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Monthly climate in San Jose, Argentina

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Jose features a humid subtropical climate (Cfa). Temperatures typically range between 16 °C (60 °F) and 27 °C (80 °F) through the year, but rarely can drop to -1 °C (30 °F) or can rise to as high as 40 °C (105 °F). The average annual precipitation amounts to about 1495 mm (58.9 inches) and receives 115 rainy days on the 1 mm (0.04 inches) threshold annually. San Jose enjoys an average of 3386 hours of sunshine throughout the year, and daylight varies from 10 hours 23 minutes to 13 hours 51 minutes per day.

Monthly average temperatures in San Jose, Argentina

The warmest months in San Jose are January, February and December, with daily mean temperatures ranging from 26 to 27 °C (78 - 80 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 16 to 17 °C (60 - 63 °F) throughout the day. On average each year, San Jose experiences 218 days above 25 °C (77.0 °F) and 0 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 Jose. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum40°C
(105°F)		40°C
(104°F)		38°C
(101°F)		34°C
(93°F)		32°C
(90°F)		30°C
(87°F)		31°C
(88°F)		36°C
(97°F)		36°C
(98°F)		39°C
(102°F)		38°C
(100°F)		39°C
(102°F)
Mean maximum37°C
(98°F)		37°C
(99°F)		36°C
(97°F)		32°C
(90°F)		30°C
(86°F)		27°C
(80°F)		30°C
(86°F)		33°C
(92°F)		35°C
(96°F)		36°C
(97°F)		36°C
(97°F)		37°C
(100°F)
Average high32°C
(90°F)		31°C
(89°F)		30°C
(86°F)		27°C
(81°F)		23°C
(73°F)		21°C
(71°F)		21°C
(70°F)		23°C
(74°F)		26°C
(78°F)		28°C
(82°F)		30°C
(86°F)		32°C
(89°F)
Daily mean27°C
(80°F)		26°C
(78°F)		24°C
(76°F)		21°C
(71°F)		18°C
(64°F)		16°C
(62°F)		16°C
(60°F)		17°C
(63°F)		20°C
(68°F)		22°C
(72°F)		24°C
(75°F)		26°C
(79°F)
Average low22°C
(72°F)		20°C
(69°F)		19°C
(67°F)		17°C
(63°F)		14°C
(57°F)		13°C
(55°F)		11°C
(53°F)		12°C
(55°F)		15°C
(60°F)		17°C
(63°F)		18°C
(65°F)		20°C
(68°F)
Mean minimum17°C
(63°F)		15°C
(58°F)		14°C
(57°F)		11°C
(52°F)		7°C
(45°F)		3°C
(38°F)		1°C
(34°F)		3°C
(38°F)		9°C
(48°F)		11°C
(52°F)		13°C
(56°F)		15°C
(59°F)
Minimum15°C
(59°F)		12°C
(54°F)		12°C
(55°F)		7°C
(45°F)		5°C
(42°F)		1°C
(35°F)		-1°C
(31°F)		-1°C
(30°F)		6°C
(44°F)		9°C
(49°F)		11°C
(51°F)		12°C
(54°F)

Compare climate in San Jose with other places

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

Monthly average precipitation in San Jose, Argentina

San Jose usually has the most precipitation in January, May and October, with an average of 12 rainy days and 172 mm (6.8 inches) of precipitation per month. The driest months in San Jose are July, August and December. On average, 90 mm (3.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Jose. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)168 (6.6)106 (4.2)135 (5.3)123 (4.8)197 (7.8)99 (3.9)96 (3.8)80 (3.2)103 (4.1)152 (6.0)143 (5.6)93 (3.7)
Average precipitation days (≥ 1 mm)131111712876101299

Monthly sunshine hours in San Jose, Argentina

The sunniest months in San Jose are March, November and December, when the sun shines an average of 10 hours 57 minutes a day. Least sunny months in San Jose: May, June and July receive an average of 7 hours 36 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Jose. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours265306313272235217245280264289318375
Mean daily daylight hours13h 39m13h 1m12h 12m11h 23m10h 43m10h 23m10h 34m11h 9m11h 56m12h 45m13h 29m13h 51m

Solar UV radiation in San Jose, Argentina

San Jose 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 Jose UV Index data.

Average daily maximum UV levels by month for San Jose. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)15141210656710131414