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Monthly climate in Sunyani, Ghana

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Sunyani features a tropical savanna climate (Aw).Temperatures typically range between 25 °C (78 °F) and 30 °C (86 °F) through the year, but rarely can drop to 18 °C (64 °F) or can rise to as high as 39 °C (103 °F).The average annual precipitation amounts to about 1073 mm (42.3 inches) and receives 176 rainy days on the 1 mm (0.04 inches) threshold annually.Sunyani enjoys an average of 3086 hours of sunshine throughout the year, and daylight varies from 11 hours 41 minutes to 12 hours 31 minutes per day.

Monthly average temperatures in Sunyani, Ghana §

The warmest months in Sunyani are January, February and March, with daily mean temperatures ranging from 28 to 30 °C (83 - 86 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 25 to 26 °C (78 - 78 °F) throughout the day. On average each year, Sunyani 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 Sunyani, Ghana.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 38°C
(100°F)		 39°C
(103°F)		 39°C
(103°F)		 36°C
(98°F)		 36°C
(96°F)		 35°C
(95°F)		 32°C
(89°F)		 33°C
(91°F)		 33°C
(92°F)		 33°C
(92°F)		 35°C
(96°F)		 36°C
(97°F)
Mean maximum 36°C
(98°F)		 38°C
(100°F)		 37°C
(99°F)		 36°C
(97°F)		 35°C
(95°F)		 33°C
(92°F)		 31°C
(89°F)		 32°C
(89°F)		 32°C
(90°F)		 33°C
(91°F)		 34°C
(93°F)		 35°C
(95°F)
Average high 35°C
(95°F)		 36°C
(97°F)		 35°C
(94°F)		 34°C
(93°F)		 33°C
(91°F)		 31°C
(87°F)		 29°C
(85°F)		 29°C
(85°F)		 30°C
(85°F)		 31°C
(88°F)		 32°C
(90°F)		 33°C
(91°F)
Daily mean 28°C
(83°F)		 30°C
(86°F)		 29°C
(84°F)		 28°C
(83°F)		 28°C
(82°F)		 26°C
(80°F)		 26°C
(78°F)		 25°C
(78°F)		 26°C
(78°F)		 26°C
(79°F)		 27°C
(81°F)		 27°C
(81°F)
Average low 22°C
(73°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(75°F)		 23°C
(74°F)		 23°C
(74°F)		 23°C
(73°F)		 23°C
(74°F)		 23°C
(74°F)		 23°C
(73°F)		 23°C
(73°F)
Mean minimum 19°C
(67°F)		 22°C
(71°F)		 23°C
(73°F)		 22°C
(72°F)		 22°C
(72°F)		 22°C
(72°F)		 21°C
(71°F)		 21°C
(70°F)		 22°C
(71°F)		 22°C
(71°F)		 21°C
(71°F)		 19°C
(67°F)
Minimum 18°C
(65°F)		 21°C
(69°F)		 22°C
(72°F)		 22°C
(72°F)		 21°C
(70°F)		 21°C
(70°F)		 21°C
(70°F)		 20°C
(68°F)		 21°C
(70°F)		 21°C
(71°F)		 20°C
(69°F)		 18°C
(64°F)

Compare climate in Sunyani with other places

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

Monthly average precipitation in Sunyani, Ghana §

Sunyani usually has the most precipitation in August, September and October, with an average of 21 rainy days and 145 mm (5.7 inches) of precipitation per month.The driest months in Sunyani are January, February and December. On average, 20 mm (0.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sunyani, Ghana.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 5 (0.2) 37 (1.5) 99 (3.9) 96 (3.8) 95 (3.7) 109 (4.3) 103 (4.1) 109 (4.3) 181 (7.1) 144 (5.7) 78 (3.1) 16 (0.6)
Average precipitation days (≥ 1 mm) 1 5 16 15 17 21 21 16 25 23 14 2

Monthly sunshine hours in Sunyani, Ghana §

The sunniest months in Sunyani are April, May and December, when the sun shines an average of 9 hours 21 minutes a day.Least sunny months in Sunyani: July, August and September receive an average of 7 hours 14 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sunyani, Ghana.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 248 270 278 283 284 244 232 218 215 245 272 292
Mean daily daylight hours 11h 44m 11h 52m 12h 4m 12h 16m 12h 26m 12h 31m 12h 29m 12h 20m 12h 8m 11h 56m 11h 46m 11h 41m

Solar UV radiation in Sunyani, Ghana §

Sunyani 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 Sunyani UV Index data.

Average daily maximum UV levels by month for Sunyani, Ghana.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 11 11 12 14 13 12 12 13 13 12 10 9