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Monthly climate in San Javier, Argentina

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Javier features a humid subtropical climate (Cfa). Temperatures typically range between 13 °C (55 °F) and 26 °C (79 °F) through the year, but rarely can drop to -2 °C (28 °F) or can rise to as high as 41 °C (106 °F). The average annual precipitation amounts to about 1110 mm (43.7 inches) and receives 81 rainy days on the 1 mm (0.04 inches) threshold annually. San Javier enjoys an average of 3426 hours of sunshine throughout the year, and daylight varies from 10 hours 11 minutes to 14 hours 4 minutes per day.

Monthly average temperatures in San Javier, Argentina

The warmest months in San Javier are January, February and December, with daily mean temperatures ranging from 25 to 26 °C (77 - 79 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 13 to 14 °C (55 - 58 °F) throughout the day. On average each year, San Javier experiences 180 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 San Javier. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum41°C
(106°F)		39°C
(102°F)		38°C
(100°F)		35°C
(95°F)		31°C
(87°F)		28°C
(82°F)		30°C
(86°F)		34°C
(93°F)		35°C
(96°F)		38°C
(101°F)		39°C
(103°F)		39°C
(102°F)
Mean maximum37°C
(99°F)		36°C
(97°F)		35°C
(94°F)		32°C
(90°F)		28°C
(82°F)		25°C
(77°F)		28°C
(83°F)		31°C
(88°F)		33°C
(92°F)		35°C
(95°F)		37°C
(99°F)		37°C
(99°F)
Average high31°C
(89°F)		31°C
(87°F)		28°C
(83°F)		26°C
(79°F)		21°C
(70°F)		19°C
(66°F)		18°C
(65°F)		21°C
(70°F)		23°C
(73°F)		26°C
(78°F)		29°C
(84°F)		31°C
(88°F)
Daily mean26°C
(79°F)		25°C
(77°F)		23°C
(73°F)		20°C
(69°F)		16°C
(61°F)		13°C
(56°F)		13°C
(55°F)		14°C
(58°F)		17°C
(63°F)		20°C
(68°F)		23°C
(73°F)		25°C
(77°F)
Average low21°C
(70°F)		19°C
(67°F)		18°C
(64°F)		16°C
(60°F)		12°C
(54°F)		9°C
(49°F)		8°C
(47°F)		9°C
(48°F)		12°C
(54°F)		14°C
(58°F)		17°C
(63°F)		19°C
(66°F)
Mean minimum15°C
(59°F)		12°C
(55°F)		12°C
(53°F)		9°C
(48°F)		5°C
(41°F)		0°C
(33°F)		-1°C
(31°F)		1°C
(34°F)		5°C
(41°F)		7°C
(45°F)		11°C
(52°F)		13°C
(56°F)
Minimum14°C
(57°F)		11°C
(51°F)		10°C
(50°F)		5°C
(40°F)		3°C
(38°F)		-1°C
(30°F)		-2°C
(28°F)		-1°C
(30°F)		3°C
(37°F)		5°C
(41°F)		10°C
(49°F)		11°C
(52°F)

Compare climate in San Javier with other places

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

Monthly average precipitation in San Javier, Argentina

San Javier usually has the most precipitation in January, February and May, with an average of 8 rainy days and 122 mm (4.8 inches) of precipitation per month. The driest months in San Javier are June, July and December. On average, 67 mm (2.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Javier. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)114 (4.5)109 (4.3)106 (4.2)84 (3.3)144 (5.7)77 (3.1)48 (1.9)79 (3.1)82 (3.2)106 (4.2)84 (3.3)76 (3.0)
Average precipitation days (≥ 1 mm)977686558866

Monthly sunshine hours in San Javier, Argentina

The sunniest months in San Javier are February, November and December, when the sun shines an average of 11 hours 24 minutes a day. Least sunny months in San Javier: May, June and July receive an average of 7 hours 19 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Javier. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours283316307280227219227280266306335375
Mean daily daylight hours13h 50m13h 7m12h 13m11h 18m10h 32m10h 11m10h 22m11h 2m11h 55m12h 50m13h 39m14h 4m

Solar UV radiation in San Javier, Argentina

San Javier 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 Javier UV Index data.

Average daily maximum UV levels by month for San Javier. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)151312964579121415