nomadseason

Monthly climate in Sao Sebastiao, Brazil

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Sao Sebastiao features a tropical savanna climate (As). Temperatures typically range between 23 °C (74 °F) and 28 °C (82 °F) through the year, but rarely can drop to 17 °C (63 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 786 mm (30.9 inches) and receives 195 rainy days on the 1 mm (0.04 inches) threshold annually. Sao Sebastiao enjoys an average of 3935 hours of sunshine throughout the year, and daylight varies from 11 hours 32 minutes to 12 hours 40 minutes per day.

Monthly average temperatures in Sao Sebastiao, Brazil

The warmest months in Sao Sebastiao are February, March and December, with daily mean temperatures ranging from 27 to 28 °C (81 - 82 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 23 to 24 °C (74 - 76 °F) throughout the day. On average each year, Sao Sebastiao experiences 323 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 Sebastiao. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum36°C
(96°F)		35°C
(95°F)		37°C
(99°F)		34°C
(93°F)		34°C
(94°F)		30°C
(87°F)		30°C
(86°F)		31°C
(88°F)		33°C
(91°F)		35°C
(95°F)		35°C
(96°F)		36°C
(97°F)
Mean maximum34°C
(93°F)		34°C
(94°F)		35°C
(95°F)		33°C
(91°F)		32°C
(90°F)		29°C
(84°F)		29°C
(84°F)		29°C
(85°F)		31°C
(87°F)		33°C
(92°F)		34°C
(93°F)		35°C
(95°F)
Average high31°C
(89°F)		32°C
(90°F)		31°C
(89°F)		30°C
(87°F)		29°C
(84°F)		27°C
(82°F)		26°C
(80°F)		27°C
(81°F)		28°C
(83°F)		30°C
(87°F)		32°C
(89°F)		32°C
(90°F)
Daily mean27°C
(81°F)		28°C
(82°F)		27°C
(81°F)		27°C
(80°F)		25°C
(78°F)		24°C
(76°F)		23°C
(74°F)		24°C
(75°F)		24°C
(76°F)		26°C
(79°F)		27°C
(81°F)		27°C
(81°F)
Average low24°C
(75°F)		24°C
(76°F)		24°C
(75°F)		23°C
(75°F)		23°C
(73°F)		22°C
(71°F)		21°C
(69°F)		21°C
(69°F)		21°C
(71°F)		23°C
(73°F)		23°C
(74°F)		24°C
(75°F)
Mean minimum22°C
(72°F)		23°C
(73°F)		22°C
(73°F)		22°C
(72°F)		21°C
(70°F)		20°C
(69°F)		18°C
(65°F)		18°C
(65°F)		20°C
(68°F)		21°C
(70°F)		22°C
(72°F)		22°C
(72°F)
Minimum22°C
(71°F)		23°C
(73°F)		22°C
(72°F)		21°C
(71°F)		20°C
(69°F)		18°C
(65°F)		17°C
(63°F)		18°C
(64°F)		19°C
(66°F)		21°C
(69°F)		21°C
(71°F)		22°C
(72°F)

Compare climate in Sao Sebastiao with other places

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

Monthly average precipitation in Sao Sebastiao, Brazil

Sao Sebastiao usually has the most precipitation in May, June and July, with an average of 23 rainy days and 107 mm (4.2 inches) of precipitation per month. The driest months in Sao Sebastiao are October, November and December. On average, 27 mm (1.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sao Sebastiao. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)35 (1.4)49 (1.9)91 (3.6)94 (3.7)105 (4.1)109 (4.3)108 (4.2)62 (2.5)52 (2.1)26 (1.0)28 (1.1)28 (1.1)
Average precipitation days (≥ 1 mm)121317202224242018988

Monthly sunshine hours in Sao Sebastiao, Brazil

The sunniest months in Sao Sebastiao are March, October and December, when the sun shines an average of 11 hours 22 minutes a day. Least sunny months in Sao Sebastiao: January, June and July receive an average of 9 hours 44 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sao Sebastiao. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours287323348328319303304330333355346354
Mean daily daylight hours12h 36m12h 24m12h 7m11h 51m11h 38m11h 32m11h 35m11h 47m12h 2m12h 18m12h 33m12h 40m

Solar UV radiation in Sao Sebastiao, Brazil

Sao Sebastiao experiences the highest level of ultraviolet (UV) radiation in April, 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 Very High / 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 Sebastiao UV Index data.

Average daily maximum UV levels by month for Sao Sebastiao. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)141414141210101213141514