Climate in Oromiya

Average daytime and nighttime temperatures

All climatic diagrams on this site result from the collected data from three measuring weather stations in Oromiya.
Weather stations at an altitude above 2350m have not been included.
All data correspond to the average monthly values of the last 20 years.

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Oromiya is one of the coldest regions in Ethiopia with an average daily high temperature of only 25 degrees centigrade. Several months of the year it is warm to hot at temperatures continuously above 25 degrees centigrade, sometimes up to 28 degrees.
Overview: Climate in Ethiopia
Daylengths and sun positions in Ethiopia
Compare climate with other regions or countries
Hours of sunshine per daySunshine hours per day in Oromiya
The number of hours of sunshine refers to the time when the sun is actually visible. That is, without any obstruction of visibility by clouds, fog or mountains. With 9 hours per day, December is the sunniest month in the region of Oromiya. In August the sun shines the shortest.
Rainy days per monthRainy days per month in Oromiya
A rainy day is a day on which at least an amount of 0.1 mm precipitation (=0.1 liter) per square meter falls. This can be rain, snow, hail or even dew. So it does not have to rain the whole day. With 25 rainy days, August offers the most number of rainy days, and in January the least.
Precipitation in mm/dayPrecipitation in Oromiya
The amount of precipitation is measured in millimeters per square meter. Thus, at two mm/day, two liters of water fall on one square meter within 24 hours. With only 0.7 mm, the least rain falls in January. August, on the other hand, has the most rain.
Relative humidity in %Relative humidity in Oromiya
Warm air can absorb more moisture than cold air. The relative humidity indicates how much moisture of the physically possible is actually contained in the air. At high humidity, the person feels uncomfortable and perceives this as oppressive. In general, a relative humidity of 40-60% gives as pleasant. With only 55% humidity on average, it is quite dry in February. The highest value of 82% is experienced here in July.
Absolute humidity in g/m³Absolute humidity in Oromiya
In warm months, there is also a higher absolute humidity almost everywhere. At a temperature of 25°C, air can absorb up to 23 grams of water per cubic meter. At 20°C, it is only 17.3 grams. A relative humidity of 40% at 25°C thus corresponds to an absolute humidity of 9.2 grams of water. From a proportion of approx. 13.5 grams, humans perceive the air as muggy.
Humidex in °CHumidex in Oromiya
The "Humidex" (humidity index) is an index of well-being in warmer areas, calculated from the air temperature, relative humidity and dew point. The index corresponds approximately to the temperature felt. At high temperatures, the body transports heat away by sweating. At high humidity the ambient air can only absorb a small amount of sweat and thus one feels uncomfortable. An index of 20-29 is considered comfortable. Up to 39, people perceive the air as slightly uncomfortable, and above 40, as very uncomfortable. Values above 45 are dangerous in the long run and often lead to heat stroke.
Climate charts for other regions in Ethiopia

Map of Oromiya

Most important cities in the region »Oromiya«

Alone 3 cities with over 100,000 inhabitants are located here. The region has a west-east extension of about 730 km and over 640 km from north to south.

CityPopulationGeo position
Nazret213,9958° 33' 0"N39° 16' 0"E
Jima128,3067° 40' 0"N36° 49' 60"E
Bishoftu104,2158° 45' 8"N38° 58' 42"E
Shashemene85,8717° 12' 0"N38° 36' 0"E
Ziway49,4167° 55' 60"N38° 43' 0"E
Hagere Hiywet43,9208° 58' 60"N37° 51' 0"E
Waliso38,3948° 32' 3"N37° 57' 55"E
Mojo34,5478° 35' 12"N39° 7' 16"E
Goba34,3697° 1' 0"N39° 58' 60"E
Shakiso34,0785° 45' 0"N38° 55' 0"E
Gimbi31,8099° 10' 13"N35° 50' 6"E
Asbe Teferi30,7729° 5' 8"N40° 52' 1"E
Metu29,6488° 18' 0"N35° 34' 60"E
Agaro28,2687° 50' 60"N36° 38' 60"E
Kibre Mengist27,8545° 52' 60"N38° 58' 60"E
Dembi Dolo26,7488° 31' 60"N34° 47' 60"E
Fiche25,7589° 48' 0"N38° 43' 60"E
Mendi25,2399° 48' 0"N35° 6' 0"E
Asasa23,7907° 5' 60"N39° 12' 0"E
Genet23,7539° 4' 0"N38° 30' 0"E
Metahara23,4038° 54' 0"N39° 55' 0"E
Dodola23,1166° 58' 60"N39° 10' 60"E
Hagere Maryam22,1055° 38' 3"N38° 14' 10"E
Bedele20,2938° 27' 22"N36° 21' 11"E
Nejo20,1669° 30' 0"N35° 30' 0"E
Sebeta19,5338° 55' 0"N38° 37' 0"E
Yabelo17,8194° 52' 60"N38° 4' 60"E
Bedesa17,5268° 54' 0"N40° 46' 60"E
Wenji17,1208° 26' 60"N39° 16' 60"E
Ginir16,7577° 8' 22"N40° 42' 39"E

Data basis: German Weather Service, individual values averaged and supplemented by own elements. Data on cities and inhabitants:, United Nations Statistics Division and own research.
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