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Monthly climate in Arraial do Cabo, Rio de Janeiro, Brazil

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Arraial do Cabo features a tropical savanna climate (Aw). Temperatures typically range between 21 °C (70 °F) and 25 °C (78 °F) through the year, but rarely can drop to 17 °C (63 °F) or can rise to as high as 29 °C (84 °F). The average annual precipitation amounts to about 801 mm (31.5 inches) and receives 107 rainy days on the 1 mm (0.04 inches) threshold annually. Arraial do Cabo enjoys an average of 3609 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 Arraial do Cabo, Rio de Janeiro, Brazil §

The warmest months in Arraial do Cabo are January, February and March, with daily mean temperatures ranging from 25 to 25 °C (77 - 78 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 21 to 22 °C (70 - 72 °F) throughout the day. On average each year, Arraial do Cabo experiences 104 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 Arraial do Cabo, 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 28°C
(83°F)		 29°C
(84°F)		 29°C
(84°F)		 28°C
(83°F)		 27°C
(82°F)		 27°C
(80°F)		 26°C
(79°F)		 26°C
(78°F)		 26°C
(78°F)		 26°C
(79°F)		 27°C
(80°F)		 27°C
(80°F)
Mean maximum 27°C
(81°F)		 27°C
(81°F)		 28°C
(82°F)		 28°C
(82°F)		 26°C
(80°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(78°F)		 26°C
(78°F)		 26°C
(80°F)
Average high 26°C
(78°F)		 26°C
(78°F)		 26°C
(79°F)		 25°C
(77°F)		 24°C
(75°F)		 23°C
(74°F)		 22°C
(72°F)		 22°C
(72°F)		 23°C
(73°F)		 23°C
(74°F)		 23°C
(74°F)		 25°C
(77°F)
Daily mean 25°C
(77°F)		 25°C
(77°F)		 25°C
(78°F)		 24°C
(76°F)		 23°C
(74°F)		 22°C
(73°F)		 21°C
(71°F)		 21°C
(70°F)		 22°C
(72°F)		 22°C
(73°F)		 23°C
(73°F)		 24°C
(75°F)
Average low 24°C
(76°F)		 24°C
(76°F)		 25°C
(76°F)		 24°C
(75°F)		 22°C
(72°F)		 22°C
(71°F)		 21°C
(69°F)		 20°C
(69°F)		 21°C
(70°F)		 22°C
(71°F)		 22°C
(72°F)		 23°C
(74°F)
Mean minimum 23°C
(73°F)		 22°C
(73°F)		 23°C
(74°F)		 22°C
(72°F)		 20°C
(69°F)		 21°C
(69°F)		 18°C
(66°F)		 19°C
(66°F)		 20°C
(68°F)		 20°C
(68°F)		 20°C
(69°F)		 22°C
(71°F)
Minimum 21°C
(71°F)		 21°C
(70°F)		 22°C
(72°F)		 21°C
(70°F)		 19°C
(66°F)		 19°C
(67°F)		 17°C
(63°F)		 17°C
(63°F)		 19°C
(67°F)		 18°C
(64°F)		 20°C
(68°F)		 21°C
(70°F)

Compare climate in Arraial do Cabo with other places

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

Monthly average precipitation in Arraial do Cabo, Rio de Janeiro, Brazil §

Arraial do Cabo usually has the most precipitation in March, November and December, with an average of 11 rainy days and 112 mm (4.4 inches) of precipitation per month. The driest months in Arraial do Cabo are January, June and July. On average, 36 mm (1.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Arraial do Cabo, 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) 38 (1.5) 77 (3.0) 126 (5.0) 51 (2.0) 73 (2.9) 41 (1.6) 27 (1.1) 50 (2.0) 41 (1.6) 67 (2.6) 109 (4.3) 101 (4.0)
Average precipitation days (≥ 1 mm) 4 9 11 12 9 8 6 9 5 11 13 10

Monthly sunshine hours in Arraial do Cabo, Rio de Janeiro, Brazil §

The sunniest months in Arraial do Cabo are March, November and December, when the sun shines an average of 10 hours 30 minutes a day. Least sunny months in Arraial do Cabo: February, May and June receive an average of 9 hours 32 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Arraial do Cabo, 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 289 284 324 305 289 284 295 290 304 298 306 335
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 Arraial do Cabo, Rio de Janeiro, Brazil §

Arraial do Cabo 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 Arraial do Cabo UV Index data.

Average daily maximum UV levels by month for Arraial do Cabo, 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 Arraial do Cabo, Rio de Janeiro, Brazil

Discover in-depth weather details for every month in Arraial do Cabo. 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 Arraial do Cabo'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.