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Monthly climate in Itatiaia, Rio de Janeiro, Brazil

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Itatiaia features a oceanic climate (Cfb).Temperatures typically range between 16 °C (61 °F) and 23 °C (73 °F) through the year, but rarely can drop to 5 °C (40 °F) or can rise to as high as 34 °C (93 °F).The average annual precipitation amounts to about 2236 mm (88.0 inches) and receives 190 rainy days on the 1 mm (0.04 inches) threshold annually.Itatiaia enjoys an average of 3337 hours of sunshine throughout the year, and daylight varies from 10 hours 45 minutes to 13 hours 28 minutes per day.

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

The warmest months in Itatiaia are January, February and March, with daily mean temperatures ranging from 22 to 23 °C (72 - 73 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 16 to 18 °C (61 - 64 °F) throughout the day. On average each year, Itatiaia experiences 170 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 Itatiaia, 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 32°C
(90°F)		 33°C
(92°F)		 31°C
(89°F)		 31°C
(88°F)		 28°C
(83°F)		 29°C
(84°F)		 27°C
(81°F)		 30°C
(86°F)		 33°C
(92°F)		 34°C
(93°F)		 32°C
(89°F)		 32°C
(89°F)
Mean maximum 31°C
(89°F)		 31°C
(89°F)		 30°C
(87°F)		 29°C
(85°F)		 27°C
(81°F)		 27°C
(80°F)		 27°C
(80°F)		 29°C
(85°F)		 32°C
(90°F)		 32°C
(90°F)		 31°C
(88°F)		 30°C
(87°F)
Average high 28°C
(82°F)		 27°C
(80°F)		 27°C
(81°F)		 25°C
(77°F)		 23°C
(74°F)		 23°C
(73°F)		 22°C
(72°F)		 22°C
(72°F)		 26°C
(79°F)		 25°C
(78°F)		 25°C
(77°F)		 26°C
(79°F)
Daily mean 23°C
(73°F)		 22°C
(72°F)		 22°C
(72°F)		 20°C
(69°F)		 18°C
(64°F)		 18°C
(64°F)		 16°C
(61°F)		 17°C
(63°F)		 20°C
(68°F)		 21°C
(69°F)		 20°C
(69°F)		 22°C
(71°F)
Average low 19°C
(66°F)		 18°C
(65°F)		 18°C
(65°F)		 16°C
(62°F)		 14°C
(57°F)		 13°C
(56°F)		 11°C
(51°F)		 12°C
(54°F)		 15°C
(59°F)		 17°C
(62°F)		 17°C
(62°F)		 18°C
(65°F)
Mean minimum 17°C
(62°F)		 16°C
(62°F)		 15°C
(59°F)		 12°C
(54°F)		 8°C
(47°F)		 10°C
(50°F)		 7°C
(45°F)		 7°C
(45°F)		 10°C
(51°F)		 13°C
(55°F)		 13°C
(55°F)		 14°C
(58°F)
Minimum 15°C
(60°F)		 15°C
(60°F)		 13°C
(55°F)		 11°C
(52°F)		 6°C
(42°F)		 7°C
(46°F)		 5°C
(40°F)		 5°C
(41°F)		 8°C
(47°F)		 12°C
(53°F)		 11°C
(52°F)		 12°C
(53°F)

Compare climate in Itatiaia with other places

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

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

Itatiaia usually has the most precipitation in January, February and December, with an average of 22 rainy days and 346 mm (13.6 inches) of precipitation per month.The driest months in Itatiaia are June, July and August. On average, 48 mm (1.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Itatiaia, 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) 291 (11.5) 333 (13.1) 281 (11.1) 119 (4.7) 74 (2.9) 40 (1.6) 33 (1.3) 71 (2.8) 90 (3.5) 200 (7.9) 289 (11.4) 414 (16.3)
Average precipitation days (≥ 1 mm) 20 22 20 16 10 9 5 9 11 21 21 26

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

The sunniest months in Itatiaia are March, July and September, when the sun shines an average of 9 hours 45 minutes a day.Least sunny months in Itatiaia: January, February and November receive an average of 8 hours 30 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Itatiaia, 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 242 257 299 285 284 277 299 276 297 267 265 284
Mean daily daylight hours 13h 19m 12h 49m 12h 10m 11h 32m 11h 0m 10h 45m 10h 53m 11h 21m 11h 58m 12h 36m 13h 11m 13h 28m

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

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

Average daily maximum UV levels by month for Itatiaia, 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 16 13 11 8 7 8 10 12 13 14 16