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Monthly climate in Rio Casca, Brazil

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Rio Casca features a tropical savanna climate (Aw). Temperatures typically range between 19 °C (67 °F) and 26 °C (79 °F) through the year, but rarely can drop to 7 °C (44 °F) or can rise to as high as 38 °C (100 °F). The average annual precipitation amounts to about 988 mm (38.9 inches) and receives 99 rainy days on the 1 mm (0.04 inches) threshold annually. Rio Casca enjoys an average of 3363 hours of sunshine throughout the year, and daylight varies from 10 hours 54 minutes to 13 hours 19 minutes per day.

Monthly average temperatures in Rio Casca, Brazil

The warmest months in Rio Casca are January, February and March, with daily mean temperatures ranging from 25 to 26 °C (77 - 79 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 19 to 20 °C (67 - 69 °F) throughout the day. On average each year, Rio Casca experiences 273 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 Casca. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum36°C
(96°F)		36°C
(96°F)		35°C
(95°F)		34°C
(93°F)		31°C
(88°F)		31°C
(88°F)		32°C
(91°F)		32°C
(89°F)		37°C
(99°F)		38°C
(100°F)		37°C
(99°F)		35°C
(95°F)
Mean maximum34°C
(94°F)		33°C
(92°F)		33°C
(92°F)		32°C
(90°F)		30°C
(86°F)		29°C
(85°F)		30°C
(86°F)		30°C
(87°F)		35°C
(95°F)		35°C
(96°F)		34°C
(93°F)		34°C
(93°F)
Average high31°C
(88°F)		29°C
(85°F)		30°C
(87°F)		29°C
(84°F)		26°C
(80°F)		26°C
(79°F)		25°C
(78°F)		26°C
(79°F)		29°C
(85°F)		29°C
(85°F)		28°C
(83°F)		29°C
(85°F)
Daily mean26°C
(79°F)		25°C
(77°F)		25°C
(77°F)		23°C
(74°F)		21°C
(70°F)		20°C
(69°F)		19°C
(67°F)		20°C
(69°F)		23°C
(74°F)		24°C
(76°F)		24°C
(75°F)		25°C
(76°F)
Average low21°C
(71°F)		21°C
(70°F)		20°C
(69°F)		19°C
(67°F)		16°C
(62°F)		16°C
(61°F)		14°C
(58°F)		15°C
(60°F)		18°C
(64°F)		20°C
(68°F)		20°C
(68°F)		21°C
(70°F)
Mean minimum20°C
(67°F)		19°C
(67°F)		18°C
(64°F)		15°C
(59°F)		11°C
(52°F)		13°C
(55°F)		11°C
(51°F)		10°C
(51°F)		14°C
(57°F)		17°C
(62°F)		17°C
(63°F)		18°C
(64°F)
Minimum19°C
(66°F)		18°C
(65°F)		16°C
(60°F)		13°C
(56°F)		7°C
(44°F)		11°C
(52°F)		9°C
(48°F)		9°C
(49°F)		13°C
(55°F)		16°C
(60°F)		16°C
(61°F)		15°C
(60°F)

Compare climate in Rio Casca with other places

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

Monthly average precipitation in Rio Casca, Brazil

Rio Casca usually has the most precipitation in February, November and December, with an average of 15 rainy days and 169 mm (6.7 inches) of precipitation per month. The driest months in Rio Casca are June, July and August. On average, 9 mm (0.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Rio Casca. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)98 (3.9)190 (7.5)121 (4.8)57 (2.3)39 (1.5)7 (0.3)4 (0.1)18 (0.7)21 (0.8)116 (4.6)155 (6.1)163 (6.4)
Average precipitation days (≥ 1 mm)81412942123131615

Monthly sunshine hours in Rio Casca, Brazil

The sunniest months in Rio Casca are March, July and September, when the sun shines an average of 9 hours 55 minutes a day. Least sunny months in Rio Casca: February, October and November receive an average of 8 hours 30 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Rio Casca. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours273262311286283276298275303262240289
Mean daily daylight hours13h 11m12h 44m12h 10m11h 35m11h 8m10h 54m11h 1m11h 26m11h 58m12h 33m13h 3m13h 19m

Solar UV radiation in Rio Casca, Brazil

Rio Casca experiences the highest level of ultraviolet (UV) radiation in January, February and December, when the maximum UV index can reach values of 15 - 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 9. For more detailed information, check out our hourly Rio Casca UV Index data.

Average daily maximum UV levels by month for Rio Casca. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)161514129781012131416