nomadseason

Monthly climate in Boa Vista, Brazil

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Boa Vista features a tropical monsoon climate (Am). Temperatures typically range between 26 °C (79 °F) and 29 °C (84 °F) through the year, but rarely can drop to 21 °C (71 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 1951 mm (76.8 inches) and receives 201 rainy days on the 1 mm (0.04 inches) threshold annually. Boa Vista enjoys an average of 3432 hours of sunshine throughout the year, and daylight varies from 11 hours 57 minutes to 12 hours 16 minutes per day.

Monthly average temperatures in Boa Vista, Brazil

The warmest months in Boa Vista are March, October and November, with daily mean temperatures ranging from 29 to 29 °C (84 - 84 °F) throughout the day. The coldest temperatures usually occur in May, June and July, when daily mean temperatures range from 26 to 27 °C (79 - 80 °F) throughout the day. On average each year, Boa Vista experiences 329 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 Boa Vista. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum36°C
(98°F)		36°C
(97°F)		37°C
(99°F)		37°C
(99°F)		36°C
(97°F)		33°C
(92°F)		33°C
(92°F)		34°C
(94°F)		35°C
(95°F)		36°C
(98°F)		37°C
(99°F)		36°C
(97°F)
Mean maximum35°C
(95°F)		35°C
(95°F)		35°C
(96°F)		35°C
(95°F)		33°C
(92°F)		32°C
(89°F)		32°C
(90°F)		34°C
(93°F)		35°C
(95°F)		35°C
(96°F)		35°C
(96°F)		34°C
(93°F)
Average high33°C
(91°F)		33°C
(92°F)		33°C
(92°F)		32°C
(90°F)		30°C
(86°F)		30°C
(86°F)		29°C
(85°F)		31°C
(88°F)		33°C
(91°F)		33°C
(92°F)		33°C
(92°F)		32°C
(90°F)
Daily mean28°C
(83°F)		29°C
(84°F)		29°C
(84°F)		28°C
(83°F)		27°C
(80°F)		26°C
(80°F)		26°C
(79°F)		27°C
(81°F)		28°C
(83°F)		29°C
(84°F)		29°C
(84°F)		28°C
(83°F)
Average low24°C
(76°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		24°C
(75°F)		24°C
(75°F)		23°C
(74°F)		24°C
(75°F)		24°C
(76°F)		25°C
(77°F)		25°C
(77°F)		25°C
(76°F)
Mean minimum23°C
(73°F)		23°C
(74°F)		24°C
(75°F)		23°C
(74°F)		23°C
(74°F)		23°C
(73°F)		22°C
(72°F)		22°C
(73°F)		23°C
(74°F)		23°C
(74°F)		24°C
(75°F)		23°C
(74°F)
Minimum22°C
(72°F)		23°C
(73°F)		23°C
(73°F)		22°C
(73°F)		22°C
(72°F)		22°C
(72°F)		21°C
(71°F)		22°C
(71°F)		23°C
(73°F)		23°C
(73°F)		23°C
(73°F)		23°C
(73°F)

Compare climate in Boa Vista with other places

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

Monthly average precipitation in Boa Vista, Brazil

Boa Vista usually has the most precipitation in May, June and July, with an average of 28 rainy days and 349 mm (13.8 inches) of precipitation per month. The driest months in Boa Vista are January, February and March. On average, 52 mm (2.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Boa Vista. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)52 (2.1)33 (1.3)70 (2.7)164 (6.5)384 (15.1)360 (14.2)304 (12.0)183 (7.2)119 (4.7)71 (2.8)135 (5.3)75 (3.0)
Average precipitation days (≥ 1 mm)7510152828282217111713

Monthly sunshine hours in Boa Vista, Brazil

The sunniest months in Boa Vista are August, September and October, when the sun shines an average of 10 hours 13 minutes a day. Least sunny months in Boa Vista: January, May and June receive an average of 8 hours 7 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Boa Vista. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours259284306278244243283314311313284307
Mean daily daylight hours11h 57m12h 0m12h 5m12h 9m12h 14m12h 16m12h 15m12h 11m12h 6m12h 2m11h 58m11h 57m

Solar UV radiation in Boa Vista, Brazil

Boa Vista 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. June, July and October are in the Extreme exposure category. In these months, the maximum values of the UV index do not exceed 13. For more detailed information, check out our hourly Boa Vista UV Index data.

Average daily maximum UV levels by month for Boa Vista. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)141516161413121313131313