Mena weather in September

In September, Mena sees average daytime highs of 23°C and overnight lows near 15°C, with 319 mm of rain across 24.6 wet days and about 12 hours of daylight. It is the 6th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 8% 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 Mena's 6th-clearest and 6th-windiest month. For the whole year in context, see Mena's year-round climate.

Daytime high
23°
6th warmest
Overnight low
15°
10th coldest
Rainfall
319 mm
24.6 wet days
Daylight
12 hours
6:14 AM – 6:16 PM
Cloud cover
69%
6th clearest
Wind
5 km/h
6th windiest
Solar energy
4.74 kWh/m²
Travel score
4.4
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 23°C through the month.

A typical September day in Mena reaches about 23°C in the afternoon and slips back to 15°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 26°C. Set against its neighbours, September runs on par with August and about 1°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12315
22315
32315
42315
52315
62315
72315
82315
92315
102315
112315
122315
132315
142315
152315
162315
172315
182315
192315
202315
212315
222315
232315
242315
252315
262315
272315
282315
292315
302315

Mena weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 12°404.211.78.0
Feb27° / 12°354.311.87.6
Mar26° / 14°18112.5126.4
Apr24° / 15°62125.812.14.3
May23° / 15°96430.612.33.6
Jun22° / 15°46527.712.43.8
Jul22° / 15°21526.212.34.0
Aug23° / 15°19325.312.24.3
Sep23° / 15°31924.6124.4
Oct22° / 14°85130.411.93.6
Nov23° / 13°36221.811.75.0
Dec24° / 11°828.711.67.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 8% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 21% of September, with mostly cloudy or overcast conditions the remaining 72%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12278
22377
32476
42674
52773
62872
72971
83169
93268
103466
113466
123565
133565
143664
153664
163664
173565
183367
193268
203070
212971
222872
232674
242575
252476
262278
272179
281981
291882
301882

Chance of precipitation in September

Any precipitation

Mena gets around 319 mm of rain over 24.6 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 83% and peaks near 95% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
177
277
376
476
576
675
775
876
976
1076
1177
1277
1378
1479
1580
1681
1782
1883
1984
2085
2186
2288
2389
2490
2591
2692
2793
2894
2994
3095

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 70% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
130682
231672
331672
431672
531672
631672
731672
831672
930682
1030682
1130682
1229692
1329683
1428693
1527703
1626704
1725714
1824715
1923716
2021727
2120728
2219729
23177310
24167311
25147313
26137314
27117316
28107317
2987319
3077320

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 4 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
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
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 6:17 AM to 6:11 AM, and sunset from 6:24 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:176:24
212.16:166:24
312.16:166:23
412.16:166:22
512.16:166:22
612.16:166:21
712.16:166:21
812.16:156:20
912.16:156:20
1012.16:156:19
1112.16:156:19
1212.16:156:18
1312.16:146:18
1412.06:146:17
1512.06:146:17
1612.06:146:16
1712.06:146:15
1812.06:136:15
1912.06:136:14
2012.06:136:14
2112.06:136:13
2212.06:136:13
2312.06:136:12
2412.06:126:12
2512.06:126:11
2612.06:126:11
2712.06:126:10
2812.06:126:09
2912.06:126:09
3012.06:116:08

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.74 kWh/m².

For context, solar energy here swings from a low near 3.67 kWh/m² to a high of 6.44 kWh/m² in February across the year — September's 4.74 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.7Bright
214.7Bright
224.7Bright
234.6Bright
244.6Bright
254.5Bright
264.5Bright
274.5Bright
284.4Bright
294.4Bright
304.3Bright
Planning a trip in September

Hazard calendar for Mena

In seasonPeak

None of Mena's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Mena's rainy season runs April–June, 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 Mena?

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

4.4
Sightseeing
6th-best month of the year
3.4
Beach & pool
7th-best month of the year

September is a reasonable time to visit Mena for sightseeing.

What to pack for Mena in September

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

In September, Mena sees daytime highs around 23°C and nights near 15°C. Pack rain gear. Worth having: light clothes and sun protection. About 25 days see rain.

rain gearlight clothessun protection

UV index in Mena 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 Mena peaks around March 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 21 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 17UV 15Nov 21UV 11
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May13Extreme
Jun11Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec11Extreme

Air quality in Mena 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 Mena is worst in June — around 20 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (January, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 1920 µg/m³Jan 179 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar17Moderate
Apr14Moderate
May15Moderate
Jun20Moderate
Jul18Moderate
Aug14Moderate
Sep14Moderate
Oct15Moderate
Nov13Moderate
Dec10Good
Location & terrain

Where is Mena?

Mena sits at 6.4°N, 39.9°E, 1,262 m above sea level, in Ethiopia. The nearest listed city is Goba, 68 km away.

DodolaĀsasaKibre MengistGhinnirNegēlēShakiso

Topography around Mena

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

Within 3 km, the terrain around Mena has only modest variations in elevation — a maximum elevation change of 163 m around an average of 1,272 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 988 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,893 m.

The land around Mena is covered by cropland (56%) and trees (26%) within 3 km, trees (47%) and cropland (37%) within 16 km, and trees (40%) and shrubs (32%) within 80 km.

3 km
163 m
16 km
988 m
80 km
3,893 m
treesshrubsgrasslandcroplandartificial surfaces
September weather nearby: Goba 68 km · Bale Robe 80 km · Dodola 97 km · Āsasa 105 km · Kibre Mengist 113 km · Ghinnir 124 km · Negēlē 126 km · Shakiso 127 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 Mena (6.4167°, 39.85°, elevation 1,262 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).