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Monthly climate in Alterosa, Brazil

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Alterosa features a humid subtropical climate (Cwa). Temperatures typically range between 17 °C (62 °F) and 23 °C (74 °F) through the year, but rarely can drop to 3 °C (38 °F) or can rise to as high as 36 °C (97 °F). The average annual precipitation amounts to about 1457 mm (57.4 inches) and receives 131 rainy days on the 1 mm (0.04 inches) threshold annually. Alterosa enjoys an average of 3573 hours of sunshine throughout the year, and daylight varies from 10 hours 50 minutes to 13 hours 23 minutes per day.

Monthly average temperatures in Alterosa, Brazil

The warmest months in Alterosa are January, February and March, with daily mean temperatures ranging from 23 to 23 °C (74 - 74 °F) throughout the day. The coldest temperatures usually occur in May, June and July, when daily mean temperatures range from 17 to 19 °C (62 - 66 °F) throughout the day. On average each year, Alterosa experiences 236 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 Alterosa. 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)		32°C
(90°F)		30°C
(87°F)		29°C
(84°F)		28°C
(83°F)		28°C
(83°F)		31°C
(89°F)		35°C
(96°F)		36°C
(97°F)		33°C
(91°F)		32°C
(90°F)
Mean maximum32°C
(90°F)		32°C
(90°F)		31°C
(89°F)		29°C
(85°F)		28°C
(83°F)		27°C
(81°F)		27°C
(81°F)		30°C
(87°F)		34°C
(93°F)		33°C
(93°F)		32°C
(90°F)		31°C
(88°F)
Average high28°C
(83°F)		28°C
(82°F)		28°C
(83°F)		27°C
(80°F)		25°C
(76°F)		24°C
(75°F)		24°C
(75°F)		25°C
(78°F)		29°C
(85°F)		29°C
(84°F)		27°C
(82°F)		28°C
(82°F)
Daily mean23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		21°C
(70°F)		19°C
(66°F)		18°C
(65°F)		17°C
(62°F)		19°C
(66°F)		22°C
(72°F)		23°C
(73°F)		22°C
(72°F)		23°C
(73°F)
Average low20°C
(68°F)		19°C
(67°F)		19°C
(66°F)		16°C
(62°F)		14°C
(57°F)		13°C
(56°F)		11°C
(52°F)		13°C
(55°F)		16°C
(61°F)		18°C
(65°F)		18°C
(65°F)		19°C
(66°F)
Mean minimum17°C
(63°F)		17°C
(64°F)		16°C
(61°F)		12°C
(53°F)		7°C
(46°F)		9°C
(49°F)		6°C
(43°F)		8°C
(46°F)		12°C
(53°F)		15°C
(59°F)		14°C
(58°F)		16°C
(62°F)
Minimum16°C
(61°F)		16°C
(62°F)		14°C
(58°F)		9°C
(49°F)		4°C
(39°F)		7°C
(44°F)		3°C
(38°F)		6°C
(43°F)		9°C
(49°F)		13°C
(56°F)		12°C
(54°F)		14°C
(57°F)

Compare climate in Alterosa with other places

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

Monthly average precipitation in Alterosa, Brazil

Alterosa usually has the most precipitation in January, February and December, with an average of 19 rainy days and 244 mm (9.6 inches) of precipitation per month. The driest months in Alterosa are June, July and August. On average, 17 mm (0.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Alterosa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)212 (8.4)248 (9.8)172 (6.8)61 (2.4)47 (1.8)19 (0.7)7 (0.3)25 (1.0)39 (1.5)153 (6.0)205 (8.1)270 (10.6)
Average precipitation days (≥ 1 mm)172016853044151722

Monthly sunshine hours in Alterosa, Brazil

The sunniest months in Alterosa are March, July and September, when the sun shines an average of 10 hours 18 minutes a day. Least sunny months in Alterosa: January, February and November receive an average of 9 hours 5 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Alterosa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours249274314305300295318312315296294295
Mean daily daylight hours13h 14m12h 46m12h 10m11h 34m11h 4m10h 50m10h 58m11h 24m11h 58m12h 35m13h 7m13h 23m

Solar UV radiation in Alterosa, Brazil

Alterosa 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 9. For more detailed information, check out our hourly Alterosa UV Index data.

Average daily maximum UV levels by month for Alterosa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)161614129781012141416