Monthly climate in Rio de Janeiro, Brazil

Last updated: June 28, 2022

Under the Köppen–Geiger climate classification Rio de Janeiro features a tropical savanna climate (Aw). Temperatures typically range between 21 °C (70 °F) and 27 °C (81 °F) through the year, but rarely can drop to 13 °C (57 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 1181 mm (46.5 inches) and receives 154 rainy days on the 1 mm (0.04 inches) threshold annually. Rio de Janeiro enjoys an average of 3446 hours of sunshine throughout the year, and daylight varies from 10 hours 44 minutes to 13 hours 30 minutes per day.

Monthly average temperatures in Rio de Janeiro, Brazil §

The warmest months in Rio de Janeiro are January, February and Mart, with daily mean temperatures ranging from 26 to 27 °C (80 - 81 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 21 to 22 °C (70 - 72 °F) throughout the day. On average each year, Rio de Janeiro experiences 242 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 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
(94°F)
34°C
(94°F)
33°C
(91°F)
32°C
(89°F)
32°C
(91°F)
33°C
(91°F)
35°C
(96°F)
37°C
(99°F)
35°C
(94°F)
34°C
(93°F)
Mean maximum 35°C
(95°F)
33°C
(92°F)
33°C
(92°F)
32°C
(90°F)
31°C
(88°F)
29°C
(85°F)
30°C
(87°F)
32°C
(90°F)
33°C
(92°F)
33°C
(92°F)
33°C
(91°F)
33°C
(91°F)
Average high 30°C
(87°F)
29°C
(85°F)
30°C
(86°F)
27°C
(82°F)
26°C
(79°F)
26°C
(79°F)
25°C
(77°F)
25°C
(77°F)
27°C
(80°F)
27°C
(80°F)
26°C
(80°F)
28°C
(83°F)
Daily mean 27°C
(81°F)
27°C
(80°F)
26°C
(80°F)
25°C
(76°F)
23°C
(73°F)
22°C
(72°F)
21°C
(70°F)
21°C
(70°F)
23°C
(74°F)
24°C
(75°F)
24°C
(75°F)
25°C
(78°F)
Average low 25°C
(77°F)
24°C
(76°F)
24°C
(75°F)
22°C
(72°F)
20°C
(68°F)
20°C
(67°F)
18°C
(65°F)
18°C
(65°F)
20°C
(68°F)
21°C
(71°F)
21°C
(70°F)
23°C
(73°F)
Mean minimum 22°C
(72°F)
22°C
(72°F)
21°C
(71°F)
20°C
(67°F)
17°C
(63°F)
18°C
(64°F)
15°C
(60°F)
15°C
(59°F)
17°C
(63°F)
18°C
(65°F)
18°C
(66°F)
20°C
(68°F)
Minimum 21°C
(69°F)
21°C
(71°F)
20°C
(68°F)
18°C
(65°F)
15°C
(60°F)
16°C
(61°F)
13°C
(57°F)
14°C
(57°F)
16°C
(60°F)
17°C
(63°F)
17°C
(64°F)
18°C
(65°F)

Compare climate in Rio de Janeiro with other places

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

Monthly average precipitation in Rio de Janeiro, Brazil §

Rio de Janeiro usually has the most precipitation in February, Mart and December, with an average of 17 rainy days and 151 mm (5.9 inches) of precipitation per month. The driest months in Rio de Janeiro are June, July and September. On average, 46 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in 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) 112 (4.4) 146 (5.7) 163 (6.4) 95 (3.7) 77 (3.1) 44 (1.7) 38 (1.5) 75 (3.0) 55 (2.2) 98 (3.8) 135 (5.3) 143 (5.6)
Average precipitation days (≥ 1 mm) 13 17 17 13 10 9 7 11 8 15 17 17

Monthly sunshine hours in Rio de Janeiro, Brazil §

The sunniest months in Rio de Janeiro are Mart, April and December, when the sun shines an average of 10 hours 2 minutes a day. Least sunny months in Rio de Janeiro: 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 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 270 271 309 296 282 276 290 275 293 281 284 318
Mean daily daylight hours 13h 20m 12h 50m 12h 11m 11h 31m 10h 59m 10h 44m 10h 52m 11h 20m 11h 57m 12h 37m 13h 12m 13h 30m

Solar UV radiation in Rio de Janeiro, Brazil §

Rio de Janeiro experiences the highest level of ultraviolet (UV) radiation in Mart, 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 Moderate / 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 de Janeiro UV Index data.

Average daily maximum UV levels by month for Rio de Janeiro, Brazil. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 13 15 15 8 7 3 8 10 12 13 15 15