Gelemso weather in September

In September, Gelemso sees average daytime highs of 25°C and overnight lows near 16°C, with 81 mm of rain across 13.2 wet days and about 12.1 hours of daylight. It is the 8th-warmest and 7th-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 46% 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 Gelemso's 4th-clearest and 8th-windiest month. For the whole year in context, see Gelemso's year-round climate.

Daytime high
25°
8th warmest
Overnight low
16°
8th coldest
Rainfall
81 mm
13.2 wet days
Daylight
12 hours
6:11 AM – 6:14 PM
Cloud cover
45%
4th clearest
Wind
7 km/h
8th windiest
Solar energy
5.99 kWh/m²
Travel score
6.5
out of 10

Gelemso is Oromia,GalamsoHabro.

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 25°C through the month.

A typical September day in Gelemso reaches about 25°C in the afternoon and slips back to 16°C overnight — a 9°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 on par with August and on par with October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12515
22515
32515
42515
52515
62516
72516
82516
92516
102516
112516
122516
132516
142516
152516
162516
172516
182516
192516
202516
212516
222516
232516
242516
252516
262516
272516
282516
292516
302516

Gelemso weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 14°173.611.58.1
Feb27° / 15°253.411.77.6
Mar28° / 16°859.111.96.7
Apr26° / 16°13017.812.25.4
May26° / 16°12519.412.45.4
Jun26° / 16°6413.312.56.2
Jul25° / 15°15522.212.55.2
Aug24° / 15°17022.812.35.2
Sep25° / 16°8113.212.16.5
Oct25° / 15°9812.611.86.6
Nov25° / 14°466.711.67.6
Dec25° / 13°223.711.58.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 33% of September, with mostly cloudy or overcast conditions the remaining 21%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18416
28515
38515
48515
58515
68515
78515
88416
98416
108416
118317
128317
138218
148218
158218
168119
178119
188020
197921
207921
217822
227723
237525
247426
257228
267129
276931
286832
296733
306535

Chance of precipitation in September

Any precipitation

Gelemso gets around 81 mm of rain over 13.2 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 46% and peaks near 61% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
161
260
358
456
554
653
751
850
948
1047
1146
1245
1344
1444
1543
1642
1742
1841
1941
2040
2140
2240
2340
2440
2540
2641
2741
2841
2942
3043

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 53% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
1205426
2225226
3235225
4245125
5255124
6265024
7265123
8275023
9285022
10285022
11285022
12295021
13295021
14295120
15295120
16295219
17295318
18285418
19285517
20285616
21275716
22275815
23275815
24275815
25285715
26285715
27285715
28285616
29295516
30295516

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

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 6:13 AM to 6:09 AM, and sunset from 6:23 PM to 6:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:136:23
212.26:126:22
312.26:126:22
412.16:126:21
512.16:126:20
612.16:126:20
712.16:126:19
812.16:126:19
912.16:126:18
1012.16:126:17
1112.16:116:17
1212.16:116:16
1312.16:116:16
1412.16:116:15
1512.16:116:14
1612.06:116:14
1712.06:116:13
1812.06:116:12
1912.06:106:12
2012.06:106:11
2112.06:106:11
2212.06:106:10
2312.06:106:09
2412.06:106:09
2512.06:106:08
2612.06:106:08
2712.06:106:07
2811.96:096:06
2911.96:096:06
3011.96:096:05

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.99 kWh/m².

For context, solar energy here swings from a low near 5.52 kWh/m² to a high of 6.3 kWh/m² in March across the year — September's 5.99 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.1Intense
126.1Intense
136.1Intense
146.0Intense
156.0Intense
166.0Intense
176.0Bright
186.0Bright
195.9Bright
205.9Bright
215.9Bright
225.9Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.7Bright
285.7Bright
295.7Bright
305.6Bright
Planning a trip in September

Hazard calendar for Gelemso

In seasonPeak

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

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

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

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

Is September a good time to visit Gelemso?

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

6.5
Sightseeing
7th-best month of the year
5.7
Beach & pool
8th-best month of the year

September is a reasonable time to visit Gelemso for sightseeing.

What to pack for Gelemso in September

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

In September, Gelemso sees daytime highs around 25°C and nights near 16°C. Pack rain gear. Worth having: light clothes and sun protection. About 13 days see rain.

rain gearlight clothessun protection

UV index in Gelemso 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 Gelemso peaks around March 18 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 10 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 16Dec 10UV 11
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar16Extreme
Apr15Extreme
May13Extreme
Jun12Extreme
Jul11Extreme
Aug14Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec11Extreme

Air quality in Gelemso 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 Gelemso is worst in June — around 30 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 2230 µg/m³Apr 2022 µg/m³
PM2.5 (µg/m³)Level
Jan23Moderate
Feb24Moderate
Mar25Moderate
Apr22Moderate
May23Moderate
Jun30Moderate
Jul29Moderate
Aug24Moderate
Sep25Moderate
Oct26Moderate
Nov25Moderate
Dec24Moderate
Location & terrain

Where is Gelemso?

Gelemso sits at 8.8°N, 40.5°E, 1,795 m above sea level, in Ethiopia. The nearest listed city is Bedēsa, 31 km away.

DederWelench’ītī

Topography around Gelemso

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

Within 3 km, the terrain around Gelemso has significant variations in elevation — a maximum elevation change of 428 m around an average of 1,826 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,330 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,481 m.

The land around Gelemso is covered by cropland (51%) and shrubs (35%) within 3 km, shrubs (55%) and cropland (40%) within 16 km, and shrubs (58%) and cropland (23%) within 80 km.

3 km
428 m
16 km
1,330 m
80 km
2,481 m
treesshrubsgrasslandcroplandartificial surfaceswetland
September weather nearby: Bedēsa 31 km · Āwash 43 km · Āsbe Teferī 49 km · Mī’ēso 53 km · Metahāra 67 km · Hīrna 78 km · Deder 116 km · Welench’ītī 120 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 Gelemso (8.8167°, 40.5167°, elevation 1,795 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).