Bandar-e Deylam weather in May

In May, Bandar-e Deylam sees average daytime highs of 36°C and overnight lows near 25°C, with 4 mm of rain across 0.3 wet days and about 13.5 hours of daylight. It is the 5th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 34°C in the first days to 39°C by the end. The sky is clear or mostly clear about 77% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 06 min at the start of May to 13 h 48 min by month's end. Set against the rest of the year, May is Bandar-e Deylam's 6th-clearest and 3rd-windiest month. For the whole year in context, see Bandar-e Deylam's year-round climate.

Daytime high
36°
5th warmest
Overnight low
25°
8th coldest
Rainfall
4 mm
0.3 wet days
Daylight
13 h 30 min
5:20 AM – 6:51 PM
Cloud cover
21%
6th clearest
Wind
14 km/h
3rd windiest
Solar energy
7.51 kWh/m²
Travel score
2.4
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 May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 34°C in the first days to 39°C by the end.

A typical May day in Bandar-e Deylam reaches about 36°C in the afternoon and slips back to 25°C overnight — a 11°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, May runs about 6°C warmer than April and about 4°C cooler than June.

20°30°40°151015202531
Avg high (°C)Avg low (°C)
13323
23423
33423
43423
53424
63424
73524
83524
93524
103524
113525
123625
133625
143625
153625
163625
173726
183726
193726
203726
213726
223826
233826
243827
253827
263827
273927
283927
293927
303927
313928

How May really feels in Bandar-e Deylam

Once humidity and wind are folded in, May averages 31 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
31
2 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

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

Bandar-e Deylam weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 7th-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 May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 77% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 9% of May, with mostly cloudy or overcast conditions the remaining 14%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17624
27723
37624
47723
57822
67921
78020
88020
98119
108218
118317
128317
138416
148515
158614
168713
178713
188713
198911
208911
218911
228911
23919
24919
25919
26928
27928
28946
29946
30946
31955

Chance of precipitation in May

Any precipitation

Bandar-e Deylam gets around 4 mm of rain over 0.3 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 1% and peaks near 4% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
14
23
33
43
53
62
72
82
92
101
111
121
131
141
151
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 59% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
161281010
261281010
359291020
459291020
559291020
658301020
758301020
858301020
957311020
1057311020
1156311120
1256311120
1356311120
1457301120
1558301110
1657301210
1758291210
1857291220
1958281220
2058281220
2159271220
2259271220
2360261220
2460261220
2559251330
2659251330
2760241330
2859241331
2960231331
3061221331
3160221341

Wind in May

Winds average 14 km/h in May.

Across May, daily wind ranges from about 14 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
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
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2916light breeze
3016light breeze
3116light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 06 min at the start of May to 13 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over May. Sunrise moves from 5:32 AM to 5:13 AM, and sunset from 6:41 PM to 7:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.15:326:41
213.25:316:42
313.25:306:42
413.25:296:43
513.35:296:44
613.35:286:44
713.35:276:45
813.35:266:46
913.35:256:46
1013.45:256:47
1113.45:246:48
1213.45:236:48
1313.45:226:49
1413.55:226:50
1513.55:216:50
1613.55:206:51
1713.55:206:51
1813.55:196:52
1913.65:196:53
2013.65:186:53
2113.65:186:54
2213.65:176:55
2313.65:176:55
2413.75:166:56
2513.75:166:57
2613.75:156:57
2713.75:156:58
2813.75:146:58
2913.75:146:59
3013.85:146:59
3113.85:137:00

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.51 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 — May's 7.51 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.1Intense
27.1Intense
37.1Intense
47.2Intense
57.2Intense
67.2Intense
77.3Intense
87.3Intense
97.3Intense
107.4Intense
117.4Intense
127.4Intense
137.5Intense
147.5Intense
157.5Intense
167.5Intense
177.6Intense
187.6Intense
197.6Intense
207.6Intense
217.7Intense
227.7Intense
237.7Intense
247.7Intense
257.7Intense
267.8Intense
277.8Intense
287.8Intense
297.8Intense
307.8Intense
317.8Intense
Planning a trip in May

Hazard calendar for Bandar-e Deylam

In seasonPeak

In May, Bandar-e Deylam sits inside 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 May a good time to visit Bandar-e Deylam?

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

2.4
Sightseeing
8th-best month of the year
6.0
Beach & pool
5th-best month of the year

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

What to pack for Bandar-e Deylam in May

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

In May, Bandar-e Deylam sees daytime highs around 36°C and nights near 25°C. Pack light clothes and sun protection.

light clothessun protection

Sea temperature near Bandar-e Deylam in May

The nearest coast averages about 26°C in May — 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 May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 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 May

GoodModeratePoorUnhealthyVery unhealthy

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