Climate averages 1991–2020

Sumbawanga weather
in January.

A warm, very wet month: the 11th warmest and the wettest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 22.4°C Daytime mean, January
Average low 15.1°C Night-time mean, January
Rainfall 304 mm 28 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Sumbawanga · average highYear overview

January is a warm month in Sumbawanga: daytime highs average 22.4°C and nights cool to about 15.1°C. By daytime temperature it is the 11th warmest of the 12 months.

Expect about 304 mm of rain on roughly 28 days, which makes January a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 32 min on an average January day.

The nearest other city in this atlas is Mpanda (190 km away). In January its highs average 26.9°C, 4.4°C warmer than Sumbawanga, with 176 mm of rain.

Among the 43 cities listed in Tanzania, Sumbawanga ranks 42nd of 43 for the warmest January highs and 40th of 43 for the driest January (rainfall, lowest first). The mean January high of those 43 cities is 27.1°C; Sumbawanga is 4.7°C cooler than that mean.

From January to February, average highs rise by 0.3°C to 22.8°C, and monthly rainfall falls from 304 mm to 241 mm.

The annual picture

January in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 51015202530 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 3500

Averages 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

1991–2020
Monthly climate averages for Sumbawanga, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January, selected 22.4°C15.1°C15.1°C30428.412.513 h
February 22.8°C15.1°C15.1°C24123.812.412 h
March 22.7°C15.2°C15.2°C27926.012.212 h
April 22.3°C14.8°C14.8°C16018.811.912 h
May 22.7°C13.5°C13.5°C305.111.812 h
June 22.6°C11.7°C11.7°C1.80.211.712 h
July 22.5°C11.1°C11.1°C0.90.211.712 h
August 23.9°C12.5°C12.5°C2.10.411.912 h
September 25.4°C14.2°C14.2°C8.21.112.112 h
October 25.9°C15.9°C15.9°C395.712.312 h
November 24.5°C15.9°C15.9°C14815.612.512 h
December 22.7°C15.3°C15.3°C28226.412.613 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

January in nearby cities

Distance from Sumbawanga

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 limits

How 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.