nomadseason

Monthly climate in Viana, Brazil

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Viana features a tropical savanna climate (Aw). Temperatures typically range between 21 °C (69 °F) and 26 °C (80 °F) through the year, but rarely can drop to 13 °C (56 °F) or can rise to as high as 35 °C (95 °F). The average annual precipitation amounts to about 1270 mm (50.0 inches) and receives 145 rainy days on the 1 mm (0.04 inches) threshold annually. Viana enjoys an average of 3582 hours of sunshine throughout the year, and daylight varies from 10 hours 54 minutes to 13 hours 19 minutes per day.

Monthly average temperatures in Viana, Brazil

The warmest months in Viana are January, February and March, with daily mean temperatures ranging from 26 to 26 °C (79 - 80 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 21 to 22 °C (69 - 72 °F) throughout the day. On average each year, Viana experiences 250 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 Viana. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum34°C
(93°F)		34°C
(94°F)		35°C
(95°F)		34°C
(93°F)		32°C
(90°F)		32°C
(90°F)		31°C
(88°F)		29°C
(85°F)		32°C
(90°F)		32°C
(91°F)		35°C
(95°F)		32°C
(91°F)
Mean maximum33°C
(92°F)		33°C
(92°F)		34°C
(93°F)		33°C
(91°F)		31°C
(88°F)		30°C
(86°F)		29°C
(84°F)		29°C
(84°F)		31°C
(88°F)		31°C
(89°F)		33°C
(91°F)		32°C
(90°F)
Average high30°C
(87°F)		30°C
(86°F)		30°C
(86°F)		28°C
(83°F)		26°C
(80°F)		26°C
(79°F)		25°C
(77°F)		24°C
(76°F)		26°C
(80°F)		27°C
(81°F)		27°C
(80°F)		29°C
(84°F)
Daily mean26°C
(80°F)		26°C
(79°F)		26°C
(79°F)		24°C
(76°F)		22°C
(73°F)		22°C
(72°F)		21°C
(69°F)		21°C
(70°F)		23°C
(73°F)		23°C
(75°F)		24°C
(75°F)		25°C
(77°F)
Average low23°C
(74°F)		23°C
(74°F)		23°C
(73°F)		21°C
(71°F)		19°C
(67°F)		19°C
(66°F)		17°C
(63°F)		18°C
(64°F)		20°C
(67°F)		21°C
(70°F)		21°C
(70°F)		22°C
(72°F)
Mean minimum21°C
(71°F)		21°C
(70°F)		20°C
(69°F)		19°C
(66°F)		16°C
(61°F)		16°C
(62°F)		15°C
(58°F)		14°C
(58°F)		17°C
(62°F)		18°C
(64°F)		18°C
(65°F)		20°C
(67°F)
Minimum21°C
(69°F)		20°C
(69°F)		19°C
(67°F)		18°C
(65°F)		13°C
(56°F)		14°C
(58°F)		14°C
(57°F)		14°C
(57°F)		15°C
(60°F)		17°C
(63°F)		16°C
(61°F)		18°C
(65°F)

Compare climate in Viana with other places

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

Monthly average precipitation in Viana, Brazil

Viana usually has the most precipitation in February, November and December, with an average of 15 rainy days and 183 mm (7.2 inches) of precipitation per month. The driest months in Viana are June, July and August. On average, 44 mm (1.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Viana. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)76 (3.0)176 (6.9)131 (5.2)120 (4.7)76 (3.0)44 (1.7)31 (1.2)57 (2.2)65 (2.6)123 (4.8)185 (7.3)188 (7.4)
Average precipitation days (≥ 1 mm)8141415129898151815

Monthly sunshine hours in Viana, Brazil

The sunniest months in Viana are March, July and December, when the sun shines an average of 10 hours 9 minutes a day. Least sunny months in Viana: January, February and November receive an average of 9 hours 19 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Viana. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours289279315307292294310294309300269318
Mean daily daylight hours13h 11m12h 44m12h 10m11h 35m11h 7m10h 54m11h 1m11h 26m11h 58m12h 33m13h 4m13h 19m

Solar UV radiation in Viana, Brazil

Viana experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 14 - 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 Viana UV Index data.

Average daily maximum UV levels by month for Viana. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)151413118781012131415