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Monthly climate in Santa Rosa, Brazil

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Santa Rosa features a humid subtropical climate (Cfa). Temperatures typically range between 15 °C (60 °F) and 26 °C (79 °F) through the year, but rarely can drop to 0 °C (32 °F) or can rise to as high as 40 °C (104 °F). The average annual precipitation amounts to about 1476 mm (58.1 inches) and receives 116 rainy days on the 1 mm (0.04 inches) threshold annually. Santa Rosa enjoys an average of 3367 hours of sunshine throughout the year, and daylight varies from 10 hours 23 minutes to 13 hours 51 minutes per day.

Monthly average temperatures in Santa Rosa, Brazil

The warmest months in Santa Rosa are January, February and December, 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 15 to 17 °C (60 - 63 °F) throughout the day. On average each year, Santa Rosa experiences 217 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 Santa Rosa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum40°C
(104°F)		38°C
(101°F)		37°C
(100°F)		35°C
(95°F)		33°C
(92°F)		30°C
(87°F)		30°C
(87°F)		36°C
(97°F)		36°C
(96°F)		38°C
(101°F)		38°C
(101°F)		39°C
(103°F)
Mean maximum36°C
(97°F)		36°C
(96°F)		36°C
(97°F)		33°C
(91°F)		30°C
(86°F)		27°C
(80°F)		29°C
(85°F)		33°C
(92°F)		35°C
(95°F)		35°C
(95°F)		36°C
(96°F)		38°C
(100°F)
Average high31°C
(89°F)		31°C
(88°F)		30°C
(86°F)		27°C
(81°F)		23°C
(73°F)		21°C
(70°F)		21°C
(70°F)		23°C
(74°F)		26°C
(79°F)		27°C
(81°F)		30°C
(85°F)		32°C
(89°F)
Daily mean26°C
(79°F)		25°C
(77°F)		24°C
(75°F)		21°C
(71°F)		18°C
(64°F)		16°C
(61°F)		15°C
(60°F)		17°C
(63°F)		20°C
(69°F)		22°C
(72°F)		24°C
(75°F)		26°C
(79°F)
Average low22°C
(71°F)		20°C
(69°F)		19°C
(67°F)		17°C
(63°F)		14°C
(58°F)		12°C
(54°F)		11°C
(52°F)		12°C
(54°F)		16°C
(60°F)		17°C
(63°F)		18°C
(65°F)		20°C
(68°F)
Mean minimum17°C
(62°F)		14°C
(58°F)		13°C
(56°F)		11°C
(51°F)		7°C
(45°F)		3°C
(38°F)		2°C
(35°F)		3°C
(38°F)		9°C
(48°F)		11°C
(52°F)		13°C
(55°F)		15°C
(59°F)
Minimum15°C
(59°F)		11°C
(53°F)		12°C
(54°F)		7°C
(45°F)		5°C
(41°F)		1°C
(34°F)		-0°C
(32°F)		0°C
(32°F)		6°C
(43°F)		9°C
(48°F)		11°C
(52°F)		12°C
(53°F)

Compare climate in Santa Rosa with other places

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

Monthly average precipitation in Santa Rosa, Brazil

Santa Rosa usually has the most precipitation in January, May and October, with an average of 12 rainy days and 173 mm (6.8 inches) of precipitation per month. The driest months in Santa Rosa are July, August and December. On average, 86 mm (3.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Santa Rosa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)148 (5.8)104 (4.1)115 (4.5)113 (4.5)198 (7.8)126 (5.0)98 (3.9)77 (3.0)116 (4.5)174 (6.9)124 (4.9)83 (3.3)
Average precipitation days (≥ 1 mm)131310711976912910

Monthly sunshine hours in Santa Rosa, Brazil

The sunniest months in Santa Rosa are March, November and December, when the sun shines an average of 10 hours 50 minutes a day. Least sunny months in Santa Rosa: May, June and July receive an average of 7 hours 39 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Santa Rosa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours260306307273233219250274263287318370
Mean daily daylight hours13h 39m13h 1m12h 12m11h 23m10h 42m10h 23m10h 33m11h 9m11h 56m12h 45m13h 29m13h 51m

Solar UV radiation in Santa Rosa, Brazil

Santa Rosa experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 14 - 15, which corresponds to the Extreme category of sun exposure. May, June and July are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly Santa Rosa UV Index data.

Average daily maximum UV levels by month for Santa Rosa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)15141210656710131414