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Monthly climate in Deder, Ethiopia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Deder features a hot semi-arid climate (BSh). Temperatures typically range between 17 °C (63 °F) and 21 °C (69 °F) through the year, but rarely can drop to 7 °C (46 °F) or can rise to as high as 29 °C (85 °F). The average annual precipitation amounts to about 1111 mm (43.7 inches) and receives 149 rainy days on the 1 mm (0.04 inches) threshold annually. Deder enjoys an average of 3975 hours of sunshine throughout the year, and daylight varies from 11 hours 34 minutes to 12 hours 38 minutes per day.

Monthly average temperatures in Deder, Ethiopia

The warmest months in Deder are March, April and May, with daily mean temperatures ranging from 20 to 21 °C (68 - 69 °F) throughout the day. The coldest temperatures usually occur in January, November and December, when daily mean temperatures range from 17 to 18 °C (63 - 65 °F) throughout the day. On average each year, Deder experiences 97 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Deder. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum27°C
(81°F)		28°C
(83°F)		29°C
(85°F)		29°C
(85°F)		29°C
(85°F)		27°C
(82°F)		26°C
(79°F)		26°C
(79°F)		26°C
(80°F)		26°C
(80°F)		26°C
(79°F)		26°C
(79°F)
Mean maximum26°C
(79°F)		28°C
(82°F)		28°C
(83°F)		28°C
(82°F)		27°C
(82°F)		26°C
(79°F)		25°C
(78°F)		25°C
(77°F)		25°C
(77°F)		26°C
(79°F)		25°C
(77°F)		25°C
(77°F)
Average high24°C
(75°F)		25°C
(78°F)		26°C
(79°F)		25°C
(77°F)		25°C
(77°F)		24°C
(76°F)		22°C
(73°F)		22°C
(73°F)		23°C
(73°F)		24°C
(75°F)		23°C
(74°F)		23°C
(74°F)
Daily mean18°C
(64°F)		19°C
(67°F)		21°C
(69°F)		20°C
(69°F)		20°C
(68°F)		19°C
(67°F)		18°C
(65°F)		18°C
(65°F)		19°C
(66°F)		19°C
(66°F)		18°C
(65°F)		17°C
(63°F)
Average low12°C
(54°F)		14°C
(57°F)		15°C
(60°F)		16°C
(61°F)		16°C
(60°F)		15°C
(60°F)		15°C
(58°F)		15°C
(59°F)		15°C
(60°F)		14°C
(57°F)		13°C
(55°F)		12°C
(53°F)
Mean minimum8°C
(47°F)		10°C
(51°F)		12°C
(54°F)		14°C
(58°F)		14°C
(57°F)		14°C
(57°F)		13°C
(56°F)		13°C
(56°F)		14°C
(57°F)		12°C
(53°F)		10°C
(51°F)		8°C
(48°F)
Minimum7°C
(46°F)		9°C
(49°F)		11°C
(52°F)		13°C
(56°F)		13°C
(55°F)		13°C
(56°F)		12°C
(53°F)		13°C
(55°F)		13°C
(55°F)		10°C
(50°F)		10°C
(50°F)		8°C
(47°F)

Compare climate in Deder with other places

Compare temperature, precipitation, sunshine, UV index in Deder, Ethiopia with other places around the world.

Monthly average precipitation in Deder, Ethiopia

Deder usually has the most precipitation in April, May and August, with an average of 20 rainy days and 175 mm (6.9 inches) of precipitation per month. The driest months in Deder are January, February and December. On average, 13 mm (0.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Deder. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)4 (0.1)22 (0.9)71 (2.8)161 (6.3)247 (9.7)100 (3.9)112 (4.4)118 (4.7)106 (4.2)114 (4.5)44 (1.7)12 (0.5)
Average precipitation days (≥ 1 mm)1371722152123201361

Monthly sunshine hours in Deder, Ethiopia

The sunniest months in Deder are March, May and August, when the sun shines an average of 11 hours 8 minutes a day. Least sunny months in Deder: January, February and November receive an average of 10 hours 16 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Deder. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours280313348331343332333345331341330343
Mean daily daylight hours11h 38m11h 49m12h 3m12h 19m12h 32m12h 38m12h 35m12h 23m12h 9m11h 53m11h 41m11h 34m

Solar UV radiation in Deder, Ethiopia

Deder experiences the highest level of ultraviolet (UV) radiation in March, April and September, when the maximum UV index can reach values of 15 - 16, which corresponds to the Extreme category of sun exposure. October, November and December are in the Extreme exposure category. In these months, the maximum values of the UV index do not exceed 12. For more detailed information, check out our hourly Deder UV Index data.

Average daily maximum UV levels by month for Deder. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)131516161513151515121211