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Monthly climate in Boi, Nigeria

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Boi features a tropical savanna climate (Aw). Temperatures typically range between 21 °C (71 °F) and 28 °C (83 °F) through the year, but rarely can drop to 9 °C (49 °F) or can rise to as high as 38 °C (101 °F). The average annual precipitation amounts to about 860 mm (33.9 inches) and receives 123 rainy days on the 1 mm (0.04 inches) threshold annually. Boi enjoys an average of 3822 hours of sunshine throughout the year, and daylight varies from 11 hours 33 minutes to 12 hours 39 minutes per day.

Monthly average temperatures in Boi, Nigeria

The warmest months in Boi are March, April and May, with daily mean temperatures ranging from 27 to 28 °C (80 - 83 °F) throughout the day. The coldest temperatures usually occur in January, August and December, when daily mean temperatures range from 21 to 23 °C (71 - 73 °F) throughout the day. On average each year, Boi experiences 321 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 Boi. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum34°C
(94°F)		37°C
(99°F)		38°C
(101°F)		38°C
(100°F)		36°C
(98°F)		34°C
(93°F)		31°C
(88°F)		29°C
(85°F)		31°C
(88°F)		32°C
(91°F)		33°C
(92°F)		33°C
(92°F)
Mean maximum33°C
(91°F)		34°C
(93°F)		37°C
(100°F)		37°C
(100°F)		35°C
(96°F)		32°C
(90°F)		30°C
(86°F)		29°C
(84°F)		30°C
(86°F)		31°C
(89°F)		32°C
(90°F)		32°C
(89°F)
Average high29°C
(84°F)		31°C
(87°F)		35°C
(95°F)		35°C
(95°F)		32°C
(90°F)		29°C
(85°F)		27°C
(82°F)		27°C
(80°F)		28°C
(82°F)		29°C
(85°F)		31°C
(88°F)		29°C
(85°F)
Daily mean21°C
(71°F)		23°C
(74°F)		27°C
(81°F)		28°C
(83°F)		27°C
(80°F)		25°C
(77°F)		23°C
(74°F)		23°C
(73°F)		23°C
(74°F)		24°C
(75°F)		24°C
(75°F)		22°C
(72°F)
Average low15°C
(59°F)		17°C
(62°F)		20°C
(68°F)		22°C
(73°F)		22°C
(72°F)		21°C
(70°F)		20°C
(68°F)		20°C
(68°F)		20°C
(67°F)		19°C
(67°F)		17°C
(63°F)		15°C
(60°F)
Mean minimum12°C
(53°F)		13°C
(56°F)		17°C
(62°F)		19°C
(67°F)		20°C
(69°F)		19°C
(67°F)		19°C
(66°F)		18°C
(64°F)		18°C
(65°F)		17°C
(62°F)		15°C
(59°F)		13°C
(55°F)
Minimum9°C
(49°F)		12°C
(53°F)		16°C
(61°F)		17°C
(62°F)		19°C
(67°F)		18°C
(65°F)		18°C
(65°F)		17°C
(63°F)		17°C
(63°F)		15°C
(59°F)		14°C
(57°F)		11°C
(52°F)

Compare climate in Boi with other places

Compare temperature, precipitation, sunshine, UV index in Boi, Nigeria with other places around the world.

Monthly average precipitation in Boi, Nigeria

Boi usually has the most precipitation in July, August and September, with an average of 25 rainy days and 200 mm (7.9 inches) of precipitation per month. The driest months in Boi are January, November and December. On average, 0 mm (0.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Boi. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)0 (0.0)7 (0.3)2 (0.1)14 (0.5)70 (2.8)112 (4.4)202 (8.0)238 (9.4)158 (6.2)56 (2.2)0 (0.0)0 (0.0)
Average precipitation days (≥ 1 mm)010313192726231100

Monthly sunshine hours in Boi, Nigeria

The sunniest months in Boi are May, July and December, when the sun shines an average of 10 hours 47 minutes a day. Least sunny months in Boi: January, February and August receive an average of 9 hours 37 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Boi. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours268300332320335328334307308329324332
Mean daily daylight hours11h 37m11h 48m12h 3m12h 19m12h 33m12h 39m12h 36m12h 24m12h 9m11h 53m11h 40m11h 33m

Solar UV radiation in Boi, Nigeria

Boi experiences the highest level of ultraviolet (UV) radiation in March, August and September, when the maximum UV index can reach values of 13 - 13, which corresponds to the Extreme category of sun exposure. January, November and December 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 Boi UV Index data.

Average daily maximum UV levels by month for Boi. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)111213121212131313121010