Climate averages 1991–2020
Bo weather
in October.
A hot, very wet month: the 9th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a hot month in Bo: daytime highs average 28.8°C and nights cool to about 22.1°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 245 mm of rain on roughly 29 days, which makes October a very wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 57 min on an average October day.
The nearest other city in this atlas is Kenema (61 km away). In October its highs average 28.7°C, about as warm as Bo, with 227 mm of rain.
Among the 5 cities listed in Sierra Leone, Bo ranks 2nd of 5 for the warmest October highs and 3rd of 5 for the driest October (rainfall, lowest first). The mean October high of those 5 cities is 28.4°C; Bo is 0.4°C warmer than that mean.
From October to November, average highs rise by 0.5°C to 29.4°C, and monthly rainfall falls from 245 mm to 103 mm.
The annual picture
October 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
Bo climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 33.1°C21.9°C | 21.9°C | 17 | 3.7 | 11.712 h |
| February | 34.3°C22.9°C | 22.9°C | 20 | 4.7 | 11.912 h |
| March | 33.9°C23.6°C | 23.6°C | 56 | 11.4 | 12.112 h |
| April | 32.2°C23.6°C | 23.6°C | 120 | 18.0 | 12.312 h |
| May | 30.4°C23.2°C | 23.2°C | 246 | 27.0 | 12.512 h |
| June | 29.0°C22.4°C | 22.4°C | 333 | 28.9 | 12.613 h |
| July | 27.7°C21.9°C | 21.9°C | 396 | 29.1 | 12.513 h |
| August | 27.2°C21.8°C | 21.8°C | 476 | 29.4 | 12.412 h |
| September | 28.1°C21.9°C | 21.9°C | 433 | 29.3 | 12.212 h |
| October, selected | 28.8°C22.1°C | 22.1°C | 245 | 29.2 | 12.012 h |
| November | 29.4°C22.3°C | 22.3°C | 103 | 19.3 | 11.812 h |
| December | 30.8°C22.2°C | 22.2°C | 26 | 6.4 | 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
October in nearby cities
- Kenema in OctoberSierra Leone · 61 kmHigh 28.7°C · Low 22.1°C · 227 mm rain
- Makeni in OctoberSierra Leone · 108 kmHigh 29.3°C · Low 22.5°C · 294 mm rain
- Koidu in OctoberSierra Leone · 113 kmHigh 28.2°C · Low 21.4°C · 322 mm rain
- Freetown in OctoberSierra Leone · 175 kmHigh 27.2°C · Low 24.3°C · 232 mm rain
- Gueckedou in OctoberGuinea · 189 kmHigh 28.3°C · Low 21.1°C · 282 mm rain
- Monrovia in OctoberLiberia · 212 kmHigh 28.1°C · Low 23.0°C · 358 mm rain
- Kissidougou in OctoberGuinea · 226 kmHigh 28.6°C · Low 20.5°C · 306 mm rain
- Faranah in OctoberGuinea · 255 kmHigh 29.5°C · Low 21.2°C · 223 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 Bo) is explained once on the Bo year overview and on the Sources, method and limits page.