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Monthly climate in Chivilcoy, Argentina

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Chivilcoy features a humid subtropical climate (Cfa). Temperatures typically range between 10 °C (49 °F) and 24 °C (75 °F) through the year, but rarely can drop to -5 °C (24 °F) or can rise to as high as 41 °C (107 °F). The average annual precipitation amounts to about 847 mm (33.3 inches) and receives 79 rainy days on the 1 mm (0.04 inches) threshold annually. Chivilcoy enjoys an average of 3385 hours of sunshine throughout the year, and daylight varies from 9 hours 49 minutes to 14 hours 26 minutes per day.

Monthly average temperatures in Chivilcoy, Argentina

The warmest months in Chivilcoy are January, February and December, with daily mean temperatures ranging from 22 to 24 °C (73 - 75 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 10 to 11 °C (49 - 53 °F) throughout the day. On average each year, Chivilcoy experiences 125 days above 25 °C (77.0 °F) and 6 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Chivilcoy. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum41°C
(107°F)		36°C
(97°F)		34°C
(94°F)		32°C
(90°F)		28°C
(82°F)		25°C
(77°F)		25°C
(77°F)		28°C
(82°F)		31°C
(89°F)		35°C
(95°F)		37°C
(98°F)		38°C
(100°F)
Mean maximum36°C
(98°F)		35°C
(95°F)		32°C
(90°F)		30°C
(86°F)		26°C
(79°F)		21°C
(70°F)		22°C
(72°F)		26°C
(79°F)		28°C
(83°F)		31°C
(88°F)		34°C
(93°F)		36°C
(96°F)
Average high30°C
(86°F)		28°C
(83°F)		26°C
(79°F)		23°C
(74°F)		19°C
(66°F)		16°C
(61°F)		15°C
(59°F)		18°C
(64°F)		20°C
(67°F)		22°C
(72°F)		26°C
(79°F)		29°C
(84°F)
Daily mean24°C
(75°F)		22°C
(73°F)		20°C
(69°F)		18°C
(64°F)		13°C
(56°F)		11°C
(51°F)		10°C
(49°F)		11°C
(53°F)		14°C
(57°F)		16°C
(62°F)		20°C
(68°F)		23°C
(73°F)
Average low18°C
(65°F)		17°C
(62°F)		15°C
(59°F)		13°C
(55°F)		9°C
(48°F)		6°C
(43°F)		5°C
(42°F)		6°C
(43°F)		8°C
(47°F)		11°C
(51°F)		14°C
(57°F)		16°C
(61°F)
Mean minimum10°C
(51°F)		9°C
(48°F)		8°C
(47°F)		5°C
(42°F)		2°C
(35°F)		-2°C
(28°F)		-3°C
(27°F)		-1°C
(30°F)		2°C
(36°F)		4°C
(39°F)		6°C
(44°F)		9°C
(49°F)
Minimum9°C
(49°F)		7°C
(46°F)		5°C
(42°F)		1°C
(35°F)		-1°C
(30°F)		-4°C
(24°F)		-5°C
(24°F)		-3°C
(27°F)		-1°C
(30°F)		2°C
(36°F)		5°C
(41°F)		7°C
(45°F)

Compare climate in Chivilcoy with other places

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

Monthly average precipitation in Chivilcoy, Argentina

Chivilcoy usually has the most precipitation in April, September and December, with an average of 7 rainy days and 93 mm (3.7 inches) of precipitation per month. The driest months in Chivilcoy are June, July and August. On average, 39 mm (1.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Chivilcoy. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)75 (2.9)71 (2.8)69 (2.7)107 (4.2)75 (3.0)41 (1.6)35 (1.4)40 (1.6)87 (3.4)78 (3.1)82 (3.2)86 (3.4)
Average precipitation days (≥ 1 mm)868865536888

Monthly sunshine hours in Chivilcoy, Argentina

The sunniest months in Chivilcoy are February, November and December, when the sun shines an average of 11 hours 24 minutes a day. Least sunny months in Chivilcoy: May, June and July receive an average of 7 hours 12 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Chivilcoy. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours292321314244233212216268263311336369
Mean daily daylight hours14h 10m13h 19m12h 14m11h 9m10h 15m9h 49m10h 3m10h 51m11h 53m12h 58m13h 57m14h 26m

Solar UV radiation in Chivilcoy, Argentina

Chivilcoy 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 Chivilcoy UV Index data.

Average daily maximum UV levels by month for Chivilcoy. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)141311753468101314