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Monthly climate in Rio Mayo, Argentina

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Rio Mayo features a oceanic climate (Cfb). Temperatures typically range between 3 °C (38 °F) and 18 °C (64 °F) through the year, but rarely can drop to -15 °C (6 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 247 mm (9.7 inches) and receives 53 rainy days on the 1 mm (0.04 inches) threshold annually. Rio Mayo enjoys an average of 3519 hours of sunshine throughout the year, and daylight varies from 8 hours 43 minutes to 15 hours 37 minutes per day.

Monthly average temperatures in Rio Mayo, Argentina

The warmest months in Rio Mayo are January, February and December, with daily mean temperatures ranging from 16 to 18 °C (62 - 64 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 3 to 6 °C (38 - 42 °F) throughout the day. On average each year, Rio Mayo experiences 40 days above 25 °C (77.0 °F) and 43 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Rio Mayo. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum32°C
(91°F)		37°C
(99°F)		34°C
(93°F)		26°C
(78°F)		19°C
(67°F)		14°C
(58°F)		16°C
(60°F)		20°C
(68°F)		23°C
(74°F)		27°C
(81°F)		31°C
(87°F)		34°C
(94°F)
Mean maximum31°C
(88°F)		34°C
(93°F)		29°C
(85°F)		23°C
(75°F)		18°C
(65°F)		12°C
(54°F)		12°C
(54°F)		17°C
(62°F)		21°C
(70°F)		24°C
(76°F)		28°C
(83°F)		32°C
(90°F)
Average high23°C
(73°F)		24°C
(76°F)		21°C
(69°F)		16°C
(61°F)		12°C
(53°F)		7°C
(45°F)		7°C
(45°F)		11°C
(51°F)		14°C
(57°F)		16°C
(62°F)		20°C
(69°F)		23°C
(74°F)
Daily mean16°C
(62°F)		18°C
(64°F)		14°C
(58°F)		11°C
(51°F)		7°C
(44°F)		3°C
(38°F)		3°C
(38°F)		6°C
(42°F)		8°C
(46°F)		10°C
(51°F)		14°C
(58°F)		17°C
(62°F)
Average low10°C
(51°F)		11°C
(53°F)		9°C
(49°F)		6°C
(43°F)		3°C
(37°F)		-0°C
(32°F)		0°C
(32°F)		2°C
(35°F)		3°C
(38°F)		5°C
(41°F)		8°C
(46°F)		10°C
(51°F)
Mean minimum4°C
(40°F)		6°C
(42°F)		2°C
(37°F)		0°C
(33°F)		-4°C
(25°F)		-9°C
(15°F)		-7°C
(19°F)		-3°C
(26°F)		-3°C
(26°F)		-1°C
(30°F)		3°C
(37°F)		4°C
(40°F)
Minimum3°C
(38°F)		4°C
(40°F)		-1°C
(30°F)		-3°C
(26°F)		-5°C
(22°F)		-15°C
(6°F)		-13°C
(10°F)		-5°C
(24°F)		-5°C
(23°F)		-5°C
(24°F)		1°C
(35°F)		3°C
(38°F)

Compare climate in Rio Mayo with other places

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

Monthly average precipitation in Rio Mayo, Argentina

Rio Mayo usually has the most precipitation in March, April and June, with an average of 6 rainy days and 33 mm (1.3 inches) of precipitation per month. The driest months in Rio Mayo are January, February and December. On average, 10 mm (0.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Rio Mayo. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)11 (0.4)10 (0.4)28 (1.1)37 (1.4)26 (1.0)36 (1.4)27 (1.1)20 (0.8)14 (0.6)16 (0.6)14 (0.5)8 (0.3)
Average precipitation days (≥ 1 mm)224668654442

Monthly sunshine hours in Rio Mayo, Argentina

The sunniest months in Rio Mayo are October, November and December, when the sun shines an average of 12 hours 24 minutes a day. Least sunny months in Rio Mayo: May, June and July receive an average of 6 hours 31 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Rio Mayo. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours325338316257216185197250289353377409
Mean daily daylight hours15h 12m13h 55m12h 19m10h 43m9h 23m8h 43m9h 4m10h 16m11h 48m13h 24m14h 51m15h 37m

Solar UV radiation in Rio Mayo, Argentina

Rio Mayo experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 11 - 13, 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 Rio Mayo UV Index data.

Average daily maximum UV levels by month for Rio Mayo. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)1311853224681113