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Monthly climate in Tarkwa, Ghana

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Tarkwa features a tropical savanna climate (Aw). Temperatures typically range between 25 °C (77 °F) and 28 °C (82 °F) through the year, but rarely can drop to 17 °C (63 °F) or can rise to as high as 36 °C (98 °F). The average annual precipitation amounts to about 2477 mm (97.5 inches) and receives 311 rainy days on the 1 mm (0.04 inches) threshold annually. Tarkwa enjoys an average of 3272 hours of sunshine throughout the year, and daylight varies from 11 hours 48 minutes to 12 hours 24 minutes per day.

Monthly average temperatures in Tarkwa, Ghana

The warmest months in Tarkwa are February, March and April, with daily mean temperatures ranging from 27 to 28 °C (81 - 82 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 25 to 25 °C (77 - 78 °F) throughout the day. On average each year, Tarkwa 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 Tarkwa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum36°C
(96°F)		36°C
(98°F)		34°C
(94°F)		35°C
(94°F)		34°C
(93°F)		32°C
(91°F)		31°C
(88°F)		31°C
(89°F)		32°C
(90°F)		33°C
(91°F)		34°C
(93°F)		34°C
(93°F)
Mean maximum34°C
(93°F)		34°C
(94°F)		34°C
(93°F)		34°C
(93°F)		33°C
(92°F)		32°C
(90°F)		30°C
(87°F)		31°C
(87°F)		31°C
(89°F)		32°C
(90°F)		33°C
(92°F)		33°C
(92°F)
Average high32°C
(90°F)		33°C
(91°F)		32°C
(90°F)		32°C
(90°F)		31°C
(88°F)		29°C
(85°F)		29°C
(84°F)		29°C
(84°F)		29°C
(85°F)		30°C
(87°F)		32°C
(89°F)		32°C
(89°F)
Daily mean27°C
(80°F)		28°C
(82°F)		27°C
(81°F)		27°C
(81°F)		27°C
(80°F)		26°C
(78°F)		25°C
(77°F)		25°C
(77°F)		25°C
(78°F)		26°C
(79°F)		26°C
(80°F)		27°C
(80°F)
Average low23°C
(74°F)		24°C
(76°F)		24°C
(75°F)		24°C
(75°F)		23°C
(74°F)		23°C
(74°F)		23°C
(73°F)		22°C
(72°F)		23°C
(74°F)		23°C
(74°F)		23°C
(73°F)		23°C
(74°F)
Mean minimum20°C
(69°F)		22°C
(72°F)		22°C
(72°F)		22°C
(72°F)		22°C
(71°F)		22°C
(71°F)		21°C
(69°F)		20°C
(69°F)		22°C
(71°F)		22°C
(71°F)		21°C
(71°F)		21°C
(70°F)
Minimum17°C
(63°F)		22°C
(71°F)		22°C
(72°F)		21°C
(71°F)		21°C
(70°F)		20°C
(68°F)		19°C
(67°F)		19°C
(66°F)		21°C
(70°F)		21°C
(71°F)		21°C
(70°F)		19°C
(66°F)

Compare climate in Tarkwa with other places

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

Monthly average precipitation in Tarkwa, Ghana

Tarkwa usually has the most precipitation in May, June and October, with an average of 29 rainy days and 309 mm (12.2 inches) of precipitation per month. The driest months in Tarkwa are January, February and December. On average, 94 mm (3.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Tarkwa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)63 (2.5)111 (4.4)208 (8.2)204 (8.0)290 (11.4)352 (13.8)232 (9.2)122 (4.8)262 (10.3)285 (11.2)240 (9.5)109 (4.3)
Average precipitation days (≥ 1 mm)152128272929282629302821

Monthly sunshine hours in Tarkwa, Ghana

The sunniest months in Tarkwa are March, November and December, when the sun shines an average of 9 hours 39 minutes a day. Least sunny months in Tarkwa: January, June and September receive an average of 8 hours 2 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Tarkwa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours246272288286272225272279259268291307
Mean daily daylight hours11h 50m11h 56m12h 4m12h 13m12h 21m12h 24m12h 22m12h 16m12h 7m11h 59m11h 51m11h 48m

Solar UV radiation in Tarkwa, Ghana

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

Average daily maximum UV levels by month for Tarkwa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)11111214131211121312109