Climate averages 1991–2020
Koidu weather
in January.
A hot, very dry month: the 3rd warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a hot month in Koidu: daytime highs average 32.1°C and nights cool to about 20.4°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 11 mm of rain on roughly 2 days, which makes January a very dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 41 min on an average January day.
The nearest other city in this atlas is Kenema (89 km away). In January its highs average 32.5°C, about as warm as Koidu, with 15 mm of rain.
Among the 5 cities listed in Sierra Leone, Koidu ranks 4th of 5 for the warmest January highs and 3rd of 5 for the driest January (rainfall, lowest first). The mean January high of those 5 cities is 31.9°C; Koidu is 0.2°C warmer than that mean.
From January to February, average highs rise by 1.5°C to 33.6°C, and monthly rainfall rises from 11 mm to 14 mm.
The annual picture
January 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, selected | 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 | 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
January in nearby cities
- Kenema in JanuarySierra Leone · 89 kmHigh 32.5°C · Low 21.9°C · 15 mm rain
- Gueckedou in JanuaryGuinea · 93 kmHigh 32.5°C · Low 20.4°C · 15 mm rain
- Kissidougou in JanuaryGuinea · 113 kmHigh 32.9°C · Low 19.4°C · 8.9 mm rain
- Bo in JanuarySierra Leone · 113 kmHigh 33.1°C · Low 21.9°C · 17 mm rain
- Makeni in JanuarySierra Leone · 121 kmHigh 34.3°C · Low 21.9°C · 7.4 mm rain
- Faranah in JanuaryGuinea · 157 kmHigh 33.7°C · Low 20.0°C · 4.7 mm rain
- Mamou in JanuaryGuinea · 228 kmHigh 31.8°C · Low 18.0°C · 4.0 mm rain
- Gbarnga in JanuaryLiberia · 247 kmHigh 31.3°C · Low 22.2°C · 23 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.