Mendefera weather in September

In September, Mendefera sees average daytime highs of 25°C and overnight lows near 13°C, with 105 mm of rain across 17.4 wet days and about 12.1 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 23°C in the first days to 26°C by the end. The sky is clear or mostly clear about 54% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 18 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Mendefera's 8th-clearest and 12th-windiest month. For the whole year in context, see Mendefera's year-round climate.

Daytime high
25°
10th warmest
Overnight low
13°
6th coldest
Rainfall
105 mm
17.4 wet days
Daylight
12 h 06 min
6:17 AM – 6:22 PM
Cloud cover
41%
8th clearest
Wind
6 km/h
12th windiest
Solar energy
5.84 kWh/m²
Travel score
6.0
out of 10

Mendefera is city.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 23°C in the first days to 26°C by the end.

A typical September day in Mendefera reaches about 25°C in the afternoon and slips back to 13°C overnight — a 11°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 2°C warmer than August and about 1°C cooler than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12315
22314
32314
42414
52414
62414
72414
82414
92414
102414
112414
122414
132513
142513
152513
162513
172513
182513
192513
202513
212613
222613
232613
242613
252613
262612
272612
282612
292612
302612

Mendefera 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
Jan26° / 11°5111.28.8
Feb28° / 12°40.911.58.0
Mar29° / 14°174.211.96.5
Apr30° / 15°317.312.35.8
May29° / 16°46912.75.9
Jun27° / 16°6011.312.96.1
Jul23° / 15°14224.412.84.6
Aug23° / 15°25829.612.53.7
Sep25° / 13°10517.412.16.0
Oct26° / 13°15311.78.3
Nov26° / 12°81.311.38.8
Dec26° / 12°30.511.19.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 54% 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 25%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14357
24555
34852
45050
55347
65644
75941
86238
96535
106832
117030
127327
137525
147822
158020
168218
178317
188515
198614
208812
218812
228911
238911
248911
259010
269010
279010
289010
298911
308911

Chance of precipitation in September

Any precipitation

Mendefera gets around 105 mm of rain over 17.4 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 58% and peaks near 92% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
192
292
391
490
589
688
787
885
983
1080
1177
1274
1371
1468
1564
1660
1756
1852
1947
2043
2139
2235
2331
2428
2525
2622
2719
2817
2915
3013

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 51% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
134255
244452
364648
474845
594942
6125038
7155035
8185131
9215128
10265024
11304921
12354718
13404515
14454213
15504011
1655369
1760337
1865305
1970264
2074233
2178193
2282162
2384142
2488111
259091
269181
279271
289361
299550
309550

Wind in September

Winds average 6 km/h in September, the calmest month.

Across September, daily wind ranges from about 5 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
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 18 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 24 minutes over September. Sunrise moves from 6:16 AM to 6:18 AM, and sunset from 6:33 PM to 6:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:166:33
212.36:166:32
312.36:166:32
412.36:166:31
512.26:166:30
612.26:166:29
712.26:166:29
812.26:166:28
912.26:166:27
1012.26:166:26
1112.26:166:26
1212.16:166:25
1312.16:166:24
1412.16:166:23
1512.16:176:22
1612.16:176:22
1712.16:176:21
1812.16:176:20
1912.06:176:19
2012.06:176:18
2112.06:176:18
2212.06:176:17
2312.06:176:16
2412.06:176:15
2512.06:176:14
2611.96:176:14
2711.96:176:13
2811.96:176:12
2911.96:176:11
3011.96:186:11

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.84 kWh/m².

For context, solar energy here swings from a low near 4.69 kWh/m² to a high of 6.87 kWh/m² in April across the year — September's 5.84 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.3Bright
45.3Bright
55.3Bright
65.4Bright
75.4Bright
85.5Bright
95.5Bright
105.6Bright
115.7Bright
125.7Bright
135.8Bright
145.8Bright
155.8Bright
165.9Bright
175.9Bright
186.0Bright
196.0Intense
206.0Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
Planning a trip in September

Hazard calendar for Mendefera

In seasonPeak

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

Mendefera's monsoon runs July–August, when most of the year's rain falls.

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

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

Is September a good time to visit Mendefera?

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

6.0
Sightseeing
8th-best month of the year
5.4
Beach & pool
10th-best month of the year

September is a reasonable time to visit Mendefera for sightseeing.

What to pack for Mendefera in September

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

In September, Mendefera sees daytime highs around 25°C and nights near 13°C. Pack rain gear. Worth having: light clothes and sun protection. About 17 days see rain.

rain gearlight clothessun protection

UV index in Mendefera 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 Mendefera peaks around April 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 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 highApr 12UV 15Dec 13UV 9
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar14Extreme
Apr15Extreme
May13Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep13Extreme
Oct12Extreme
Nov10Very high
Dec9Very high

Air quality in Mendefera 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 Mendefera is worst in June — around 27 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 1227 µg/m³Dec 1519 µg/m³
PM2.5 (µg/m³)Level
Jan22Moderate
Feb22Moderate
Mar26Moderate
Apr25Moderate
May26Moderate
Jun27Moderate
Jul24Moderate
Aug22Moderate
Sep24Moderate
Oct24Moderate
Nov21Moderate
Dec19Moderate
Location & terrain

Where is Mendefera?

Mendefera sits at 14.9°N, 38.8°E, 1,977 m above sea level, in Eritrea. The nearest listed city is Asmara, 52 km away.

AsmaraIntich’oAdwaAksumĀdīgratInda SilasēKerenMassawa

Topography around Mendefera

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

Within 3 km, the terrain around Mendefera has only modest variations in elevation — a maximum elevation change of 123 m around an average of 1,972 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 982 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,698 m.

The land around Mendefera is covered by cropland (84%) within 3 km, cropland (43%), grassland (31%) and shrubs (24%) within 16 km, and grassland (46%) and shrubs (31%) within 80 km.

3 km
123 m
16 km
982 m
80 km
2,698 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Asmara 52 km · Intich’o 77 km · Adwa 81 km · Aksum 86 km · Ādīgrat 97 km · Inda Silasē 104 km · Keren 106 km · Massawa 107 km

Eritrea travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / L
230 V · 50 Hz
Prices
≈ 33% of US
price level, 2021
GDP per capita
$689
2011
Homicide rate
15.6
per 100k, 2012
Road deaths
37.9
per 100k/yr, 2019
Income group
Low
World Bank

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 Mendefera (14.8872°, 38.8153°, elevation 1,977 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).