Mile 91 weather in September
In September, Mile 91 sees average daytime highs of 29°C and overnight lows near 23°C, with 403 mm of rain across 29.2 wet days and about 12 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.
Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 0% of the time in September, and the air most often feels oppressive.
Daylight stretches from about 12 h 12 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Mile 91's 10th-clearest and 6th-windiest month. For the whole year in context, see Mile 91's year-round climate.
- Daytime high
- 29°
- 10th warmest
- Overnight low
- 23°
- 6th coldest
- Rainfall
- 403 mm
- 29.2 wet days
- Daylight
- 12 hours
- 6:42 AM – 6:45 PM
- Cloud cover
- 86%
- 10th clearest
- Wind
- 5 km/h
- 6th windiest
- Solar energy
- 3.81 kWh/m²
- Travel score
- 2.9
- out of 10
Temperature in September
Day-to-day highs hold fairly steady near 29°C through the month.
A typical September day in Mile 91 reaches about 29°C in the afternoon and slips back to 23°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 30°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
| Avg low (°C) | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 28 | 22 |
| 2 | 28 | 22 |
| 3 | 28 | 22 |
| 4 | 28 | 22 |
| 5 | 28 | 22 |
| 6 | 28 | 22 |
| 7 | 28 | 22 |
| 8 | 28 | 22 |
| 9 | 28 | 22 |
| 10 | 28 | 23 |
| 11 | 28 | 23 |
| 12 | 29 | 23 |
| 13 | 29 | 23 |
| 14 | 29 | 23 |
| 15 | 29 | 23 |
| 16 | 29 | 23 |
| 17 | 29 | 23 |
| 18 | 29 | 23 |
| 19 | 29 | 23 |
| 20 | 29 | 23 |
| 21 | 29 | 23 |
| 22 | 29 | 23 |
| 23 | 29 | 23 |
| 24 | 29 | 23 |
| 25 | 29 | 23 |
| 26 | 29 | 23 |
| 27 | 29 | 23 |
| 28 | 29 | 23 |
| 29 | 29 | 23 |
| 30 | 29 | 23 |
How September really feels in Mile 91
Once humidity and wind are folded in, September averages 13 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Mile 91 weather by month
How September compares with the rest of the year at a glance. September is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 33° / 22° | 10 | 2.8 | 11.6 | 4.0 |
| Feb | 35° / 23° | 11 | 2.3 | 11.7 | 3.0 |
| Mar | 35° / 24° | 33 | 7.6 | 11.9 | 2.6 |
| Apr | 34° / 24° | 76 | 13.5 | 12.2 | 2.8 |
| May | 31° / 24° | 212 | 25.5 | 12.4 | 2.7 |
| Jun | 29° / 23° | 321 | 28.5 | 12.5 | 2.8 |
| Jul | 28° / 23° | 432 | 29.8 | 12.4 | 3.1 |
| Aug | 28° / 22° | 507 | 29.7 | 12.3 | 3.3 |
| Sep | 29° / 23° | 403 | 29.2 | 12 | 2.9 |
| Oct | 30° / 23° | 226 | 28.8 | 11.8 | 2.9 |
| Nov | 30° / 22° | 87 | 18.3 | 11.6 | 3.8 |
| Dec | 32° / 22° | 19 | 5 | 11.5 | 4.8 |
Cloud cover in September
The sky is clear or mostly clear about 0% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 5% of September, with mostly cloudy or overcast conditions the remaining 95%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 |
| Cloudier (%) | 98 | 98 | 98 | 98 | 97 | 97 | 97 | 97 | 97 | 97 | 96 | 96 | 96 | 96 | 96 | 95 | 95 | 95 | 95 | 94 | 94 | 94 | 93 | 93 | 93 | 93 | 92 | 92 | 92 | 92 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 2 | 98 |
| 2 | 2 | 98 |
| 3 | 2 | 98 |
| 4 | 2 | 98 |
| 5 | 3 | 97 |
| 6 | 3 | 97 |
| 7 | 3 | 97 |
| 8 | 3 | 97 |
| 9 | 3 | 97 |
| 10 | 3 | 97 |
| 11 | 4 | 96 |
| 12 | 4 | 96 |
| 13 | 4 | 96 |
| 14 | 4 | 96 |
| 15 | 4 | 96 |
| 16 | 5 | 95 |
| 17 | 5 | 95 |
| 18 | 5 | 95 |
| 19 | 5 | 95 |
| 20 | 6 | 94 |
| 21 | 6 | 94 |
| 22 | 6 | 94 |
| 23 | 7 | 93 |
| 24 | 7 | 93 |
| 25 | 7 | 93 |
| 26 | 7 | 93 |
| 27 | 8 | 92 |
| 28 | 8 | 92 |
| 29 | 8 | 92 |
| 30 | 8 | 92 |
Chance of precipitation in September
Mile 91 gets around 403 mm of rain over 29.2 wet days in September. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 97% and peaks near 97% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 |
| Rain chance (%) | |
|---|---|
| 1 | 97 |
| 2 | 97 |
| 3 | 97 |
| 4 | 97 |
| 5 | 97 |
| 6 | 97 |
| 7 | 97 |
| 8 | 97 |
| 9 | 97 |
| 10 | 97 |
| 11 | 97 |
| 12 | 97 |
| 13 | 97 |
| 14 | 97 |
| 15 | 97 |
| 16 | 97 |
| 17 | 97 |
| 18 | 97 |
| 19 | 97 |
| 20 | 97 |
| 21 | 97 |
| 22 | 97 |
| 23 | 97 |
| 24 | 97 |
| 25 | 97 |
| 26 | 97 |
| 27 | 97 |
| 28 | 97 |
| 29 | 97 |
| 30 | 97 |
Humidity in September
Most of September feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, September lands in the oppressive band about 99% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oppressive (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 98 |
| Miserable (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Oppressive (%) | Miserable (%) | |
|---|---|---|
| 1 | 100 | 0 |
| 2 | 100 | 0 |
| 3 | 100 | 0 |
| 4 | 100 | 0 |
| 5 | 100 | 0 |
| 6 | 100 | 0 |
| 7 | 100 | 0 |
| 8 | 100 | 0 |
| 9 | 100 | 0 |
| 10 | 100 | 0 |
| 11 | 100 | 0 |
| 12 | 99 | 1 |
| 13 | 99 | 1 |
| 14 | 99 | 1 |
| 15 | 99 | 1 |
| 16 | 99 | 1 |
| 17 | 99 | 1 |
| 18 | 99 | 1 |
| 19 | 99 | 1 |
| 20 | 99 | 1 |
| 21 | 99 | 1 |
| 22 | 99 | 1 |
| 23 | 98 | 2 |
| 24 | 98 | 2 |
| 25 | 98 | 2 |
| 26 | 98 | 2 |
| 27 | 98 | 2 |
| 28 | 98 | 2 |
| 29 | 98 | 2 |
| 30 | 98 | 2 |
Wind in September
Winds average 5 km/h in September.
Across September, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 6 | calm |
| 2 | 6 | calm |
| 3 | 6 | calm |
| 4 | 6 | calm |
| 5 | 6 | calm |
| 6 | 6 | calm |
| 7 | 6 | calm |
| 8 | 6 | calm |
| 9 | 6 | calm |
| 10 | 6 | calm |
| 11 | 5 | calm |
| 12 | 5 | calm |
| 13 | 5 | calm |
| 14 | 5 | calm |
| 15 | 5 | calm |
| 16 | 5 | calm |
| 17 | 5 | calm |
| 18 | 5 | calm |
| 19 | 5 | calm |
| 20 | 5 | calm |
| 21 | 5 | calm |
| 22 | 5 | calm |
| 23 | 5 | calm |
| 24 | 5 | calm |
| 25 | 5 | calm |
| 26 | 5 | calm |
| 27 | 5 | calm |
| 28 | 5 | calm |
| 29 | 5 | calm |
| 30 | 5 | calm |
Sunrise & sunset in September
Daylight runs from about 12 h 12 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 18 minutes over September. Sunrise moves from 6:44 AM to 6:40 AM, and sunset from 6:53 PM to 6:36 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.9 | 11.9 |
| Sunrise (AM) | 6:44 | 6:44 | 6:43 | 6:43 | 6:43 | 6:43 | 6:43 | 6:43 | 6:43 | 6:43 | 6:42 | 6:42 | 6:42 | 6:42 | 6:42 | 6:42 | 6:42 | 6:42 | 6:41 | 6:41 | 6:41 | 6:41 | 6:41 | 6:41 | 6:41 | 6:41 | 6:40 | 6:40 | 6:40 | 6:40 |
| Sunset (PM) | 6:53 | 6:53 | 6:52 | 6:52 | 6:51 | 6:51 | 6:50 | 6:49 | 6:49 | 6:48 | 6:48 | 6:47 | 6:46 | 6:46 | 6:45 | 6:45 | 6:44 | 6:43 | 6:43 | 6:42 | 6:42 | 6:41 | 6:40 | 6:40 | 6:39 | 6:39 | 6:38 | 6:37 | 6:37 | 6:36 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.2 | 6:44 | 6:53 |
| 2 | 12.2 | 6:44 | 6:53 |
| 3 | 12.1 | 6:43 | 6:52 |
| 4 | 12.1 | 6:43 | 6:52 |
| 5 | 12.1 | 6:43 | 6:51 |
| 6 | 12.1 | 6:43 | 6:51 |
| 7 | 12.1 | 6:43 | 6:50 |
| 8 | 12.1 | 6:43 | 6:49 |
| 9 | 12.1 | 6:43 | 6:49 |
| 10 | 12.1 | 6:43 | 6:48 |
| 11 | 12.1 | 6:42 | 6:48 |
| 12 | 12.1 | 6:42 | 6:47 |
| 13 | 12.1 | 6:42 | 6:46 |
| 14 | 12.1 | 6:42 | 6:46 |
| 15 | 12.1 | 6:42 | 6:45 |
| 16 | 12.0 | 6:42 | 6:45 |
| 17 | 12.0 | 6:42 | 6:44 |
| 18 | 12.0 | 6:42 | 6:43 |
| 19 | 12.0 | 6:41 | 6:43 |
| 20 | 12.0 | 6:41 | 6:42 |
| 21 | 12.0 | 6:41 | 6:42 |
| 22 | 12.0 | 6:41 | 6:41 |
| 23 | 12.0 | 6:41 | 6:40 |
| 24 | 12.0 | 6:41 | 6:40 |
| 25 | 12.0 | 6:41 | 6:39 |
| 26 | 12.0 | 6:41 | 6:39 |
| 27 | 12.0 | 6:40 | 6:38 |
| 28 | 12.0 | 6:40 | 6:37 |
| 29 | 11.9 | 6:40 | 6:37 |
| 30 | 11.9 | 6:40 | 6:36 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 3.81 kWh/m².
For context, solar energy here swings from a low near 3.25 kWh/m² to a high of 5.77 kWh/m² in February across the year — September's 3.81 kWh/m² sits near the bottom.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | 3.6 | 3.6 | 3.6 | 3.6 | 3.7 | 3.7 | 3.7 | 3.8 | 3.8 | 3.8 | 3.8 | 3.9 | 3.9 | 3.9 | 3.9 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.1 | 4.1 | 4.1 | 4.1 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 3.5 | Moderate |
| 2 | 3.5 | Moderate |
| 3 | 3.5 | Moderate |
| 4 | 3.5 | Moderate |
| 5 | 3.5 | Moderate |
| 6 | 3.6 | Moderate |
| 7 | 3.6 | Moderate |
| 8 | 3.6 | Moderate |
| 9 | 3.6 | Moderate |
| 10 | 3.7 | Moderate |
| 11 | 3.7 | Moderate |
| 12 | 3.7 | Moderate |
| 13 | 3.8 | Moderate |
| 14 | 3.8 | Moderate |
| 15 | 3.8 | Moderate |
| 16 | 3.8 | Moderate |
| 17 | 3.9 | Moderate |
| 18 | 3.9 | Moderate |
| 19 | 3.9 | Moderate |
| 20 | 3.9 | Moderate |
| 21 | 4.0 | Moderate |
| 22 | 4.0 | Moderate |
| 23 | 4.0 | Bright |
| 24 | 4.0 | Bright |
| 25 | 4.0 | Bright |
| 26 | 4.0 | Bright |
| 27 | 4.1 | Bright |
| 28 | 4.1 | Bright |
| 29 | 4.1 | Bright |
| 30 | 4.1 | Bright |
Hazard calendar for Mile 91
In September, Mile 91 sits inside its monsoon season. The full year is below, with each hazard's peak months called out.
Mile 91's monsoon runs June–September, when most of the year's rain falls.
Mile 91 sees seasonal dust haze (February–April), heaviest in February.
Is September a good time to visit Mile 91?
Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
September is a weaker month for outdoor sightseeing in Mile 91.
What to pack for Mile 91 in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Mile 91 sees daytime highs around 29°C and nights near 23°C. Pack light clothes and rain gear. About 29 days see rain.
UV index in Mile 91 in September
Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Mile 91 peaks around August 20 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 8 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 9 | 12 | 12 | 10 | 12 | 12 | 11 | 13 | 12 | 11 | 9 | 8 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 9 | Very high |
| Feb | 12 | Extreme |
| Mar | 12 | Extreme |
| Apr | 10 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 11 | Extreme |
| Aug | 13 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 8 | Very high |
Air quality in Mile 91 in September
Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.
Air quality in Mile 91 is worst in April — around 202 µg/m³ PM2.5 (very unhealthy), about 19.4× the cleanest month (August, 10 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 70 | 77 | 194 | 202 | 33 | 19 | 13 | 10 | 11 | 17 | 25 | 50 |
| Level | Unhealthy | Unhealthy | Very unhealthy | Very unhealthy | Moderate | Moderate | Moderate | Good | Good | Moderate | Moderate | Poor |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 70 | Unhealthy |
| Feb | 77 | Unhealthy |
| Mar | 194 | Very unhealthy |
| Apr | 202 | Very unhealthy |
| May | 33 | Moderate |
| Jun | 19 | Moderate |
| Jul | 13 | Moderate |
| Aug | 10 | Good |
| Sep | 11 | Good |
| Oct | 17 | Moderate |
| Nov | 25 | Moderate |
| Dec | 50 | Poor |
Where is Mile 91?
Mile 91 sits at 8.5°N, 12.2°W, 77 m above sea level, in Sierra Leone. The nearest listed city is Njala, 34 km away.
Topography around Mile 91
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Mile 91.
Within 3 km, the terrain around Mile 91 has only modest variations in elevation — a maximum elevation change of 31 m around an average of 73 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 438 m; within 80 km, large variations in elevation — a maximum elevation change of 820 m.
The land around Mile 91 is covered by grassland (62%) within 3 km, grassland (58%) and trees (26%) within 16 km, and trees (57%) and grassland (24%) within 80 km.
Sierra Leone travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type D / G
- 230 V · 50 Hz
- Prices
- ≈ 24% of US
- price level, 2025
- GDP per capita
- $846
- 2025
- Happiness
- 3.3 / 10
- World Happiness, 2025
- Safe drinking water
- 11%
- of population, 2024
- Homicide rate
- 2.2
- per 100k, 2020
- Road deaths
- 33
- per 100k/yr, 2019
- Income group
- Low
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Mile 91 (8.466°, -12.2146°, elevation 77 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).