Khūrmūj weather in May

In May, Khūrmūj sees average daytime highs of 37°C and overnight lows near 23°C, with 2 mm of rain across 0.6 wet days and about 13.4 hours of daylight. It is the 5th-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 35°C in the first days to 40°C by the end. The sky is clear or mostly clear about 79% 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 42 min by month's end. Set against the rest of the year, May is Khūrmūj's 6th-clearest and 1st-windiest month. For the whole year in context, see Khūrmūj's year-round climate.

Daytime high
37°
5th warmest
Overnight low
23°
8th coldest
Rainfall
2 mm
0.6 wet days
Daylight
13 h 24 min
5:18 AM – 6:43 PM
Cloud cover
19%
6th clearest
Wind
9 km/h
1st windiest
Solar energy
7.65 kWh/m²
Travel score
1.7
out of 10

Khūrmūj 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 35°C in the first days to 40°C by the end.

A typical May day in Khūrmūj reaches about 37°C in the afternoon and slips back to 23°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 34°C and 41°C. Set against its neighbours, May runs about 7°C warmer than April and about 4°C cooler than June.

20°30°40°151015202531
Avg high (°C)Avg low (°C)
13421
23521
33521
43522
53522
63622
73622
83622
93623
103623
113723
123723
133723
143723
153723
163724
173824
183824
193824
203824
213824
223924
233925
243925
253925
263925
273925
284025
294025
304025
314026

How May really feels in Khūrmūj

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
7 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.

Khūrmūj weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan18° / 767.210.46.7
Feb20° / 10°415.1117.5
Mar25° / 13°354.811.88.2
Apr31° / 18°112.112.75.7
May37° / 23°20.613.41.7
Jun41° / 27°00.213.80.0
Jul42° / 29°10.313.60.0
Aug41° / 28°31.2130.0
Sep39° / 24°31.112.20.9
Oct34° / 19°30.911.34.1
Nov26° / 14°293.510.67.9
Dec21° / 10°635.710.27.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 79% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 8% of May, with mostly cloudy or overcast conditions the remaining 13%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17723
27723
37822
47822
58020
68020
78119
88218
98317
108515
118515
128614
138713
148713
158812
168911
178911
189010
199010
209010
21919
22919
23928
24928
25937
26937
27937
28946
29946
30946
31964

Chance of precipitation in May

Any precipitation

Khūrmūj gets around 2 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 4% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
14
24
34
43
53
63
73
83
92
102
112
122
132
142
152
161
171
181
191
201
211
221
231
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 97% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19451
29541
39541
49631
59631
69631
79721
89721
99721
109721
119721
129721
139811
149811
159811
169811
179811
189811
199910
209820
219820
229820
239820
249820
259820
269820
279820
289820
299820
309730
319730

Wind in May

Winds average 9 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
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 06 min at the start of May to 13 h 42 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 5:29 AM to 5:12 AM, and sunset from 6:34 PM to 6:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.15:296:34
213.15:286:35
313.15:276:35
413.25:276:36
513.25:266:37
613.25:256:37
713.25:246:38
813.35:236:38
913.35:236:39
1013.35:226:40
1113.35:216:40
1213.35:216:41
1313.45:206:42
1413.45:196:42
1513.45:196:43
1613.45:186:43
1713.45:176:44
1813.55:176:45
1913.55:166:45
2013.55:166:46
2113.55:156:46
2213.55:156:47
2313.65:146:48
2413.65:146:48
2513.65:146:49
2613.65:136:49
2713.65:136:50
2813.65:126:50
2913.65:126:51
3013.75:126:52
3113.75:126:52

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.65 kWh/m².

For context, solar energy here swings from a low near 3.52 kWh/m² to a high of 7.84 kWh/m² in June across the year — May's 7.65 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.2Intense
27.3Intense
37.3Intense
47.3Intense
57.4Intense
67.4Intense
77.4Intense
87.5Intense
97.5Intense
107.5Intense
117.5Intense
127.6Intense
137.6Intense
147.6Intense
157.7Intense
167.7Intense
177.7Intense
187.7Intense
197.7Intense
207.8Intense
217.8Intense
227.8Intense
237.8Intense
247.8Intense
257.8Intense
267.8Intense
277.8Intense
287.9Intense
297.9Intense
307.9Intense
317.9Intense
Planning a trip in May

Hazard calendar for Khūrmūj

In seasonPeak

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

Khūrmūj 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 Khūrmūj?

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

1.7
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 Khūrmūj.

What to pack for Khūrmūj in May

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

In May, Khūrmūj sees daytime highs around 37°C and nights near 23°C. Pack light clothes and sun protection.

light clothessun protection

Sea temperature near Khūrmūj 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 25 km away) is warmest in August at about 33°C and coldest in February near 19°C.

It's comfortable for a long swim from Mar 19 to Jan 17 — about 10 months when the water holds above 20°C.

15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan20Refreshing
Feb19Cool
Mar20Cool
Apr23Refreshing
May26Warm
Jun29Tropical
Jul32Tropical
Aug33Tropical
Sep32Tropical
Oct30Tropical
Nov27Warm
Dec23Refreshing

UV index in Khūrmūj in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Khūrmūj peaks around June 19 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highHighModerateJun 19UV 10Jan 1UV 4
UV index (midday)Level
Jan4Moderate
Feb6High
Mar7High
Apr6High
May8Very high
Jun10Extreme
Jul9Very high
Aug9Very high
Sep7High
Oct7Very high
Nov5Moderate
Dec4Moderate

Air quality in Khūrmūj 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 Khūrmūj is worst in July — around 42 µg/m³ PM2.5 (poor), about 2.0× the cleanest month (November, 21 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorPoorModerateJul 1841 µg/m³Nov 2121 µg/m³
PM2.5 (µg/m³)Level
Jan27Moderate
Feb30Moderate
Mar34Moderate
Apr37Poor
May40Poor
Jun33Moderate
Jul42Poor
Aug36Poor
Sep28Moderate
Oct26Moderate
Nov21Moderate
Dec22Moderate
Location & terrain

Where is Khūrmūj?

Khūrmūj sits at 28.7°N, 51.4°E, 56 m above sea level, in Iran. The nearest listed city is Ahram, 27 km away.

Bandar-e Deyr

Topography around Khūrmūj

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

Within 3 km, the terrain around Khūrmūj has only modest variations in elevation — a maximum elevation change of 110 m around an average of 66 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,926 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,929 m.

The land around Khūrmūj is covered by bare terrain (42%), artificial surfaces (24%) and cropland (22%) within 3 km, bare terrain (67%) within 16 km, and bare terrain (47%) and water (23%) within 80 km.

3 km
110 m
16 km
1,926 m
80 km
1,929 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Ahram 27 km · ‘Ālī Shahr 43 km · Choghādak 50 km · Bushehr 63 km · Borāzjān 70 km · Farrāshband 73 km · Āb Pakhsh 84 km · Bandar-e Deyr 106 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 Khūrmūj (28.6543°, 51.38°, elevation 56 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).