Climate averages 1991–2020
Musanze weather
in September.
A warm, wet month: the 3rd warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Musanze: daytime highs average 23.4°C and nights cool to about 15.5°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 114 mm of rain on roughly 16 days, which makes September a wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 06 min on an average September day.
The nearest other city in this atlas is Rutshuru (41 km away). In September its highs average 25.9°C, 2.4°C warmer than Musanze, with 230 mm of rain.
Among the 5 cities listed in Rwanda, Musanze ranks 5th of 5 for the warmest September highs and 5th of 5 for the driest September (rainfall, lowest first). The mean September high of those 5 cities is 24.9°C; Musanze is 1.5°C cooler than that mean.
From September to October, average highs fall by 0.7°C to 22.8°C, and monthly rainfall rises from 114 mm to 201 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
Musanze climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 22.9°C15.3°C | 15.3°C | 186 | 20.5 | 12.212 h |
| February | 23.5°C15.7°C | 15.7°C | 168 | 17.8 | 12.212 h |
| March | 23.2°C15.5°C | 15.5°C | 234 | 24.8 | 12.112 h |
| April | 22.3°C15.1°C | 15.1°C | 200 | 26.2 | 12.112 h |
| May | 22.1°C15.4°C | 15.4°C | 118 | 18.7 | 12.012 h |
| June | 22.6°C15.8°C | 15.8°C | 39 | 6.9 | 12.012 h |
| July | 23.3°C15.8°C | 15.8°C | 19 | 3.7 | 12.012 h |
| August | 23.7°C15.8°C | 15.8°C | 67 | 10.2 | 12.112 h |
| September, selected | 23.4°C15.5°C | 15.5°C | 114 | 15.8 | 12.112 h |
| October | 22.8°C15.1°C | 15.1°C | 201 | 23.0 | 12.112 h |
| November | 22.3°C14.9°C | 14.9°C | 222 | 25.3 | 12.212 h |
| December | 22.4°C15.0°C | 15.0°C | 207 | 23.3 | 12.212 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
- Rutshuru in SeptemberDemocratic Republic of the Congo · 41 kmHigh 25.9°C · Low 15.2°C · 230 mm rain
- Muhanga in SeptemberRwanda · 59 kmHigh 24.2°C · Low 13.3°C · 54 mm rain
- Gitarama in SeptemberRwanda · 65 kmHigh 24.2°C · Low 12.9°C · 54 mm rain
- Kigali in SeptemberRwanda · 69 kmHigh 25.7°C · Low 15.0°C · 54 mm rain
- Nyagatare in SeptemberRwanda · 80 kmHigh 27.1°C · Low 16.0°C · 65 mm rain
- Rutoma in SeptemberUganda · 133 kmHigh 25.5°C · Low 15.8°C · 116 mm rain
- Bukavu in SeptemberDemocratic Republic of the Congo · 141 kmHigh 25.9°C · Low 16.5°C · 85 mm rain
- Mbarara in SeptemberUganda · 150 kmHigh 25.9°C · Low 15.7°C · 70 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 Musanze) is explained once on the Musanze year overview and on the Sources, method and limits page.