Yanbu weather in September

In September, Yanbu sees average daytime highs of 32°C and overnight lows near 29°C, with 0 mm of rain across 0 wet days and about 12.1 hours of daylight. It is the 2nd-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 98% of the time in September, and the air most often feels miserable.

Daylight stretches from about 12 h 30 min at the start of September to 11 h 48 min by month's end. Set against the rest of the year, September is Yanbu's 2nd-clearest and 6th-windiest month. For the whole year in context, see Yanbu's year-round climate.

Daytime high
32°
2nd warmest
Overnight low
29°
11th coldest
Rainfall
0 mm
0 wet days
Daylight
12 h 06 min
6:18 AM – 6:26 PM
Cloud cover
6%
2nd clearest
Wind
18 km/h
6th windiest
Solar energy
6.42 kWh/m²
Travel score
5.6
out of 10
Air quality
Severe
PM2.5 75 µg/m³ · 2017

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 32°C through the month.

A typical September day in Yanbu reaches about 32°C in the afternoon and slips back to 29°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 34°C. Set against its neighbours, September runs on par with August and about 1°C warmer than October.

25°28°30°33°35°151015202530
Avg high (°C)Avg low (°C)
13230
23230
33230
43230
53230
63230
73229
83229
93229
103229
113229
123229
133229
143229
153229
163229
173229
183229
193229
203229
213229
223229
233229
243229
253229
263229
273229
283229
293229
303229

How September really feels in Yanbu

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
11 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.

Yanbu weather by month

How September compares with the rest of the year at a glance. September is the 2nd-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 21°81.410.79.1
Feb24° / 21°30.611.29.3
Mar25° / 22°10.511.89.2
Apr27° / 24°10.112.58.9
May29° / 27°0013.17.2
Jun31° / 28°0013.56.1
Jul32° / 29°0013.35.6
Aug32° / 30°0012.85.2
Sep32° / 29°0012.15.6
Oct31° / 28°20.311.46.3
Nov28° / 25°181.710.87.8
Dec26° / 22°111.310.58.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 98% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 1% of September, with mostly cloudy or overcast conditions the remaining 1%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1991
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
20991
21991
22982
23982
24982
25982
26982
27982
28982
29973
30973

Chance of precipitation in September

Any precipitation

Yanbu gets around 0 mm of rain over 0 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 0% and peaks near 0% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300

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 66% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
102773
202872
302872
402971
502971
603070
703169
803268
903268
1003367
1103466
1203466
1303565
1403565
1503664
1603664
1703664
1803664
1903763
2003763
2113762
2213762
2313762
2413762
2513663
2613663
2723662
2823563
2923563
3023563

Wind in September

Winds average 18 km/h in September.

Across September, daily wind ranges from about 16 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
119light breeze
219light breeze
319light breeze
419light breeze
519light breeze
619light breeze
719light breeze
819light breeze
919light breeze
1019light breeze
1119light breeze
1219light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2816light breeze
2916light breeze
3016light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 30 min at the start of September to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over September. Sunrise moves from 6:13 AM to 6:23 AM, and sunset from 6:42 PM to 6:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.56:136:42
212.56:136:41
312.46:136:40
412.46:146:39
512.46:146:38
612.46:146:37
712.46:156:36
812.36:156:35
912.36:166:34
1012.36:166:33
1112.36:166:32
1212.26:176:31
1312.26:176:29
1412.26:176:28
1512.26:186:27
1612.16:186:26
1712.16:186:25
1812.16:196:24
1912.16:196:23
2012.06:196:22
2112.06:206:21
2212.06:206:20
2312.06:206:19
2411.96:216:18
2511.96:216:16
2611.96:216:15
2711.96:226:14
2811.86:226:13
2911.86:236:12
3011.86:236:11

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.42 kWh/m².

For context, solar energy here swings from a low near 4.28 kWh/m² to a high of 7.56 kWh/m² in May across the year — September's 6.42 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.7Intense
26.7Intense
36.7Intense
46.7Intense
56.7Intense
66.6Intense
76.6Intense
86.6Intense
96.6Intense
106.5Intense
116.5Intense
126.5Intense
136.5Intense
146.5Intense
156.4Intense
166.4Intense
176.4Intense
186.4Intense
196.3Intense
206.3Intense
216.3Intense
226.3Intense
236.3Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.1Intense
296.1Intense
306.1Intense
Planning a trip in September

Hazard calendar for Yanbu

In seasonPeak

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

Yanbu sees seasonal dust haze (April–September), heaviest in June.

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

Is September a good time to visit Yanbu?

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

5.6
Sightseeing
10th-best month of the year
8.8
Beach & pool
6th-best month of the year

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

What to pack for Yanbu in September

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

In September, Yanbu sees daytime highs around 32°C and nights near 29°C. Pack light clothes and sun protection.

light clothessun protection

Sea temperature near Yanbu 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 19 km away) is warmest in August at about 30°C and coldest in February near 24°C.

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

22°24°26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan25Warm
Feb24Warm
Mar25Warm
Apr26Warm
May27Warm
Jun28Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct30Tropical
Nov29Tropical
Dec27Warm

UV index in Yanbu in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Yanbu peaks around May 23 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighModerateMay 23UV 11Dec 17UV 4
UV index (midday)Level
Jan6High
Feb8Very high
Mar10Very high
Apr10Very high
May12Extreme
Jun11Extreme
Jul10Very high
Aug10Very high
Sep9Very high
Oct8Very high
Nov6High
Dec4Moderate

Air quality in Yanbu 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 Yanbu is worst in April — around 99 µg/m³ PM2.5 (unhealthy), about 1.7× the cleanest month (July, 58 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Yanbu's WHO annual average of 75 µg/m³.

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyApr 1199 µg/m³Nov 1059 µg/m³
PM2.5 (µg/m³)Level
Jan83Unhealthy
Feb78Unhealthy
Mar96Unhealthy
Apr99Unhealthy
May83Unhealthy
Jun73Unhealthy
Jul58Unhealthy
Aug66Unhealthy
Sep68Unhealthy
Oct61Unhealthy
Nov58Unhealthy
Dec77Unhealthy
Location & terrain

Where is Yanbu?

Yanbu sits at 24.1°N, 38.1°E, 6 m above sea level, in Saudi Arabia. The nearest listed city is Badr Ḩunayn, 82 km away.

UmlujSulţānahMedinaRābighThuwalKhulayşHala'ib

Topography around Yanbu

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

Within 3 km, the terrain around Yanbu has only modest variations in elevation — a maximum elevation change of 14 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 68 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,249 m.

The land around Yanbu is covered by artificial surfaces (54%) and bare terrain (35%) within 3 km, bare terrain (50%) and water (43%) within 16 km, and bare terrain (57%) and water (41%) within 80 km.

3 km
14 m
16 km
68 m
80 km
2,249 m
grasslandartificial surfacesbare terrainwater
September weather nearby: Badr Ḩunayn 82 km · Umluj 131 km · Sulţānah 161 km · Medina 163 km · Rābigh 175 km · Thuwal 228 km · Khulayş 251 km · Hala'ib 253 km

Saudi Arabia travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type G
230 V · 60 Hz
Prices
≈ 47% of US
price level, 2025
GDP per capita
$34,537
2025
Happiness
6.8 / 10
World Happiness, 2025
Homicide rate
0.9
per 100k, 2019
Road deaths
35.9
per 100k/yr, 2019
Income group
High
World Bank
English
Very low
EF EPI 404

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 Yanbu (24.0895°, 38.0618°, elevation 6 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).