Deder weather in December

In December, Deder sees average daytime highs of 23°C and overnight lows near 12°C, with 17 mm of rain across 2.9 wet days and about 11.5 hours of daylight. It is the 9th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 54% of the time in December, and the air most often feels dry.

Daylight stretches from about 11 h 30 min at the start of December to 11 h 30 min by month's end. Set against the rest of the year, December is Deder's 1st-clearest and 8th-windiest month. For the whole year in context, see Deder's year-round climate.

Daytime high
23°
9th warmest
Overnight low
12°
1st coldest
Rainfall
17 mm
2.9 wet days
Daylight
11 h 30 min
6:27 AM – 5:54 PM
Cloud cover
36%
1st clearest
Wind
5 km/h
8th windiest
Solar energy
5.62 kWh/m²
Travel score
8.3
out of 10

Deder is town in Oromia, Ethiopia.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 23°C through the month.

A typical December day in Deder reaches about 23°C in the afternoon and slips back to 12°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 24°C. Set against its neighbours, December runs on par with November and on par with January.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
12312
22312
32312
42312
52312
62312
72312
82312
92312
102312
112312
122312
132312
142312
152312
162312
172311
182311
192311
202311
212311
222311
232311
242311
252311
262311
272311
282312
292312
302312
312312

Deder weather by month

How December compares with the rest of the year at a glance. December is the 9th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 12°183.811.58.3
Feb25° / 14°254.111.78.0
Mar25° / 15°9010.411.96.9
Apr24° / 15°18518.412.25.6
May24° / 15°25022.912.45.0
Jun24° / 15°751512.56.1
Jul23° / 14°941912.55.5
Aug22° / 14°1062012.35.3
Sep23° / 15°8916.412.15.9
Oct23° / 13°1001311.86.6
Nov23° / 12°405.111.67.9
Dec23° / 12°172.911.58.3

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 54% of the time in December, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 23% of December, with mostly cloudy or overcast conditions the remaining 23%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17525
27525
37624
47624
57624
67723
77723
87723
97723
107822
117921
127921
137921
147921
157921
167921
177921
187921
197921
207921
217822
227723
237723
247624
257624
267624
277624
287525
297525
307426
317426

Chance of precipitation in December

Any precipitation

Deder gets around 17 mm of rain over 2.9 wet days in December, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 10% and peaks near 15% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
115
215
315
414
514
613
713
812
912
1011
1111
1210
139
149
159
168
178
188
197
207
217
227
237
247
257
268
278
288
298
308
318

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the dry band about 94% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
18713
28812
38812
48911
58911
69010
79010
8919
9919
10928
11937
12937
13946
14946
15955
16955
17964
18964
19964
20964
21964
22973
23973
24973
25973
26973
27964
28964
29964
30964
31964

Wind in December

Winds average 5 km/h in December.

Across December, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 30 min at the start of December to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 6:19 AM to 6:33 AM, and sunset from 5:49 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:195:49
211.56:205:49
311.56:205:49
411.56:215:50
511.56:215:50
611.56:225:50
711.56:225:51
811.56:235:51
911.56:235:51
1011.56:245:52
1111.56:245:52
1211.56:255:53
1311.56:255:53
1411.56:265:53
1511.56:265:54
1611.56:275:54
1711.56:275:55
1811.56:285:55
1911.56:285:56
2011.56:295:56
2111.56:295:56
2211.56:305:57
2311.56:305:57
2411.56:305:58
2511.56:315:58
2611.56:315:59
2711.56:325:59
2811.56:326:00
2911.56:336:00
3011.56:336:01
3111.56:336:01

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.62 kWh/m².

For context, solar energy here swings from a low near 5.21 kWh/m² to a high of 6.23 kWh/m² in February across the year — December's 5.62 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.6Bright
65.6Bright
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.7Bright
165.7Bright
175.7Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in December

Hazard calendar for Deder

In seasonPeak

None of Deder's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Deder's rainy season runs April–May, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Deder?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

8.3
Sightseeing
1st-best month of the year
6.3
Beach & pool
4th-best month of the year

December is one of the better times to visit Deder for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Deder in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Deder sees daytime highs around 23°C and nights near 12°C. Worth packing: light clothes and sun protection.

light clothessun protection

UV index in Deder in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Deder peaks around March 18 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 at about 11 (extreme).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 18UV 16Nov 23UV 11
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar16Extreme
Apr15Extreme
May13Extreme
Jun12Extreme
Jul11Extreme
Aug14Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec11Extreme

Air quality in Deder in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Deder is worst in November — around 28 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Modeled monthly averages (CAMS reanalysis, 2015–2024).

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateNov 2128 µg/m³Aug 1819 µg/m³
PM2.5 (µg/m³)Level
Jan27Moderate
Feb27Moderate
Mar26Moderate
Apr22Moderate
May21Moderate
Jun24Moderate
Jul23Moderate
Aug19Moderate
Sep21Moderate
Oct27Moderate
Nov28Moderate
Dec28Moderate
Location & terrain

Where is Deder?

Deder sits at 9.3°N, 41.4°E, 2,330 m above sea level, in Ethiopia. The nearest listed city is Chelenko, 16 km away.

Topography around Deder

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Deder.

Within 3 km, the terrain around Deder has large variations in elevation — a maximum elevation change of 794 m around an average of 2,304 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,641 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,673 m.

The land around Deder is covered by cropland (48%) and shrubs (38%) within 3 km, shrubs (54%) and cropland (41%) within 16 km, and shrubs (57%) and grassland (20%) within 80 km.

3 km
794 m
16 km
1,641 m
80 km
2,673 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
December weather nearby: Chelenko 16 km · Hīrna 39 km · Dire Dawa 56 km · ‘Alemaya 63 km · Āsbe Teferī 68 km · Harar 74 km · Mī’ēso 76 km · Felana 83 km

Ethiopia travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type C / E / F / L
220 V · 50 Hz
Prices
≈ 37% of US
price level, 2025
GDP per capita
$933
2025
Happiness
4.0 / 10
World Happiness, 2025
Safe drinking water
14%
of population, 2024
Homicide rate
8.5
per 100k, 2012
Road deaths
28.2
per 100k/yr, 2019
Income group
Low
World Bank
English
Low
EF EPI 499
Religion
Ethiopian Orthodox 44%Muslim 31%Protestant 23%other 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Deder (9.3117°, 41.443°, elevation 2,330 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).