Climate averages 1991–2020
Kenema weather
in September.
A warm, very wet month: the 10th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Kenema: daytime highs average 27.9°C and nights cool to about 22.0°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 395 mm of rain on roughly 29 days, which makes September a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 10 min on an average September day.
The nearest other city in this atlas is Bo (61 km away). In September its highs average 28.1°C, about as warm as Kenema, with 433 mm of rain.
Among the 5 cities listed in Sierra Leone, Kenema ranks 3rd of 5 for the warmest September highs and 1st of 5 for the driest September (rainfall, lowest first). The mean September high of those 5 cities is 27.6°C; Kenema is 0.3°C warmer than that mean.
From September to October, average highs rise by 0.8°C to 28.7°C, and monthly rainfall falls from 395 mm to 227 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Kenema climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 32.5°C21.9°C | 21.9°C | 15 | 3.4 | 11.712 h |
| February | 33.8°C22.9°C | 22.9°C | 19 | 4.5 | 11.912 h |
| March | 33.2°C23.6°C | 23.6°C | 58 | 10.3 | 12.112 h |
| April | 31.6°C23.6°C | 23.6°C | 114 | 17.1 | 12.312 h |
| May | 30.0°C23.1°C | 23.1°C | 221 | 26.3 | 12.512 h |
| June | 28.7°C22.4°C | 22.4°C | 287 | 28.0 | 12.613 h |
| July | 27.4°C21.8°C | 21.8°C | 355 | 28.3 | 12.513 h |
| August | 27.1°C21.7°C | 21.7°C | 413 | 28.9 | 12.412 h |
| September, selected | 27.9°C22.0°C | 22.0°C | 395 | 28.9 | 12.212 h |
| October | 28.7°C22.1°C | 22.1°C | 227 | 28.5 | 12.012 h |
| November | 29.1°C22.3°C | 22.3°C | 90 | 17.0 | 11.812 h |
| December | 30.4°C22.2°C | 22.2°C | 21 | 5.0 | 11.712 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Bo in SeptemberSierra Leone · 61 kmHigh 28.1°C · Low 21.9°C · 433 mm rain
- Koidu in SeptemberSierra Leone · 89 kmHigh 27.3°C · Low 21.4°C · 422 mm rain
- Gueckedou in SeptemberGuinea · 139 kmHigh 27.5°C · Low 21.2°C · 351 mm rain
- Makeni in SeptemberSierra Leone · 146 kmHigh 28.4°C · Low 22.4°C · 413 mm rain
- Monrovia in SeptemberLiberia · 181 kmHigh 27.1°C · Low 22.9°C · 530 mm rain
- Kissidougou in SeptemberGuinea · 188 kmHigh 27.6°C · Low 20.7°C · 323 mm rain
- Gbarnga in SeptemberLiberia · 213 kmHigh 27.7°C · Low 21.9°C · 309 mm rain
- Freetown in SeptemberSierra Leone · 235 kmHigh 26.4°C · Low 23.9°C · 479 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Kenema) is explained once on the Kenema year overview and on the Sources, method and limits page.