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Monthly climate in Arraias, Brazil

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Arraias features a tropical savanna climate (Aw). Temperatures typically range between 23 °C (74 °F) and 28 °C (82 °F) through the year, but rarely can drop to 12 °C (54 °F) or can rise to as high as 38 °C (101 °F). The average annual precipitation amounts to about 1593 mm (62.7 inches) and receives 139 rainy days on the 1 mm (0.04 inches) threshold annually. Arraias enjoys an average of 3617 hours of sunshine throughout the year, and daylight varies from 11 hours 21 minutes to 12 hours 51 minutes per day.

Monthly average temperatures in Arraias, Brazil

The warmest months in Arraias are August, September and October, with daily mean temperatures ranging from 25 to 28 °C (78 - 82 °F) throughout the day. The coldest temperatures usually occur in February, June and July, when daily mean temperatures range from 23 to 24 °C (74 - 76 °F) throughout the day. On average each year, Arraias experiences 322 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 Arraias. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum35°C
(95°F)		35°C
(94°F)		34°C
(94°F)		34°C
(94°F)		33°C
(92°F)		34°C
(93°F)		33°C
(93°F)		35°C
(95°F)		38°C
(101°F)		38°C
(101°F)		36°C
(98°F)		34°C
(94°F)
Mean maximum34°C
(93°F)		33°C
(91°F)		33°C
(91°F)		32°C
(91°F)		32°C
(91°F)		33°C
(91°F)		32°C
(91°F)		34°C
(94°F)		37°C
(99°F)		37°C
(99°F)		34°C
(94°F)		33°C
(92°F)
Average high30°C
(86°F)		29°C
(84°F)		29°C
(85°F)		30°C
(86°F)		30°C
(87°F)		30°C
(87°F)		30°C
(86°F)		32°C
(90°F)		34°C
(93°F)		33°C
(92°F)		30°C
(86°F)		29°C
(85°F)
Daily mean25°C
(77°F)		24°C
(76°F)		25°C
(77°F)		25°C
(77°F)		25°C
(76°F)		24°C
(75°F)		23°C
(74°F)		25°C
(78°F)		27°C
(82°F)		28°C
(82°F)		25°C
(77°F)		25°C
(77°F)
Average low21°C
(70°F)		21°C
(70°F)		21°C
(70°F)		21°C
(70°F)		19°C
(67°F)		19°C
(66°F)		17°C
(63°F)		19°C
(67°F)		21°C
(70°F)		22°C
(73°F)		21°C
(70°F)		21°C
(70°F)
Mean minimum19°C
(67°F)		20°C
(67°F)		20°C
(68°F)		19°C
(66°F)		16°C
(61°F)		16°C
(61°F)		15°C
(59°F)		16°C
(61°F)		18°C
(65°F)		20°C
(69°F)		20°C
(68°F)		19°C
(67°F)
Minimum19°C
(66°F)		19°C
(67°F)		18°C
(65°F)		18°C
(65°F)		12°C
(54°F)		14°C
(57°F)		13°C
(56°F)		15°C
(59°F)		17°C
(62°F)		20°C
(67°F)		19°C
(66°F)		19°C
(66°F)

Compare climate in Arraias with other places

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

Monthly average precipitation in Arraias, Brazil

Arraias usually has the most precipitation in February, March and December, with an average of 23 rainy days and 295 mm (11.6 inches) of precipitation per month. The driest months in Arraias are June, July and September. On average, 1 mm (0.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Arraias. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)189 (7.4)329 (13.0)258 (10.2)156 (6.1)12 (0.5)0 (0.0)0 (0.0)4 (0.2)2 (0.1)92 (3.6)252 (9.9)299 (11.8)
Average precipitation days (≥ 1 mm)1624231620010132123

Monthly sunshine hours in Arraias, Brazil

The sunniest months in Arraias are July, August and September, when the sun shines an average of 10 hours 57 minutes a day. Least sunny months in Arraias: January, February and March receive an average of 8 hours 32 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Arraias. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours254247275305331318335340332316280279
Mean daily daylight hours12h 46m12h 29m12h 8m11h 47m11h 29m11h 21m11h 26m11h 41m12h 1m12h 22m12h 42m12h 51m

Solar UV radiation in Arraias, Brazil

Arraias experiences the highest level of ultraviolet (UV) radiation in January, November and December, 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 Arraias UV Index data.

Average daily maximum UV levels by month for Arraias. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)16151413119101213151515