Jubail weather in September

In September, Jubail 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 42°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 humid.

Daylight stretches from about 12 h 36 min at the start of September to 11 h 48 min by month's end. Set against the rest of the year, September is Jubail's 1st-clearest and 11th-windiest month. For the whole year in context, see Jubail'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
5:31 AM – 5:41 PM
Cloud cover
1%
1st clearest
Wind
14 km/h
11th windiest
Solar energy
6.45 kWh/m²
Travel score
0.2
out of 10

Jubail is city in Saudi Arabia.

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 42°C in the first days to 39°C by the end.

A typical September day in Jubail 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 43°C. Set against its neighbours, September runs about 3°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
34229
44229
54129
64129
74129
84128
94128
104128
114128
124128
134128
144028
154027
164027
174027
184027
194027
204027
214027
224027
233926
243926
253926
263926
273926
283926
293926
303825

How September really feels in Jubail

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.

Jubail 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
Jan20° / 12°223.810.57.8
Feb22° / 13°122.3118.5
Mar27° / 16°132.311.88.2
Apr32° / 21°51.212.64.8
May38° / 26°10.213.31.1
Jun42° / 30°0013.70.0
Jul43° / 31°0013.50.0
Aug43° / 30°00130.0
Sep40° / 27°0012.20.2
Oct36° / 23°20.311.43.1
Nov28° / 18°212.510.77.4
Dec22° / 14°223.310.38.3

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 0% 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
26991
27991
28991
29991
30991

Chance of precipitation in September

Any precipitation

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

By dew point, September lands in the humid band about 26% of days. Sticky, muggy-or-worse air turns up on roughly 55% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
121620231821
221621231920
321622231919
421623231918
521623231917
621624241916
731624241815
831625241814
931625241813
1031626241813
1131626251812
1241626251811
1341626251811
1441626261810
1541626261810
1641626261810
175152627189
185152727189
195152727188
205142727188
215142727198
225142827197
235132827197
246132827197
256132927196
266142927196
276142926195
286152926195
296152926195
306162925194

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 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
114light breeze
214light 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
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 36 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 48 minutes over September. Sunrise moves from 5:24 AM to 5:38 AM, and sunset from 5:58 PM to 5:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:245:58
212.55:255:57
312.55:255:56
412.55:265:55
512.55:265:54
612.45:275:52
712.45:275:51
812.45:285:50
912.35:285:49
1012.35:285:48
1112.35:295:47
1212.35:295:45
1312.25:305:44
1412.25:305:43
1512.25:315:42
1612.25:315:41
1712.15:325:39
1812.15:325:38
1912.15:325:37
2012.05:335:36
2112.05:335:35
2212.05:345:33
2312.05:345:32
2411.95:355:31
2511.95:355:30
2611.95:365:29
2711.95:365:28
2811.85:375:26
2911.85:375:25
3011.85:385:24

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.45 kWh/m².

For context, solar energy here swings from a low near 3.75 kWh/m² to a high of 7.66 kWh/m² in June across the year — September's 6.45 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.9Intense
26.8Intense
36.8Intense
46.8Intense
56.8Intense
66.7Intense
76.7Intense
86.7Intense
96.6Intense
106.6Intense
116.6Intense
126.5Intense
136.5Intense
146.5Intense
156.5Intense
166.4Intense
176.4Intense
186.4Intense
196.3Intense
206.3Intense
216.3Intense
226.3Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.1Intense
286.1Intense
296.1Intense
306.0Intense
Planning a trip in September

Hazard calendar for Jubail

In seasonPeak

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

Jubail 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 Jubail?

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

0.2
Sightseeing
9th-best month of the year
3.2
Beach & pool
9th-best month of the year

September is a weaker month for outdoor sightseeing in Jubail.

What to pack for Jubail in September

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

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

light clothessun protection

Sea temperature near Jubail in September

The nearest coast averages about 32°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 33°C and coldest in February near 19°C.

It's comfortable for a long swim from Mar 22 to Jan 14 — about 9.8 months when the water holds above 20°C.

15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan20Cool
Feb19Cool
Mar20Cool
Apr22Refreshing
May26Warm
Jun30Tropical
Jul32Tropical
Aug33Tropical
Sep32Tropical
Oct30Tropical
Nov27Warm
Dec23Refreshing

UV index in Jubail in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Jubail peaks around July 17 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 17UV 10Dec 22UV 3
UV index (midday)Level
Jan4Moderate
Feb6High
Mar7High
Apr6High
May8Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep7Very high
Oct7High
Nov5Moderate
Dec3Moderate

Air quality in Jubail 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 Jubail is worst in July — around 72 µg/m³ PM2.5 (unhealthy), about 1.7× the cleanest month (November, 42 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorJul 1972 µg/m³Nov 1743 µg/m³
PM2.5 (µg/m³)Level
Jan57Unhealthy
Feb55Poor
Mar60Unhealthy
Apr65Unhealthy
May69Unhealthy
Jun68Unhealthy
Jul72Unhealthy
Aug70Unhealthy
Sep61Unhealthy
Oct52Poor
Nov42Poor
Dec49Poor
Location & terrain

Where is Jubail?

Jubail sits at 27.0°N, 49.6°E, 5 m above sea level, in Saudi Arabia. The nearest listed city is Şafwá, 53 km away.

Topography around Jubail

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

Within 3 km, the terrain around Jubail has only modest variations in elevation — a maximum elevation change of 19 m around an average of 6 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 90 m; within 80 km, only modest variations in elevation — a maximum elevation change of 165 m.

The land around Jubail is covered by bare terrain (58%) and artificial surfaces (32%) within 3 km, bare terrain (48%) and water (39%) within 16 km, and bare terrain (52%) and water (45%) within 80 km.

3 km
19 m
16 km
90 m
80 km
165 m
shrubsartificial surfacesbare terrainwater
September weather nearby: Şafwá 53 km · Raḩīmah 56 km · Ras Tanura 56 km · Al ‘Awwāmīyah 59 km · Al Qaţīf 63 km · Tārūt 64 km · ‘Inak 68 km · Sayhāt 73 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 Jubail (27.0174°, 49.6225°, elevation 5 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).