nomadseason

Monthly climate in Caieiras, Brazil

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Caieiras features a humid subtropical climate (Cfa). Temperatures typically range between 16 °C (62 °F) and 23 °C (74 °F) through the year, but rarely can drop to 1 °C (34 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 1246 mm (49.0 inches) and receives 129 rainy days on the 1 mm (0.04 inches) threshold annually. Caieiras enjoys an average of 3469 hours of sunshine throughout the year, and daylight varies from 10 hours 42 minutes to 13 hours 31 minutes per day.

Monthly average temperatures in Caieiras, Brazil

The warmest months in Caieiras are January, February and March, with daily mean temperatures ranging from 22 to 23 °C (73 - 74 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 16 to 18 °C (62 - 64 °F) throughout the day. On average each year, Caieiras experiences 199 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 Caieiras. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum34°C
(93°F)		35°C
(95°F)		32°C
(90°F)		31°C
(88°F)		29°C
(85°F)		28°C
(82°F)		29°C
(84°F)		31°C
(88°F)		34°C
(94°F)		37°C
(99°F)		35°C
(96°F)		34°C
(93°F)
Mean maximum32°C
(90°F)		32°C
(90°F)		31°C
(89°F)		30°C
(85°F)		28°C
(83°F)		26°C
(79°F)		27°C
(82°F)		30°C
(86°F)		33°C
(92°F)		33°C
(92°F)		32°C
(90°F)		32°C
(89°F)
Average high28°C
(83°F)		28°C
(82°F)		28°C
(82°F)		26°C
(78°F)		23°C
(75°F)		23°C
(73°F)		23°C
(74°F)		23°C
(74°F)		27°C
(81°F)		27°C
(80°F)		26°C
(79°F)		27°C
(82°F)
Daily mean23°C
(74°F)		22°C
(73°F)		22°C
(73°F)		20°C
(69°F)		18°C
(64°F)		18°C
(64°F)		16°C
(62°F)		17°C
(63°F)		20°C
(69°F)		21°C
(70°F)		21°C
(69°F)		22°C
(72°F)
Average low19°C
(67°F)		18°C
(65°F)		19°C
(66°F)		16°C
(61°F)		14°C
(57°F)		13°C
(56°F)		11°C
(51°F)		12°C
(54°F)		15°C
(59°F)		17°C
(62°F)		16°C
(62°F)		18°C
(65°F)
Mean minimum16°C
(61°F)		16°C
(60°F)		15°C
(60°F)		12°C
(54°F)		8°C
(46°F)		9°C
(49°F)		5°C
(41°F)		7°C
(45°F)		11°C
(52°F)		12°C
(54°F)		12°C
(54°F)		14°C
(57°F)
Minimum13°C
(55°F)		15°C
(58°F)		13°C
(56°F)		10°C
(50°F)		3°C
(39°F)		7°C
(44°F)		1°C
(34°F)		5°C
(42°F)		8°C
(47°F)		11°C
(52°F)		11°C
(52°F)		12°C
(53°F)

Compare climate in Caieiras with other places

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

Monthly average precipitation in Caieiras, Brazil

Caieiras usually has the most precipitation in January, February and December, with an average of 18 rainy days and 187 mm (7.4 inches) of precipitation per month. The driest months in Caieiras are June, July and September. On average, 35 mm (1.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Caieiras. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)204 (8.0)191 (7.5)147 (5.8)63 (2.5)47 (1.9)43 (1.7)19 (0.7)55 (2.2)44 (1.7)125 (4.9)142 (5.6)166 (6.5)
Average precipitation days (≥ 1 mm)191616855165151320

Monthly sunshine hours in Caieiras, Brazil

The sunniest months in Caieiras are March, September and December, when the sun shines an average of 10 hours 12 minutes a day. Least sunny months in Caieiras: January, February and June receive an average of 8 hours 40 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Caieiras. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours239273316296286267300281303287297318
Mean daily daylight hours13h 22m12h 50m12h 11m11h 30m10h 58m10h 42m10h 50m11h 19m11h 57m12h 38m13h 13m13h 31m

Solar UV radiation in Caieiras, Brazil

Caieiras 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 Caieiras UV Index data.

Average daily maximum UV levels by month for Caieiras. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)16161311867911131416