Dezful weather in May

In May, Dezful sees average daytime highs of 37°C and overnight lows near 21°C, with 9 mm of rain across 1.6 wet days and about 13.6 hours of daylight. It is the 5th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 33°C in the first days to 41°C by the end. The sky is clear or mostly clear about 69% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 18 min at the start of May to 13 h 54 min by month's end. Set against the rest of the year, May is Dezful's 6th-clearest and 1st-windiest month. For the whole year in context, see Dezful's year-round climate.

Daytime high
37°
5th warmest
Overnight low
21°
8th coldest
Rainfall
9 mm
1.6 wet days
Daylight
13 h 42 min
5:23 AM – 7:02 PM
Cloud cover
29%
6th clearest
Wind
8 km/h
1st windiest
Solar energy
7.4 kWh/m²
Travel score
2.0
out of 10

Dezful is city in Khuzestan 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 33°C in the first days to 41°C by the end.

A typical May day in Dezful reaches about 37°C in the afternoon and slips back to 21°C overnight — a 16°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 41°C. Set against its neighbours, May runs about 8°C warmer than April and about 6°C cooler than June.

10°20°30°40°151015202531
Avg high (°C)Avg low (°C)
13319
23319
33319
43319
53419
63419
73420
83520
93520
103520
113520
123621
133621
143621
153721
163721
173721
183822
193822
203822
213822
223922
233923
243923
254023
264023
274023
284023
294124
304124
314124

How May really feels in Dezful

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
8 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.

Dezful weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan16° / 1329.710.15.5
Feb18° / 947.910.86.5
Mar23° / 11°1137.311.87.5
Apr29° / 16°705.312.86.4
May37° / 21°91.613.62.0
Jun43° / 25°0014.10.0
Jul45° / 28°0013.90.0
Aug45° / 28°0013.20.0
Sep41° / 23°10.312.20.2
Oct34° / 19°221.711.23.8
Nov24° / 13°896.210.37.6
Dec18° / 1358.39.96.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 69% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 12% of May, with mostly cloudy or overcast conditions the remaining 19%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17030
27030
37030
47030
57129
67129
77228
87327
97426
107525
117723
127723
137822
148020
158020
168218
178317
188416
198416
208614
218614
228713
238713
248713
258812
268911
278911
289010
299010
30919
31928

Chance of precipitation in May

Any precipitation

Dezful gets around 9 mm of rain over 1.6 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 5% and peaks near 12% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
112
212
312
411
511
610
79
89
98
108
117
127
136
145
155
164
174
183
193
202
212
222
232
241
251
261
271
281
291
301
311

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 89% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
176213
277203
377203
478193
579183
680173
781163
882153
983143
1084133
1185123
1286113
1388102
148992
159082
169082
179172
189262
199262
209451
219451
229541
239541
249631
259631
269631
279820
289820
299820
309820
319820

Wind in May

Winds average 8 km/h in May, the windiest month of the year.

Across May, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 18 min at the start of May to 13 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over May. Sunrise moves from 5:36 AM to 5:15 AM, and sunset from 6:51 PM to 7:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:366:51
213.35:356:52
313.35:346:53
413.35:336:54
513.45:326:54
613.45:316:55
713.45:306:56
813.55:296:56
913.55:286:57
1013.55:286:58
1113.55:276:59
1213.65:266:59
1313.65:257:00
1413.65:247:01
1513.65:247:02
1613.75:237:02
1713.75:227:03
1813.75:227:04
1913.75:217:04
2013.75:207:05
2113.85:207:06
2213.85:197:06
2313.85:197:07
2413.85:187:08
2513.85:187:08
2613.95:177:09
2713.95:177:10
2813.95:167:10
2913.95:167:11
3013.95:167:12
3113.95:157:12

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.4 kWh/m².

For context, solar energy here swings from a low near 2.88 kWh/m² to a high of 7.96 kWh/m² in June across the year — May's 7.4 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
16.9Intense
26.9Intense
36.9Intense
47.0Intense
57.0Intense
67.0Intense
77.1Intense
87.1Intense
97.2Intense
107.2Intense
117.2Intense
127.3Intense
137.3Intense
147.4Intense
157.4Intense
167.4Intense
177.5Intense
187.5Intense
197.5Intense
207.6Intense
217.6Intense
227.6Intense
237.7Intense
247.7Intense
257.7Intense
267.7Intense
277.8Intense
287.8Intense
297.8Intense
307.8Intense
317.8Intense
Planning a trip in May

Hazard calendar for Dezful

In seasonPeak

In May, Dezful sits inside its dust season. The full year is below, with each hazard's peak months called out.

Dezful's rainy season runs November–April, when most of the year's rain falls.

Dezful sees seasonal dust haze (March–May), heaviest in May.

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

Is May a good time to visit Dezful?

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

2.0
Sightseeing
8th-best month of the year
5.2
Beach & pool
5th-best month of the year

May is a weaker month for outdoor sightseeing in Dezful.

What to pack for Dezful in May

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

In May, Dezful sees daytime highs around 37°C and nights near 21°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Dezful in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks 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 Dezful peaks around June 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 13 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 15UV 9Jan 13UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May9Very high
Jun9Very high
Jul9Very high
Aug9Very high
Sep6High
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Dezful 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 Dezful is worst in May — around 51 µg/m³ PM2.5 (poor), about 1.6× the cleanest month (November, 31 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateMay 1050 µg/m³Nov 1831 µg/m³
PM2.5 (µg/m³)Level
Jan35Poor
Feb42Poor
Mar48Poor
Apr49Poor
May51Poor
Jun35Poor
Jul36Poor
Aug33Moderate
Sep32Moderate
Oct32Moderate
Nov31Moderate
Dec32Moderate
Location & terrain

Where is Dezful?

Dezful sits at 32.4°N, 48.4°E, 143 m above sea level, in Iran. The nearest listed city is Andīmeshk, 10 km away.

Topography around Dezful

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Dezful.

Within 3 km, the terrain around Dezful has only modest variations in elevation — a maximum elevation change of 42 m around an average of 136 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 279 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,662 m.

The land around Dezful is covered by artificial surfaces (64%) within 3 km, cropland (63%) within 16 km, and grassland (48%) and cropland (29%) within 80 km.

3 km
42 m
16 km
279 m
80 km
2,662 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Andīmeshk 10 km · Shush 26 km · Gotvand 41 km · Shūshtar 56 km · Lālī 65 km · Sūsangerd 93 km · Masjed Soleymān 98 km · Ḥamīdiyeh 100 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 Dezful (32.3811°, 48.4058°, elevation 143 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).