Dhahran weather in September

In September, Dhahran sees average daytime highs of 40°C and overnight lows near 27°C, with 0 mm of rain across 0 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 41°C in the first days to 39°C by the end. The sky is clear or mostly clear about 99% of the time in September, and the air most often feels muggy.

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 Dhahran's 1st-clearest and 11th-windiest month. For the whole year in context, see Dhahran's year-round climate.

Daytime high
40°
4th warmest
Overnight low
27°
9th coldest
Rainfall
0 mm
0 wet days
Daylight
12 h 12 min
5:29 AM – 5:38 PM
Cloud cover
2%
1st clearest
Wind
13 km/h
11th windiest
Solar energy
6.53 kWh/m²
Travel score
0.3
out of 10

Dhahran is city in Saudi Arabia.

Density
995/km²
people per km²

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 41°C in the first days to 39°C by the end.

A typical September day in Dhahran reaches about 40°C in the afternoon and slips back to 27°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 38°C and 42°C. Set against its neighbours, September runs about 2°C cooler than August and about 5°C warmer than October.

20°25°30°35°40°45°151015202530
Avg high (°C)Avg low (°C)
14229
24229
34129
44129
54128
64128
74128
84128
94128
104128
114128
124128
134027
144027
154027
164027
174027
184027
194027
204027
214026
223926
233926
243926
253926
263926
273926
283926
293825
303825

How September really feels in Dhahran

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
30 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.

Dhahran weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan21° / 12°193.310.58.0
Feb23° / 13°122.311.18.7
Mar27° / 16°142.111.88.1
Apr33° / 21°5112.64.8
May39° / 26°10.113.31.1
Jun42° / 29°0013.60.0
Jul43° / 31°0013.50.0
Aug43° / 30°0012.90.0
Sep40° / 27°0012.20.3
Oct36° / 23°00.211.43.1
Nov28° / 18°152.110.77.3
Dec23° / 14°192.910.48.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 99% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 1% of September, with mostly cloudy or overcast conditions the remaining 0%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
29991
30991

Chance of precipitation in September

Any precipitation

Dhahran 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 muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the muggy band about 22% of days. Sticky, muggy-or-worse air turns up on roughly 56% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
161615201628
261616201626
371616201625
471617201624
571618201623
671618211621
781619211620
881620211619
981621211618
1081621211617
1181622211716
1281622211716
1381622211715
1481523221814
1581523221814
1681523221913
1781523221912
1881423222012
1981423222012
2081424232111
2181423232111
2281423232110
2381423242110
2481423242210
258142324229
268142324229
278142324228
289152324218
299152324217
3010162325217

Wind in September

Winds average 13 km/h in September.

Across September, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light 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 5:23 AM to 5:35 AM, and sunset from 5:56 PM to 5:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:235:56
212.55:235:54
312.55:245:53
412.55:245:52
512.45:255:51
612.45:255:50
712.45:255:49
812.45:265:48
912.35:265:47
1012.35:275:45
1112.35:275:44
1212.35:285:43
1312.25:285:42
1412.25:285:41
1512.25:295:40
1612.25:295:38
1712.15:305:37
1812.15:305:36
1912.15:315:35
2012.05:315:34
2112.05:315:33
2212.05:325:31
2312.05:325:30
2411.95:335:29
2511.95:335:28
2611.95:345:27
2711.95:345:26
2811.85:355:25
2911.85:355:23
3011.85:355:22

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.53 kWh/m².

For context, solar energy here swings from a low near 3.96 kWh/m² to a high of 7.69 kWh/m² in June across the year — September's 6.53 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.9Intense
26.9Intense
36.9Intense
46.8Intense
56.8Intense
66.8Intense
76.8Intense
86.7Intense
96.7Intense
106.7Intense
116.7Intense
126.6Intense
136.6Intense
146.6Intense
156.5Intense
166.5Intense
176.5Intense
186.5Intense
196.4Intense
206.4Intense
216.4Intense
226.4Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.2Intense
286.2Intense
296.2Intense
306.1Intense
Planning a trip in September

Hazard calendar for Dhahran

In seasonPeak

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

Dhahran sees seasonal dust haze (February–August), heaviest in May.

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

Is September a good time to visit Dhahran?

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

0.3
Sightseeing
9th-best month of the year
3.3
Beach & pool
9th-best month of the year

September is a weaker month for outdoor sightseeing in Dhahran.

What to pack for Dhahran in September

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

In September, Dhahran sees daytime highs around 40°C and nights near 27°C. Pack light clothes and sun protection.

light clothessun protection

Sea temperature near Dhahran in September

The nearest coast averages about 33°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 28 km away) is warmest in August at about 34°C and coldest in February near 18°C.

It's comfortable for a long swim from Mar 14 to Jan 3 — about 9.7 months when the water holds above 20°C.

15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan19Cool
Feb18Cool
Mar20Refreshing
Apr23Refreshing
May27Warm
Jun30Tropical
Jul32Tropical
Aug34Tropical
Sep33Tropical
Oct30Tropical
Nov26Warm
Dec22Refreshing

UV index in Dhahran in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Dhahran peaks around July 17 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highHighModerateJul 17UV 10Dec 19UV 4
UV index (midday)Level
Jan5Moderate
Feb7High
Mar6High
Apr6High
May8Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep8Very high
Oct7Very high
Nov5High
Dec4Moderate

Air quality in Dhahran 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 Dhahran is worst in July — around 83 µg/m³ PM2.5 (unhealthy), about 2.3× the cleanest month (November, 37 µg/m³).

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorJul 2282 µg/m³Nov 1838 µg/m³
PM2.5 (µg/m³)Level
Jan50Poor
Feb49Poor
Mar56Unhealthy
Apr66Unhealthy
May67Unhealthy
Jun69Unhealthy
Jul83Unhealthy
Aug80Unhealthy
Sep58Unhealthy
Oct48Poor
Nov37Poor
Dec44Poor
Location & terrain

Where is Dhahran?

Dhahran sits at 26.3°N, 50.1°E, 44 m above sea level, in Saudi Arabia. The nearest listed city is Khobar, 9.0 km away.

Topography around Dhahran

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

Within 3 km, the terrain around Dhahran has only modest variations in elevation — a maximum elevation change of 83 m around an average of 45 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 139 m; within 80 km, only modest variations in elevation — a maximum elevation change of 199 m.

The land around Dhahran is covered by bare terrain (57%) and artificial surfaces (38%) within 3 km, bare terrain (52%) and artificial surfaces (34%) within 16 km, and bare terrain (51%) and water (44%) within 80 km.

3 km
83 m
16 km
139 m
80 km
199 m
treesshrubsgrasslandartificial surfacesbare terrainwater
September weather nearby: Khobar 9.0 km · Thuqbah 10 km · Dammam 16 km · Sayhāt 23 km · ‘Inak 27 km · Tārūt 32 km · Al Qaţīf 33 km · Al ‘Awwāmīyah 36 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 Dhahran (26.2886°, 50.114°, elevation 44 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).