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Weather & Climate in Kailahun, Sierra Leone
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Kailahun has a warm climate with an average annual temperature of 78°F (26°C). Winters average 76°F in January while summers reach 76°F in July / relatively mild seasonal variation. The area gets 163 sunny days per year, below the national average of 205. Annual precipitation totals 105.2 inches (wetter than the 38-inch national average). The city sits at an elevation of 1,014 feet.
Temperature
76°F Jan (25°C)
76°F Jul (24°C)
| Annual Average | 78.0°F |
| 44% above US avg | |
| January Average | 76°F (25°C) |
| July Average | 76°F (24°C) |
| Sunny Days | 163 days/yr |
Geography
| Elevation | 1,014 ft (309 m) |
| Area | 2,150.7 sq mi (5,570.4 km²) |
| Population Density | 7/sq mi |
| Coordinates | 8.2789°N, 10.5730°W |
| Timezone | Africa/Freetown |
Precipitation & Snow
Air Quality
Earthquake History
1 earthquake (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.4.
| Jan 17, 2001 | 24 km SE of Buedu, Sierra Leone | M4.4 | 41 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 76°F (25°C) | 0.6 in | Driest |
| February | 79°F (26°C) | 1.4 in | |
| March | 81°F (27°C) | 4.4 in | Warmest |
| April | 80°F (27°C) | 6.8 in | |
| May | 79°F (26°C) | 9.9 in | |
| June | 78°F (26°C) | 12.6 in | |
| July | 76°F (24°C) | 13.0 in | |
| August | 76°F (24°C) | 16.5 in | Coldest |
| September | 77°F (25°C) | 17.4 in | Wettest |
| October | 79°F (26°C) | 13.5 in | |
| November | 78°F (26°C) | 7.2 in | |
| December | 77°F (25°C) | 1.8 in |
Kailahun has a seasonal temperature swing of 5°F / from 76°F in August to 81°F in March. Total annual precipitation is 105.2 inches, with September being the wettest month (17.4") and January the driest (0.6").