Climate averages 1991–2020
Nansana weather
in September.
A warm, wet month: the 4th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Nansana: daytime highs average 24.7°C and nights cool to about 16.8°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 121 mm of rain on roughly 25 days, which makes September a wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 07 min on an average September day.
The nearest other city in this atlas is Kampala (8 km away). In September its highs average 24.2°C, 0.5°C cooler than Nansana, with 121 mm of rain.
Among the 21 cities listed in Uganda, Nansana ranks joint 17th of 21 for the warmest September highs and joint 9th of 21 for the driest September (rainfall, lowest first). The mean September high of those 21 cities is 25.7°C; Nansana is 1.0°C cooler than that mean.
From September to October, average highs fall by 0.3°C to 24.4°C, and monthly rainfall rises from 121 mm to 154 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
Nansana climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.6°C17.1°C | 17.1°C | 108 | 19.6 | 12.112 h |
| February | 26.3°C17.6°C | 17.6°C | 104 | 18.6 | 12.112 h |
| March | 25.6°C17.9°C | 17.9°C | 165 | 25.1 | 12.112 h |
| April | 24.2°C17.9°C | 17.9°C | 220 | 27.7 | 12.112 h |
| May | 23.9°C17.4°C | 17.4°C | 188 | 27.8 | 12.112 h |
| June | 23.9°C16.6°C | 16.6°C | 115 | 22.5 | 12.112 h |
| July | 23.9°C16.2°C | 16.2°C | 83 | 17.7 | 12.112 h |
| August | 24.3°C16.4°C | 16.4°C | 109 | 22.7 | 12.112 h |
| September, selected | 24.7°C16.8°C | 16.8°C | 121 | 25.0 | 12.112 h |
| October | 24.4°C17.2°C | 17.2°C | 154 | 27.7 | 12.112 h |
| November | 24.1°C17.1°C | 17.1°C | 179 | 26.8 | 12.112 h |
| December | 24.6°C16.9°C | 16.9°C | 133 | 23.9 | 12.112 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
- Kampala in SeptemberUganda · 8 kmHigh 24.2°C · Low 18.0°C · 121 mm rain
- Kyengera in SeptemberUganda · 8 kmHigh 24.7°C · Low 17.9°C · 121 mm rain
- Kira in SeptemberUganda · 12 kmHigh 25.0°C · Low 17.2°C · 179 mm rain
- Kajansi in SeptemberUganda · 17 kmHigh 24.6°C · Low 18.8°C · 121 mm rain
- Mukono in SeptemberUganda · 25 kmHigh 25.1°C · Low 17.1°C · 140 mm rain
- Katabi in SeptemberUganda · 32 kmHigh 24.2°C · Low 19.4°C · 106 mm rain
- Lugazi in SeptemberUganda · 45 kmHigh 25.1°C · Low 17.1°C · 158 mm rain
- Mityana in SeptemberUganda · 57 kmHigh 25.5°C · Low 17.0°C · 144 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 Nansana) is explained once on the Nansana year overview and on the Sources, method and limits page.
Kampala, Kyengera and Kajansi lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.