Nejo weather in September

In September, Nejo sees average daytime highs of 24°C and overnight lows near 16°C, with 492 mm of rain across 29.6 wet days and about 12.1 hours of daylight. It is the 10th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°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 Nejo's 9th-clearest and 12th-windiest month. For the whole year in context, see Nejo's year-round climate.

Daytime high
24°
10th warmest
Overnight low
16°
7th coldest
Rainfall
492 mm
29.6 wet days
Daylight
12 h 06 min
6:31 AM – 6:34 PM
Cloud cover
73%
9th clearest
Wind
4 km/h
12th windiest
Solar energy
5.75 kWh/m²
Travel score
3.7
out of 10

Nejo 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 24°C through the month.

A typical September day in Nejo reaches about 24°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 26°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12415
22415
32415
42415
52415
62415
72415
82415
92416
102416
112416
122416
132416
142416
152416
162416
172416
182416
192516
202516
212516
222516
232516
242516
252516
262516
272516
282516
292516
302516

Nejo weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 15°30.811.56.9
Feb31° / 17°51.111.75.8
Mar31° / 18°314.711.95.1
Apr30° / 18°11111.212.24.8
May27° / 17°36325.412.44.2
Jun25° / 16°51829.812.53.6
Jul23° / 15°47630.612.53.6
Aug23° / 15°48130.812.33.5
Sep24° / 16°49229.612.13.7
Oct25° / 15°30425.311.84.5
Nov26° / 15°497.111.67.2
Dec28° / 15°4111.58.0

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 12% of September, with mostly cloudy or overcast conditions the remaining 86%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1892
2991
3991
4991
51090
61090
71090
81090
91189
101189
111189
121189
131189
141189
151387
161387
171387
181387
191387
201585
211585
221684
231783
241882
251981
261981
272179
282278
292278
302476

Chance of precipitation in September

Any precipitation

Nejo gets around 492 mm of rain over 29.6 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 98% and peaks near 100% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
1599
1699
1799
1899
1998
2098
2198
2298
2397
2497
2596
2696
2795
2895
2995
3094

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 96% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)
1793
2694
3694
4595
5595
6496
7496
8397
9397
10397
11298
12298
13298
14298
15298
16298
17298
18298
19298
20397
21397
22397
23496
24496
25496
26595
27595
28595
29694
30694

Wind in September

Winds average 4 km/h in September, the calmest month.

Across September, daily wind ranges from about 4 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
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm

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 6:32 AM to 6:30 AM, and sunset from 6:43 PM to 6:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:326:43
212.26:326:43
312.26:326:42
412.26:326:41
512.16:326:41
612.16:326:40
712.16:326:40
812.16:326:39
912.16:316:38
1012.16:316:38
1112.16:316:37
1212.16:316:36
1312.16:316:36
1412.16:316:35
1512.16:316:35
1612.16:316:34
1712.06:316:33
1812.06:316:33
1912.06:306:32
2012.06:306:31
2112.06:306:31
2212.06:306:30
2312.06:306:29
2412.06:306:29
2512.06:306:28
2612.06:306:28
2712.06:306:27
2811.96:306:26
2911.96:306:26
3011.96:306:25

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.75 kWh/m².

For context, solar energy here swings from a low near 4.67 kWh/m² to a high of 6.65 kWh/m² in March across the year — September's 5.75 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.6Bright
65.6Bright
75.6Bright
85.6Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
Planning a trip in September

Hazard calendar for Nejo

In seasonPeak

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

Nejo's monsoon runs May–October, 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 Nejo?

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

3.7
Sightseeing
9th-best month of the year
3.2
Beach & pool
9th-best month of the year

September is a weaker month for outdoor sightseeing in Nejo.

What to pack for Nejo in September

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

In September, Nejo sees daytime highs around 24°C and nights near 16°C. Pack rain gear. Worth having: light clothes and sun protection. About 30 days see rain.

rain gearlight clothessun protection

UV index in Nejo 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 Nejo peaks around March 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMar 21UV 15Dec 11UV 10
UV index (midday)Level
Jan12Extreme
Feb12Extreme
Mar15Extreme
Apr14Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep12Extreme
Oct12Extreme
Nov10Very high
Dec10Very high

Air quality in Nejo 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 Nejo is worst in February — around 54 µg/m³ PM2.5 (poor), about 3.8× the cleanest month (May, 14 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateFeb 1653 µg/m³May 2015 µg/m³
PM2.5 (µg/m³)Level
Jan41Poor
Feb54Poor
Mar44Poor
Apr28Moderate
May14Moderate
Jun20Moderate
Jul20Moderate
Aug16Moderate
Sep15Moderate
Oct18Moderate
Nov23Moderate
Dec25Moderate
Location & terrain

Where is Nejo?

Nejo sits at 9.5°N, 35.5°E, 1,888 m above sea level, in Ethiopia. The nearest listed city is Gimbi, 52 km away.

ĀsosaNek’emtēGutinĀyanaDembī Dolo

Topography around Nejo

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

Within 3 km, the terrain around Nejo has significant variations in elevation — a maximum elevation change of 259 m around an average of 1,857 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 759 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,907 m.

The land around Nejo is covered by trees (47%), cropland (22%) and grassland (20%) within 3 km, cropland (38%), trees (35%) and grassland (24%) within 16 km, and trees (49%) and cropland (27%) within 80 km.

3 km
259 m
16 km
759 m
80 km
1,907 m
treesshrubsgrasslandcroplandartificial surfaces
September weather nearby: Gimbi 52 km · Mendī 55 km · Bambesi 89 km · Āsosa 123 km · Nek’emtē 124 km · Gutin 125 km · Āyana 130 km · Dembī Dolo 132 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 Nejo (9.5°, 35.5°, elevation 1,888 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).