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Monthly climate in Santa Rosa, Argentina

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Santa Rosa features a cold desert climate (BWk). Temperatures typically range between 8 °C (47 °F) and 26 °C (80 °F) through the year, but rarely can drop to -4 °C (25 °F) or can rise to as high as 42 °C (107 °F). The average annual precipitation amounts to about 366 mm (14.4 inches) and receives 57 rainy days on the 1 mm (0.04 inches) threshold annually. Santa Rosa enjoys an average of 3776 hours of sunshine throughout the year, and daylight varies from 9 hours 58 minutes to 14 hours 17 minutes per day.

Monthly average temperatures in Santa Rosa, Argentina

The warmest months in Santa Rosa are January, February and December, with daily mean temperatures ranging from 24 to 26 °C (76 - 80 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 8 to 11 °C (47 - 53 °F) throughout the day. On average each year, Santa Rosa experiences 168 days above 25 °C (77.0 °F) and 11 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Santa Rosa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum42°C
(107°F)		41°C
(106°F)		37°C
(99°F)		32°C
(90°F)		28°C
(83°F)		26°C
(79°F)		23°C
(74°F)		31°C
(88°F)		36°C
(96°F)		39°C
(103°F)		41°C
(105°F)		42°C
(107°F)
Mean maximum40°C
(104°F)		38°C
(102°F)		36°C
(97°F)		30°C
(87°F)		25°C
(77°F)		21°C
(70°F)		22°C
(72°F)		27°C
(82°F)		33°C
(92°F)		36°C
(96°F)		38°C
(101°F)		41°C
(105°F)
Average high33°C
(92°F)		31°C
(88°F)		29°C
(84°F)		25°C
(77°F)		19°C
(67°F)		15°C
(60°F)		15°C
(60°F)		20°C
(68°F)		23°C
(74°F)		26°C
(80°F)		30°C
(87°F)		33°C
(91°F)
Daily mean26°C
(80°F)		24°C
(76°F)		22°C
(71°F)		18°C
(64°F)		13°C
(55°F)		9°C
(48°F)		8°C
(47°F)		11°C
(53°F)		16°C
(61°F)		19°C
(67°F)		23°C
(74°F)		25°C
(78°F)
Average low20°C
(68°F)		18°C
(65°F)		15°C
(60°F)		12°C
(54°F)		7°C
(46°F)		3°C
(38°F)		2°C
(37°F)		5°C
(41°F)		9°C
(49°F)		12°C
(54°F)		16°C
(60°F)		18°C
(65°F)
Mean minimum13°C
(55°F)		12°C
(53°F)		7°C
(46°F)		6°C
(43°F)		2°C
(35°F)		-2°C
(29°F)		-2°C
(28°F)		-1°C
(30°F)		2°C
(35°F)		3°C
(37°F)		9°C
(49°F)		12°C
(54°F)
Minimum8°C
(47°F)		10°C
(50°F)		4°C
(39°F)		2°C
(36°F)		-1°C
(31°F)		-4°C
(25°F)		-4°C
(25°F)		-4°C
(25°F)		-2°C
(28°F)		-0°C
(32°F)		6°C
(42°F)		12°C
(53°F)

Compare climate in Santa Rosa with other places

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

Monthly average precipitation in Santa Rosa, Argentina

Santa Rosa usually has the most precipitation in January, February and March, with an average of 8 rainy days and 55 mm (2.2 inches) of precipitation per month. The driest months in Santa Rosa are June, July and August. On average, 6 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Santa Rosa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)58 (2.3)60 (2.4)48 (1.9)33 (1.3)29 (1.1)8 (0.3)7 (0.3)4 (0.1)9 (0.4)25 (1.0)46 (1.8)40 (1.6)
Average precipitation days (≥ 1 mm)987532111488

Monthly sunshine hours in Santa Rosa, Argentina

The sunniest months in Santa Rosa are October, November and December, when the sun shines an average of 12 hours 7 minutes a day. Least sunny months in Santa Rosa: April, May and June receive an average of 8 hours 44 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Santa Rosa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours310324322274264256274313318354370391
Mean daily daylight hours14h 2m13h 14m12h 14m11h 12m10h 22m9h 58m10h 11m10h 55m11h 54m12h 55m13h 50m14h 17m

Solar UV radiation in Santa Rosa, Argentina

Santa Rosa 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 exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Santa Rosa UV Index data.

Average daily maximum UV levels by month for Santa Rosa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)151312854468121415