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Monthly climate in Bonthe, Southern Province, Sierra Leone

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Bonthe features a tropical monsoon climate (Am).Temperatures typically range between 25 °C (78 °F) and 28 °C (82 °F) through the year, but rarely can drop to 23 °C (73 °F) or can rise to as high as 32 °C (90 °F).The average annual precipitation amounts to about 3686 mm (145.1 inches) and receives 274 rainy days on the 1 mm (0.04 inches) threshold annually.Bonthe enjoys an average of 3202 hours of sunshine throughout the year, and daylight varies from 11 hours 40 minutes to 12 hours 32 minutes per day.

Monthly average temperatures in Bonthe, Southern Province, Sierra Leone §

The warmest months in Bonthe are February, March and April, with daily mean temperatures ranging from 27 to 28 °C (82 - 82 °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, Bonthe 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 Bonthe, Southern 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 31°C
(88°F)		 31°C
(89°F)		 32°C
(90°F)		 31°C
(89°F)		 31°C
(88°F)		 30°C
(87°F)		 29°C
(84°F)		 29°C
(84°F)		 29°C
(85°F)		 30°C
(86°F)		 31°C
(88°F)		 31°C
(89°F)
Mean maximum 31°C
(88°F)		 31°C
(88°F)		 31°C
(88°F)		 31°C
(88°F)		 30°C
(87°F)		 29°C
(85°F)		 28°C
(83°F)		 28°C
(83°F)		 29°C
(84°F)		 30°C
(86°F)		 30°C
(87°F)		 31°C
(87°F)
Average high 30°C
(86°F)		 30°C
(86°F)		 30°C
(86°F)		 30°C
(86°F)		 29°C
(84°F)		 28°C
(82°F)		 27°C
(80°F)		 27°C
(80°F)		 27°C
(81°F)		 28°C
(83°F)		 29°C
(84°F)		 29°C
(85°F)
Daily mean 27°C
(81°F)		 27°C
(82°F)		 27°C
(82°F)		 28°C
(82°F)		 27°C
(81°F)		 26°C
(79°F)		 25°C
(78°F)		 25°C
(78°F)		 26°C
(78°F)		 26°C
(80°F)		 27°C
(81°F)		 27°C
(81°F)
Average low 25°C
(78°F)		 26°C
(78°F)		 26°C
(79°F)		 26°C
(79°F)		 26°C
(79°F)		 25°C
(77°F)		 25°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(78°F)
Mean minimum 24°C
(76°F)		 24°C
(76°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(77°F)		 24°C
(75°F)		 24°C
(75°F)		 24°C
(75°F)		 23°C
(75°F)		 24°C
(75°F)		 24°C
(76°F)		 24°C
(76°F)
Minimum 24°C
(75°F)		 24°C
(75°F)		 24°C
(75°F)		 24°C
(76°F)		 24°C
(75°F)		 23°C
(73°F)		 24°C
(75°F)		 24°C
(75°F)		 23°C
(74°F)		 23°C
(74°F)		 24°C
(75°F)		 24°C
(75°F)

Compare climate in Bonthe with other places

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

Monthly average precipitation in Bonthe, Southern Province, Sierra Leone §

Bonthe usually has the most precipitation in June, July and August, with an average of 29 rainy days and 651 mm (25.6 inches) of precipitation per month.The driest months in Bonthe are January, February and March. On average, 42 mm (1.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Bonthe, Southern 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) 32 (1.3) 32 (1.3) 60 (2.4) 131 (5.1) 347 (13.6) 666 (26.2) 714 (28.1) 572 (22.5) 565 (22.2) 328 (12.9) 167 (6.6) 72 (2.8)
Average precipitation days (≥ 1 mm) 9 6 14 22 29 30 30 28 29 30 27 20

Monthly sunshine hours in Bonthe, Southern Province, Sierra Leone §

The sunniest months in Bonthe are March, April and December, when the sun shines an average of 9 hours 54 minutes a day.Least sunny months in Bonthe: June, August and September receive an average of 7 hours 21 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Bonthe, Southern 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 254 288 306 290 280 231 237 214 223 274 286 313
Mean daily daylight hours 11h 43m 11h 52m 12h 4m 12h 16m 12h 27m 12h 32m 12h 29m 12h 20m 12h 8m 11h 56m 11h 45m 11h 40m

Solar UV radiation in Bonthe, Southern Province, Sierra Leone §

Bonthe experiences the highest level of ultraviolet (UV) radiation in April, 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 Bonthe UV Index data.

Average daily maximum UV levels by month for Bonthe, Southern 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 13 13 12 12 13 13 12 10 10