Climate averages 1991–2020

Njombe weather
in January.

A mild, very wet month: the 5th warmest and the wettest of the year.

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

Average high 21.5°C Daytime mean, January

Average low 13.4°C Night-time mean, January

Rainfall 268 mm 27 days with ≥1 mm

Daylight 13 h Sunrise to sunset, per day

January is a mild month in Njombe: daytime highs average 21.5°C and nights cool to about 13.4°C. By daytime temperature it is the 5th warmest of the 12 months.

Expect about 268 mm of rain on roughly 27 days, which makes January a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 36 min on an average January day.

The nearest other city in this atlas is Makumbako (56 km away). In January its highs average 23.4°C, 1.9°C warmer than Njombe, with 189 mm of rain.

Among the 43 cities listed in Tanzania, Njombe ranks 43rd of 43 for the warmest January highs and 38th of 43 for the driest January (rainfall, lowest first). The mean January high of those 43 cities is 27.1°C; Njombe is 5.6°C cooler than that mean.

From January to February, average highs rise by 0.1°C to 21.6°C, and monthly rainfall falls from 268 mm to 263 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

Njombe climate table

1991–2020

Monthly climate averages for Njombe, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January, selected	21.5°C13.4°C	13.4°C	268	26.5	12.613 h
February	21.6°C13.3°C	13.3°C	263	23.8	12.412 h
March	20.8°C13.6°C	13.6°C	228	27.2	12.212 h
April	19.6°C13.2°C	13.2°C	83	18.5	11.912 h
May	19.0°C11.0°C	11.0°C	18	5.4	11.712 h
June	18.0°C8.6°C	8.6°C	3.0	0.8	11.612 h
July	17.5°C7.6°C	7.6°C	2.2	0.4	11.612 h
August	18.9°C8.4°C	8.4°C	3.7	0.9	11.812 h
September	20.9°C9.4°C	9.4°C	3.6	0.9	12.012 h
October	22.3°C11.2°C	11.2°C	18	5.5	12.312 h
November	22.6°C12.7°C	12.7°C	54	10.5	12.513 h
December	21.7°C13.4°C	13.4°C	171	20.8	12.713 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 Njombe

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