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Monthly climate in Petropolis, Rio de Janeiro, Brazil

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Petropolis features a tropical savanna climate (Aw).Temperatures typically range between 18 °C (65 °F) and 25 °C (77 °F) through the year, but rarely can drop to 7 °C (45 °F) or can rise to as high as 36 °C (98 °F).The average annual precipitation amounts to about 1765 mm (69.5 inches) and receives 177 rainy days on the 1 mm (0.04 inches) threshold annually.Petropolis enjoys an average of 3451 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 Petropolis, Rio de Janeiro, Brazil §

The warmest months in Petropolis are January, February and March, with daily mean temperatures ranging from 24 to 25 °C (76 - 77 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 18 to 20 °C (65 - 68 °F) throughout the day. On average each year, Petropolis experiences 220 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 Petropolis, 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 34°C
(93°F)		 35°C
(94°F)		 33°C
(92°F)		 33°C
(92°F)		 31°C
(88°F)		 30°C
(87°F)		 30°C
(87°F)		 32°C
(89°F)		 35°C
(95°F)		 36°C
(98°F)		 35°C
(95°F)		 33°C
(92°F)
Mean maximum 34°C
(93°F)		 33°C
(91°F)		 33°C
(91°F)		 31°C
(89°F)		 30°C
(86°F)		 29°C
(84°F)		 29°C
(85°F)		 31°C
(88°F)		 33°C
(92°F)		 33°C
(92°F)		 33°C
(91°F)		 32°C
(91°F)
Average high 30°C
(86°F)		 29°C
(84°F)		 29°C
(84°F)		 27°C
(80°F)		 25°C
(77°F)		 25°C
(77°F)		 24°C
(76°F)		 24°C
(75°F)		 27°C
(80°F)		 26°C
(80°F)		 26°C
(79°F)		 28°C
(82°F)
Daily mean 25°C
(77°F)		 24°C
(76°F)		 24°C
(76°F)		 22°C
(72°F)		 20°C
(68°F)		 20°C
(68°F)		 18°C
(65°F)		 19°C
(66°F)		 21°C
(71°F)		 22°C
(72°F)		 22°C
(72°F)		 24°C
(75°F)
Average low 21°C
(71°F)		 21°C
(70°F)		 20°C
(69°F)		 18°C
(65°F)		 16°C
(61°F)		 16°C
(61°F)		 14°C
(57°F)		 15°C
(59°F)		 17°C
(63°F)		 19°C
(66°F)		 19°C
(66°F)		 20°C
(69°F)
Mean minimum 19°C
(67°F)		 18°C
(65°F)		 17°C
(64°F)		 15°C
(59°F)		 11°C
(53°F)		 13°C
(55°F)		 10°C
(50°F)		 10°C
(50°F)		 13°C
(56°F)		 15°C
(58°F)		 14°C
(57°F)		 17°C
(62°F)
Minimum 17°C
(63°F)		 18°C
(64°F)		 15°C
(60°F)		 13°C
(56°F)		 9°C
(49°F)		 10°C
(50°F)		 7°C
(45°F)		 8°C
(46°F)		 11°C
(52°F)		 13°C
(56°F)		 11°C
(53°F)		 14°C
(57°F)

Compare climate in Petropolis with other places

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

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

Petropolis usually has the most precipitation in February, November and December, with an average of 21 rainy days and 280 mm (11.0 inches) of precipitation per month.The driest months in Petropolis are June, July and August. On average, 46 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Petropolis, 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) 212 (8.3) 302 (11.9) 209 (8.2) 92 (3.6) 64 (2.5) 45 (1.8) 30 (1.2) 63 (2.5) 67 (2.6) 142 (5.6) 250 (9.9) 288 (11.3)
Average precipitation days (≥ 1 mm) 18 20 21 15 9 9 5 9 10 18 19 24

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

The sunniest months in Petropolis are March, September and December, when the sun shines an average of 10 hours 0 minutes a day.Least sunny months in Petropolis: 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 Petropolis, 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 269 269 310 294 283 279 295 277 297 278 281 312
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 Petropolis, Rio de Janeiro, Brazil §

Petropolis experiences the highest level of ultraviolet (UV) radiation in January, February and December, when the maximum UV index can reach values of 15 - 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 Petropolis UV Index data.

Average daily maximum UV levels by month for Petropolis, 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 15 13 11 8 6 7 9 12 13 14 15