Climate averages 1991–2020

Mwanza weather
in January.

A warm, wet month: the 10th warmest and the 7th driest of the year.

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

Average high 25.0°C Daytime mean, January

Average low 20.9°C Night-time mean, January

Rainfall 159 mm 22 days with ≥1 mm

Daylight 12 h Sunrise to sunset, per day

January is a warm month in Mwanza: daytime highs average 25.0°C and nights cool to about 20.9°C. By daytime temperature it is the 10th warmest of the 12 months.

Expect about 159 mm of rain on roughly 22 days, which makes January a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 15 min on an average January day.

The nearest other city in this atlas is Sengerema (32 km away). In January its highs average 25.9°C, 0.9°C warmer than Mwanza, with 112 mm of rain.

Among the 43 cities listed in Tanzania, Mwanza ranks joint 34th of 43 for the warmest January highs and 29th of 43 for the driest January (rainfall, lowest first). The mean January high of those 43 cities is 27.1°C; Mwanza is 2.1°C cooler than that mean.

From January to February, average highs rise by 0.9°C to 25.9°C, and monthly rainfall falls from 159 mm to 116 mm.

The annual picture

January in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Mwanza climate table

1991–2020

Monthly climate averages for Mwanza, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January, selected	25.0°C20.9°C	20.9°C	159	22.3	12.212 h
February	25.9°C21.4°C	21.4°C	116	15.8	12.212 h
March	25.9°C21.4°C	21.4°C	181	19.2	12.112 h
April	25.4°C21.0°C	21.0°C	195	20.0	12.112 h
May	25.7°C21.0°C	21.0°C	88	12.6	12.012 h
June	25.7°C20.5°C	20.5°C	33	6.2	12.012 h
July	25.5°C19.9°C	19.9°C	12	2.7	12.012 h
August	25.5°C20.3°C	20.3°C	53	8.3	12.012 h
September	25.7°C20.9°C	20.9°C	104	15.4	12.112 h
October	25.1°C20.8°C	20.8°C	211	24.4	12.212 h
November	24.4°C20.7°C	20.7°C	266	26.0	12.212 h
December	24.5°C20.6°C	20.6°C	224	25.7	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

January in nearby cities

Distance from Mwanza

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 Mwanza) is explained once on the Mwanza year overview and on the Sources, method and limits page.