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Monthly climate in Sao Goncalo, Rio de Janeiro, Brazil

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Sao Goncalo features a tropical savanna climate (Aw).Temperatures typically range between 21 °C (69 °F) and 27 °C (82 °F) through the year, but rarely can drop to 11 °C (52 °F) or can rise to as high as 39 °C (103 °F).The average annual precipitation amounts to about 1480 mm (58.3 inches) and receives 165 rainy days on the 1 mm (0.04 inches) threshold annually.Sao Goncalo enjoys an average of 3445 hours of sunshine throughout the year, and daylight varies from 10 hours 44 minutes to 13 hours 29 minutes per day.

Monthly average temperatures in Sao Goncalo, Rio de Janeiro, Brazil §

The warmest months in Sao Goncalo are January, February and March, with daily mean temperatures ranging from 26 to 27 °C (80 - 82 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 21 to 22 °C (69 - 71 °F) throughout the day. On average each year, Sao Goncalo experiences 261 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 Goncalo, Rio de Janeiro, Brazil.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 37°C
(99°F)		 37°C
(99°F)		 36°C
(97°F)		 36°C
(97°F)		 34°C
(93°F)		 33°C
(92°F)		 34°C
(93°F)		 34°C
(94°F)		 37°C
(100°F)		 39°C
(103°F)		 38°C
(101°F)		 36°C
(97°F)
Mean maximum 37°C
(99°F)		 36°C
(97°F)		 35°C
(96°F)		 34°C
(94°F)		 32°C
(90°F)		 31°C
(88°F)		 32°C
(89°F)		 34°C
(93°F)		 36°C
(97°F)		 36°C
(97°F)		 36°C
(96°F)		 35°C
(96°F)
Average high 32°C
(90°F)		 31°C
(87°F)		 31°C
(88°F)		 28°C
(83°F)		 27°C
(80°F)		 27°C
(80°F)		 26°C
(79°F)		 26°C
(78°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(82°F)		 30°C
(86°F)
Daily mean 27°C
(82°F)		 26°C
(80°F)		 26°C
(80°F)		 24°C
(76°F)		 22°C
(72°F)		 22°C
(71°F)		 21°C
(69°F)		 21°C
(70°F)		 23°C
(74°F)		 24°C
(75°F)		 24°C
(75°F)		 26°C
(78°F)
Average low 24°C
(75°F)		 23°C
(74°F)		 23°C
(73°F)		 21°C
(70°F)		 19°C
(66°F)		 18°C
(65°F)		 16°C
(62°F)		 17°C
(63°F)		 19°C
(67°F)		 21°C
(70°F)		 21°C
(70°F)		 22°C
(73°F)
Mean minimum 21°C
(71°F)		 21°C
(70°F)		 20°C
(68°F)		 18°C
(64°F)		 15°C
(59°F)		 16°C
(61°F)		 13°C
(56°F)		 13°C
(56°F)		 16°C
(61°F)		 17°C
(62°F)		 17°C
(63°F)		 19°C
(66°F)
Minimum 20°C
(67°F)		 20°C
(68°F)		 19°C
(66°F)		 16°C
(62°F)		 12°C
(54°F)		 14°C
(57°F)		 11°C
(52°F)		 11°C
(52°F)		 14°C
(58°F)		 16°C
(60°F)		 15°C
(59°F)		 17°C
(63°F)

Compare climate in Sao Goncalo with other places

Compare temperature, precipitation, sunshine, UV index in Sao Goncalo, Rio de Janeiro, Brazil with other places around the world.

Monthly average precipitation in Sao Goncalo, Rio de Janeiro, Brazil §

Sao Goncalo usually has the most precipitation in February, November and December, with an average of 19 rainy days and 208 mm (8.2 inches) of precipitation per month.The driest months in Sao Goncalo are June, July and September. On average, 49 mm (1.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sao Goncalo, Rio de Janeiro, Brazil.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 168 (6.6) 215 (8.5) 184 (7.2) 96 (3.8) 68 (2.7) 47 (1.8) 37 (1.5) 71 (2.8) 63 (2.5) 123 (4.9) 191 (7.5) 217 (8.6)
Average precipitation days (≥ 1 mm) 17 19 19 14 10 8 5 11 8 16 18 20

Monthly sunshine hours in Sao Goncalo, Rio de Janeiro, Brazil §

The sunniest months in Sao Goncalo are March, April and December, when the sun shines an average of 10 hours 2 minutes a day.Least sunny months in Sao Goncalo: January, February and August receive an average of 8 hours 58 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sao Goncalo, Rio de Janeiro, Brazil.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 270 271 309 295 282 275 289 274 293 280 284 318
Mean daily daylight hours 13h 20m 12h 49m 12h 11m 11h 31m 10h 59m 10h 44m 10h 52m 11h 20m 11h 57m 12h 37m 13h 12m 13h 29m

Solar UV radiation in Sao Goncalo, Rio de Janeiro, Brazil §

Sao Goncalo experiences the highest level of ultraviolet (UV) radiation in January, February 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 High exposure category. In these months, the maximum values of the UV index do not exceed 7. For more detailed information, check out our hourly Sao Goncalo UV Index data.

Average daily maximum UV levels by month for Sao Goncalo, Rio de Janeiro, Brazil.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 15 14 13 10 7 6 7 9 11 12 13 15