Behbahān weather in May

In May, Behbahān sees average daytime highs of 38°C and overnight lows near 22°C, with 6 mm of rain across 0.8 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 35°C in the first days to 41°C by the end. The sky is clear or mostly clear about 74% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 12 min at the start of May to 13 h 48 min by month's end. Set against the rest of the year, May is Behbahān's 6th-clearest and 2nd-windiest month. For the whole year in context, see Behbahān's year-round climate.

Daytime high
38°
5th warmest
Overnight low
22°
8th coldest
Rainfall
6 mm
0.8 wet days
Daylight
13 h 30 min
5:19 AM – 6:52 PM
Cloud cover
24%
6th clearest
Wind
11 km/h
2nd windiest
Solar energy
7.54 kWh/m²
Travel score
1.3
out of 10

Behbahān 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 35°C in the first days to 41°C by the end.

A typical May day in Behbahān reaches about 38°C in the afternoon and slips back to 22°C overnight — a 16°C spread between the day's warmth and the night's chill. On most days the high lands between 34°C and 42°C. Set against its neighbours, May runs about 8°C warmer than April and about 5°C cooler than June.

20°30°40°50°151015202531
Avg high (°C)Avg low (°C)
13519
23520
33520
43520
53620
63620
73621
83621
93721
103721
113721
123721
133822
143822
153822
163822
173922
183923
193923
203923
214023
224023
234023
244023
254024
264124
274124
284124
294124
304224
314224

How May really feels in Behbahān

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
13 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.

Behbahān 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° / 115910.26.2
Feb20° / 716.810.97.1
Mar24° / 12°70611.87.9
Apr31° / 17°283.712.75.6
May38° / 22°60.813.51.3
Jun43° / 26°0013.90.0
Jul45° / 28°00.113.80.0
Aug44° / 28°10.613.10.0
Sep41° / 24°10.812.20.2
Oct35° / 19°51.511.23.4
Nov26° / 13°785.410.57.5
Dec20° / 1187.410.17.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 74% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 10% of May, with mostly cloudy or overcast conditions the remaining 16%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17426
27426
37525
47525
57624
67723
77822
87822
97921
108020
118119
128119
138218
148317
158317
168515
178515
188614
198614
208713
218812
228812
238911
248911
25919
26919
27919
28937
29937
30946
31955

Chance of precipitation in May

Any precipitation

Behbahān gets around 6 mm of rain over 0.8 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 3% and peaks near 7% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
17
27
37
46
56
65
75
85
94
104
114
123
133
143
152
162
172
182
191
201
211
221
231
241
251
261
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 95% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
187121
288111
388111
489101
589101
69091
79181
89280
99370
109370
119460
129550
139550
149640
159640
169730
179730
189820
199820
209820
219910
229910
239910
249910
259910
269910
279910
289910
299910
309910
319910

Wind in May

Winds average 11 km/h in May.

Across May, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012light breeze
3112light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 12 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 36 minutes over May. Sunrise moves from 5:31 AM to 5:12 AM, and sunset from 6:41 PM to 7:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.25:316:41
213.25:306:42
313.25:296:43
413.35:286:43
513.35:276:44
613.35:276:45
713.35:266:45
813.45:256:46
913.45:246:47
1013.45:236:48
1113.45:236:48
1213.55:226:49
1313.55:216:50
1413.55:206:50
1513.55:206:51
1613.55:196:52
1713.65:186:52
1813.65:186:53
1913.65:176:53
2013.65:176:54
2113.65:166:55
2213.75:166:55
2313.75:156:56
2413.75:156:57
2513.75:146:57
2613.75:146:58
2713.85:136:59
2813.85:136:59
2913.85:137:00
3013.85:127:00
3113.85:127:01

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.54 kWh/m².

For context, solar energy here swings from a low near 3.22 kWh/m² to a high of 7.92 kWh/m² in June across the year — May's 7.54 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.0Intense
27.1Intense
37.1Intense
47.1Intense
57.2Intense
67.2Intense
77.2Intense
87.3Intense
97.3Intense
107.3Intense
117.4Intense
127.4Intense
137.5Intense
147.5Intense
157.5Intense
167.6Intense
177.6Intense
187.6Intense
197.7Intense
207.7Intense
217.7Intense
227.7Intense
237.8Intense
247.8Intense
257.8Intense
267.8Intense
277.8Intense
287.8Intense
297.9Intense
307.9Intense
317.9Intense
Planning a trip in May

Hazard calendar for Behbahān

In seasonPeak

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

Behbahān 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 Behbahān?

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

1.3
Sightseeing
8th-best month of the year
4.5
Beach & pool
5th-best month of the year

May is a weaker month for outdoor sightseeing in Behbahān.

What to pack for Behbahān in May

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

In May, Behbahān sees daytime highs around 38°C and nights near 22°C. Pack light clothes and sun protection.

light clothessun protection

Sea temperature near Behbahān 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 at the nearest coast (about 54 km away) 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 Behbahān in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks 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 Behbahān peaks around August 11 at about 10 (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 11UV 10Jan 1UV 3
UV index (midday)Level
Jan3Moderate
Feb5High
Mar7High
Apr7High
May8Very high
Jun10Very high
Jul9Very high
Aug10Very high
Sep6High
Oct7High
Nov5Moderate
Dec3Moderate

Air quality in Behbahān 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 Behbahān is worst in April — around 45 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorPoorModerateApr 1545 µg/m³Dec 1733 µg/m³
PM2.5 (µg/m³)Level
Jan33Moderate
Feb38Poor
Mar44Poor
Apr45Poor
May43Poor
Jun34Moderate
Jul37Poor
Aug35Moderate
Sep34Moderate
Oct35Moderate
Nov34Moderate
Dec33Moderate
Location & terrain

Where is Behbahān?

Behbahān sits at 30.6°N, 50.2°E, 326 m above sea level, in Iran. The nearest listed city is Shahrak-e Ţāleqānī, 27 km away.

Topography around Behbahān

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

Within 3 km, the terrain around Behbahān has only modest variations in elevation — a maximum elevation change of 50 m around an average of 324 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 862 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,481 m.

The land around Behbahān is covered by artificial surfaces (56%) and cropland (30%) within 3 km, grassland (54%) and cropland (35%) within 16 km, and grassland (55%) and bare terrain (24%) within 80 km.

3 km
50 m
16 km
862 m
80 km
3,481 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Shahrak-e Ţāleqānī 27 km · Līkak 36 km · Dehdasht 38 km · Aghajari 41 km · Charām 51 km · Omīdīyeh 55 km · Dogonbadan 59 km · Bandar-e Deylam 61 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 Behbahān (30.5959°, 50.2417°, elevation 326 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).