Climate averages 1991–2020
Sumbawanga weather
in December.
A warm, very wet month: the joint 6th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a warm month in Sumbawanga: daytime highs average 22.7°C and nights cool to about 15.3°C. By daytime temperature it is the joint 6th warmest of the 12 months.
Expect about 282 mm of rain on roughly 26 days, which makes December a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 35 min on an average December day.
The nearest other city in this atlas is Mpanda (190 km away). In December its highs average 27.1°C, 4.4°C warmer than Sumbawanga, with 165 mm of rain.
Among the 43 cities listed in Tanzania, Sumbawanga ranks 42nd of 43 for the warmest December highs and 40th of 43 for the driest December (rainfall, lowest first). The mean December high of those 43 cities is 27.1°C; Sumbawanga is 4.4°C cooler than that mean.
From December to January, average highs fall by 0.3°C to 22.4°C, and monthly rainfall rises from 282 mm to 304 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
Sumbawanga climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 22.4°C15.1°C | 15.1°C | 304 | 28.4 | 12.513 h |
| February | 22.8°C15.1°C | 15.1°C | 241 | 23.8 | 12.412 h |
| March | 22.7°C15.2°C | 15.2°C | 279 | 26.0 | 12.212 h |
| April | 22.3°C14.8°C | 14.8°C | 160 | 18.8 | 11.912 h |
| May | 22.7°C13.5°C | 13.5°C | 30 | 5.1 | 11.812 h |
| June | 22.6°C11.7°C | 11.7°C | 1.8 | 0.2 | 11.712 h |
| July | 22.5°C11.1°C | 11.1°C | 0.9 | 0.2 | 11.712 h |
| August | 23.9°C12.5°C | 12.5°C | 2.1 | 0.4 | 11.912 h |
| September | 25.4°C14.2°C | 14.2°C | 8.2 | 1.1 | 12.112 h |
| October | 25.9°C15.9°C | 15.9°C | 39 | 5.7 | 12.312 h |
| November | 24.5°C15.9°C | 15.9°C | 148 | 15.6 | 12.512 h |
| December, selected | 22.7°C15.3°C | 15.3°C | 282 | 26.4 | 12.613 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
- Mpanda in DecemberTanzania · 190 kmHigh 27.1°C · Low 18.3°C · 165 mm rain
- Vwawa in DecemberTanzania · 193 kmHigh 24.7°C · Low 16.0°C · 224 mm rain
- Tunduma in DecemberTanzania · 195 kmHigh 24.0°C · Low 15.1°C · 249 mm rain
- Nakonde in DecemberZambia · 197 kmHigh 24.8°C · Low 15.9°C · 249 mm rain
- Baudhuinville in DecemberDemocratic Republic of the Congo · 229 kmHigh 25.3°C · Low 18.1°C · 216 mm rain
- Kasama in DecemberZambia · 254 kmHigh 25.8°C · Low 16.7°C · 267 mm rain
- Katumba in DecemberTanzania · 261 kmHigh 25.1°C · Low 17.4°C · 400 mm rain
- Kalemie in DecemberDemocratic Republic of the Congo · 349 kmHigh 26.3°C · Low 21.1°C · 123 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 Sumbawanga) is explained once on the Sumbawanga year overview and on the Sources, method and limits page.