Āsosa weather in September

In September, Āsosa sees average daytime highs of 27°C and overnight lows near 18°C, with 243 mm of rain across 28.9 wet days and about 12.1 hours of daylight. It is the 9th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 2% of the time in September, and the air most often feels humid.

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 Āsosa's 9th-clearest and 10th-windiest month. For the whole year in context, see Āsosa's year-round climate.

Daytime high
27°
9th warmest
Overnight low
18°
7th coldest
Rainfall
243 mm
28.9 wet days
Daylight
12 h 06 min
6:35 AM – 6:38 PM
Cloud cover
69%
9th clearest
Wind
5 km/h
10th windiest
Solar energy
5.29 kWh/m²
Travel score
3.7
out of 10

Āsosa is town in western 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 27°C through the month.

A typical September day in Āsosa reaches about 27°C in the afternoon and slips back to 18°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 about 1°C warmer than August and on par with October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12618
22618
32618
42618
52618
62618
72618
82618
92618
102618
112618
122618
132618
142718
152718
162718
172718
182718
192718
202718
212718
222718
232718
242718
252718
262718
272718
282718
292718
302718

How September really feels in Āsosa

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Āsosa weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 17°10.211.55.7
Feb33° / 18°10.511.74.6
Mar33° / 20°153.211.94.1
Apr32° / 20°891312.23.9
May29° / 20°22226.212.53.6
Jun27° / 18°2202812.63.8
Jul25° / 18°19227.112.54.1
Aug25° / 18°20627.912.33.9
Sep27° / 18°24328.912.13.7
Oct27° / 18°24628.411.83.9
Nov28° / 17°609.511.56.1
Dec30° / 17°20.611.46.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 29% of September, with mostly cloudy or overcast conditions the remaining 68%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12773
22773
32872
42872
52872
62872
72872
82872
92971
102971
113070
123070
133169
143169
153367
163367
173367
183466
193466
203565
213565
223466
233565
243565
253565
263664
273565
283565
293466
303565

Chance of precipitation in September

Any precipitation

Āsosa gets around 243 mm of rain over 28.9 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 96% and peaks near 97% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
193
294
394
495
595
695
796
896
996
1097
1197
1297
1397
1497
1596
1696
1796
1896
1996
2096
2196
2296
2396
2496
2596
2696
2796
2896
2996
3097

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 78% of days. Sticky, muggy-or-worse air turns up on roughly 22% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)
18614
28515
38515
48515
58416
68416
78317
88317
98218
108119
118020
128020
137921
147822
157723
167723
177624
187525
197525
207426
217426
227426
237327
247327
257327
267327
277327
287327
297228
307228

Wind in September

Winds average 5 km/h in September.

Across September, 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.

0246810151015202530
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

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 6:36 AM to 6:34 AM, and sunset from 6:47 PM to 6:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:366:47
212.26:366:47
312.26:366:46
412.26:366:46
512.26:356:45
612.16:356:44
712.16:356:44
812.16:356:43
912.16:356:42
1012.16:356:42
1112.16:356:41
1212.16:356:40
1312.16:356:40
1412.16:356:39
1512.16:356:38
1612.16:356:38
1712.06:346:37
1812.06:346:37
1912.06:346:36
2012.06:346:35
2112.06:346:35
2212.06:346:34
2312.06:346:33
2412.06:346:33
2512.06:346:32
2612.06:346:31
2711.96:346:31
2811.96:346:30
2911.96:346:29
3011.96:346:29

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.29 kWh/m².

For context, solar energy here swings from a low near 4.52 kWh/m² to a high of 6.58 kWh/m² in March across the year — September's 5.29 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
Planning a trip in September

Hazard calendar for Āsosa

In seasonPeak

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

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

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

Is September a good time to visit Āsosa?

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

3.7
Sightseeing
11th-best month of the year
3.6
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Āsosa.

What to pack for Āsosa in September

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

In September, Āsosa sees daytime highs around 27°C and nights near 18°C. Pack rain gear. Worth having: light clothes and sun protection. About 29 days see rain.

rain gearlight clothessun protection

UV index in Āsosa in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Āsosa peaks around March 19 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 10 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMar 19UV 13Dec 10UV 9
UV index (midday)Level
Jan11Extreme
Feb12Extreme
Mar13Extreme
Apr13Extreme
May11Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct12Extreme
Nov9Very high
Dec9Very high

Air quality in Āsosa 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 Āsosa is worst in January — around 54 µg/m³ PM2.5 (poor), about 4.0× the cleanest month (May, 14 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateJan 2254 µg/m³May 2014 µg/m³
PM2.5 (µg/m³)Level
Jan54Poor
Feb51Poor
Mar37Poor
Apr26Moderate
May14Moderate
Jun18Moderate
Jul19Moderate
Aug15Moderate
Sep15Moderate
Oct19Moderate
Nov30Moderate
Dec32Moderate
Location & terrain

Where is Āsosa?

Āsosa sits at 10.1°N, 34.5°E, 1,530 m above sea level, in Ethiopia. The nearest listed city is Bambesi, 41 km away.

NejoDembī DoloGimbiAd-DamazinDibateEr Roseires

Topography around Āsosa

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

Within 3 km, the terrain around Āsosa has significant variations in elevation — a maximum elevation change of 450 m around an average of 1,485 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 985 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,755 m.

The land around Āsosa is covered by trees (34%) and grassland (26%) within 3 km, trees (39%), grassland (30%) and cropland (21%) within 16 km, and trees (39%) and grassland (36%) within 80 km.

3 km
450 m
16 km
985 m
80 km
1,755 m
treesshrubsgrasslandcroplandartificial surfaces
September weather nearby: Bambesi 41 km · Mendī 69 km · Nejo 123 km · Dembī Dolo 173 km · Gimbi 174 km · Ad-Damazin 192 km · Dibate 195 km · Er Roseires 201 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 Āsosa (10.0667°, 34.5333°, elevation 1,530 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).