Ch’ench’a weather in September

In September, Ch’ench’a sees average daytime highs of 22°C and overnight lows near 15°C, with 489 mm of rain across 28.6 wet days and about 12 hours of daylight. It is the 9th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 22°C through the month. The sky is clear or mostly clear about 5% of the time in September, and the air most often feels comfortable.

Daylight stretches from about 12 h 06 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Ch’ench’a's 6th-clearest and 12th-windiest month. For the whole year in context, see Ch’ench’a's year-round climate.

Daytime high
22°
9th warmest
Overnight low
15°
8th coldest
Rainfall
489 mm
28.6 wet days
Daylight
12 hours
6:23 AM – 6:25 PM
Cloud cover
71%
6th clearest
Wind
3 km/h
12th windiest
Solar energy
5.33 kWh/m²
Travel score
3.8
out of 10

Ch’ench’a is place in Ethiopia.

Density
5,647/km²
people per km²

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 22°C through the month.

A typical September day in Ch’ench’a reaches about 22°C in the afternoon and slips back to 15°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 25°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
12215
22215
32215
42215
52215
62215
72215
82215
92215
102215
112215
122215
132215
142315
152315
162315
172315
182315
192315
202315
212315
222315
232315
242315
252315
262315
272315
282315
292315
302315

Ch’ench’a weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 14°14912.611.76.6
Feb26° / 15°14412.111.86.2
Mar26° / 15°34521.5125.0
Apr25° / 15°63327.512.13.9
May23° / 15°67130.212.33.6
Jun22° / 15°27427.712.43.8
Jul21° / 14°23227.712.33.8
Aug21° / 15°26527.112.23.9
Sep22° / 15°48928.6123.8
Oct23° / 14°69929.411.93.8
Nov24° / 14°30819.111.75.4
Dec25° / 14°15612.411.66.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 80%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11783
21783
31882
41981
52080
62179
72179
82377
92476
102476
112575
122575
132575
142575
152476
162476
172377
182278
192179
202179
211981
221882
231882
241684
251684
261585
271585
281387
291387
301387

Chance of precipitation in September

Any precipitation

Ch’ench’a gets around 489 mm of rain over 28.6 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 95% and peaks near 98% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
190
290
390
490
590
691
791
892
992
1092
1193
1293
1394
1494
1595
1695
1796
1896
1997
2097
2197
2298
2398
2498
2598
2698
2798
2898
2998
3098

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 77% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
121745
221745
321745
421745
520755
620746
719756
819756
918766
1017767
1117767
1216777
1316768
1415778
1514779
1614779
1713789
18127810
19117910
20117811
21107812
2297912
2397813
2487913
2577914
2677914
2767915
2867915
2967816
3057817

Wind in September

Winds average 3 km/h in September, the calmest month.

Across September, daily wind ranges from about 3 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
143calm
153calm
163calm
173calm
183calm
193calm
203calm
213calm
223calm
233calm
243calm
253calm
263calm
273calm
284calm
294calm
304calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 06 min at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over September. Sunrise moves from 6:26 AM to 6:20 AM, and sunset from 6:33 PM to 6:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:266:33
212.16:266:33
312.16:256:32
412.16:256:32
512.16:256:31
612.16:256:30
712.16:256:30
812.16:256:29
912.16:246:29
1012.16:246:28
1112.16:246:28
1212.16:246:27
1312.16:246:27
1412.06:236:26
1512.06:236:26
1612.06:236:25
1712.06:236:25
1812.06:236:24
1912.06:226:23
2012.06:226:23
2112.06:226:22
2212.06:226:22
2312.06:226:21
2412.06:226:21
2512.06:216:20
2612.06:216:20
2712.06:216:19
2812.06:216:19
2912.06:216:18
3012.06:206:18

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.33 kWh/m².

For context, solar energy here swings from a low near 4.21 kWh/m² to a high of 6.13 kWh/m² in February across the year — September's 5.33 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.1Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.4Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
Planning a trip in September

Is September a good time to visit Ch’ench’a?

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

3.8
Sightseeing
8th-best month of the year
2.8
Beach & pool
9th-best month of the year

September is a weaker month for outdoor sightseeing in Ch’ench’a.

What to pack for Ch’ench’a in September

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

In September, Ch’ench’a sees daytime highs around 22°C and nights near 15°C. Pack rain gear. Worth having: light clothes and sun protection. About 29 days see rain.

rain gearlight clothessun protection

UV index in Ch’ench’a 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 Ch’ench’a peaks around March 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 22 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 15UV 15Nov 22UV 11
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar16Extreme
Apr14Extreme
May13Extreme
Jun11Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec11Extreme

Air quality in Ch’ench’a 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 Ch’ench’a is worst in December — around 37 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorDec 2237 µg/m³Apr 2324 µg/m³
PM2.5 (µg/m³)Level
Jan36Poor
Feb35Moderate
Mar29Moderate
Apr24Moderate
May24Moderate
Jun32Moderate
Jul30Moderate
Aug25Moderate
Sep25Moderate
Oct25Moderate
Nov32Moderate
Dec37Poor
Location & terrain

Where is Ch’ench’a?

Ch’ench’a sits at 6.3°N, 37.6°E, 2,739 m above sea level, in Ethiopia. The nearest listed city is Arba Minch, 24 km away.

Topography around Ch’ench’a

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ch’ench’a.

Within 3 km, the terrain around Ch’ench’a has significant variations in elevation — a maximum elevation change of 490 m around an average of 2,700 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,309 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,935 m.

The land around Ch’ench’a is covered by cropland (34%) and trees (27%) within 3 km, shrubs (30%), trees (26%) and grassland (23%) within 16 km, and shrubs (43%) within 80 km.

3 km
490 m
16 km
2,309 m
80 km
2,935 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Arba Minch 24 km · Gasuba 52 km · Kele 55 km · Tebela 55 km · Gīdolē 70 km · Yirga Ch’efē 71 km · Wolaita Sodo 71 km · Bale Hawassa 75 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 Ch’ench’a (6.25°, 37.5667°, elevation 2,739 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).