Deir ez-Zor weather in September

In September, Deir ez-Zor sees average daytime highs of 36°C and overnight lows near 23°C, with 0 mm of rain across 0.1 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 39°C in the first days to 34°C by the end. The sky is clear or mostly clear about 97% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 48 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Deir ez-Zor's 3rd-clearest and 5th-windiest month. For the whole year in context, see Deir ez-Zor's year-round climate.

Daytime high
36°
4th warmest
Overnight low
23°
9th coldest
Rainfall
0 mm
0.1 wet days
Daylight
12 h 12 min
5:07 AM – 5:20 PM
Cloud cover
4%
3rd clearest
Wind
14 km/h
5th windiest
Solar energy
6.13 kWh/m²
Travel score
2.5
out of 10

Deir ez-Zor is city in eastern Syria.

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 39°C in the first days to 34°C by the end.

A typical September day in Deir ez-Zor reaches about 36°C in the afternoon and slips back to 23°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 33°C and 40°C. Set against its neighbours, September runs about 4°C cooler than August and about 6°C warmer than October.

20°30°40°151015202530
Avg high (°C)Avg low (°C)
13926
23926
33926
43825
53825
63825
73825
83825
93825
103724
113724
123724
133724
143724
153724
163724
173623
183623
193623
203623
213623
223522
233522
243522
253522
263522
273421
283421
293421
303421

How September really feels in Deir ez-Zor

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
heat index over the day's high
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.

Deir ez-Zor 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
Jan13° / 255.69.94.1
Feb16° / 224.810.75.6
Mar21° / 10°214.511.77.6
Apr27° / 14°122.812.97.9
May33° / 20°81.613.84.6
Jun38° / 25°00.114.31.4
Jul41° / 27°0014.10.0
Aug40° / 27°00.113.30.1
Sep36° / 23°00.112.22.5
Oct30° / 18°101.711.16.4
Nov21° / 10°193.510.17.8
Dec14° / 244.99.75.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 97% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 2% of September, with mostly cloudy or overcast conditions the remaining 1%. Skies tend to cloud over as the month goes on.

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
20991
21991
22991
23991
24982
25982
26982
27973
28973
29973
30955

Chance of precipitation in September

Any precipitation

Deir ez-Zor gets around 0 mm of rain over 0.1 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 2% 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
221
231
241
251
261
271
282
292
302

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 79% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
167312
268302
368302
469292
571281
671281
772271
873261
973261
1074251
1175241
1277230
1378220
1479210
1580200
1680200
1781190
1882180
1983170
2084160
2184160
2285150
2386140
2486140
2587130
2688120
2787121
2888111
2989101
3089101

Wind in September

Winds average 14 km/h in September.

Across September, daily wind ranges from about 12 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2812light breeze
2912light breeze
3012light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 48 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over September. Sunrise moves from 4:56 AM to 5:18 AM, and sunset from 5:43 PM to 4:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.84:565:43
212.74:565:41
312.74:575:40
412.74:585:38
512.64:595:37
612.65:005:35
712.65:005:34
812.55:015:32
912.55:025:31
1012.45:035:29
1112.45:035:28
1212.45:045:26
1312.35:055:25
1412.35:065:23
1512.35:065:22
1612.25:075:20
1712.25:085:19
1812.15:095:17
1912.15:095:16
2012.15:105:14
2112.05:115:13
2212.05:125:11
2312.05:135:10
2411.95:135:08
2511.95:145:07
2611.85:155:05
2711.85:165:04
2811.85:175:02
2911.75:175:01
3011.75:184:59

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.13 kWh/m².

For context, solar energy here swings from a low near 2.58 kWh/m² to a high of 8.06 kWh/m² in June across the year — September's 6.13 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.8Intense
26.8Intense
36.7Intense
46.7Intense
56.6Intense
66.6Intense
76.5Intense
86.5Intense
96.4Intense
106.4Intense
116.3Intense
126.3Intense
136.3Intense
146.2Intense
156.2Intense
166.1Intense
176.1Intense
186.0Intense
196.0Bright
205.9Bright
215.9Bright
225.8Bright
235.8Bright
245.7Bright
255.7Bright
265.6Bright
275.6Bright
285.5Bright
295.5Bright
305.4Bright
Planning a trip in September

Hazard calendar for Deir ez-Zor

In seasonPeak

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

Deir ez-Zor sees seasonal dust haze (April–June), heaviest in May.

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

Is September a good time to visit Deir ez-Zor?

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

2.5
Sightseeing
9th-best month of the year
6.2
Beach & pool
4th-best month of the year

September is a weaker month for outdoor sightseeing in Deir ez-Zor. The water and warmth also suit a beach or pool day.

What to pack for Deir ez-Zor in September

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

In September, Deir ez-Zor sees daytime highs around 36°C and nights near 23°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Deir ez-Zor in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Deir ez-Zor peaks around June 14 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 13 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highModerateJun 14UV 9Jan 13UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr6High
May7Very high
Jun10Very high
Jul6High
Aug9Very high
Sep5Moderate
Oct5Moderate
Nov4Moderate
Dec3Moderate

Air quality in Deir ez-Zor 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 Deir ez-Zor is worst in July — around 55 µg/m³ PM2.5 (unhealthy), about 1.9× the cleanest month (November, 29 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateJul 1955 µg/m³Nov 2030 µg/m³
PM2.5 (µg/m³)Level
Jan32Moderate
Feb35Moderate
Mar44Poor
Apr43Poor
May48Poor
Jun49Poor
Jul55Unhealthy
Aug52Poor
Sep42Poor
Oct37Poor
Nov29Moderate
Dec31Moderate
Location & terrain

Where is Deir ez-Zor?

Deir ez-Zor sits at 35.3°N, 40.1°E, 210 m above sea level, in Syria. The nearest listed city is Al Mayādīn, 45 km away.

Al MayādīnSubaykhānHajīnĀlbū KamālAr RaqqahAl Qā’imAl ḨasakahAl-Tabqa

Topography around Deir ez-Zor

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Deir ez-Zor.

Within 3 km, the terrain around Deir ez-Zor has only modest variations in elevation — a maximum elevation change of 65 m around an average of 215 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 137 m; within 80 km, large variations in elevation — a maximum elevation change of 684 m.

The land around Deir ez-Zor is covered by artificial surfaces (45%) and bare terrain (23%) within 3 km, bare terrain (56%) within 16 km, and bare terrain (82%) within 80 km.

3 km
65 m
16 km
137 m
80 km
684 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Al Mayādīn 45 km · Subaykhān 68 km · Hajīn 95 km · Ālbū Kamāl 121 km · Ar Raqqah 123 km · Al Qā’im 130 km · Al Ḩasakah 141 km · Al-Tabqa 154 km

Syria travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / E / L
220 V · 50 Hz
Prices
≈ 32% of US
price level, 2022
GDP per capita
$1,057
2022
Happiness
3.5 / 10
World Happiness, 2018
Homicide rate
2.1
per 100k, 2010
Road deaths
14.9
per 100k/yr, 2019
Income group
Low
World Bank
English
Low
EF EPI 456
Religion
Muslim 87%Christian 10%Druze 3%

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 Deir ez-Zor (35.3359°, 40.1408°, elevation 210 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).