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Monthly climate in Fonte Boa, Brazil

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Fonte Boa features a tropical rainforest climate (Af). Temperatures typically range between 26 °C (79 °F) and 27 °C (81 °F) through the year, but rarely can drop to 19 °C (67 °F) or can rise to as high as 35 °C (95 °F). The average annual precipitation amounts to about 3018 mm (118.8 inches) and receives 304 rainy days on the 1 mm (0.04 inches) threshold annually. Fonte Boa enjoys an average of 3170 hours of sunshine throughout the year, and daylight varies from 11 hours 58 minutes to 12 hours 15 minutes per day.

Monthly average temperatures in Fonte Boa, Brazil

The warmest months in Fonte Boa are September, October and November, with daily mean temperatures ranging from 27 to 27 °C (81 - 81 °F) throughout the day. The coldest temperatures usually occur in May, June and July, when daily mean temperatures range from 26 to 26 °C (79 - 79 °F) throughout the day. On average each year, Fonte Boa experiences 328 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 Fonte Boa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum34°C
(93°F)		34°C
(93°F)		34°C
(94°F)		33°C
(92°F)		33°C
(91°F)		32°C
(90°F)		32°C
(90°F)		35°C
(95°F)		34°C
(94°F)		35°C
(95°F)		34°C
(93°F)		33°C
(93°F)
Mean maximum33°C
(91°F)		33°C
(92°F)		33°C
(92°F)		33°C
(91°F)		32°C
(90°F)		31°C
(89°F)		32°C
(89°F)		33°C
(92°F)		34°C
(93°F)		34°C
(93°F)		33°C
(93°F)		33°C
(91°F)
Average high30°C
(87°F)		30°C
(87°F)		30°C
(87°F)		30°C
(86°F)		30°C
(86°F)		30°C
(85°F)		30°C
(86°F)		31°C
(88°F)		31°C
(89°F)		31°C
(89°F)		31°C
(88°F)		30°C
(87°F)
Daily mean26°C
(80°F)		27°C
(80°F)		27°C
(80°F)		26°C
(80°F)		26°C
(79°F)		26°C
(79°F)		26°C
(79°F)		27°C
(80°F)		27°C
(81°F)		27°C
(81°F)		27°C
(81°F)		26°C
(80°F)
Average low24°C
(75°F)		24°C
(76°F)		24°C
(76°F)		24°C
(75°F)		24°C
(75°F)		23°C
(74°F)		23°C
(74°F)		24°C
(75°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(75°F)
Mean minimum23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		23°C
(73°F)		23°C
(73°F)		22°C
(72°F)		21°C
(71°F)		22°C
(71°F)		23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		23°C
(74°F)
Minimum23°C
(73°F)		23°C
(73°F)		23°C
(73°F)		22°C
(72°F)		22°C
(71°F)		21°C
(70°F)		19°C
(67°F)		20°C
(68°F)		23°C
(73°F)		23°C
(73°F)		23°C
(73°F)		23°C
(73°F)

Compare climate in Fonte Boa with other places

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

Monthly average precipitation in Fonte Boa, Brazil

Fonte Boa usually has the most precipitation in April, May and December, with an average of 29 rainy days and 376 mm (14.8 inches) of precipitation per month. The driest months in Fonte Boa are July, August and September. On average, 138 mm (5.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Fonte Boa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)246 (9.7)260 (10.3)287 (11.3)369 (14.5)421 (16.6)250 (9.9)147 (5.8)122 (4.8)146 (5.7)182 (7.2)251 (9.9)337 (13.3)
Average precipitation days (≥ 1 mm)232227283027232121262630

Monthly sunshine hours in Fonte Boa, Brazil

The sunniest months in Fonte Boa are July, August and September, when the sun shines an average of 9 hours 58 minutes a day. Least sunny months in Fonte Boa: January, April and May receive an average of 7 hours 29 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Fonte Boa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours212244250235241276307316293288252249
Mean daily daylight hours12h 14m12h 10m12h 6m12h 2m11h 59m11h 58m11h 58m12h 1m12h 4m12h 9m12h 13m12h 15m

Solar UV radiation in Fonte Boa, Brazil

Fonte Boa 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 August are in the Extreme exposure category. In these months, the maximum values of the UV index do not exceed 12. For more detailed information, check out our hourly Fonte Boa UV Index data.

Average daily maximum UV levels by month for Fonte Boa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)141516161312111213141313