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Monthly climate in Bolgatanga, Ghana

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Bolgatanga features a tropical savanna climate (Aw). Temperatures typically range between 26 °C (80 °F) and 33 °C (92 °F) through the year, but rarely can drop to 16 °C (62 °F) or can rise to as high as 43 °C (109 °F). The average annual precipitation amounts to about 786 mm (31.0 inches) and receives 101 rainy days on the 1 mm (0.04 inches) threshold annually. Bolgatanga enjoys an average of 3661 hours of sunshine throughout the year, and daylight varies from 11 hours 29 minutes to 12 hours 43 minutes per day.

Monthly average temperatures in Bolgatanga, Ghana

The warmest months in Bolgatanga are March, April and May, with daily mean temperatures ranging from 31 to 33 °C (89 - 92 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 26 to 27 °C (80 - 81 °F) throughout the day. On average each year, Bolgatanga experiences 329 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 Bolgatanga. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum38°C
(101°F)		40°C
(103°F)		42°C
(108°F)		43°C
(109°F)		41°C
(106°F)		38°C
(100°F)		35°C
(94°F)		33°C
(91°F)		34°C
(93°F)		37°C
(100°F)		39°C
(102°F)		38°C
(101°F)
Mean maximum37°C
(99°F)		39°C
(103°F)		41°C
(106°F)		41°C
(106°F)		39°C
(103°F)		37°C
(98°F)		34°C
(93°F)		32°C
(90°F)		33°C
(92°F)		36°C
(97°F)		38°C
(100°F)		37°C
(99°F)
Average high35°C
(95°F)		37°C
(98°F)		39°C
(102°F)		38°C
(101°F)		36°C
(97°F)		33°C
(91°F)		31°C
(88°F)		30°C
(85°F)		31°C
(87°F)		33°C
(92°F)		36°C
(97°F)		35°C
(96°F)
Daily mean28°C
(82°F)		30°C
(87°F)		33°C
(92°F)		33°C
(92°F)		31°C
(89°F)		29°C
(84°F)		27°C
(81°F)		26°C
(80°F)		27°C
(81°F)		28°C
(83°F)		29°C
(84°F)		28°C
(82°F)
Average low21°C
(70°F)		24°C
(75°F)		27°C
(81°F)		28°C
(83°F)		27°C
(81°F)		25°C
(78°F)		24°C
(76°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		22°C
(73°F)		21°C
(70°F)
Mean minimum18°C
(66°F)		21°C
(70°F)		24°C
(75°F)		25°C
(77°F)		24°C
(76°F)		23°C
(74°F)		23°C
(74°F)		22°C
(72°F)		22°C
(72°F)		21°C
(71°F)		20°C
(68°F)		19°C
(67°F)
Minimum16°C
(62°F)		19°C
(67°F)		22°C
(73°F)		23°C
(74°F)		23°C
(74°F)		22°C
(72°F)		23°C
(73°F)		21°C
(70°F)		22°C
(71°F)		19°C
(67°F)		19°C
(67°F)		18°C
(65°F)

Compare climate in Bolgatanga with other places

Compare temperature, precipitation, sunshine, UV index in Bolgatanga, Ghana with other places around the world.

Monthly average precipitation in Bolgatanga, Ghana

Bolgatanga usually has the most precipitation in July, August and September, with an average of 22 rainy days and 196 mm (7.7 inches) of precipitation per month. The driest months in Bolgatanga are January, November and December. On average, 1 mm (0.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Bolgatanga. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)0 (0.0)3 (0.1)5 (0.2)17 (0.7)37 (1.4)66 (2.6)138 (5.4)254 (10.0)195 (7.7)69 (2.7)2 (0.1)0 (0.0)
Average precipitation days (≥ 1 mm)0014912222618900

Monthly sunshine hours in Bolgatanga, Ghana

The sunniest months in Bolgatanga are March, May and December, when the sun shines an average of 10 hours 35 minutes a day. Least sunny months in Bolgatanga: January, August and September receive an average of 8 hours 53 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Bolgatanga. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours265295321319335309300266285315320327
Mean daily daylight hours11h 33m11h 46m12h 3m12h 21m12h 36m12h 43m12h 40m12h 26m12h 9m11h 51m11h 36m11h 29m

Solar UV radiation in Bolgatanga, Ghana

Bolgatanga experiences the highest level of ultraviolet (UV) radiation in April, August and September, when the maximum UV index can reach values of 13 - 14, which corresponds to the Extreme category of sun exposure. February, 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 Bolgatanga UV Index data.

Average daily maximum UV levels by month for Bolgatanga. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)11111213121313141412109