Ibb weather in September

In September, Ibb sees average daytime highs of 25°C and overnight lows near 14°C, with 113 mm of rain across 17.7 wet days and about 12.1 hours of daylight. It is the 6th-warmest and 3rd-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 30% of the time in September, and the air most often feels comfortable.

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 Ibb's 8th-clearest and 12th-windiest month. For the whole year in context, see Ibb's year-round climate.

Daytime high
25°
6th warmest
Overnight low
14°
8th coldest
Rainfall
113 mm
17.7 wet days
Daylight
12 h 06 min
5:55 AM – 6:00 PM
Cloud cover
50%
8th clearest
Wind
5 km/h
12th windiest
Solar energy
5.82 kWh/m²
Travel score
5.8
out of 10

Ibb is city in Yemen.

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 Ibb reaches about 25°C in the afternoon and slips back to 14°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 26°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)
12415
22415
32415
42415
52415
62415
72415
82415
92415
102515
112514
122514
132514
142514
152514
162514
172514
182514
192514
202514
212514
222513
232513
242513
252513
262513
272513
282513
292513
302513

Ibb weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan22° / 10°123.111.38.3
Feb24° / 11°132.411.58.6
Mar25° / 12°406.711.97.9
Apr25° / 14°628.512.37.3
May26° / 15°8713.612.66.2
Jun27° / 16°8517.612.85.4
Jul25° / 16°15724.512.74.7
Aug24° / 16°24129.512.54.1
Sep25° / 14°11317.712.15.8
Oct24° / 12°27511.78.3
Nov23° / 10°71.411.48.8
Dec22° / 10°51.411.28.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 39% of September, with mostly cloudy or overcast conditions the remaining 31%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15941
26040
36040
46040
56040
66238
76238
86337
96436
106535
116535
126634
136832
146931
156931
167030
177129
187228
197327
207426
217426
227525
237525
247525
257624
267624
277624
287624
297624
307624

Chance of precipitation in September

Any precipitation

Ibb gets around 113 mm of rain over 17.7 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 59% and peaks near 90% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
190
289
387
486
584
682
781
878
976
1074
1171
1269
1366
1463
1561
1658
1755
1852
1949
2047
2144
2242
2340
2438
2536
2635
2733
2832
2931
3030

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 48% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
167618
277716
387814
4107713
5117811
6137710
716759
818757
921736
1025705
1128684
1232653
1336613
1441572
1545532
1650491
1754451
1858411
1963370
2067330
2171290
2274260
2377230
2480200
2582180
2684160
2786140
2887130
2988120
3088120

Wind in September

Winds average 5 km/h in September, the calmest month.

Across September, daily wind ranges from about 5 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
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

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 5:55 AM to 5:56 AM, and sunset from 6:11 PM to 5:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:556:11
212.35:556:10
312.25:556:10
412.25:556:09
512.25:556:08
612.25:556:08
712.25:556:07
812.25:556:06
912.25:556:05
1012.25:556:05
1112.15:556:04
1212.15:556:03
1312.15:556:02
1412.15:556:01
1512.15:556:01
1612.15:556:00
1712.15:555:59
1812.15:555:58
1912.05:555:58
2012.05:555:57
2112.05:555:56
2212.05:555:55
2312.05:565:55
2412.05:565:54
2512.05:565:53
2611.95:565:52
2711.95:565:51
2811.95:565:51
2911.95:565:50
3011.95:565:49

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.82 kWh/m².

For context, solar energy here swings from a low near 5.44 kWh/m² to a high of 6.74 kWh/m² in April across the year — September's 5.82 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
226.0Bright
236.0Bright
246.0Intense
256.0Intense
266.0Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
Planning a trip in September

Hazard calendar for Ibb

In seasonPeak

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

Ibb's monsoon runs July–September, when most of the year's rain falls.

Ibb 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 Ibb?

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

5.8
Sightseeing
9th-best month of the year
5.1
Beach & pool
10th-best month of the year

September is a reasonable time to visit Ibb for sightseeing.

What to pack for Ibb in September

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

In September, Ibb sees daytime highs around 25°C and nights near 14°C. Pack rain gear. Worth having: light clothes and sun protection. About 18 days see rain.

rain gearlight clothessun protection

UV index in Ibb 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 Ibb peaks around April 11 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 highExtremeVery highApr 11UV 14Dec 15UV 8
UV index (midday)Level
Jan10Extreme
Feb12Extreme
Mar14Extreme
Apr14Extreme
May12Extreme
Jun11Extreme
Jul9Very high
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Ibb 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 Ibb is worst in July — around 54 µg/m³ PM2.5 (poor), about 1.9× the cleanest month (December, 28 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateJul 1254 µg/m³Dec 1028 µg/m³
PM2.5 (µg/m³)Level
Jan30Moderate
Feb36Poor
Mar37Poor
Apr38Poor
May42Poor
Jun52Poor
Jul54Poor
Aug44Poor
Sep44Poor
Oct35Moderate
Nov28Moderate
Dec28Moderate
Location & terrain

Where is Ibb?

Ibb sits at 14.0°N, 44.2°E, 1,931 m above sea level, in Yemen. The nearest listed city is Dhī as Sufāl, 16 km away.

ZabīdBayt al FaqīhMochaLaḩij

Topography around Ibb

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

Within 3 km, the terrain around Ibb has large variations in elevation — a maximum elevation change of 1,132 m around an average of 2,056 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,895 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,089 m.

The land around Ibb is covered by cropland (44%) and artificial surfaces (33%) within 3 km, cropland (55%) and shrubs (28%) within 16 km, and shrubs (45%), grassland (22%) and cropland (20%) within 80 km.

3 km
1,132 m
16 km
1,895 m
80 km
3,089 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Dhī as Sufāl 16 km · Yarīm 42 km · Taiz 46 km · Dhamār 68 km · Zabīd 97 km · Bayt al Faqīh 111 km · Mocha 124 km · Laḩij 126 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 Ibb (13.9667°, 44.1833°, elevation 1,931 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).