Bandar-e Deylam weather in September

In September, Bandar-e Deylam sees average daytime highs of 38°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 40°C in the first days to 37°C by the end. The sky is clear or mostly clear about 99% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 36 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Bandar-e Deylam's 2nd-clearest and 11th-windiest month. For the whole year in context, see Bandar-e Deylam's year-round climate.

Daytime high
38°
4th warmest
Overnight low
27°
9th coldest
Rainfall
0 mm
0 wet days
Daylight
12 h 12 min
5:58 AM – 6:09 PM
Cloud cover
2%
2nd clearest
Wind
12 km/h
11th windiest
Solar energy
6.31 kWh/m²
Travel score
1.2
out of 10

Bandar-e Deylam is city in Bushehr Province, Iran.

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 40°C in the first days to 37°C by the end.

A typical September day in Bandar-e Deylam reaches about 38°C in the afternoon and slips back to 27°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 36°C and 41°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)
14028
24028
34028
44028
54028
63928
73928
83928
93927
103927
113927
123927
133927
143927
153827
163826
173826
183826
193826
203826
213826
223826
233826
243725
253725
263725
273725
283725
293725
303725

How September really feels in Bandar-e Deylam

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
16 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.

Bandar-e Deylam 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
Jan18° / 10°74710.36.8
Feb20° / 12°384.810.97.5
Mar24° / 15°344.311.88.3
Apr30° / 20°101.912.76.3
May36° / 25°40.313.52.4
Jun40° / 29°0013.90.0
Jul41° / 30°0013.70.0
Aug41° / 30°0013.10.0
Sep38° / 27°0012.21.2
Oct34° / 22°20.511.34.2
Nov26° / 16°584.210.57.7
Dec20° / 12°896.410.17.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 99% of the time in September.

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
24982
25982
26982
27982
28982
29982
30982

Chance of precipitation in September

Any precipitation

Bandar-e Deylam 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 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 27% of days. Sticky, muggy-or-worse air turns up on roughly 43% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1191212141824
2201212141823
3221312141822
4231312131821
5241312131819
6251312131818
7261312131817
8261413141816
9271413141814
10281413141713
11281414151712
12281514161711
1327151516179
1427151517178
1527161618177
1627161618177
1726161619166
1826161719165
1926161720165
2026161720164
2126161720164
2227161820164
2327161820163
2428161820163
2529151820153
2631151719152
2732151719152
2834151718142
2935151718142
3036151717132

Wind in September

Winds average 12 km/h in September.

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

051015151015202530
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712calm
1812calm
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 36 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 54 minutes over September. Sunrise moves from 5:50 AM to 6:06 AM, and sunset from 6:28 PM to 5:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:506:28
212.65:516:27
312.65:516:26
412.55:526:24
512.55:526:23
612.55:536:22
712.55:536:21
812.45:546:19
912.45:546:18
1012.45:556:17
1112.35:566:16
1212.35:566:14
1312.35:576:13
1412.25:576:12
1512.25:586:10
1612.25:586:09
1712.15:596:08
1812.15:596:06
1912.16:006:05
2012.16:016:04
2112.06:016:03
2212.06:026:01
2312.06:026:00
2411.96:035:59
2511.96:035:57
2611.96:045:56
2711.86:055:55
2811.86:055:54
2911.86:065:52
3011.76:065:51

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.31 kWh/m².

For context, solar energy here swings from a low near 3.31 kWh/m² to a high of 7.82 kWh/m² in June across the year — September's 6.31 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.8Intense
26.8Intense
36.7Intense
46.7Intense
56.7Intense
66.6Intense
76.6Intense
86.6Intense
96.5Intense
106.5Intense
116.5Intense
126.4Intense
136.4Intense
146.4Intense
156.3Intense
166.3Intense
176.3Intense
186.2Intense
196.2Intense
206.2Intense
216.1Intense
226.1Intense
236.1Intense
246.0Intense
256.0Bright
266.0Bright
275.9Bright
285.9Bright
295.8Bright
305.8Bright
Planning a trip in September

Hazard calendar for Bandar-e Deylam

In seasonPeak

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

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 September a good time to visit Bandar-e Deylam?

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

1.2
Sightseeing
9th-best month of the year
4.7
Beach & pool
6th-best month of the year

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

What to pack for Bandar-e Deylam in September

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

In September, Bandar-e Deylam sees daytime highs around 38°C and nights near 27°C. Pack light clothes and sun protection.

light clothessun protection

Sea temperature near Bandar-e Deylam 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 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.

20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan17Cool
Feb16Cool
Mar18Cool
Apr22Refreshing
May26Warm
Jun29Tropical
Jul31Tropical
Aug33Tropical
Sep32Tropical
Oct29Tropical
Nov24Warm
Dec20Cool

UV index in Bandar-e Deylam in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 6 — enough to warrant sun protection. 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateAug 10UV 9Jan 1UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr6High
May7High
Jun9Very high
Jul9Very high
Aug9Very high
Sep6High
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Bandar-e Deylam 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 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).

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateMay 1242 µg/m³Nov 2232 µg/m³
PM2.5 (µg/m³)Level
Jan36Poor
Feb38Poor
Mar41Poor
Apr41Poor
May43Poor
Jun37Poor
Jul41Poor
Aug40Poor
Sep37Poor
Oct36Poor
Nov32Moderate
Dec32Moderate
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
16 km
102 m
80 km
2,180 m
shrubsgrasslandcroplandartificial surfacesbare terrainwater
September 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
Muslim 99%Christian 1%Baha'i 0%agnostic 0%

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. 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).