Mehestan weather in May

In May, Mehestan sees average daytime highs of 23°C and overnight lows near 12°C, with 19 mm of rain across 4.7 wet days and about 13.9 hours of daylight. It is the 5th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 19°C in the first days to 26°C by the end. The sky is clear or mostly clear about 59% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 24 min at the start of May to 14 h 12 min by month's end. Set against the rest of the year, May is Mehestan's 6th-clearest and 4th-windiest month. For the whole year in context, see Mehestan's year-round climate.

Daytime high
23°
5th warmest
Overnight low
12°
8th coldest
Rainfall
19 mm
4.7 wet days
Daylight
13 h 54 min
5:06 AM – 7:00 PM
Cloud cover
37%
6th clearest
Wind
8 km/h
4th windiest
Solar energy
7.22 kWh/m²
Travel score
7.9
out of 10

Mehestan is city in Alborz 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 19°C in the first days to 26°C by the end.

A typical May day in Mehestan reaches about 23°C in the afternoon and slips back to 12°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 26°C. Set against its neighbours, May runs about 7°C warmer than April and about 7°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1199
2199
31910
42010
52010
62010
72010
82110
92111
102111
112111
122211
132211
142212
152212
162312
172312
182312
192312
202413
212413
222413
232413
242513
252514
262514
272514
282614
292614
302615
312615

How May really feels in Mehestan

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.

Mehestan 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 daysSnow daysDaylight (hours)Travel score
Jan / -6°356.65.79.80.0
Feb / -5°427.95.410.60.2
Mar10° / 539.33.611.72.4
Apr16° / 478.90.612.95.4
May23° / 12°194.7013.97.9
Jun29° / 17°41014.47.1
Jul33° / 20°20.7014.25.0
Aug32° / 19°30.5013.45.7
Sep27° / 15°20.6012.28.6
Oct20° / 143.1011.17.8
Nov11° / 356.11.410.13.2
Dec / -3°346.84.39.60.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 59% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 20% of May, with mostly cloudy or overcast conditions the remaining 22%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16634
26733
36832
46832
56832
66931
77030
87030
97228
107228
117426
127525
137624
147723
157822
167921
178020
188119
198218
208317
218416
228515
238515
248614
258713
268713
278713
288812
298812
309010
319010

Chance of precipitation in May

Any precipitation

Mehestan gets around 19 mm of rain over 4.7 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 15% and peaks near 25% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
125
224
324
423
522
622
721
820
920
1019
1119
1218
1317
1417
1516
1615
1714
1814
1913
2012
2112
2211
2310
2410
259
269
278
288
297
307
316

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in May

Winds average 8 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 24 min at the start of May to 14 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over May. Sunrise moves from 5:21 AM to 4:57 AM, and sunset from 6:48 PM to 7:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:216:48
213.55:206:48
313.55:196:49
413.55:186:50
513.65:176:51
613.65:156:52
713.65:146:53
813.75:136:54
913.75:126:54
1013.75:126:55
1113.85:116:56
1213.85:106:57
1313.85:096:58
1413.85:086:59
1513.95:076:59
1613.95:067:00
1713.95:057:01
1814.05:057:02
1914.05:047:03
2014.05:037:03
2114.05:037:04
2214.15:027:05
2314.15:017:06
2414.15:017:07
2514.15:007:07
2614.15:007:08
2714.24:597:09
2814.24:597:10
2914.24:587:10
3014.24:587:11
3114.24:577:12

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.22 kWh/m².

For context, solar energy here swings from a low near 2.75 kWh/m² to a high of 7.89 kWh/m² in June across the year — May's 7.22 kWh/m² falls in the middle.

02468151015202531
Solar energy (kWh/m²)Level
16.8Intense
26.8Intense
36.8Intense
46.9Intense
56.9Intense
66.9Intense
76.9Intense
87.0Intense
97.0Intense
107.0Intense
117.1Intense
127.1Intense
137.1Intense
147.2Intense
157.2Intense
167.2Intense
177.3Intense
187.3Intense
197.3Intense
207.4Intense
217.4Intense
227.4Intense
237.5Intense
247.5Intense
257.5Intense
267.5Intense
277.6Intense
287.6Intense
297.6Intense
307.7Intense
317.7Intense
Planning a trip in May

Is May a good time to visit Mehestan?

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

7.9
Sightseeing
2nd-best month of the year
5.8
Beach & pool
5th-best month of the year

May is one of the better times to visit Mehestan for general sightseeing.

What to pack for Mehestan in May

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

In May, Mehestan sees daytime highs around 23°C and nights near 12°C. Pack sun protection. Worth having: light clothes. About 5 days see rain.

sun protectionlight clothes

UV index in Mehestan in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mehestan peaks around July 18 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highExtremeVery highHighModerateJul 18UV 11Jan 11UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar5Moderate
Apr7Very high
May10Very high
Jun10Extreme
Jul11Extreme
Aug10Extreme
Sep8Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Mehestan 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 Mehestan is worst in December — around 170 µg/m³ PM2.5 (very unhealthy), about 3.3× the cleanest month (July, 51 µg/m³).

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

0306090120150180JanFebMarAprMayJunJulAugSepOctNovDecVery unhealthyUnhealthyPoorUnhealthyVery unhealthyDec 23169 µg/m³Jul 1852 µg/m³
PM2.5 (µg/m³)Level
Jan167Very unhealthy
Feb149Unhealthy
Mar116Unhealthy
Apr104Unhealthy
May85Unhealthy
Jun61Unhealthy
Jul51Poor
Aug58Unhealthy
Sep74Unhealthy
Oct102Unhealthy
Nov135Unhealthy
Dec170Very unhealthy
Location & terrain

Where is Mehestan?

Mehestan sits at 36.0°N, 50.7°E, 1,521 m above sea level, in Iran. The nearest listed city is Hashtgerd, 7.0 km away.

Topography around Mehestan

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

Within 3 km, the terrain around Mehestan has significant variations in elevation — a maximum elevation change of 288 m around an average of 1,499 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,096 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,583 m.

The land around Mehestan is covered by grassland (28%), bare terrain (27%) and artificial surfaces (25%) within 3 km, grassland (45%) within 16 km, and grassland (41%), bare terrain (22%) and cropland (20%) within 80 km.

3 km
288 m
16 km
2,096 m
80 km
4,583 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
May weather nearby: Hashtgerd 7.0 km · Naz̧arābād 13 km · Kamālshahr 18 km · Ābyek 20 km · Ābyek 20 km · Karaj 28 km · Moḩammad Shahr 30 km · Māhdāsht 30 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 Mehestan (35.9891°, 50.7451°, elevation 1,521 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).