Climate averages 1991–2020
Conakry weather
in September.
A warm, very wet month: the 10th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Conakry: daytime highs average 27.3°C and nights cool to about 23.9°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 516 mm of rain on roughly 29 days, which makes September a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 11 min on an average September day.
The nearest other city in this atlas is Dubréka (33 km away). In September its highs average 28.4°C, 1.0°C warmer than Conakry, with 465 mm of rain.
Among the 13 cities listed in Guinea, Conakry ranks 10th of 13 for the warmest September highs and 13th of 13 for the driest September (rainfall, lowest first). The mean September high of those 13 cities is 27.8°C; Conakry is 0.4°C cooler than that mean.
From September to October, average highs rise by 1.0°C to 28.3°C, and monthly rainfall falls from 516 mm to 225 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
Conakry climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.8°C23.4°C | 23.4°C | 3.0 | 1.0 | 11.612 h |
| February | 29.8°C23.7°C | 23.7°C | 1.0 | 0.4 | 11.812 h |
| March | 29.9°C24.4°C | 24.4°C | 0.7 | 0.2 | 12.112 h |
| April | 29.9°C25.0°C | 25.0°C | 4.5 | 1.2 | 12.312 h |
| May | 29.5°C25.5°C | 25.5°C | 88 | 12.8 | 12.613 h |
| June | 28.1°C24.7°C | 24.7°C | 358 | 27.3 | 12.713 h |
| July | 26.8°C24.0°C | 24.0°C | 777 | 30.5 | 12.613 h |
| August | 26.5°C23.9°C | 23.9°C | 864 | 30.5 | 12.412 h |
| September, selected | 27.3°C23.9°C | 23.9°C | 516 | 28.8 | 12.212 h |
| October | 28.3°C24.3°C | 24.3°C | 225 | 27.6 | 11.912 h |
| November | 29.0°C24.7°C | 24.7°C | 77 | 16.6 | 11.712 h |
| December | 29.7°C24.2°C | 24.2°C | 12 | 3.0 | 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
September in nearby cities
- Dubréka in SeptemberGuinea · 33 kmHigh 28.4°C · Low 23.2°C · 465 mm rain
- Manéah in SeptemberGuinea · 36 kmHigh 28.0°C · Low 23.0°C · 465 mm rain
- Kindia in SeptemberGuinea · 106 kmHigh 27.8°C · Low 21.4°C · 326 mm rain
- Freetown in SeptemberSierra Leone · 127 kmHigh 26.4°C · Low 23.9°C · 479 mm rain
- Kamsar in SeptemberGuinea · 161 kmHigh 28.1°C · Low 24.0°C · 405 mm rain
- Makeni in SeptemberSierra Leone · 193 kmHigh 28.4°C · Low 22.4°C · 413 mm rain
- Mamou in SeptemberGuinea · 197 kmHigh 26.8°C · Low 20.0°C · 334 mm rain
- Labé in SeptemberGuinea · 250 kmHigh 25.9°C · Low 18.4°C · 259 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 Conakry) is explained once on the Conakry year overview and on the Sources, method and limits page.