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Monthly climate in Cacoal, Rondônia, Brazil

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Cacoal features a tropical savanna climate (Aw).Temperatures typically range between 25 °C (77 °F) and 28 °C (82 °F) through the year, but rarely can drop to 10 °C (51 °F) or can rise to as high as 38 °C (100 °F).The average annual precipitation amounts to about 1857 mm (73.1 inches) and receives 203 rainy days on the 1 mm (0.04 inches) threshold annually.Cacoal enjoys an average of 3323 hours of sunshine throughout the year, and daylight varies from 11 hours 27 minutes to 12 hours 46 minutes per day.

Monthly average temperatures in Cacoal, Rondônia, Brazil §

The warmest months in Cacoal are August, September and October, with daily mean temperatures ranging from 27 to 28 °C (80 - 82 °F) throughout the day. The coldest temperatures usually occur in May, June and July, when daily mean temperatures range from 25 to 25 °C (77 - 77 °F) throughout the day. On average each year, Cacoal experiences 325 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 Cacoal, Rondônia, 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)		 34°C
(93°F)		 33°C
(92°F)		 33°C
(92°F)		 34°C
(93°F)		 34°C
(93°F)		 35°C
(96°F)		 37°C
(99°F)		 38°C
(100°F)		 37°C
(98°F)		 35°C
(95°F)		 34°C
(93°F)
Mean maximum 33°C
(91°F)		 33°C
(91°F)		 32°C
(91°F)		 33°C
(91°F)		 33°C
(91°F)		 33°C
(92°F)		 35°C
(95°F)		 36°C
(98°F)		 37°C
(99°F)		 36°C
(97°F)		 34°C
(94°F)		 33°C
(92°F)
Average high 30°C
(86°F)		 29°C
(85°F)		 30°C
(86°F)		 30°C
(87°F)		 30°C
(87°F)		 31°C
(88°F)		 32°C
(91°F)		 34°C
(93°F)		 34°C
(94°F)		 33°C
(91°F)		 31°C
(88°F)		 30°C
(86°F)
Daily mean 25°C
(78°F)		 25°C
(78°F)		 25°C
(78°F)		 26°C
(78°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(77°F)		 27°C
(80°F)		 28°C
(82°F)		 27°C
(81°F)		 26°C
(79°F)		 25°C
(78°F)
Average low 23°C
(73°F)		 23°C
(73°F)		 23°C
(73°F)		 23°C
(73°F)		 21°C
(71°F)		 20°C
(68°F)		 19°C
(66°F)		 21°C
(70°F)		 23°C
(73°F)		 23°C
(74°F)		 23°C
(73°F)		 23°C
(73°F)
Mean minimum 22°C
(71°F)		 22°C
(71°F)		 22°C
(71°F)		 20°C
(68°F)		 17°C
(62°F)		 17°C
(64°F)		 14°C
(58°F)		 15°C
(60°F)		 20°C
(69°F)		 21°C
(71°F)		 22°C
(72°F)		 22°C
(71°F)
Minimum 21°C
(70°F)		 21°C
(70°F)		 21°C
(71°F)		 18°C
(65°F)		 13°C
(56°F)		 13°C
(56°F)		 10°C
(51°F)		 12°C
(55°F)		 17°C
(63°F)		 21°C
(70°F)		 22°C
(71°F)		 21°C
(71°F)

Compare climate in Cacoal with other places

Compare temperature, precipitation, sunshine, UV index in Cacoal, Rondônia, Brazil with other places around the world.

Monthly average precipitation in Cacoal, Rondônia, Brazil §

Cacoal usually has the most precipitation in February, November and December, with an average of 27 rainy days and 305 mm (12.0 inches) of precipitation per month.The driest months in Cacoal are June, July and August. On average, 11 mm (0.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Cacoal, Rondônia, 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) 222 (8.7) 330 (13.0) 279 (11.0) 163 (6.4) 70 (2.8) 14 (0.5) 1 (0.0) 20 (0.8) 52 (2.0) 121 (4.8) 300 (11.8) 284 (11.2)
Average precipitation days (≥ 1 mm) 24 27 28 24 11 2 0 4 9 20 25 29

Monthly sunshine hours in Cacoal, Rondônia, Brazil §

The sunniest months in Cacoal are June, July and August, when the sun shines an average of 10 hours 39 minutes a day.Least sunny months in Cacoal: January, February and December receive an average of 7 hours 7 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Cacoal, Rondônia, 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 209 204 256 270 309 316 338 326 307 301 249 234
Mean daily daylight hours 12h 41m 12h 26m 12h 8m 11h 49m 11h 34m 11h 27m 11h 30m 11h 44m 12h 1m 12h 20m 12h 37m 12h 46m

Solar UV radiation in Cacoal, Rondônia, Brazil §

Cacoal experiences the highest level of ultraviolet (UV) radiation in February, March and April, 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 Very High / Extreme exposure category. In these months, the maximum values of the UV index do not exceed 11. For more detailed information, check out our hourly Cacoal UV Index data.

Average daily maximum UV levels by month for Cacoal, Rondônia, 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 16 16 15 11 10 10 11 12 14 15 15