Aden weather in September

In September, Aden sees average daytime highs of 31°C and overnight lows near 29°C, with 16 mm of rain across 2.9 wet days and about 12.1 hours of daylight. It is the 4th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 83% of the time in September, and the air most often feels miserable.

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 Aden's 2nd-clearest and 11th-windiest month. For the whole year in context, see Aden's year-round climate.

Daytime high
31°
4th warmest
Overnight low
29°
10th coldest
Rainfall
16 mm
2.9 wet days
Daylight
12 h 06 min
5:52 AM – 5:56 PM
Cloud cover
21%
2nd clearest
Wind
14 km/h
11th windiest
Solar energy
5.93 kWh/m²
Travel score
5.9
out of 10

Aden is port city and temporary capital of Yemen.

Density
1,421/km²
people per km²
Founded
~650 BCE

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 31°C through the month.

A typical September day in Aden reaches about 31°C in the afternoon and slips back to 29°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 32°C. Set against its neighbours, September runs on par with August and about 2°C warmer than October.

25°28°30°33°35°151015202530
Avg high (°C)Avg low (°C)
13129
23129
33129
43129
53129
63129
73129
83129
93129
103129
113129
123129
133129
143129
153129
163129
173129
183129
193129
203129
213129
223129
233129
243129
253129
263029
273029
283029
293029
303029

How September really feels in Aden

Once humidity and wind are folded in, September averages 30 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
30
12 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Aden weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 24°92.711.38.6
Feb25° / 24°40.911.68.8
Mar26° / 25°41.111.98.7
Apr28° / 27°7112.38.0
May30° / 29°111.912.66.3
Jun32° / 30°70.512.75.4
Jul32° / 29°100.912.75.1
Aug31° / 29°243.112.45.5
Sep31° / 29°162.912.15.9
Oct29° / 28°162.811.77.0
Nov27° / 26°61.711.48.5
Dec26° / 24°92.611.38.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 83% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 9% of September, with mostly cloudy or overcast conditions the remaining 8%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1937
2937
3937
4928
5928
6928
7928
8928
9928
10928
11928
12928
13928
14928
15928
16928
17928
18928
19928
20928
21919
22919
23919
24919
25919
26919
27919
28919
29919
309010

Chance of precipitation in September

Any precipitation

Aden gets around 16 mm of rain over 2.9 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 10% and peaks near 12% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
110
210
310
410
510
610
710
89
99
109
119
128
138
148
158
168
178
188
198
209
219
229
2310
2410
2511
2611
2711
2812
2912
3012

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the miserable band about 98% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
10100
20100
30100
40100
50100
60100
70100
80100
90100
100100
110100
120100
130100
140100
150100
16199
17199
18199
19298
20298
21298
22397
23496
24595
25694
26793
27892
28991
291090
301288

Wind in September

Winds average 14 km/h in September.

Across September, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
115light breeze
215light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze

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 5:52 AM to 5:52 AM, and sunset from 6:07 PM to 5:46 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:526:07
212.25:526:06
312.25:526:06
412.25:526:05
512.25:526:04
612.25:526:04
712.25:526:03
812.25:526:02
912.25:526:01
1012.15:526:01
1112.15:526:00
1212.15:525:59
1312.15:525:58
1412.15:525:58
1512.15:525:57
1612.15:525:56
1712.15:525:56
1812.05:525:55
1912.05:525:54
2012.05:525:53
2112.05:525:53
2212.05:525:52
2312.05:525:51
2412.05:525:50
2512.05:525:50
2611.95:525:49
2711.95:525:48
2811.95:525:48
2911.95:525:47
3011.95:525:46

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.93 kWh/m².

For context, solar energy here swings from a low near 4.92 kWh/m² to a high of 6.88 kWh/m² in April across the year — September's 5.93 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.0Intense
26.0Intense
36.0Intense
46.0Intense
56.0Intense
66.0Intense
76.0Bright
86.0Bright
96.0Bright
106.0Bright
116.0Bright
126.0Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
Planning a trip in September

Hazard calendar for Aden

In seasonPeak

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

Aden sees seasonal dust haze (May–September), heaviest in July.

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

Is September a good time to visit Aden?

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

5.9
Sightseeing
9th-best month of the year
8.5
Beach & pool
6th-best month of the year

September is a reasonable time to visit Aden for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Aden in September

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

In September, Aden sees daytime highs around 31°C and nights near 29°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

Sea temperature near Aden in September

The nearest coast averages about 30°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 14 km away) is warmest in June at about 30°C and coldest in February near 26°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb26Warm
Mar26Warm
Apr28Tropical
May30Tropical
Jun30Tropical
Jul29Tropical
Aug28Tropical
Sep30Tropical
Oct29Tropical
Nov28Warm
Dec26Warm

UV index in Aden in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Aden peaks around April 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 10 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highVery highApr 12UV 13Dec 10UV 8
UV index (midday)Level
Jan10Very high
Feb11Extreme
Mar12Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul8Very high
Aug10Extreme
Sep10Very high
Oct10Very high
Nov8Very high
Dec8Very high

Air quality in Aden 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 Aden is worst in July — around 50 µg/m³ PM2.5 (poor), about 3.5× the cleanest month (October, 14 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateJul 1548 µg/m³Oct 2115 µg/m³
PM2.5 (µg/m³)Level
Jan25Moderate
Feb26Moderate
Mar25Moderate
Apr21Moderate
May20Moderate
Jun41Poor
Jul50Poor
Aug37Poor
Sep22Moderate
Oct14Moderate
Nov16Moderate
Dec19Moderate
Location & terrain

Where is Aden?

Aden sits at 12.8°N, 45.0°E, 7 m above sea level, in Yemen. The nearest listed city is Laḩij, 35 km away.

TaizAl BaydaDhī as SufālIbbYarīmMocha

Topography around Aden

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

Within 3 km, the terrain around Aden has significant variations in elevation — a maximum elevation change of 511 m around an average of 59 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 512 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,843 m.

The land around Aden is covered by water (45%) and bare terrain (43%) within 3 km, water (76%) within 16 km, and bare terrain (50%) and water (45%) within 80 km.

3 km
511 m
16 km
512 m
80 km
1,843 m
shrubscroplandartificial surfacesbare terrainwater
September weather nearby: Laḩij 35 km · Zinjibār 54 km · Taiz 142 km · Al Bayda 146 km · Dhī as Sufāl 154 km · Ibb 161 km · Yarīm 183 km · Mocha 203 km

Yemen travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type A / D / G
240 V · 50 Hz
Prices
≈ 7% of US
price level, 2013
GDP per capita
$634
2018
Happiness
3.5 / 10
World Happiness, 2025
Homicide rate
5.8
per 100k, 2013
Road deaths
29.4
per 100k/yr, 2019
Income group
Low
World Bank
English
Very low
EF EPI 402
Religion
Muslim 99%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 Aden (12.7796°, 45.0385°, elevation 7 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).