2)136 (5.4)125 (4.9)61 (2.4)39 (1.5)42 (1.7)98 (3.9)115 (4.5)142 (5.6)90 (3.5)
Average precipitation days (≥ 1 mm)1078896549986

Monthly sunshine hours in San Lorenzo, Argentina

The sunniest months in San Lorenzo are February, November and December, when the sun shines an average of 11 hours 16 minutes a day. Least sunny months in San Lorenzo: May, June and July receive an average of 7 hours 27 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Lorenzo. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours271315313271230217238283277296324373
Mean daily daylight hours13h 40m13h 1m12h 12m11h 22m10h 41m10h 22m10h 32m11h 8m11h 55m12h 46m13h 30m13h 52m

Solar UV radiation in San Lorenzo, Argentina

San Lorenzo 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 San Lorenzo UV Index data.

Average daily maximum UV levels by month for San Lorenzo. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)15141210655710121414