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Monthly climate in Cachoeiras de Macacu, Brazil

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Cachoeiras de Macacu features a humid subtropical climate (Cfa). Temperatures typically range between 18 °C (64 °F) and 24 °C (76 °F) through the year, but rarely can drop to 7 °C (45 °F) or can rise to as high as 35 °C (96 °F). The average annual precipitation amounts to about 2076 mm (81.7 inches) and receives 193 rainy days on the 1 mm (0.04 inches) threshold annually. Cachoeiras de Macacu enjoys an average of 3518 hours of sunshine throughout the year, and daylight varies from 10 hours 45 minutes to 13 hours 28 minutes per day.

Monthly average temperatures in Cachoeiras de Macacu, Brazil

The warmest months in Cachoeiras de Macacu are January, February and March, with daily mean temperatures ranging from 23 to 24 °C (74 - 76 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 18 to 19 °C (64 - 66 °F) throughout the day. On average each year, Cachoeiras de Macacu experiences 198 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 Cachoeiras de Macacu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum33°C
(92°F)		33°C
(92°F)		33°C
(91°F)		32°C
(90°F)		30°C
(87°F)		30°C
(86°F)		30°C
(85°F)		31°C
(87°F)		34°C
(93°F)		35°C
(96°F)		34°C
(94°F)		32°C
(90°F)
Mean maximum33°C
(91°F)		32°C
(90°F)		32°C
(90°F)		31°C
(88°F)		29°C
(85°F)		28°C
(82°F)		28°C
(83°F)		30°C
(86°F)		32°C
(90°F)		32°C
(90°F)		32°C
(89°F)		31°C
(89°F)
Average high29°C
(84°F)		28°C
(82°F)		28°C
(83°F)		26°C
(79°F)		24°C
(76°F)		24°C
(76°F)		23°C
(74°F)		23°C
(74°F)		26°C
(79°F)		26°C
(78°F)		25°C
(78°F)		27°C
(81°F)
Daily mean24°C
(76°F)		24°C
(75°F)		23°C
(74°F)		21°C
(71°F)		19°C
(67°F)		19°C
(66°F)		18°C
(64°F)		18°C
(65°F)		21°C
(70°F)		22°C
(71°F)		21°C
(71°F)		23°C
(74°F)
Average low21°C
(69°F)		20°C
(68°F)		20°C
(68°F)		18°C
(64°F)		15°C
(60°F)		15°C
(59°F)		13°C
(56°F)		14°C
(57°F)		17°C
(62°F)		18°C
(65°F)		18°C
(65°F)		20°C
(67°F)
Mean minimum18°C
(65°F)		18°C
(64°F)		17°C
(62°F)		14°C
(58°F)		11°C
(52°F)		12°C
(54°F)		9°C
(49°F)		9°C
(49°F)		12°C
(54°F)		14°C
(57°F)		14°C
(57°F)		15°C
(59°F)
Minimum17°C
(62°F)		17°C
(62°F)		15°C
(59°F)		13°C
(56°F)		9°C
(48°F)		9°C
(49°F)		7°C
(45°F)		7°C
(45°F)		10°C
(50°F)		11°C
(53°F)		11°C
(53°F)		12°C
(54°F)

Compare climate in Cachoeiras de Macacu with other places

Compare temperature, precipitation, sunshine, UV index in Cachoeiras de Macacu, Brazil with other places around the world.

Monthly average precipitation in Cachoeiras de Macacu, Brazil

Cachoeiras de Macacu usually has the most precipitation in February, November and December, with an average of 23 rainy days and 323 mm (12.7 inches) of precipitation per month. The driest months in Cachoeiras de Macacu are June, July and August. On average, 52 mm (2.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Cachoeiras de Macacu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)255 (10.1)334 (13.2)247 (9.7)124 (4.9)76 (3.0)50 (2.0)34 (1.3)73 (2.9)83 (3.3)164 (6.5)290 (11.4)345 (13.6)
Average precipitation days (≥ 1 mm)2023211710961011192126

Monthly sunshine hours in Cachoeiras de Macacu, Brazil

The sunniest months in Cachoeiras de Macacu are March, September and December, when the sun shines an average of 10 hours 13 minutes a day. Least sunny months in Cachoeiras de Macacu: January, February and June receive an average of 9 hours 15 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Cachoeiras de Macacu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours277272315297285283298285303287289321
Mean daily daylight hours13h 18m12h 49m12h 10m11h 32m11h 0m10h 45m10h 53m11h 21m11h 58m12h 36m13h 11m13h 28m

Solar UV radiation in Cachoeiras de Macacu, Brazil

Cachoeiras de Macacu 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 8. For more detailed information, check out our hourly Cachoeiras de Macacu UV Index data.

Average daily maximum UV levels by month for Cachoeiras de Macacu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)16151411867912131416