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Monthly climate in Rio Claro, Brazil

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Rio Claro features a humid subtropical climate (Cfa). Temperatures typically range between 18 °C (66 °F) and 25 °C (77 °F) through the year, but rarely can drop to 2 °C (36 °F) or can rise to as high as 39 °C (103 °F). The average annual precipitation amounts to about 1120 mm (44.1 inches) and receives 117 rainy days on the 1 mm (0.04 inches) threshold annually. Rio Claro enjoys an average of 3622 hours of sunshine throughout the year, and daylight varies from 10 hours 46 minutes to 13 hours 28 minutes per day.

Monthly average temperatures in Rio Claro, Brazil

The warmest months in Rio Claro are January, March and December, with daily mean temperatures ranging from 24 to 25 °C (76 - 77 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 18 to 20 °C (66 - 67 °F) throughout the day. On average each year, Rio Claro experiences 278 days above 25 °C (77.0 °F) and 0 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 Claro. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum36°C
(97°F)		37°C
(100°F)		35°C
(96°F)		32°C
(91°F)		32°C
(89°F)		30°C
(86°F)		31°C
(88°F)		33°C
(92°F)		38°C
(100°F)		39°C
(103°F)		37°C
(100°F)		36°C
(97°F)
Mean maximum34°C
(94°F)		34°C
(94°F)		34°C
(93°F)		32°C
(90°F)		31°C
(87°F)		28°C
(84°F)		30°C
(86°F)		33°C
(91°F)		36°C
(97°F)		36°C
(97°F)		35°C
(95°F)		34°C
(93°F)
Average high30°C
(86°F)		30°C
(86°F)		30°C
(87°F)		29°C
(84°F)		26°C
(79°F)		26°C
(78°F)		26°C
(79°F)		26°C
(80°F)		31°C
(88°F)		30°C
(86°F)		29°C
(85°F)		30°C
(86°F)
Daily mean25°C
(77°F)		24°C
(76°F)		25°C
(76°F)		23°C
(73°F)		20°C
(68°F)		19°C
(67°F)		18°C
(66°F)		20°C
(67°F)		23°C
(74°F)		24°C
(75°F)		23°C
(75°F)		24°C
(76°F)
Average low21°C
(70°F)		20°C
(68°F)		20°C
(68°F)		17°C
(64°F)		15°C
(59°F)		14°C
(58°F)		12°C
(54°F)		14°C
(57°F)		17°C
(63°F)		18°C
(66°F)		18°C
(65°F)		20°C
(68°F)
Mean minimum18°C
(64°F)		17°C
(63°F)		17°C
(62°F)		13°C
(56°F)		9°C
(49°F)		11°C
(52°F)		6°C
(43°F)		8°C
(47°F)		12°C
(54°F)		14°C
(57°F)		14°C
(57°F)		15°C
(60°F)
Minimum17°C
(63°F)		16°C
(61°F)		14°C
(58°F)		11°C
(52°F)		6°C
(43°F)		8°C
(47°F)		2°C
(36°F)		5°C
(41°F)		9°C
(48°F)		12°C
(55°F)		12°C
(53°F)		14°C
(57°F)

Compare climate in Rio Claro with other places

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

Monthly average precipitation in Rio Claro, Brazil

Rio Claro usually has the most precipitation in January, February and December, with an average of 17 rainy days and 183 mm (7.2 inches) of precipitation per month. The driest months in Rio Claro are June, July and September. On average, 22 mm (0.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Rio Claro. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)207 (8.1)179 (7.0)112 (4.4)53 (2.1)38 (1.5)21 (0.8)7 (0.3)41 (1.6)38 (1.5)110 (4.3)150 (5.9)164 (6.5)
Average precipitation days (≥ 1 mm)171615644155131318

Monthly sunshine hours in Rio Claro, Brazil

The sunniest months in Rio Claro are March, November and December, when the sun shines an average of 10 hours 32 minutes a day. Least sunny months in Rio Claro: January, February and June receive an average of 9 hours 2 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Rio Claro. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours241287325307299283310302313306313330
Mean daily daylight hours13h 18m12h 48m12h 10m11h 32m11h 1m10h 46m10h 54m11h 21m11h 58m12h 36m13h 10m13h 28m

Solar UV radiation in Rio Claro, Brazil

Rio Claro experiences the highest level of ultraviolet (UV) radiation in January, February and December, when the maximum UV index can reach values of 16 - 16, which corresponds to the Extreme category of sun exposure. May, June and July are in the High / Very High exposure category. In these months, the maximum values of the UV index do not exceed 8. For more detailed information, check out our hourly Rio Claro UV Index data.

Average daily maximum UV levels by month for Rio Claro. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)161613118671012131416