Climate averages 1991–2020
Katoro weather
in September.
A hot, moderately wet month: the joint 2nd warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Katoro: daytime highs average 28.1°C and nights cool to about 18.3°C. By daytime temperature it is the joint 2nd warmest of the 12 months.
Expect about 73 mm of rain on roughly 10 days, which makes September a moderately wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 05 min on an average September day.
The nearest other city in this atlas is Geita (36 km away). In September its highs average 28.4°C, about as warm as Katoro, with 81 mm of rain.
Among the 43 cities listed in Tanzania, Katoro ranks 24th of 43 for the warmest September highs and 40th of 43 for the driest September (rainfall, lowest first). The mean September high of those 43 cities is 28.0°C; Katoro is 0.2°C warmer than that mean.
From September to October, average highs fall by 1.4°C to 26.7°C, and monthly rainfall rises from 73 mm to 146 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
Katoro climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.0°C17.4°C | 17.4°C | 139 | 21.4 | 12.312 h |
| February | 27.0°C17.8°C | 17.8°C | 98 | 16.3 | 12.212 h |
| March | 26.9°C17.9°C | 17.9°C | 162 | 20.7 | 12.112 h |
| April | 26.0°C17.7°C | 17.7°C | 176 | 20.0 | 12.012 h |
| May | 26.6°C17.8°C | 17.8°C | 58 | 8.6 | 12.012 h |
| June | 27.5°C17.6°C | 17.6°C | 10 | 2.1 | 12.012 h |
| July | 28.1°C17.5°C | 17.5°C | 6.0 | 1.0 | 12.012 h |
| August | 28.4°C18.1°C | 18.1°C | 29 | 4.5 | 12.012 h |
| September, selected | 28.1°C18.3°C | 18.3°C | 73 | 10.4 | 12.112 h |
| October | 26.7°C18.2°C | 18.2°C | 146 | 18.9 | 12.212 h |
| November | 25.4°C17.6°C | 17.6°C | 232 | 25.7 | 12.212 h |
| December | 25.4°C17.3°C | 17.3°C | 201 | 25.1 | 12.312 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
- Geita in SeptemberTanzania · 36 kmHigh 28.4°C · Low 18.0°C · 81 mm rain
- Ushirombo in SeptemberTanzania · 55 kmHigh 30.4°C · Low 18.8°C · 24 mm rain
- Sengerema in SeptemberTanzania · 88 kmHigh 27.9°C · Low 18.0°C · 66 mm rain
- Kahama in SeptemberTanzania · 119 kmHigh 30.4°C · Low 19.1°C · 13 mm rain
- Mwanza in SeptemberTanzania · 120 kmHigh 25.7°C · Low 20.9°C · 104 mm rain
- Shinyanga in SeptemberTanzania · 181 kmHigh 31.7°C · Low 19.5°C · 4.1 mm rain
- Bukoba in SeptemberTanzania · 186 kmHigh 24.4°C · Low 19.3°C · 110 mm rain
- Nzega in SeptemberTanzania · 194 kmHigh 30.9°C · Low 18.6°C · 3.6 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 Katoro) is explained once on the Katoro year overview and on the Sources, method and limits page.