Chamrān weather in May

In May, Chamrān sees average daytime highs of 40°C and overnight lows near 25°C, with 4 mm of rain across 0.6 wet days and about 13.5 hours of daylight. It is the 5th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 37°C in the first days to 43°C by the end. The sky is clear or mostly clear about 71% 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 Chamrān's 6th-clearest and 3rd-windiest month. For the whole year in context, see Chamrān's year-round climate.

Daytime high
40°
5th warmest
Overnight low
25°
8th coldest
Rainfall
4 mm
0.6 wet days
Daylight
13 h 30 min
5:23 AM – 6:56 PM
Cloud cover
25%
6th clearest
Wind
14 km/h
3rd windiest
Solar energy
7.5 kWh/m²
Travel score
0.5
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 37°C in the first days to 43°C by the end.

A typical May day in Chamrān reaches about 40°C in the afternoon and slips back to 25°C overnight — a 15°C spread between the day's warmth and the night's chill. On most days the high lands between 36°C and 44°C. Set against its neighbours, May runs about 7°C warmer than April and about 5°C cooler than June.

20°30°40°50°151015202531
Avg high (°C)Avg low (°C)
13723
23723
33723
43724
53824
63824
73824
83824
93924
103925
113925
123925
134025
144025
154025
164026
174126
184126
194126
204126
214226
224226
234227
244227
254227
264327
274327
284327
294327
304428
314428

How May really feels in Chamrān

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
21 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.

Chamrān 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
Jan18° / 636.810.26.8
Feb21° / 11°354.910.97.7
Mar26° / 14°354.111.87.9
Apr33° / 20°122.212.74.3
May40° / 25°40.613.50.5
Jun45° / 29°0013.90.0
Jul47° / 31°00.113.80.0
Aug46° / 30°10.213.10.0
Sep43° / 26°10.512.20.0
Oct36° / 21°8111.22.4
Nov27° / 15°724.510.47.4
Dec20° / 10°726.6107.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 71% 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 17%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17426
27426
37327
47426
57525
67525
77525
87624
97624
107822
117822
127921
137921
148119
158218
168218
178317
188515
198515
208614
218713
228812
238911
248911
25919
26919
27928
28937
29937
30946
31955

Chance of precipitation in May

Any precipitation

Chamrān gets around 4 mm of rain over 0.6 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 2% and peaks near 5% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
15
25
34
44
54
63
73
83
93
102
112
122
132
142
152
162
172
181
191
201
211
221
231
241
251
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 89% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
186941
286941
386941
487841
587841
687841
787841
887841
988840
1088840
1189830
1288930
1388930
1488930
1588930
1689830
1789830
1890820
1990820
2090820
2190820
2290820
2391810
2491810
2592710
2692710
2792710
2892710
2992710
3091711
3191711

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 15 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
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light 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 5:35 AM to 5:16 AM, and sunset from 6:46 PM to 7:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.25:356:46
213.25:346:47
313.25:336:47
413.35:326:48
513.35:326:49
613.35:316:49
713.35:306:50
813.45:296:51
913.45:286:51
1013.45:276:52
1113.45:276:53
1213.55:266:53
1313.55:256:54
1413.55:246:55
1513.55:246:55
1613.55:236:56
1713.65:236:57
1813.65:226:57
1913.65:216:58
2013.65:216:59
2113.75:206:59
2213.75:207:00
2313.75:197:01
2413.75:197:01
2513.75:187:02
2613.75:187:02
2713.85:177:03
2813.85:177:04
2913.85:177:04
3013.85:167:05
3113.85:167:05

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.5 kWh/m².

For context, solar energy here swings from a low near 3.14 kWh/m² to a high of 7.89 kWh/m² in June across the year — May's 7.5 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
87.2Intense
97.3Intense
107.3Intense
117.3Intense
127.4Intense
137.4Intense
147.4Intense
157.5Intense
167.5Intense
177.5Intense
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 Chamrān

In seasonPeak

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

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

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

Is May a good time to visit Chamrān?

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

0.5
Sightseeing
8th-best month of the year
2.9
Beach & pool
7th-best month of the year

May is a weaker month for outdoor sightseeing in Chamrān.

What to pack for Chamrān in May

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

In May, Chamrān sees daytime highs around 40°C and nights near 25°C. Pack light clothes and sun protection.

light clothessun protection

Sea temperature near Chamrān 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 65 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 10 — about 8.4 months when the water holds above 20°C.

20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb16Cool
Mar18Cool
Apr22Refreshing
May26Warm
Jun29Tropical
Jul31Tropical
Aug33Tropical
Sep31Tropical
Oct28Tropical
Nov24Refreshing
Dec19Cool

UV index in Chamrān 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 Chamrān peaks around July 17 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 17UV 10Dec 23UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr6High
May7High
Jun10Very high
Jul10Very high
Aug10Very high
Sep6High
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Chamrān 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 Chamrān is worst in April — around 48 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateApr 1948 µg/m³Nov 1934 µg/m³
PM2.5 (µg/m³)Level
Jan38Poor
Feb41Poor
Mar47Poor
Apr48Poor
May48Poor
Jun38Poor
Jul41Poor
Aug39Poor
Sep36Poor
Oct37Poor
Nov34Moderate
Dec35Moderate
Location & terrain

Where is Chamrān?

Chamrān sits at 30.7°N, 49.2°E, 16 m above sea level, in Iran. The nearest listed city is Bandar-e Māhshahr, 17 km away.

Topography around Chamrān

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

Within 3 km, the terrain around Chamrān has only modest variations in elevation — a maximum elevation change of 13 m around an average of 12 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 16 m; within 80 km, large variations in elevation — a maximum elevation change of 790 m.

The land around Chamrān is covered by cropland (41%) and bare terrain (26%) within 3 km, bare terrain (45%) and cropland (43%) within 16 km, and bare terrain (48%) and cropland (22%) within 80 km.

3 km
13 m
16 km
16 m
80 km
790 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Bandar-e Māhshahr 17 km · Bandar-e Emam Khomeyni 31 km · Rāmshīr 31 km · Shādegān 48 km · Omīdīyeh 52 km · Aghajari 64 km · Hendījān 74 km · Rāmhormoz 76 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 Chamrān (30.7084°, 49.1627°, elevation 16 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).