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Monthly climate in Pirai, Rio de Janeiro, Brazil

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Pirai features a tropical savanna climate (Aw). Temperatures typically range between 19 °C (66 °F) and 25 °C (78 °F) through the year, but rarely can drop to 8 °C (46 °F) or can rise to as high as 38 °C (100 °F). The average annual precipitation amounts to about 1648 mm (64.9 inches) and receives 180 rainy days on the 1 mm (0.04 inches) threshold annually. Pirai enjoys an average of 3269 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 Pirai, Rio de Janeiro, Brazil §

The warmest months in Pirai are January, February and March, with daily mean temperatures ranging from 24 to 25 °C (76 - 78 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 19 to 20 °C (66 - 68 °F) throughout the day. On average each year, Pirai 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 Pirai, 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 36°C
(96°F)		 35°C
(95°F)		 34°C
(94°F)		 34°C
(94°F)		 31°C
(88°F)		 32°C
(89°F)		 31°C
(87°F)		 33°C
(91°F)		 36°C
(97°F)		 38°C
(100°F)		 35°C
(94°F)		 35°C
(94°F)
Mean maximum 35°C
(95°F)		 34°C
(93°F)		 33°C
(92°F)		 32°C
(90°F)		 30°C
(87°F)		 29°C
(85°F)		 29°C
(85°F)		 32°C
(90°F)		 35°C
(95°F)		 35°C
(95°F)		 34°C
(93°F)		 33°C
(92°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
(76°F)		 27°C
(81°F)		 27°C
(80°F)		 26°C
(79°F)		 28°C
(82°F)
Daily mean 25°C
(78°F)		 24°C
(76°F)		 24°C
(76°F)		 22°C
(73°F)		 20°C
(69°F)		 20°C
(68°F)		 19°C
(66°F)		 19°C
(67°F)		 22°C
(71°F)		 22°C
(73°F)		 22°C
(72°F)		 24°C
(75°F)
Average low 22°C
(72°F)		 21°C
(71°F)		 21°C
(70°F)		 19°C
(66°F)		 17°C
(62°F)		 16°C
(61°F)		 14°C
(58°F)		 15°C
(60°F)		 18°C
(64°F)		 19°C
(67°F)		 19°C
(67°F)		 21°C
(69°F)
Mean minimum 20°C
(67°F)		 19°C
(66°F)		 18°C
(65°F)		 16°C
(61°F)		 12°C
(54°F)		 13°C
(56°F)		 11°C
(52°F)		 11°C
(52°F)		 14°C
(58°F)		 15°C
(60°F)		 15°C
(60°F)		 17°C
(63°F)
Minimum 18°C
(64°F)		 18°C
(65°F)		 16°C
(61°F)		 14°C
(58°F)		 10°C
(50°F)		 11°C
(52°F)		 8°C
(46°F)		 8°C
(46°F)		 13°C
(55°F)		 14°C
(58°F)		 13°C
(56°F)		 15°C
(59°F)

Compare climate in Pirai with other places

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

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

Pirai usually has the most precipitation in January, February and December, with an average of 21 rainy days and 242 mm (9.5 inches) of precipitation per month. The driest months in Pirai are June, July and September. On average, 45 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Pirai, 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) 245 (9.6) 246 (9.7) 223 (8.8) 103 (4.1) 75 (3.0) 40 (1.6) 31 (1.2) 64 (2.5) 63 (2.5) 134 (5.3) 190 (7.5) 236 (9.3)
Average precipitation days (≥ 1 mm) 18 21 20 16 11 9 5 10 9 18 19 24

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

The sunniest months in Pirai are March, July and December, when the sun shines an average of 9 hours 20 minutes a day. Least sunny months in Pirai: January, February and October receive an average of 8 hours 21 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Pirai, 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 246 256 292 284 279 268 287 261 284 258 262 287
Mean daily daylight hours 13h 19m 12h 49m 12h 10m 11h 32m 11h 0m 10h 45m 10h 53m 11h 21m 11h 57m 12h 37m 13h 11m 13h 29m

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

Pirai experiences the highest level of ultraviolet (UV) radiation in January, February 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 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 Pirai UV Index data.

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

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

Discover in-depth weather details for every month in Pirai. 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 Pirai'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.