Climate averages 1991–2020

Debre Birhan weather
in May.

A mild, moderately wet month: the warmest and the 6th driest of the year.

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

Average high 20.8°C Daytime mean, May
Average low 11.1°C Night-time mean, May
Rainfall 78 mm 9 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Debre Birhan · average highYear overview

May is a mild month in Debre Birhan: daytime highs average 20.8°C and nights cool to about 11.1°C. By daytime temperature it is the warmest month of the year.

Expect about 78 mm of rain on roughly 9 days, which makes May a moderately wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 34 min on an average May day.

The nearest other city in this atlas is Addis Ababa (113 km away). In May its highs average 22.9°C, 2.1°C warmer than Debre Birhan, with 177 mm of rain.

Among the 40 cities listed in Ethiopia, Debre Birhan ranks 40th of 40 for the warmest May highs and 17th of 40 for the driest May (rainfall, lowest first). The mean May high of those 40 cities is 25.5°C; Debre Birhan is 4.8°C cooler than that mean.

From May to June, average highs fall by 0.1°C to 20.7°C, and monthly rainfall rises from 78 mm to 113 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. 0510152025 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 6000

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

Every month, side by side

Debre Birhan climate table

1991–2020
Monthly climate averages for Debre Birhan, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 18.5°C7.4°C7.4°C498.311.612 h
February 19.6°C8.2°C8.2°C569.211.812 h
March 20.0°C9.4°C9.4°C15215.512.112 h
April 20.0°C10.2°C10.2°C16016.012.312 h
May, selected 20.8°C11.1°C11.1°C789.312.613 h
June 20.7°C10.9°C10.9°C11312.012.713 h
July 17.6°C10.0°C10.0°C48429.612.613 h
August 17.3°C9.9°C9.9°C57930.612.412 h
September 18.0°C9.7°C9.7°C25221.712.212 h
October 18.3°C8.2°C8.2°C476.411.912 h
November 18.3°C7.3°C7.3°C234.211.712 h
December 18.2°C6.9°C6.9°C174.011.612 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 Debre Birhan

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