Kachīsī weather in September

In September, Kachīsī sees average daytime highs of 25°C and overnight lows near 15°C, with 150 mm of rain across 27.6 wet days and about 12.1 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 13% 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 Kachīsī's 10th-clearest and 10th-windiest month. For the whole year in context, see Kachīsī's year-round climate.

Daytime high
25°
10th warmest
Overnight low
15°
5th coldest
Rainfall
150 mm
27.6 wet days
Daylight
12 h 06 min
6:21 AM – 6:25 PM
Cloud cover
59%
10th clearest
Wind
3 km/h
10th windiest
Solar energy
5.6 kWh/m²
Travel score
4.2
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 25°C through the month.

A typical September day in Kachīsī reaches about 25°C in the afternoon and slips back to 15°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 27°C. Set against its neighbours, September runs about 1°C warmer than August and about 2°C cooler than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12416
22516
32516
42515
52515
62515
72515
82515
92515
102515
112515
122515
132515
142515
152515
162515
172515
182515
192515
202515
212515
222515
232615
242615
252615
262615
272615
282615
292615
302615

Kachīsī weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 14°51.411.56.8
Feb31° / 16°81.911.75.7
Mar31° / 17°296.911.94.9
Apr31° / 17°449.212.24.6
May30° / 17°731312.44.8
Jun27° / 16°13024.712.54.2
Jul24° / 16°21730.712.53.7
Aug24° / 16°21330.412.33.8
Sep25° / 15°15027.612.14.2
Oct27° / 15°448.211.86.8
Nov28° / 14°163.411.67.1
Dec29° / 14°41.411.47.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 41% of September, with mostly cloudy or overcast conditions the remaining 46%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14456
24456
34456
44456
54555
64555
74654
84654
94753
104753
114951
124951
135050
145149
155248
165347
175446
185545
195743
205842
215842
225941
236040
246238
256337
266436
276535
286634
296733
306733

Chance of precipitation in September

Any precipitation

Kachīsī gets around 150 mm of rain over 27.6 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 90% and peaks near 98% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
198
298
398
497
597
697
797
897
997
1096
1196
1296
1395
1495
1594
1694
1793
1892
1991
2090
2189
2287
2385
2483
2581
2678
2775
2872
2969
3065

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 87% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
10919
20928
30928
40928
50928
60928
70928
80928
90928
100928
110928
121918
131918
141918
152917
162917
173907
184897
195896
206886
218866
229865
2311845
2414824
2516804
2619774
2722753
2825723
2928693
3032653

Wind in September

Winds average 3 km/h in September.

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

0246810151015202530
Wind speed (km/h)Feels
13calm
23calm
33calm
43calm
53calm
63calm
73calm
83calm
93calm
103calm
113calm
123calm
133calm
143calm
153calm
163calm
173calm
183calm
193calm
203calm
213calm
223calm
233calm
243calm
253calm
263calm
273calm
283calm
293calm
303calm

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 6:23 AM to 6:20 AM, and sunset from 6:34 PM to 6:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:236:34
212.26:236:33
312.26:236:33
412.26:236:32
512.26:226:32
612.16:226:31
712.16:226:30
812.16:226:30
912.16:226:29
1012.16:226:28
1112.16:226:28
1212.16:226:27
1312.16:226:26
1412.16:226:26
1512.16:226:25
1612.16:216:25
1712.06:216:24
1812.06:216:23
1912.06:216:23
2012.06:216:22
2112.06:216:21
2212.06:216:21
2312.06:216:20
2412.06:216:19
2512.06:216:19
2612.06:206:18
2712.06:206:18
2811.96:206:17
2911.96:206:16
3011.96:206:16

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.6 kWh/m².

For context, solar energy here swings from a low near 4.6 kWh/m² to a high of 6.38 kWh/m² in March across the year — September's 5.6 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
Planning a trip in September

Hazard calendar for Kachīsī

In seasonPeak

In September, Kachīsī sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Kachīsī's monsoon runs June–September, when most of the year's rain falls.

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

Is September a good time to visit Kachīsī?

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

4.2
Sightseeing
9th-best month of the year
3.9
Beach & pool
10th-best month of the year

September is a reasonable time to visit Kachīsī for sightseeing.

What to pack for Kachīsī in September

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

In September, Kachīsī sees daytime highs around 25°C and nights near 15°C. Pack rain gear. Worth having: light clothes and sun protection. About 28 days see rain.

rain gearlight clothessun protection

UV index in Kachīsī 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 Kachīsī peaks around March 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 21UV 15Nov 23UV 10
UV index (midday)Level
Jan12Extreme
Feb13Extreme
Mar15Extreme
Apr15Extreme
May13Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep13Extreme
Oct13Extreme
Nov10Extreme
Dec10Extreme

Air quality in Kachīsī 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 Kachīsī is worst in January — around 42 µg/m³ PM2.5 (poor), about 1.9× the cleanest month (May, 22 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorJan 1641 µg/m³May 1723 µg/m³
PM2.5 (µg/m³)Level
Jan42Poor
Feb37Poor
Mar32Moderate
Apr28Moderate
May22Moderate
Jun28Moderate
Jul26Moderate
Aug24Moderate
Sep27Moderate
Oct31Moderate
Nov34Moderate
Dec38Poor
Location & terrain

Where is Kachīsī?

Kachīsī sits at 9.6°N, 37.8°E, 2,590 m above sea level, in Ethiopia. The nearest listed city is Dayē, 57 km away.

Topography around Kachīsī

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

Within 3 km, the terrain around Kachīsī has significant variations in elevation — a maximum elevation change of 441 m around an average of 2,481 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,366 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,339 m.

The land around Kachīsī is covered by cropland (67%) and trees (20%) within 3 km, cropland (60%) within 16 km, and cropland (58%) and shrubs (25%) within 80 km.

3 km
441 m
16 km
1,366 m
80 km
2,339 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Dayē 57 km · Gebre Guracha 66 km · Hāgere Hiywet 69 km · Guder 70 km · Gīnch’ī 72 km · Lumamē 73 km · Gēdo 77 km · Shambu 80 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 Kachīsī (9.6°, 37.8333°, elevation 2,590 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).