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Monthly climate in Araruama, Brazil

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Araruama features a tropical savanna climate (Aw). Temperatures typically range between 21 °C (70 °F) and 26 °C (80 °F) through the year, but rarely can drop to 14 °C (58 °F) or can rise to as high as 33 °C (92 °F). The average annual precipitation amounts to about 1267 mm (49.9 inches) and receives 146 rainy days on the 1 mm (0.04 inches) threshold annually. Araruama enjoys an average of 3586 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 Araruama, Brazil

The warmest months in Araruama 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 (70 - 72 °F) throughout the day. On average each year, Araruama experiences 230 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 Araruama. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum33°C
(92°F)		33°C
(92°F)		33°C
(91°F)		33°C
(91°F)		32°C
(89°F)		31°C
(88°F)		31°C
(88°F)		32°C
(90°F)		32°C
(91°F)		33°C
(92°F)		33°C
(91°F)		31°C
(89°F)
Mean maximum33°C
(91°F)		32°C
(89°F)		32°C
(90°F)		32°C
(90°F)		30°C
(87°F)		28°C
(83°F)		29°C
(84°F)		30°C
(86°F)		31°C
(88°F)		31°C
(89°F)		31°C
(88°F)		31°C
(88°F)
Average high29°C
(85°F)		28°C
(83°F)		29°C
(84°F)		27°C
(81°F)		26°C
(78°F)		25°C
(78°F)		24°C
(76°F)		24°C
(76°F)		26°C
(79°F)		26°C
(79°F)		26°C
(78°F)		27°C
(81°F)
Daily mean26°C
(80°F)		26°C
(79°F)		26°C
(79°F)		24°C
(76°F)		23°C
(73°F)		22°C
(72°F)		21°C
(70°F)		21°C
(70°F)		23°C
(73°F)		23°C
(74°F)		23°C
(74°F)		25°C
(77°F)
Average low24°C
(75°F)		24°C
(75°F)		23°C
(74°F)		22°C
(72°F)		20°C
(68°F)		19°C
(67°F)		18°C
(65°F)		18°C
(66°F)		20°C
(69°F)		21°C
(70°F)		21°C
(71°F)		23°C
(73°F)
Mean minimum22°C
(72°F)		22°C
(71°F)		21°C
(71°F)		19°C
(67°F)		17°C
(63°F)		17°C
(63°F)		16°C
(60°F)		16°C
(60°F)		18°C
(64°F)		18°C
(65°F)		18°C
(65°F)		19°C
(67°F)
Minimum21°C
(69°F)		21°C
(69°F)		20°C
(68°F)		18°C
(65°F)		16°C
(61°F)		16°C
(61°F)		14°C
(58°F)		14°C
(58°F)		16°C
(61°F)		17°C
(62°F)		17°C
(63°F)		18°C
(65°F)

Compare climate in Araruama with other places

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

Monthly average precipitation in Araruama, Brazil

Araruama usually has the most precipitation in March, November and December, with an average of 16 rainy days and 182 mm (7.2 inches) of precipitation per month. The driest months in Araruama are June, July and September. On average, 46 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Araruama. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)102 (4.0)156 (6.1)172 (6.8)80 (3.1)72 (2.9)43 (1.7)32 (1.3)68 (2.7)61 (2.4)107 (4.2)192 (7.6)181 (7.1)
Average precipitation days (≥ 1 mm)11161612109798151617

Monthly sunshine hours in Araruama, Brazil

The sunniest months in Araruama are March, November and December, when the sun shines an average of 10 hours 25 minutes a day. Least sunny months in Araruama: January, February and June receive an average of 9 hours 27 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Araruama. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours286280321303287283294288304296304333
Mean daily daylight hours13h 20m12h 50m12h 11m11h 31m10h 59m10h 44m10h 52m11h 20m11h 57m12h 37m13h 12m13h 30m

Solar UV radiation in Araruama, Brazil

Araruama 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 Araruama UV Index data.

Average daily maximum UV levels by month for Araruama. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)16141311867911131415