Deir ez-Zor in Summer

In summer (June, July and August), Deir ez-Zor sees average daytime highs around 40°C and overnight lows near 26°C, with 1 mm of rain over about 0 wet days across the season. It is the warmest season of the year and the driest season of the year.

Over the season highs climb from about 36°C in early June to 39°C by late August. The sky is clear or mostly clear about 99% of the time across summer, and the air most often feels dry.

Summer is Deir ez-Zor's weakest season of the year to visit on our travel score. For the whole year in context, see Deir ez-Zor's year-round climate.

Avg daytime high: 40°C; warmest season of the year
Avg overnight low: 26°C
Rainfall: 1 mm; 0 wet days
Avg wind: 21 km/h
Travel score: 0.5; weakest season of the year
Months: Jun · Jul · Aug

← Spring Deir ez-Zor year-round climate Fall →

Spring Summer Fall Winter

Temperature in Deir ez-Zor in Summer

Average highAverage lowShaded bands: 10–90% of days

Over the season highs climb from about 36°C in early June to 39°C by late August.

A typical summer day in Deir ez-Zor reaches about 40°C and drops to 26°C overnight. The warmest of the three months is July, the coolest June.

How summer really feels in Deir ez-Zor

Once humidity and wind are folded in, summer brings about 92 days that feel above 32°C and 0 that feel at or below 0°C.

Days feeling ≥ 32°C

70 feel dangerously hot (≥ 39°C)

Days feeling ≤ 0°C

wind chill below the day's low

The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Deir ez-Zor weather by month

How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	13° / 4°	25	5.6	9.9	4.1
Feb	16° / 6°	22	4.8	10.7	5.6
Mar	21° / 10°	21	4.5	11.7	7.6
Apr	27° / 14°	12	2.8	12.9	7.9
May	33° / 20°	8	1.6	13.8	4.6
Jun	38° / 25°	0	0.1	14.3	1.4
Jul	41° / 27°	0	0	14.1	0.0
Aug	40° / 27°	0	0.1	13.3	0.1
Sep	36° / 23°	0	0.1	12.2	2.5
Oct	30° / 18°	10	1.7	11.1	6.4
Nov	21° / 10°	19	3.5	10.1	7.8
Dec	14° / 6°	24	4.9	9.7	5.0

Cloud cover in Summer

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 99% of the time across summer.

Chance of precipitation in Summer

Any precipitation

Deir ez-Zor gets around 1 mm of rain over 0 wet days across summer. The line is the day-by-day chance of measurable precipitation.

Humidity in Summer

DryComfortableHumidMuggyOppressiveMiserable

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

Wind in Summer

Winds average 21 km/h across summer.

Sunrise & sunset in Summer

DaylightNight

Daylight runs from about 14 h 12 min in early June to 12 h 48 min by late August. The lit band spans sunrise to sunset each day.

Solar energy in Summer

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across summer, about 7.8 kWh/m².

Planning a trip in summer

Hazard calendar for Deir ez-Zor

In seasonPeak

In summer, Deir ez-Zor overlaps its dust season. The full year is below, with each hazard's peak months called out.

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 summer a good time to visit Deir ez-Zor?

Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.

0.5

Sightseeing

4th-best month of the year

3.6

Beach & pool

3rd-best month of the year

summer is a weaker month for outdoor sightseeing in Deir ez-Zor.

What to pack for Deir ez-Zor in Summer

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

In summer, Deir ez-Zor sees daytime highs around 40°C and nights near 26°C. Pack light clothes and sun protection. Worth having: a windbreaker.

light clothessun protectiona windbreaker

UV index in Deir ez-Zor in Summer

LowModerateHighVery highExtreme

Clear-sky midday UV across summer averages around 8 (very high — sun protection essential). 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	2	4	5	6	7	10	6	9	5	5	4	3
Level	Moderate	Moderate	Moderate	High	Very high	Very high	High	Very high	Moderate	Moderate	Moderate	Moderate

	UV index (midday)	Level
Jan	2	Moderate
Feb	4	Moderate
Mar	5	Moderate
Apr	6	High
May	7	Very high
Jun	10	Very high
Jul	6	High
Aug	9	Very high
Sep	5	Moderate
Oct	5	Moderate
Nov	4	Moderate
Dec	3	Moderate

Air quality in Deir ez-Zor in Summer

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where summer 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).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	32	35	44	43	48	49	55	52	42	37	29	31
Level	Moderate	Moderate	Poor	Poor	Poor	Poor	Unhealthy	Poor	Poor	Poor	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	32	Moderate
Feb	35	Moderate
Mar	44	Poor
Apr	43	Poor
May	48	Poor
Jun	49	Poor
Jul	55	Unhealthy
Aug	52	Poor
Sep	42	Poor
Oct	37	Poor
Nov	29	Moderate
Dec	31	Moderate

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.

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

artificial surfaces 45%

16 km

137 m

bare terrain 56%

80 km

684 m

bare terrain 82%

treesshrubsgrasslandcroplandartificial surfacesbare terrainwater

← Spring Deir ez-Zor year-round climate Fall →

Summer 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

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.