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Monthly climate in Sao Joao, Brazil

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Sao Joao features a tropical savanna climate (As). Temperatures typically range between 20 °C (69 °F) and 24 °C (76 °F) through the year, but rarely can drop to 15 °C (59 °F) or can rise to as high as 35 °C (95 °F). The average annual precipitation amounts to about 892 mm (35.1 inches) and receives 219 rainy days on the 1 mm (0.04 inches) threshold annually. Sao Joao enjoys an average of 3775 hours of sunshine throughout the year, and daylight varies from 11 hours 36 minutes to 12 hours 37 minutes per day.

Monthly average temperatures in Sao Joao, Brazil

The warmest months in Sao Joao are February, March and December, with daily mean temperatures ranging from 24 to 24 °C (75 - 76 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 20 to 21 °C (69 - 71 °F) throughout the day. On average each year, Sao Joao experiences 246 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 Sao Joao. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum33°C
(91°F)		33°C
(92°F)		35°C
(95°F)		31°C
(88°F)		31°C
(88°F)		27°C
(81°F)		27°C
(81°F)		28°C
(83°F)		30°C
(87°F)		31°C
(88°F)		33°C
(92°F)		32°C
(90°F)
Mean maximum31°C
(88°F)		31°C
(89°F)		32°C
(90°F)		30°C
(86°F)		29°C
(85°F)		26°C
(79°F)		26°C
(79°F)		26°C
(80°F)		28°C
(83°F)		30°C
(86°F)		31°C
(88°F)		31°C
(89°F)
Average high28°C
(84°F)		29°C
(85°F)		29°C
(84°F)		27°C
(82°F)		26°C
(79°F)		24°C
(76°F)		23°C
(75°F)		24°C
(76°F)		25°C
(77°F)		27°C
(81°F)		28°C
(83°F)		29°C
(84°F)
Daily mean24°C
(75°F)		24°C
(76°F)		24°C
(76°F)		24°C
(75°F)		22°C
(73°F)		21°C
(71°F)		20°C
(69°F)		20°C
(69°F)		21°C
(71°F)		23°C
(73°F)		24°C
(75°F)		24°C
(75°F)
Average low20°C
(69°F)		21°C
(70°F)		21°C
(70°F)		21°C
(69°F)		20°C
(68°F)		19°C
(66°F)		18°C
(65°F)		18°C
(64°F)		18°C
(65°F)		19°C
(67°F)		20°C
(68°F)		20°C
(69°F)
Mean minimum19°C
(67°F)		19°C
(66°F)		19°C
(66°F)		19°C
(66°F)		18°C
(65°F)		18°C
(64°F)		16°C
(61°F)		15°C
(60°F)		16°C
(62°F)		17°C
(63°F)		18°C
(65°F)		18°C
(65°F)
Minimum19°C
(66°F)		18°C
(65°F)		18°C
(65°F)		18°C
(64°F)		17°C
(63°F)		16°C
(61°F)		15°C
(59°F)		15°C
(59°F)		16°C
(61°F)		16°C
(61°F)		18°C
(64°F)		18°C
(64°F)

Compare climate in Sao Joao with other places

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

Monthly average precipitation in Sao Joao, Brazil

Sao Joao usually has the most precipitation in May, June and July, with an average of 23 rainy days and 113 mm (4.4 inches) of precipitation per month. The driest months in Sao Joao are October, November and December. On average, 39 mm (1.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sao Joao. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)45 (1.8)50 (2.0)98 (3.8)91 (3.6)111 (4.4)103 (4.1)124 (4.9)83 (3.3)70 (2.7)39 (1.5)37 (1.5)39 (1.5)
Average precipitation days (≥ 1 mm)151518212223242322141111

Monthly sunshine hours in Sao Joao, Brazil

The sunniest months in Sao Joao are October, November and December, when the sun shines an average of 11 hours 11 minutes a day. Least sunny months in Sao Joao: January, June and July receive an average of 9 hours 18 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sao Joao. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours275306334309300285295316321345337345
Mean daily daylight hours12h 33m12h 22m12h 7m11h 53m11h 41m11h 36m11h 38m11h 49m12h 2m12h 17m12h 30m12h 37m

Solar UV radiation in Sao Joao, Brazil

Sao Joao experiences the highest level of ultraviolet (UV) radiation in March, November and December, when the maximum UV index can reach values of 15 - 15, which corresponds to the Extreme category of sun exposure. May, June and July 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 Sao Joao UV Index data.

Average daily maximum UV levels by month for Sao Joao. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)151415141211111214141515