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Monthly climate in Jose de San Martin, Argentina

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Jose de San Martin features a oceanic climate (Cfb). Temperatures typically range between 2 °C (35 °F) and 15 °C (60 °F) through the year, but rarely can drop to -15 °C (5 °F) or can rise to as high as 34 °C (94 °F). The average annual precipitation amounts to about 365 mm (14.4 inches) and receives 78 rainy days on the 1 mm (0.04 inches) threshold annually. Jose de San Martin enjoys an average of 3519 hours of sunshine throughout the year, and daylight varies from 8 hours 55 minutes to 15 hours 24 minutes per day.

Monthly average temperatures in Jose de San Martin, Argentina

The warmest months in Jose de San Martin are January, February and December, with daily mean temperatures ranging from 14 to 15 °C (58 - 60 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 2 to 3 °C (35 - 39 °F) throughout the day. On average each year, Jose de San Martin experiences 27 days above 25 °C (77.0 °F) and 77 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Jose de San Martin. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum32°C
(89°F)		34°C
(94°F)		31°C
(88°F)		23°C
(74°F)		18°C
(65°F)		13°C
(55°F)		14°C
(57°F)		16°C
(60°F)		22°C
(71°F)		25°C
(78°F)		28°C
(84°F)		32°C
(89°F)
Mean maximum30°C
(87°F)		31°C
(89°F)		28°C
(82°F)		22°C
(71°F)		15°C
(59°F)		10°C
(51°F)		10°C
(51°F)		13°C
(56°F)		19°C
(66°F)		23°C
(74°F)		26°C
(79°F)		30°C
(86°F)
Average high21°C
(70°F)		23°C
(73°F)		19°C
(66°F)		14°C
(57°F)		9°C
(49°F)		5°C
(41°F)		5°C
(42°F)		8°C
(46°F)		11°C
(52°F)		14°C
(57°F)		18°C
(64°F)		21°C
(70°F)
Daily mean14°C
(58°F)		15°C
(60°F)		12°C
(54°F)		8°C
(47°F)		5°C
(41°F)		2°C
(36°F)		2°C
(35°F)		3°C
(39°F)		5°C
(42°F)		8°C
(46°F)		11°C
(53°F)		14°C
(58°F)
Average low8°C
(46°F)		9°C
(48°F)		6°C
(44°F)		4°C
(39°F)		1°C
(34°F)		-1°C
(30°F)		-1°C
(30°F)		0°C
(32°F)		1°C
(34°F)		2°C
(36°F)		5°C
(41°F)		7°C
(45°F)
Mean minimum1°C
(35°F)		2°C
(36°F)		-1°C
(30°F)		-3°C
(27°F)		-6°C
(22°F)		-10°C
(14°F)		-8°C
(18°F)		-4°C
(25°F)		-4°C
(25°F)		-4°C
(26°F)		-0°C
(32°F)		1°C
(35°F)
Minimum-1°C
(31°F)		0°C
(33°F)		-5°C
(24°F)		-5°C
(23°F)		-10°C
(15°F)		-15°C
(5°F)		-14°C
(6°F)		-6°C
(22°F)		-5°C
(24°F)		-4°C
(24°F)		-2°C
(28°F)		1°C
(33°F)

Compare climate in Jose de San Martin with other places

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

Monthly average precipitation in Jose de San Martin, Argentina

Jose de San Martin usually has the most precipitation in April, May and June, with an average of 8 rainy days and 47 mm (1.8 inches) of precipitation per month. The driest months in Jose de San Martin are January, February and December. On average, 16 mm (0.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Jose de San Martin. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)13 (0.5)13 (0.5)30 (1.2)39 (1.5)39 (1.5)63 (2.5)36 (1.4)38 (1.5)22 (0.9)25 (1.0)26 (1.0)22 (0.9)
Average precipitation days (≥ 1 mm)4356811887765

Monthly sunshine hours in Jose de San Martin, Argentina

The sunniest months in Jose de San Martin are October, November and December, when the sun shines an average of 12 hours 3 minutes a day. Least sunny months in Jose de San Martin: May, June and July receive an average of 6 hours 36 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Jose de San Martin. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours327343325265217187203248291343363402
Mean daily daylight hours15h 1m13h 48m12h 18m10h 48m9h 32m8h 55m9h 15m10h 22m11h 49m13h 20m14h 42m15h 24m

Solar UV radiation in Jose de San Martin, Argentina

Jose de San Martin experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 13 - 14, which corresponds to the Extreme category of sun exposure. May, June and July are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Jose de San Martin UV Index data.

Average daily maximum UV levels by month for Jose de San Martin. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)1412963234791413