nomadseason

Monthly climate in Bo, Sierra Leone

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Bo features a tropical monsoon climate (Am).Temperatures typically range between 24 °C (76 °F) and 29 °C (84 °F) through the year, but rarely can drop to 18 °C (65 °F) or can rise to as high as 40 °C (104 °F).The average annual precipitation amounts to about 2800 mm (110.2 inches) and receives 236 rainy days on the 1 mm (0.04 inches) threshold annually.Bo enjoys an average of 2994 hours of sunshine throughout the year, and daylight varies from 11 hours 39 minutes to 12 hours 33 minutes per day.

Monthly average temperatures in Bo, Sierra Leone §

The warmest months in Bo are January, February and March, with daily mean temperatures ranging from 28 to 29 °C (82 - 84 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 24 to 25 °C (76 - 77 °F) throughout the day. On average each year, Bo experiences 324 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 Bo, 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 38°C
(101°F)		 39°C
(103°F)		 40°C
(104°F)		 37°C
(99°F)		 35°C
(96°F)		 33°C
(93°F)		 32°C
(90°F)		 33°C
(92°F)		 33°C
(92°F)		 33°C
(92°F)		 33°C
(92°F)		 36°C
(97°F)
Mean maximum 37°C
(99°F)		 39°C
(102°F)		 38°C
(101°F)		 36°C
(97°F)		 35°C
(95°F)		 32°C
(91°F)		 32°C
(89°F)		 32°C
(90°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
(97°F)		 35°C
(96°F)		 33°C
(92°F)		 32°C
(89°F)		 30°C
(86°F)		 28°C
(83°F)		 28°C
(83°F)		 29°C
(84°F)		 30°C
(86°F)		 31°C
(87°F)		 32°C
(90°F)
Daily mean 28°C
(82°F)		 29°C
(84°F)		 28°C
(84°F)		 28°C
(82°F)		 27°C
(80°F)		 25°C
(78°F)		 24°C
(76°F)		 24°C
(76°F)		 25°C
(77°F)		 25°C
(78°F)		 26°C
(79°F)		 26°C
(80°F)
Average low 23°C
(73°F)		 23°C
(74°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(75°F)		 23°C
(74°F)		 23°C
(73°F)		 23°C
(73°F)		 23°C
(73°F)		 23°C
(73°F)		 23°C
(74°F)		 23°C
(73°F)
Mean minimum 20°C
(68°F)		 21°C
(71°F)		 22°C
(73°F)		 22°C
(73°F)		 22°C
(73°F)		 22°C
(71°F)		 22°C
(71°F)		 21°C
(70°F)		 22°C
(71°F)		 22°C
(71°F)		 22°C
(72°F)		 20°C
(69°F)
Minimum 18°C
(65°F)		 21°C
(70°F)		 21°C
(70°F)		 21°C
(71°F)		 22°C
(72°F)		 21°C
(70°F)		 21°C
(71°F)		 20°C
(68°F)		 22°C
(71°F)		 22°C
(71°F)		 22°C
(71°F)		 18°C
(65°F)

Compare climate in Bo with other places

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

Monthly average precipitation in Bo, Sierra Leone §

Bo usually has the most precipitation in July, August and September, with an average of 28 rainy days and 503 mm (19.8 inches) of precipitation per month.The driest months in Bo are January, February and December. On average, 24 mm (0.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Bo, 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) 9 (0.3) 32 (1.3) 61 (2.4) 131 (5.1) 231 (9.1) 399 (15.7) 457 (18.0) 546 (21.5) 505 (19.9) 275 (10.8) 123 (4.9) 31 (1.2)
Average precipitation days (≥ 1 mm) 2 5 13 19 26 29 30 28 28 28 19 9

Monthly sunshine hours in Bo, Sierra Leone §

The sunniest months in Bo are February, March and December, when the sun shines an average of 9 hours 31 minutes a day.Least sunny months in Bo: July, August and September receive an average of 6 hours 42 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Bo, 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 251 283 282 256 251 227 212 198 206 259 264 301
Mean daily daylight hours 11h 42m 11h 51m 12h 4m 12h 17m 12h 28m 12h 33m 12h 31m 12h 21m 12h 8m 11h 55m 11h 44m 11h 39m

Solar UV radiation in Bo, Sierra Leone §

Bo 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 Bo UV Index data.

Average daily maximum UV levels by month for Bo, 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