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Monthly climate in Fass, Gambia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Fass features a tropical savanna climate (Aw). Temperatures typically range between 26 °C (79 °F) and 32 °C (89 °F) through the year, but rarely can drop to 15 °C (59 °F) or can rise to as high as 45 °C (112 °F). The average annual precipitation amounts to about 595 mm (23.4 inches) and receives 57 rainy days on the 1 mm (0.04 inches) threshold annually. Fass enjoys an average of 3671 hours of sunshine throughout the year, and daylight varies from 11 hours 19 minutes to 12 hours 54 minutes per day.

Monthly average temperatures in Fass, Gambia

The warmest months in Fass are April, May and June, with daily mean temperatures ranging from 31 to 32 °C (88 - 89 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 26 to 28 °C (79 - 83 °F) throughout the day. On average each year, Fass 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 Fass. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum39°C
(103°F)		41°C
(106°F)		43°C
(109°F)		44°C
(112°F)		45°C
(112°F)		42°C
(107°F)		39°C
(102°F)		36°C
(97°F)		37°C
(98°F)		39°C
(103°F)		40°C
(105°F)		38°C
(101°F)
Mean maximum38°C
(100°F)		40°C
(104°F)		42°C
(107°F)		43°C
(110°F)		43°C
(110°F)		40°C
(104°F)		37°C
(99°F)		35°C
(96°F)		36°C
(96°F)		38°C
(101°F)		39°C
(103°F)		38°C
(101°F)
Average high35°C
(95°F)		36°C
(98°F)		39°C
(102°F)		40°C
(104°F)		39°C
(103°F)		37°C
(99°F)		34°C
(94°F)		32°C
(90°F)		33°C
(91°F)		35°C
(96°F)		37°C
(98°F)		35°C
(96°F)
Daily mean26°C
(79°F)		28°C
(83°F)		30°C
(86°F)		32°C
(89°F)		31°C
(89°F)		31°C
(88°F)		29°C
(85°F)		28°C
(83°F)		28°C
(83°F)		29°C
(85°F)		29°C
(84°F)		27°C
(80°F)
Average low19°C
(66°F)		21°C
(70°F)		22°C
(72°F)		24°C
(75°F)		25°C
(77°F)		26°C
(79°F)		26°C
(78°F)		25°C
(77°F)		25°C
(76°F)		25°C
(77°F)		22°C
(72°F)		20°C
(68°F)
Mean minimum16°C
(61°F)		18°C
(64°F)		19°C
(67°F)		21°C
(70°F)		22°C
(73°F)		23°C
(75°F)		24°C
(75°F)		23°C
(73°F)		22°C
(73°F)		22°C
(71°F)		18°C
(65°F)		16°C
(62°F)
Minimum15°C
(59°F)		17°C
(62°F)		17°C
(63°F)		20°C
(68°F)		21°C
(70°F)		21°C
(70°F)		24°C
(75°F)		22°C
(71°F)		21°C
(71°F)		20°C
(68°F)		16°C
(61°F)		16°C
(61°F)

Compare climate in Fass with other places

Compare temperature, precipitation, sunshine, UV index in Fass, Gambia with other places around the world.

Monthly average precipitation in Fass, Gambia

Fass usually has the most precipitation in July, August and September, with an average of 16 rainy days and 181 mm (7.1 inches) of precipitation per month. The driest months in Fass are January, March and April. On average, 0 mm (0.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Fass. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)0 (0.0)0 (0.0)0 (0.0)0 (0.0)1 (0.0)15 (0.6)124 (4.9)248 (9.8)170 (6.7)35 (1.4)1 (0.1)0 (0.0)
Average precipitation days (≥ 1 mm)000002142016500

Monthly sunshine hours in Fass, Gambia

The sunniest months in Fass are March, April and May, when the sun shines an average of 11 hours 2 minutes a day. Least sunny months in Fass: January, February and August 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 Fass. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours251283335333347326310274287313298311
Mean daily daylight hours11h 24m11h 41m12h 3m12h 25m12h 44m12h 54m12h 49m12h 32m12h 10m11h 48m11h 28m11h 19m

Solar UV radiation in Fass, Gambia

Fass 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. January, November and December are in the Very High exposure category. In these months, the maximum values of the UV index do not exceed 9. For more detailed information, check out our hourly Fass UV Index data.

Average daily maximum UV levels by month for Fass. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)910131313131314131298