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🇸🇱 Sierra Leone

Flag of Sierra LeoneNational Flag
🎵 National Anthem
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Geography & Borders

GuineaGuineaLiberiaLiberia

Introduction & Background

Sierra Leone,note 1 officially the Republic of Sierra Leone, is a country on the southwest coast of West Africa. It is bordered by Liberia to the southeast and Guinea surrounds the northern half of the nation. Covering a total area of 71,740km2 (27,699sqmi),12 Sierra Leone has a tropical climate, with diverse environments ranging from savanna to rainforests. The country has a population of 7,092,113 as of the 2015 census.13 The capital and largest city is Freetown. The country is divided into five administrative regions, which are subdivided into 16 districts.1415

Sierra Leone is a constitutional republic with a unicameral parliament and a directly elected president serving a five-year term with a maximum of two terms. The current president is Julius Maada Bio. Sierra Leone is a secular nation with the constitution providing for the separation of state and religion and freedom of conscience (which includes freedom of thoughts and religion).16 Muslims make up about three-quarters of the population, though with an influential Christian minority. Religious tolerance in the West African nation is very high and is generally considered a norm and part of Sierra Leone's cultural identity.17

Key Information
AttributeDetails
Official Name
Republic of Sierra Leone
Capital
Freetown
Continent
Africa
Region / Subregion
Africa / Western Africa
Population
9,077,691
Area
71,740 km²
Languages
English
Currencies
Sierra Leonean leone (Le) [SLL]
Cost of Living
25 / 100 (Low)
Price per Coffee
$1.25
Price per Meal
$5.00
Timezones
UTC±00 (GMT)
Bounding Box
Min: (6.79° N, 13.25° W)
Max: (10.05° N, 10.23° W)
Climate
Temperate
Terrain
coastal belt of mangrove swamps, wooded hill country, an upland plateau, mountains in the east[1]

Geography & Climate

Climate, weather, and air quality data are based on historical records for the coordinates of the capital city, Freetown.

Temperature (2025)

15°25°35°
Jan
22.2° / 31°
Feb
22.2° / 31.6°
Mar
22.1° / 31.3°
Apr
23.3° / 30.9°
May
23.2° / 28.9°
Jun
22.5° / 27.5°
Jul
22° / 25.6°
Aug
22° / 25.7°
Sep
22° / 26.6°
Oct
22° / 28.3°
Nov
22.4° / 28.7°
Dec
22.3° / 29.5°

Precipitation & Snow (2025)

6Jan
3Feb
10Mar
125Apr
336May
387Jun
726Jul
542Aug
510Sep
286Oct
256Nov
121Dec
Rain (mm) Snow (cm)

Atmospheric Pressure (2025)

997.5-1.3Jan
996.5-2.3Feb
997.3-1.5Mar
997.1-1.7Apr
999.1+0.3May
1000.7+1.9Jun
1001.7+2.9Jul
1000.6+1.8Aug
1000.2+1.4Sep
999.2+0.4Oct
998.5-0.3Nov
997.5-1.3Dec

Thunderstorm Days (2025)

0Jan
0Feb
0Mar
0Apr
0May
0Jun
0Jul
0Aug
0Sep
0Oct
0Nov
0Dec

Wind Speed (2025)

Jan
8.6
Feb
9.1
Mar
10.2
Apr
9.8
May
8.3
Jun
9.4
Jul
11.9
Aug
13.1
Sep
10.6
Oct
8.4
Nov
7.3
Dec
7.9

Air Quality — Monthly Averages (2025)

MetricJanFebMarAprMayJunJulAugSepOctNovDec
PM2.5 μg/m³32.639.522.821.414.267.46.34.45.412.625.7
PM10 μg/m³6793.757.342.931.111.711.69.16.59.821.260.6
O₃ μg/m³9086.879.769.257.551.253.148.33851.966.577
NO₂ μg/m³1.81.91.42.62.41.80.90.91.41.82.52.5
SO₂ μg/m³10.80.80.90.70.50.40.40.50.60.80.9
CO μg/m³249224185213217179142145178204256266

Pollen Levels — Monthly (2025)

Pollen data is negligible or unavailable for this location.

⛰️ Highest Elevation

Mount Bintumani
▲
Mount Bintumani1948 m / 6,391 ft
📷 Unknown

  • Map Locations: Google Maps | OpenStreetMap

People & Society

Total Population8,460,512Density: 117.21 / km²
Annual Growth Rate+2.2%Rapid Growth
Life Expectancy61.79 yrsAverage lifespan at birth
Fertility Rate3.79Births per woman



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