Climate averages 1991–2020
Bo weather
in June.
A hot, very wet month: the 8th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a hot month in Bo: daytime highs average 29.0°C and nights cool to about 22.4°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 333 mm of rain on roughly 29 days, which makes June a very wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 35 min on an average June day.
The nearest other city in this atlas is Kenema (61 km away). In June its highs average 28.7°C, about as warm as Bo, with 287 mm of rain.
Among the 5 cities listed in Sierra Leone, Bo ranks 2nd of 5 for the warmest June highs and 3rd of 5 for the driest June (rainfall, lowest first). The mean June high of those 5 cities is 28.5°C; Bo is 0.5°C warmer than that mean.
From June to July, average highs fall by 1.3°C to 27.7°C, and monthly rainfall rises from 333 mm to 396 mm.
The annual picture
June 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, selected | 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 | 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
June in nearby cities
- Kenema in JuneSierra Leone · 61 kmHigh 28.7°C · Low 22.4°C · 287 mm rain
- Makeni in JuneSierra Leone · 108 kmHigh 29.3°C · Low 23.0°C · 306 mm rain
- Koidu in JuneSierra Leone · 113 kmHigh 28.1°C · Low 21.9°C · 335 mm rain
- Freetown in JuneSierra Leone · 175 kmHigh 27.2°C · Low 24.5°C · 397 mm rain
- Gueckedou in JuneGuinea · 189 kmHigh 28.3°C · Low 21.7°C · 278 mm rain
- Monrovia in JuneLiberia · 212 kmHigh 27.6°C · Low 23.2°C · 492 mm rain
- Kissidougou in JuneGuinea · 226 kmHigh 28.6°C · Low 21.2°C · 246 mm rain
- Faranah in JuneGuinea · 255 kmHigh 29.7°C · Low 22.2°C · 213 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.