Climate averages 1991–2020

Njombe weather
in May.

A mild, fairly dry month: the 9th warmest and the joint 5th driest of the year. Meets the pleasant-weather rule

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

Average high 19.0°C Daytime mean, May
Average low 11.0°C Night-time mean, May
Rainfall 18 mm 5 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Njombe · average highYear overview

May is a mild month in Njombe: daytime highs average 19.0°C and nights cool to about 11.0°C. By daytime temperature it is the 9th warmest of the 12 months.

Expect about 18 mm of rain on roughly 5 days, which makes May a fairly dry month (the joint 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 42 min on an average May day.

The nearest other city in this atlas is Makumbako (56 km away). In May its highs average 21.7°C, 2.6°C warmer than Njombe, with 5.1 mm of rain.

Among the 43 cities listed in Tanzania, Njombe ranks 43rd of 43 for the warmest May highs and joint 9th of 43 for the driest May (rainfall, lowest first). The mean May high of those 43 cities is 26.1°C; Njombe is 7.0°C cooler than that mean.

From May to June, average highs fall by 1.0°C to 18.0°C, and monthly rainfall falls from 18 mm to 3.0 mm.

The annual picture

May 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. 510152025 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 3000

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
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 21.5°C13.4°C13.4°C26826.512.613 h
February 21.6°C13.3°C13.3°C26323.812.412 h
March 20.8°C13.6°C13.6°C22827.212.212 h
April 19.6°C13.2°C13.2°C8318.511.912 h
May, selected 19.0°C11.0°C11.0°C185.411.712 h
June 18.0°C8.6°C8.6°C3.00.811.612 h
July 17.5°C7.6°C7.6°C2.20.411.612 h
August 18.9°C8.4°C8.4°C3.70.911.812 h
September 20.9°C9.4°C9.4°C3.60.912.012 h
October 22.3°C11.2°C11.2°C185.512.312 h
November 22.6°C12.7°C12.7°C5410.512.513 h
December 21.7°C13.4°C13.4°C17120.812.713 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

May 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.