Bandar-e Deylam in Summer

In summer (June, July and August), Bandar-e Deylam sees average daytime highs around 41°C and overnight lows near 29°C, with 0 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.

Across summer, daytime highs hold fairly steady around 41°C. The sky is clear or mostly clear about 99% of the time across summer, and the air most often feels dry.

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

Avg daytime high: 41°C; warmest season of the year
Avg overnight low: 29°C
Rainfall: 0 mm; 0 wet days
Avg wind: 15 km/h
Travel score: 0.0; weakest season of the year
Months: Jun · Jul · Aug

← Spring Bandar-e Deylam year-round climate Fall →

Spring Summer Fall Winter

Temperature in Bandar-e Deylam in Summer

Average highAverage lowShaded bands: 10–90% of days

Across summer, daytime highs hold fairly steady around 41°C.

A typical summer day in Bandar-e Deylam reaches about 41°C and drops to 29°C overnight. The warmest of the three months is July, the coolest June.

How summer really feels in Bandar-e Deylam

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

92 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.

Bandar-e Deylam 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	18° / 10°	74	7	10.3	6.8
Feb	20° / 12°	38	4.8	10.9	7.5
Mar	24° / 15°	34	4.3	11.8	8.3
Apr	30° / 20°	10	1.9	12.7	6.3
May	36° / 25°	4	0.3	13.5	2.4
Jun	40° / 29°	0	0	13.9	0.0
Jul	41° / 30°	0	0	13.7	0.0
Aug	41° / 30°	0	0	13.1	0.0
Sep	38° / 27°	0	0	12.2	1.2
Oct	34° / 22°	2	0.5	11.3	4.2
Nov	26° / 16°	58	4.2	10.5	7.7
Dec	20° / 12°	89	6.4	10.1	7.4

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

Bandar-e Deylam gets around 0 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 15 km/h across summer.

Sunrise & sunset in Summer

DaylightNight

Daylight runs from about 13 h 48 min in early June to 12 h 42 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 7.5 kWh/m².

Planning a trip in summer

Hazard calendar for Bandar-e Deylam

In seasonPeak

In summer, Bandar-e Deylam overlaps its dust season. The full year is below, with each hazard's peak months called out.

Bandar-e Deylam sees seasonal dust haze (March–May), heaviest in April.

Dust

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is summer a good time to visit Bandar-e Deylam?

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.

0.0

Sightseeing

4th-best month of the year

2.7

Beach & pool

4th-best month of the year

summer is a weaker month for outdoor sightseeing in Bandar-e Deylam.

What to pack for Bandar-e Deylam in Summer

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

In summer, Bandar-e Deylam sees daytime highs around 41°C and nights near 29°C. Pack light clothes and sun protection.

light clothessun protection

Sea temperature near Bandar-e Deylam in Summer

The nearest coast averages about 31°C across summer — 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 16°C.

It's comfortable for a long swim from Apr 1 to Dec 14 — about 8.5 months when the water holds above 20°C.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	17	16	18	22	26	29	31	33	32	29	24	20
Comfort	Cool	Cool	Cool	Refreshing	Warm	Tropical	Tropical	Tropical	Tropical	Tropical	Warm	Cool

	Sea temperature (°C)	Comfort
Jan	17	Cool
Feb	16	Cool
Mar	18	Cool
Apr	22	Refreshing
May	26	Warm
Jun	29	Tropical
Jul	31	Tropical
Aug	33	Tropical
Sep	32	Tropical
Oct	29	Tropical
Nov	24	Warm
Dec	20	Cool

UV index in Bandar-e Deylam in Summer

LowModerateHighVery highExtreme

Clear-sky midday UV across summer averages 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 Bandar-e Deylam peaks around August 10 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 3 (moderate).

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

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

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

Air quality in Bandar-e Deylam 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 Bandar-e Deylam is worst in May — around 43 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	36	38	41	41	43	37	41	40	37	36	32	32
Level	Poor	Poor	Poor	Poor	Poor	Poor	Poor	Poor	Poor	Poor	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	36	Poor
Feb	38	Poor
Mar	41	Poor
Apr	41	Poor
May	43	Poor
Jun	37	Poor
Jul	41	Poor
Aug	40	Poor
Sep	37	Poor
Oct	36	Poor
Nov	32	Moderate
Dec	32	Moderate

Location & terrain

Where is Bandar-e Deylam?

Bandar-e Deylam sits at 30.1°N, 50.2°E, 5 m above sea level, in Iran. The nearest listed city is Hendījān, 48 km away.

Topography around Bandar-e Deylam

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Bandar-e Deylam.

Within 3 km, the terrain around Bandar-e Deylam has only modest variations in elevation — a maximum elevation change of 11 m around an average of 2 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 102 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,180 m.

The land around Bandar-e Deylam is covered by bare terrain (58%) and water (26%) within 3 km, water (41%) and bare terrain (36%) within 16 km, and grassland (36%), water (30%) and bare terrain (23%) within 80 km.

3 km

11 m

bare terrain 58%

16 km

102 m

water 41%

80 km

2,180 m

grassland 36%

shrubsgrasslandcroplandartificial surfacesbare terrainwater

← Spring Bandar-e Deylam year-round climate Fall →

Summer weather nearby: Hendījān 48 km · Behbahān 61 km · Bandar-e Genāveh 63 km · Dogonbadan 70 km · Aghajari 78 km · Shahrak-e Ţāleqānī 87 km · Omīdīyeh 90 km · Dehdasht 91 km

Iran travel facts

Travel advisory: Level 4; Do Not Travel
Power plugs: Type C / F; 220 V · 50 Hz
Prices: ≈ 352% of US; price level, 2025
GDP per capita: $3,924; 2025
Happiness: 5.2 / 10; World Happiness, 2025
Safe drinking water: 94%; of population, 2024
Homicide rate: 2.4; per 100k, 2014
Road deaths: 21.5; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Low; EF EPI 492
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 Bandar-e Deylam (30.0542°, 50.159°, 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.