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Monthly climate in Rio Bonito, Rio de Janeiro, Brazil

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Rio Bonito features a tropical savanna climate (Aw). Temperatures typically range between 20 °C (69 °F) and 27 °C (80 °F) through the year, but rarely can drop to 12 °C (55 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 1505 mm (59.3 inches) and receives 165 rainy days on the 1 mm (0.04 inches) threshold annually. Rio Bonito enjoys an average of 3586 hours of sunshine throughout the year, and daylight varies from 10 hours 45 minutes to 13 hours 29 minutes per day.

Monthly average temperatures in Rio Bonito, Rio de Janeiro, Brazil §

The warmest months in Rio Bonito are January, February and March, with daily mean temperatures ranging from 26 to 27 °C (79 - 80 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 20 to 22 °C (69 - 71 °F) throughout the day. On average each year, Rio Bonito 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 Rio Bonito, 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 35°C
(95°F)		 35°C
(95°F)		 35°C
(95°F)		 34°C
(94°F)		 32°C
(91°F)		 32°C
(90°F)		 32°C
(89°F)		 32°C
(90°F)		 35°C
(96°F)		 37°C
(99°F)		 35°C
(96°F)		 33°C
(92°F)
Mean maximum 35°C
(95°F)		 34°C
(93°F)		 34°C
(93°F)		 33°C
(92°F)		 31°C
(89°F)		 29°C
(85°F)		 30°C
(86°F)		 31°C
(88°F)		 33°C
(91°F)		 34°C
(93°F)		 33°C
(91°F)		 33°C
(92°F)
Average high 30°C
(87°F)		 29°C
(85°F)		 30°C
(86°F)		 28°C
(82°F)		 26°C
(79°F)		 26°C
(78°F)		 25°C
(77°F)		 24°C
(76°F)		 26°C
(80°F)		 26°C
(80°F)		 26°C
(80°F)		 28°C
(83°F)
Daily mean 27°C
(80°F)		 26°C
(79°F)		 26°C
(79°F)		 24°C
(76°F)		 22°C
(72°F)		 22°C
(71°F)		 20°C
(69°F)		 21°C
(69°F)		 23°C
(73°F)		 23°C
(74°F)		 23°C
(74°F)		 25°C
(77°F)
Average low 24°C
(75°F)		 23°C
(74°F)		 23°C
(73°F)		 21°C
(70°F)		 19°C
(67°F)		 18°C
(65°F)		 17°C
(63°F)		 17°C
(64°F)		 20°C
(67°F)		 21°C
(69°F)		 21°C
(70°F)		 22°C
(72°F)
Mean minimum 21°C
(70°F)		 21°C
(70°F)		 20°C
(69°F)		 18°C
(65°F)		 15°C
(60°F)		 16°C
(61°F)		 14°C
(58°F)		 14°C
(58°F)		 16°C
(62°F)		 17°C
(63°F)		 17°C
(64°F)		 18°C
(65°F)
Minimum 20°C
(68°F)		 20°C
(68°F)		 19°C
(66°F)		 17°C
(63°F)		 14°C
(57°F)		 15°C
(59°F)		 12°C
(55°F)		 13°C
(55°F)		 15°C
(59°F)		 15°C
(60°F)		 16°C
(61°F)		 17°C
(63°F)

Compare climate in Rio Bonito with other places

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

Monthly average precipitation in Rio Bonito, Rio de Janeiro, Brazil §

Rio Bonito usually has the most precipitation in February, November and December, with an average of 19 rainy days and 214 mm (8.4 inches) of precipitation per month. The driest months in Rio Bonito are June, July and September. On average, 48 mm (1.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Rio Bonito, 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) 159 (6.2) 208 (8.2) 199 (7.8) 103 (4.0) 75 (3.0) 46 (1.8) 31 (1.2) 68 (2.7) 66 (2.6) 118 (4.7) 211 (8.3) 222 (8.7)
Average precipitation days (≥ 1 mm) 14 18 19 15 10 8 7 11 9 15 18 21

Monthly sunshine hours in Rio Bonito, Rio de Janeiro, Brazil §

The sunniest months in Rio Bonito are March, November and December, when the sun shines an average of 10 hours 25 minutes a day. Least sunny months in Rio Bonito: January, February and June receive an average of 9 hours 27 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Rio Bonito, 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 286 280 321 303 287 283 294 288 304 296 304 333
Mean daily daylight hours 13h 19m 12h 49m 12h 10m 11h 31m 11h 0m 10h 45m 10h 53m 11h 20m 11h 57m 12h 37m 13h 11m 13h 29m

Solar UV radiation in Rio Bonito, Rio de Janeiro, Brazil §

Rio Bonito experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 14 - 16, 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 Rio Bonito UV Index data.

Average daily maximum UV levels by month for Rio Bonito, 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) 16 14 13 11 8 6 7 9 11 13 14 15

Detailed Monthly Weather Insights for Rio Bonito, Rio de Janeiro, Brazil

Discover in-depth weather details for every month in Rio Bonito. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Rio Bonito's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.