Climate averages 1991–2020
Katoro weather
in December.
A warm, very wet month: one of the coolest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a warm month in Katoro: daytime highs average 25.4°C and nights cool to about 17.3°C. By daytime temperature it is one of the coolest months of the year.
Expect about 201 mm of rain on roughly 25 days, which makes December a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 17 min on an average December day.
The nearest other city in this atlas is Geita (36 km away). In December its highs average 25.6°C, about as warm as Katoro, with 191 mm of rain.
Among the 43 cities listed in Tanzania, Katoro ranks 30th of 43 for the warmest December highs and 34th of 43 for the driest December (rainfall, lowest first). The mean December high of those 43 cities is 27.1°C; Katoro is 1.7°C cooler than that mean.
From December to January, average highs rise by 0.6°C to 26.0°C, and monthly rainfall falls from 201 mm to 139 mm.
The annual picture
December 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 | 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, selected | 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
December in nearby cities
- Geita in DecemberTanzania · 36 kmHigh 25.6°C · Low 17.3°C · 191 mm rain
- Ushirombo in DecemberTanzania · 55 kmHigh 26.5°C · Low 17.3°C · 151 mm rain
- Sengerema in DecemberTanzania · 88 kmHigh 25.2°C · Low 17.4°C · 167 mm rain
- Kahama in DecemberTanzania · 119 kmHigh 26.6°C · Low 17.7°C · 129 mm rain
- Mwanza in DecemberTanzania · 120 kmHigh 24.5°C · Low 20.6°C · 224 mm rain
- Shinyanga in DecemberTanzania · 181 kmHigh 28.0°C · Low 19.1°C · 113 mm rain
- Bukoba in DecemberTanzania · 186 kmHigh 24.1°C · Low 19.6°C · 140 mm rain
- Nzega in DecemberTanzania · 194 kmHigh 27.1°C · Low 18.2°C · 134 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.