Climate averages 1991–2020
Koidu weather
in June.
A hot, very wet month: the 9th 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 Koidu: daytime highs average 28.1°C and nights cool to about 21.9°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 335 mm of rain on roughly 28 days, which makes June a very wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 37 min on an average June day.
The nearest other city in this atlas is Kenema (89 km away). In June its highs average 28.7°C, 0.6°C warmer than Koidu, with 287 mm of rain.
Among the 5 cities listed in Sierra Leone, Koidu ranks 4th of 5 for the warmest June highs and 4th of 5 for the driest June (rainfall, lowest first). The mean June high of those 5 cities is 28.5°C; Koidu is 0.4°C cooler than that mean.
From June to July, average highs fall by 1.4°C to 26.7°C, and monthly rainfall rises from 335 mm to 369 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
Koidu climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 32.1°C20.4°C | 20.4°C | 11 | 2.4 | 11.712 h |
| February | 33.6°C21.9°C | 21.9°C | 14 | 2.9 | 11.812 h |
| March | 33.1°C23.1°C | 23.1°C | 63 | 10.3 | 12.112 h |
| April | 31.3°C23.2°C | 23.2°C | 105 | 15.7 | 12.312 h |
| May | 29.4°C22.7°C | 22.7°C | 235 | 25.4 | 12.513 h |
| June, selected | 28.1°C21.9°C | 21.9°C | 335 | 28.0 | 12.613 h |
| July | 26.7°C21.2°C | 21.2°C | 369 | 29.3 | 12.613 h |
| August | 26.3°C21.1°C | 21.1°C | 419 | 29.7 | 12.412 h |
| September | 27.3°C21.4°C | 21.4°C | 422 | 28.8 | 12.212 h |
| October | 28.2°C21.4°C | 21.4°C | 322 | 29.5 | 11.912 h |
| November | 28.5°C21.5°C | 21.5°C | 129 | 16.4 | 11.712 h |
| December | 29.9°C20.6°C | 20.6°C | 16 | 3.1 | 11.612 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 · 89 kmHigh 28.7°C · Low 22.4°C · 287 mm rain
- Gueckedou in JuneGuinea · 93 kmHigh 28.3°C · Low 21.7°C · 278 mm rain
- Kissidougou in JuneGuinea · 113 kmHigh 28.6°C · Low 21.2°C · 246 mm rain
- Bo in JuneSierra Leone · 113 kmHigh 29.0°C · Low 22.4°C · 333 mm rain
- Makeni in JuneSierra Leone · 121 kmHigh 29.3°C · Low 23.0°C · 306 mm rain
- Faranah in JuneGuinea · 157 kmHigh 29.7°C · Low 22.2°C · 213 mm rain
- Mamou in JuneGuinea · 228 kmHigh 28.1°C · Low 20.8°C · 282 mm rain
- Gbarnga in JuneLiberia · 247 kmHigh 28.3°C · Low 22.2°C · 220 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 Koidu) is explained once on the Koidu year overview and on the Sources, method and limits page.