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Monthly climate in Sao Sebastiao, Brazil

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Sao Sebastiao features a humid subtropical climate (Cfa). Temperatures typically range between 19 °C (67 °F) and 26 °C (79 °F) through the year, but rarely can drop to 11 °C (52 °F) or can rise to as high as 36 °C (96 °F). The average annual precipitation amounts to about 1883 mm (74.1 inches) and receives 183 rainy days on the 1 mm (0.04 inches) threshold annually. Sao Sebastiao enjoys an average of 3405 hours of sunshine throughout the year, and daylight varies from 10 hours 40 minutes to 13 hours 33 minutes per day.

Monthly average temperatures in Sao Sebastiao, Brazil

The warmest months in Sao Sebastiao are January, February and March, 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 19 to 21 °C (67 - 69 °F) throughout the day. On average each year, Sao Sebastiao experiences 139 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
Maximum32°C
(90°F)		32°C
(90°F)		32°C
(89°F)		32°C
(89°F)		28°C
(83°F)		30°C
(86°F)		29°C
(85°F)		31°C
(88°F)		34°C
(93°F)		36°C
(96°F)		31°C
(88°F)		31°C
(88°F)
Mean maximum31°C
(89°F)		31°C
(87°F)		30°C
(87°F)		29°C
(85°F)		28°C
(82°F)		27°C
(81°F)		28°C
(83°F)		28°C
(83°F)		30°C
(87°F)		31°C
(88°F)		29°C
(85°F)		30°C
(86°F)
Average high28°C
(82°F)		27°C
(81°F)		27°C
(81°F)		25°C
(77°F)		23°C
(74°F)		23°C
(74°F)		22°C
(72°F)		21°C
(71°F)		23°C
(73°F)		24°C
(75°F)		24°C
(75°F)		26°C
(78°F)
Daily mean26°C
(79°F)		25°C
(77°F)		25°C
(77°F)		23°C
(74°F)		21°C
(70°F)		21°C
(69°F)		20°C
(67°F)		19°C
(67°F)		21°C
(70°F)		22°C
(71°F)		22°C
(72°F)		24°C
(75°F)
Average low24°C
(75°F)		23°C
(74°F)		23°C
(74°F)		21°C
(71°F)		20°C
(67°F)		19°C
(66°F)		18°C
(64°F)		18°C
(64°F)		19°C
(67°F)		20°C
(69°F)		20°C
(69°F)		22°C
(72°F)
Mean minimum21°C
(70°F)		21°C
(70°F)		21°C
(70°F)		19°C
(66°F)		16°C
(61°F)		16°C
(62°F)		13°C
(57°F)		14°C
(58°F)		17°C
(62°F)		17°C
(64°F)		17°C
(64°F)		19°C
(67°F)
Minimum20°C
(69°F)		20°C
(68°F)		19°C
(66°F)		17°C
(64°F)		14°C
(57°F)		15°C
(60°F)		11°C
(52°F)		13°C
(56°F)		15°C
(60°F)		16°C
(61°F)		16°C
(60°F)		18°C
(64°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 January, February and March, with an average of 20 rainy days and 244 mm (9.6 inches) of precipitation per month. The driest months in Sao Sebastiao are June, July and September. On average, 86 mm (3.4 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)206 (8.1)277 (10.9)247 (9.7)125 (4.9)119 (4.7)100 (4.0)63 (2.5)116 (4.6)95 (3.7)161 (6.3)176 (6.9)197 (7.7)
Average precipitation days (≥ 1 mm)19212015111261111191820

Monthly sunshine hours in Sao Sebastiao, Brazil

The sunniest months in Sao Sebastiao are March, November and December, when the sun shines an average of 10 hours 4 minutes a day. Least sunny months in Sao Sebastiao: January, June and August receive an average of 8 hours 28 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 hours256272304294282260287262290271298323
Mean daily daylight hours13h 23m12h 51m12h 11m11h 30m10h 56m10h 40m10h 49m11h 18m11h 57m12h 38m13h 15m13h 33m

Solar UV radiation in Sao Sebastiao, Brazil

Sao Sebastiao experiences the highest level of ultraviolet (UV) radiation in January, February 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 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 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)15151211867911131415