Kalāleh weather in May

In May, Kalāleh sees average daytime highs of 28°C and overnight lows near 16°C, with 31 mm of rain across 5 wet days and about 14 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 25°C in the first days to 30°C by the end. The sky is clear or mostly clear about 51% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 30 min at the start of May to 14 h 24 min by month's end. Set against the rest of the year, May is Kalāleh's 8th-clearest and 9th-windiest month. For the whole year in context, see Kalāleh's year-round climate.

Daytime high
28°
5th warmest
Overnight low
16°
8th coldest
Rainfall
31 mm
5 wet days
Daylight
14 hours
4:44 AM – 6:44 PM
Cloud cover
43%
8th clearest
Wind
7 km/h
9th windiest
Solar energy
6.31 kWh/m²
Travel score
6.9
out of 10

Kalāleh is city in Golestan 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 25°C in the first days to 30°C by the end.

A typical May day in Kalāleh reaches about 28°C in the afternoon and slips back to 16°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 34°C. Set against its neighbours, May runs about 6°C warmer than April and about 5°C cooler than June.

10°20°30°40°151015202531
Avg high (°C)Avg low (°C)
12413
22513
32513
42514
52514
62614
72614
82614
92615
102615
112715
122715
132715
142715
152716
162816
172816
182816
192816
202816
212917
222917
232917
242917
253017
263017
273018
283018
293118
303118
313118

How May really feels in Kalāleh

Once humidity and wind are folded in, May averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Kalāleh weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan12° / 426.22.39.73.5
Feb13° / 557.72.710.63.9
Mar17° / 668.61.311.75.6
Apr22° / 11°547.4012.97.1
May28° / 16°3150146.9
Jun33° / 20°183.4014.54.4
Jul35° / 23°224.5014.33.0
Aug35° / 23°274.6013.43.2
Sep31° / 19°283.9012.35.5
Oct25° / 13°274.20118.2
Nov18° / 365.30.3106.7
Dec14° / 285.40.99.54.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 34%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25446
35446
45545
55545
65644
75743
85842
95842
105941
116139
126139
136238
146337
156436
166535
176634
186733
196931
207030
217129
227228
237327
247426
257525
267723
277723
287822
297822
307921
317921

Chance of precipitation in May

Any precipitation

Kalāleh gets around 31 mm of rain over 5 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 17% and peaks near 23% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
123
222
321
420
520
619
719
818
918
1018
1118
1218
1318
1418
1518
1618
1718
1817
1917
2017
2116
2216
2315
2415
2514
2614
2713
2813
2912
3012
3111

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 47% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1722440
2692650
3662860
4643060
5613270
6583480
7563680
8543790
95139100
105040100
114842100
124743110
134644110
144544110
154445110
164346110
174246110
184247110
194247110
204147110
214147120
224047120
234047130
243947140
253847151
263746161
273645171
283545191
293444202
303343212
313243233

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 30 min at the start of May to 14 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over May. Sunrise moves from 5:00 AM to 4:35 AM, and sunset from 6:31 PM to 6:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:006:31
213.64:586:32
313.64:576:33
413.64:566:34
513.74:556:34
613.74:546:35
713.74:536:36
813.84:526:37
913.84:516:38
1013.84:506:39
1113.94:496:40
1213.94:486:41
1313.94:476:42
1413.94:466:43
1514.04:456:43
1614.04:446:44
1714.04:436:45
1814.14:436:46
1914.14:426:47
2014.14:416:48
2114.14:406:49
2214.24:406:49
2314.24:396:50
2414.24:386:51
2514.24:386:52
2614.34:376:53
2714.34:376:53
2814.34:366:54
2914.34:366:55
3014.34:356:56
3114.44:356:56

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.31 kWh/m².

For context, solar energy here swings from a low near 2.34 kWh/m² to a high of 6.89 kWh/m² in June across the year — May's 6.31 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.9Bright
45.9Bright
55.9Bright
66.0Bright
76.0Bright
86.0Intense
96.0Intense
106.1Intense
116.1Intense
126.1Intense
136.2Intense
146.2Intense
156.2Intense
166.3Intense
176.3Intense
186.3Intense
196.3Intense
206.4Intense
216.4Intense
226.5Intense
236.5Intense
246.5Intense
256.6Intense
266.6Intense
276.7Intense
286.7Intense
296.7Intense
306.8Intense
316.8Intense
Planning a trip in May

Is May a good time to visit Kalāleh?

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

6.9
Sightseeing
3rd-best month of the year
7.5
Beach & pool
3rd-best month of the year

May is a reasonable time to visit Kalāleh for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Kalāleh in May

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

In May, Kalāleh sees daytime highs around 28°C and nights near 16°C. Pack light clothes and sun protection. About 5 days see rain.

light clothessun protection

UV index in Kalāleh 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 Kalāleh peaks around July 17 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 17UV 11Jan 10UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5High
Apr7High
May8Very high
Jun9Very high
Jul11Extreme
Aug9Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec3Moderate

Air quality in Kalāleh 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 Kalāleh is worst in September — around 34 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 1933 µg/m³Jan 1421 µg/m³
PM2.5 (µg/m³)Level
Jan21Moderate
Feb22Moderate
Mar25Moderate
Apr26Moderate
May25Moderate
Jun24Moderate
Jul26Moderate
Aug27Moderate
Sep34Moderate
Oct31Moderate
Nov25Moderate
Dec22Moderate
Location & terrain

Where is Kalāleh?

Kalāleh sits at 37.4°N, 55.5°E, 152 m above sea level, in Iran. The nearest listed city is Gālīkesh, 13 km away.

Āq Qalā

Topography around Kalāleh

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

Within 3 km, the terrain around Kalāleh has significant variations in elevation — a maximum elevation change of 311 m around an average of 177 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,606 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,957 m.

The land around Kalāleh is covered by cropland (70%) and artificial surfaces (20%) within 3 km, cropland (61%) and trees (26%) within 16 km, and grassland (37%), bare terrain (26%) and cropland (22%) within 80 km.

3 km
311 m
16 km
1,606 m
80 km
2,957 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
May weather nearby: Gālīkesh 13 km · Mīnūdasht 20 km · Gonbad-e Kāvūs 32 km · Āzādshahr 43 km · 'Alī Ābād-e Katūl 76 km · Fāẕelābād 85 km · Jājarm 92 km · Āq Qalā 101 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 Kalāleh (37.379°, 55.493°, elevation 152 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).