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Monthly climate in Santo Antonio, Brazil

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Santo Antonio features a tropical savanna climate (As). Temperatures typically range between 24 °C (76 °F) and 27 °C (82 °F) through the year, but rarely can drop to 19 °C (66 °F) or can rise to as high as 34 °C (94 °F). The average annual precipitation amounts to about 625 mm (24.6 inches) and receives 131 rainy days on the 1 mm (0.04 inches) threshold annually. Santo Antonio enjoys an average of 3889 hours of sunshine throughout the year, and daylight varies from 11 hours 45 minutes to 12 hours 28 minutes per day.

Monthly average temperatures in Santo Antonio, Brazil

The warmest months in Santo Antonio are January, February and December, with daily mean temperatures ranging from 27 to 27 °C (81 - 82 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 24 to 25 °C (76 - 78 °F) throughout the day. On average each year, Santo Antonio experiences 328 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 Santo Antonio. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum34°C
(93°F)		34°C
(94°F)		34°C
(93°F)		33°C
(92°F)		33°C
(92°F)		32°C
(90°F)		31°C
(89°F)		32°C
(90°F)		33°C
(92°F)		33°C
(92°F)		34°C
(93°F)		34°C
(94°F)
Mean maximum33°C
(92°F)		33°C
(92°F)		33°C
(92°F)		33°C
(91°F)		32°C
(90°F)		30°C
(87°F)		30°C
(87°F)		31°C
(88°F)		32°C
(90°F)		33°C
(91°F)		33°C
(92°F)		34°C
(93°F)
Average high32°C
(89°F)		32°C
(89°F)		31°C
(89°F)		31°C
(87°F)		30°C
(86°F)		29°C
(85°F)		28°C
(83°F)		29°C
(85°F)		30°C
(87°F)		31°C
(89°F)		32°C
(90°F)		32°C
(90°F)
Daily mean27°C
(81°F)		27°C
(81°F)		27°C
(81°F)		27°C
(80°F)		26°C
(79°F)		25°C
(78°F)		24°C
(76°F)		25°C
(77°F)		26°C
(78°F)		27°C
(80°F)		27°C
(81°F)		27°C
(82°F)
Average low24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		23°C
(74°F)		22°C
(72°F)		21°C
(71°F)		21°C
(70°F)		22°C
(72°F)		23°C
(74°F)		24°C
(75°F)		24°C
(76°F)
Mean minimum22°C
(73°F)		23°C
(73°F)		23°C
(73°F)		22°C
(73°F)		22°C
(71°F)		21°C
(70°F)		20°C
(68°F)		20°C
(68°F)		20°C
(69°F)		21°C
(71°F)		22°C
(73°F)		23°C
(73°F)
Minimum21°C
(70°F)		22°C
(72°F)		22°C
(72°F)		22°C
(71°F)		21°C
(70°F)		20°C
(68°F)		19°C
(67°F)		19°C
(66°F)		20°C
(68°F)		21°C
(70°F)		21°C
(71°F)		22°C
(71°F)

Compare climate in Santo Antonio with other places

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

Monthly average precipitation in Santo Antonio, Brazil

Santo Antonio usually has the most precipitation in February, March and April, with an average of 18 rainy days and 98 mm (3.8 inches) of precipitation per month. The driest months in Santo Antonio are August, September and October. On average, 14 mm (0.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Santo Antonio. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)37 (1.5)81 (3.2)119 (4.7)93 (3.7)79 (3.1)55 (2.2)76 (3.0)14 (0.6)14 (0.6)15 (0.6)15 (0.6)26 (1.0)
Average precipitation days (≥ 1 mm)12152219151111444410

Monthly sunshine hours in Santo Antonio, Brazil

The sunniest months in Santo Antonio are October, November and December, when the sun shines an average of 11 hours 22 minutes a day. Least sunny months in Santo Antonio: January, February and April receive an average of 9 hours 50 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Santo Antonio. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours277302333306321314317340330348344352
Mean daily daylight hours12h 25m12h 17m12h 7m11h 56m11h 48m11h 45m11h 46m11h 53m12h 3m12h 14m12h 23m12h 28m

Solar UV radiation in Santo Antonio, Brazil

Santo Antonio experiences the highest level of ultraviolet (UV) radiation in March, April and December, when the maximum UV index can reach values of 14 - 15, which corresponds to the Extreme category of sun exposure. June, July and August are in the Extreme exposure category. In these months, the maximum values of the UV index do not exceed 12. For more detailed information, check out our hourly Santo Antonio UV Index data.

Average daily maximum UV levels by month for Santo Antonio. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)141415141311111213131414