Chelenko weather in September

In September, Chelenko sees average daytime highs of 26°C and overnight lows near 17°C, with 89 mm of rain across 16.6 wet days and about 12.1 hours of daylight. It is the 6th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 41% of the time in September, and the air most often feels comfortable.

Daylight stretches from about 12 h 12 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Chelenko's 9th-clearest and 6th-windiest month. For the whole year in context, see Chelenko's year-round climate.

Daytime high
26°
6th warmest
Overnight low
17°
10th coldest
Rainfall
89 mm
16.6 wet days
Daylight
12 h 06 min
6:07 AM – 6:10 PM
Cloud cover
47%
9th clearest
Wind
7 km/h
6th windiest
Solar energy
5.77 kWh/m²
Travel score
5.8
out of 10

Chelenko is town in Oromia region, Ethiopia.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical September day in Chelenko reaches about 26°C in the afternoon and slips back to 17°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 28°C. Set against its neighbours, September runs on par with August and on par with October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12617
22617
32617
42617
52617
62617
72617
82617
92617
102617
112617
122617
132617
142617
152617
162617
172617
182617
192617
202617
212617
222617
232617
242617
252617
262617
272617
282617
292617
302616

Chelenko weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 13°284.711.58.3
Feb25° / 14°374.911.77.8
Mar26° / 16°12311.411.96.6
Apr26° / 17°16814.812.25.9
May28° / 17°7810.112.46.4
Jun28° / 17°216.612.56.3
Jul27° / 17°7918.212.55.5
Aug26° / 17°11221.512.35.2
Sep26° / 17°8916.612.15.8
Oct26° / 15°657.511.87.4
Nov25° / 14°374.311.68.3
Dec24° / 13°223.211.58.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 38% of September, with mostly cloudy or overcast conditions the remaining 20%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18515
28515
38515
48416
58416
68416
78416
88416
98317
108317
118218
128218
138218
148020
158020
168020
177921
187921
197921
207822
217723
227723
237624
247624
257426
267426
277327
287327
297228
307228

Chance of precipitation in September

Any precipitation

Chelenko gets around 89 mm of rain over 16.6 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 55% and peaks near 65% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
165
264
364
463
563
663
762
862
961
1060
1160
1259
1358
1457
1556
1655
1754
1854
1953
2052
2150
2249
2348
2447
2546
2644
2743
2842
2941
3040

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the comfortable band about 62% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
123716
223725
324715
424715
525705
625705
725714
826704
926704
1027694
1127694
1228684
1329674
1429683
1530673
1631663
1732653
1833643
1934633
2035623
2137603
2238584
2340564
2442544
2544524
2645514
2747485
2849465
2951445
3052426

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 12 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over September. Sunrise moves from 6:08 AM to 6:05 AM, and sunset from 6:19 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:086:19
212.26:086:18
312.26:086:18
412.26:086:17
512.16:086:17
612.16:086:16
712.16:076:15
812.16:076:15
912.16:076:14
1012.16:076:13
1112.16:076:13
1212.16:076:12
1312.16:076:12
1412.16:076:11
1512.16:076:10
1612.16:076:10
1712.06:066:09
1812.06:066:08
1912.06:066:08
2012.06:066:07
2112.06:066:06
2212.06:066:06
2312.06:066:05
2412.06:066:05
2512.06:066:04
2612.06:066:03
2712.06:056:03
2811.96:056:02
2911.96:056:01
3011.96:056:01

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.77 kWh/m².

For context, solar energy here swings from a low near 5.54 kWh/m² to a high of 6.18 kWh/m² in February across the year — September's 5.77 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
55.9Bright
65.9Bright
75.9Bright
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
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
Planning a trip in September

Hazard calendar for Chelenko

In seasonPeak

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

Chelenko sees seasonal dust haze (June–July), heaviest in July.

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

Is September a good time to visit Chelenko?

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

5.8
Sightseeing
10th-best month of the year
5.7
Beach & pool
10th-best month of the year

September is a reasonable time to visit Chelenko for sightseeing.

What to pack for Chelenko in September

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

In September, Chelenko sees daytime highs around 26°C and nights near 17°C. Pack rain gear. Worth having: light clothes and sun protection. About 17 days see rain.

rain gearlight clothessun protection

UV index in Chelenko in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Chelenko 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 Chelenko in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Chelenko is worst in June — around 31 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 1931 µg/m³Nov 2325 µg/m³
PM2.5 (µg/m³)Level
Jan26Moderate
Feb29Moderate
Mar29Moderate
Apr26Moderate
May27Moderate
Jun31Moderate
Jul30Moderate
Aug25Moderate
Sep29Moderate
Oct28Moderate
Nov25Moderate
Dec26Moderate
Location & terrain

Where is Chelenko?

Chelenko sits at 9.4°N, 41.6°E, 2,156 m above sea level, in Ethiopia. The nearest listed city is Deder, 16 km away.

Topography around Chelenko

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

Within 3 km, the terrain around Chelenko has large variations in elevation — a maximum elevation change of 796 m around an average of 2,241 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,689 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,679 m.

The land around Chelenko is covered by cropland (48%) and shrubs (41%) within 3 km, shrubs (60%) and cropland (36%) within 16 km, and shrubs (52%) and grassland (21%) within 80 km.

3 km
796 m
16 km
1,689 m
80 km
2,679 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Deder 16 km · Dire Dawa 40 km · ‘Alemaya 49 km · Hīrna 54 km · Harar 62 km · Felana 69 km · Funyan Bīra 83 km · Āsbe Teferī 84 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 Chelenko (9.3975°, 41.561°, elevation 2,156 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).