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Monthly climate in Rosario, Santa Fe, Argentina

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Rosario features a humid subtropical climate (Cfa).Temperatures typically range between 11 °C (52 °F) and 25 °C (77 °F) through the year, but rarely can drop to -4 °C (24 °F) or can rise to as high as 41 °C (105 °F).The average annual precipitation amounts to about 827 mm (32.6 inches) and receives 74 rainy days on the 1 mm (0.04 inches) threshold annually.Rosario enjoys an average of 3458 hours of sunshine throughout the year, and daylight varies from 9 hours 59 minutes to 14 hours 16 minutes per day.

Monthly average temperatures in Rosario, Santa Fe, Argentina §

The warmest months in Rosario are January, February and December, with daily mean temperatures ranging from 24 to 25 °C (75 - 77 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 11 to 13 °C (52 - 55 °F) throughout the day. On average each year, Rosario experiences 153 days above 25 °C (77.0 °F) and 4 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Rosario, Santa Fe, Argentina.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 41°C
(105°F)		 36°C
(98°F)		 35°C
(95°F)		 33°C
(91°F)		 28°C
(83°F)		 26°C
(79°F)		 27°C
(80°F)		 31°C
(88°F)		 33°C
(92°F)		 37°C
(100°F)		 37°C
(98°F)		 38°C
(100°F)
Mean maximum 36°C
(97°F)		 35°C
(95°F)		 33°C
(92°F)		 31°C
(87°F)		 26°C
(80°F)		 22°C
(72°F)		 25°C
(78°F)		 28°C
(83°F)		 31°C
(88°F)		 34°C
(93°F)		 35°C
(96°F)		 36°C
(97°F)
Average high 30°C
(87°F)		 29°C
(85°F)		 27°C
(81°F)		 25°C
(77°F)		 20°C
(68°F)		 17°C
(63°F)		 16°C
(61°F)		 19°C
(67°F)		 22°C
(71°F)		 24°C
(75°F)		 28°C
(82°F)		 30°C
(86°F)
Daily mean 25°C
(77°F)		 24°C
(75°F)		 21°C
(71°F)		 19°C
(66°F)		 14°C
(58°F)		 12°C
(53°F)		 11°C
(52°F)		 13°C
(55°F)		 16°C
(60°F)		 18°C
(65°F)		 22°C
(71°F)		 24°C
(75°F)
Average low 19°C
(67°F)		 18°C
(65°F)		 16°C
(62°F)		 14°C
(57°F)		 10°C
(50°F)		 7°C
(45°F)		 6°C
(43°F)		 7°C
(45°F)		 10°C
(50°F)		 12°C
(55°F)		 16°C
(60°F)		 17°C
(64°F)
Mean minimum 13°C
(56°F)		 11°C
(52°F)		 9°C
(48°F)		 6°C
(44°F)		 3°C
(37°F)		 -1°C
(31°F)		 -2°C
(28°F)		 -0°C
(32°F)		 3°C
(38°F)		 6°C
(43°F)		 9°C
(49°F)		 12°C
(53°F)
Minimum 11°C
(53°F)		 9°C
(48°F)		 7°C
(44°F)		 3°C
(37°F)		 -1°C
(30°F)		 -2°C
(28°F)		 -4°C
(24°F)		 -2°C
(29°F)		 -1°C
(31°F)		 4°C
(40°F)		 7°C
(45°F)		 10°C
(50°F)

Compare climate in Rosario with other places

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

Monthly average precipitation in Rosario, Santa Fe, Argentina §

Rosario usually has the most precipitation in January, March and April, with an average of 6 rainy days and 110 mm (4.3 inches) of precipitation per month.The driest months in Rosario are June, July and August. On average, 31 mm (1.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Rosario, Santa Fe, Argentina.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 105 (4.1) 63 (2.5) 93 (3.6) 131 (5.2) 71 (2.8) 29 (1.1) 29 (1.2) 35 (1.4) 58 (2.3) 63 (2.5) 81 (3.2) 69 (2.7)
Average precipitation days (≥ 1 mm) 7 7 6 7 6 3 6 4 6 8 6 8

Monthly sunshine hours in Rosario, Santa Fe, Argentina §

The sunniest months in Rosario are February, November and December, when the sun shines an average of 11 hours 37 minutes a day.Least sunny months in Rosario: May, June and July receive an average of 7 hours 23 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Rosario, Santa Fe, Argentina.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 293 323 314 260 231 221 226 280 273 309 344 377
Mean daily daylight hours 14h 1m 13h 14m 12h 14m 11h 13m 10h 23m 9h 59m 10h 12m 10h 56m 11h 54m 12h 54m 13h 49m 14h 16m

Solar UV radiation in Rosario, Santa Fe, Argentina §

Rosario 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 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 Rosario UV Index data.

Average daily maximum UV levels by month for Rosario, Santa Fe, Argentina.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 14 13 11 8 5 4 4 6 8 11 13 14