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Monthly climate in Waterloo, Western Area, Sierra Leone

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Waterloo 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 33 °C (92 °F).The average annual precipitation amounts to about 3362 mm (132.4 inches) and receives 233 rainy days on the 1 mm (0.04 inches) threshold annually.Waterloo enjoys an average of 3294 hours of sunshine throughout the year, and daylight varies from 11 hours 38 minutes to 12 hours 35 minutes per day.

Monthly average temperatures in Waterloo, Western Area, Sierra Leone §

The warmest months in Waterloo 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 26 °C (78 - 78 °F) throughout the day. On average each year, Waterloo experiences 328 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 Waterloo, Western Area, 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 33°C
(92°F)		 33°C
(92°F)		 33°C
(91°F)		 32°C
(91°F)		 31°C
(89°F)		 30°C
(87°F)		 29°C
(84°F)		 29°C
(85°F)		 30°C
(86°F)		 30°C
(87°F)		 31°C
(88°F)		 32°C
(90°F)
Mean maximum 32°C
(90°F)		 32°C
(90°F)		 32°C
(90°F)		 32°C
(90°F)		 31°C
(88°F)		 30°C
(86°F)		 29°C
(84°F)		 29°C
(84°F)		 29°C
(85°F)		 30°C
(86°F)		 30°C
(87°F)		 31°C
(88°F)
Average high 30°C
(87°F)		 31°C
(88°F)		 31°C
(87°F)		 30°C
(87°F)		 29°C
(85°F)		 28°C
(83°F)		 27°C
(81°F)		 27°C
(80°F)		 27°C
(82°F)		 28°C
(83°F)		 29°C
(84°F)		 30°C
(85°F)
Daily mean 27°C
(81°F)		 27°C
(81°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
(79°F)		 27°C
(80°F)		 27°C
(81°F)
Average low 25°C
(77°F)		 25°C
(77°F)		 25°C
(78°F)		 26°C
(79°F)		 26°C
(78°F)		 25°C
(77°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 25°C
(77°F)		 25°C
(77°F)
Mean minimum 23°C
(74°F)		 24°C
(75°F)		 24°C
(75°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(75°F)		 23°C
(74°F)		 24°C
(75°F)		 23°C
(74°F)		 23°C
(74°F)		 24°C
(75°F)		 24°C
(75°F)
Minimum 23°C
(74°F)		 23°C
(73°F)		 23°C
(74°F)		 23°C
(73°F)		 23°C
(74°F)		 23°C
(73°F)		 23°C
(74°F)		 23°C
(74°F)		 23°C
(74°F)		 23°C
(73°F)		 23°C
(74°F)		 23°C
(74°F)

Compare climate in Waterloo with other places

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

Monthly average precipitation in Waterloo, Western Area, Sierra Leone §

Waterloo usually has the most precipitation in July, August and September, with an average of 29 rainy days and 699 mm (27.5 inches) of precipitation per month.The driest months in Waterloo are January, February and March. On average, 17 mm (0.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Waterloo, Western Area, 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) 11 (0.4) 16 (0.6) 25 (1.0) 62 (2.5) 198 (7.8) 491 (19.3) 777 (30.6) 724 (28.5) 596 (23.5) 270 (10.6) 145 (5.7) 46 (1.8)
Average precipitation days (≥ 1 mm) 3 3 7 12 24 29 30 29 29 29 25 13

Monthly sunshine hours in Waterloo, Western Area, Sierra Leone §

The sunniest months in Waterloo are March, April and December, when the sun shines an average of 10 hours 17 minutes a day.Least sunny months in Waterloo: June, August and September receive an average of 7 hours 27 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Waterloo, Western Area, 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 258 291 317 309 302 235 239 217 226 281 295 319
Mean daily daylight hours 11h 41m 11h 50m 12h 4m 12h 17m 12h 29m 12h 35m 12h 32m 12h 21m 12h 8m 11h 55m 11h 43m 11h 38m

Solar UV radiation in Waterloo, Western Area, Sierra Leone §

Waterloo 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 Waterloo UV Index data.

Average daily maximum UV levels by month for Waterloo, Western Area, 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 9