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Monthly climate in Yonibana, Northern Province, Sierra Leone

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Yonibana features a tropical monsoon climate (Am).Temperatures typically range between 25 °C (77 °F) and 29 °C (85 °F) through the year, but rarely can drop to 19 °C (66 °F) or can rise to as high as 40 °C (104 °F).The average annual precipitation amounts to about 2738 mm (107.8 inches) and receives 215 rainy days on the 1 mm (0.04 inches) threshold annually.Yonibana enjoys an average of 2974 hours of sunshine throughout the year, and daylight varies from 11 hours 37 minutes to 12 hours 35 minutes per day.

Monthly average temperatures in Yonibana, Northern Province, Sierra Leone §

The warmest months in Yonibana are February, March and April, with daily mean temperatures ranging from 29 to 29 °C (84 - 85 °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, Yonibana experiences 326 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 Yonibana, Northern Province, Sierra Leone.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 39°C
(102°F)		 40°C
(104°F)		 40°C
(104°F)		 38°C
(100°F)		 37°C
(99°F)		 34°C
(93°F)		 32°C
(90°F)		 32°C
(90°F)		 33°C
(92°F)		 33°C
(92°F)		 33°C
(93°F)		 36°C
(97°F)
Mean maximum 37°C
(99°F)		 38°C
(102°F)		 39°C
(102°F)		 37°C
(99°F)		 35°C
(96°F)		 32°C
(91°F)		 31°C
(89°F)		 31°C
(88°F)		 32°C
(90°F)		 33°C
(91°F)		 33°C
(91°F)		 35°C
(95°F)
Average high 35°C
(95°F)		 36°C
(98°F)		 36°C
(97°F)		 34°C
(94°F)		 32°C
(90°F)		 30°C
(86°F)		 28°C
(83°F)		 28°C
(83°F)		 29°C
(85°F)		 30°C
(87°F)		 31°C
(88°F)		 33°C
(91°F)
Daily mean 28°C
(83°F)		 29°C
(84°F)		 29°C
(85°F)		 29°C
(84°F)		 27°C
(82°F)		 26°C
(79°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(78°F)		 26°C
(79°F)		 26°C
(80°F)		 27°C
(81°F)
Average low 23°C
(73°F)		 24°C
(75°F)		 25°C
(76°F)		 25°C
(77°F)		 24°C
(76°F)		 23°C
(74°F)		 23°C
(73°F)		 23°C
(73°F)		 23°C
(74°F)		 23°C
(74°F)		 23°C
(74°F)		 23°C
(73°F)
Mean minimum 20°C
(69°F)		 22°C
(71°F)		 23°C
(73°F)		 23°C
(74°F)		 23°C
(73°F)		 22°C
(72°F)		 22°C
(72°F)		 22°C
(71°F)		 22°C
(72°F)		 22°C
(72°F)		 22°C
(72°F)		 21°C
(70°F)
Minimum 19°C
(66°F)		 21°C
(69°F)		 20°C
(69°F)		 22°C
(71°F)		 22°C
(72°F)		 21°C
(70°F)		 21°C
(71°F)		 21°C
(71°F)		 22°C
(71°F)		 22°C
(72°F)		 21°C
(71°F)		 20°C
(68°F)

Compare climate in Yonibana with other places

Compare temperature, precipitation, sunshine, UV index in Yonibana, Northern Province, Sierra Leone with other places around the world.

Monthly average precipitation in Yonibana, Northern Province, Sierra Leone §

Yonibana usually has the most precipitation in July, August and September, with an average of 29 rainy days and 541 mm (21.3 inches) of precipitation per month.The driest months in Yonibana are January, February and December. On average, 14 mm (0.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Yonibana, Northern Province, Sierra Leone.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) 3 (0.1) 17 (0.7) 31 (1.2) 96 (3.8) 182 (7.2) 404 (15.9) 486 (19.1) 696 (27.4) 440 (17.3) 240 (9.5) 121 (4.8) 20 (0.8)
Average precipitation days (≥ 1 mm) 0 2 9 16 23 28 30 29 28 27 18 5

Monthly sunshine hours in Yonibana, Northern Province, Sierra Leone §

The sunniest months in Yonibana are February, March and December, when the sun shines an average of 9 hours 38 minutes a day.Least sunny months in Yonibana: July, August and September receive an average of 6 hours 28 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Yonibana, Northern Province, Sierra Leone.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 246 281 294 267 255 218 205 193 197 251 262 300
Mean daily daylight hours 11h 40m 11h 50m 12h 4m 12h 18m 12h 29m 12h 35m 12h 32m 12h 22m 12h 8m 11h 54m 11h 43m 11h 37m

Solar UV radiation in Yonibana, Northern Province, Sierra Leone §

Yonibana experiences the highest level of ultraviolet (UV) radiation in May, 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 exposure category. In these months, the maximum values of the UV index do not exceed 10. For more detailed information, check out our hourly Yonibana UV Index data.

Average daily maximum UV levels by month for Yonibana, Northern Province, Sierra Leone.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) 10 11 11 12 13 12 13 13 13 12 10 10