Gomīshān weather in May

In May, Gomīshān sees average daytime highs of 24°C and overnight lows near 20°C, with 30 mm of rain across 5.2 wet days and about 14 hours of daylight. It is the 5th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 22°C in the first days to 26°C by the end. The sky is clear or mostly clear about 53% of the time in May, and the air most often feels humid.

Daylight stretches from about 13 h 30 min at the start of May to 14 h 18 min by month's end. Set against the rest of the year, May is Gomīshān's 6th-clearest and 7th-windiest month. For the whole year in context, see Gomīshān's year-round climate.

Daytime high
24°
5th warmest
Overnight low
20°
8th coldest
Rainfall
30 mm
5.2 wet days
Daylight
14 hours
4:51 AM – 6:49 PM
Cloud cover
42%
6th clearest
Wind
12 km/h
7th windiest
Solar energy
6.01 kWh/m²
Travel score
7.9
out of 10

Gomīshān 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 22°C in the first days to 26°C by the end.

A typical May day in Gomīshān reaches about 24°C in the afternoon and slips back to 20°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 29°C. Set against its neighbours, May runs about 4°C warmer than April and about 3°C cooler than June.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12217
22217
32217
42218
52218
62218
72318
82318
92319
102319
112319
122319
132319
142419
152420
162420
172420
182420
192420
202520
212521
222521
232521
242521
252521
262621
272622
282622
292622
302622
312622

How May really feels in Gomīshān

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.

Gomīshān weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan12° / 608.80.19.73.1
Feb12° / 628.80.510.63.3
Mar15° / 11°7210.5011.74.6
Apr20° / 15°538.1012.96.6
May24° / 20°305.20147.9
Jun27° / 24°203.7014.58.0
Jul29° / 26°245.1014.36.7
Aug30° / 27°204.5013.46.3
Sep28° / 24°486.9012.37.3
Oct23° / 19°686.40117.8
Nov17° / 14°828.70.2105.9
Dec13° / 10°5580.19.54.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 16% of May, with mostly cloudy or overcast conditions the remaining 31%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25842
35941
45941
56040
66139
76139
86238
96238
106337
116436
126436
136535
146535
156634
166634
176832
186931
197129
207129
217327
227426
237624
247624
257822
267921
277921
288119
298119
308119
318218

Chance of precipitation in May

Any precipitation

Gomīshān gets around 30 mm of rain over 5.2 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 18% and peaks near 26% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
126
225
324
423
522
621
720
820
919
1019
1119
1218
1318
1418
1518
1617
1717
1817
1917
2016
2116
2215
2315
2414
2514
2614
2713
2813
2913
3012
3112

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the humid band about 39% of days. Sticky, muggy-or-worse air turns up on roughly 35% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1243332110
2213333120
3193334130
4173236150
5153237160
6133138180
7113039191
8102940211
992841221
1082741231
1172642241
1262443252
1352343272
1442244282
1542144293
1632044303
1731944314
1821844325
1921643336
2021543346
2121442357
2211341369
23111403710
24110393811
2519383912
2618374014
2717354115
2816344217
2915324318
3015314420
3114304421

Wind in May

Winds average 12 km/h in May.

Across May, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 30 min at the start of May to 14 h 18 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 5:06 AM to 4:41 AM, and sunset from 6:36 PM to 7:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:066:36
213.55:056:37
313.65:046:38
413.65:026:39
513.65:016:40
613.75:006:40
713.74:596:41
813.74:586:42
913.84:576:43
1013.84:566:44
1113.84:556:45
1213.94:546:46
1313.94:536:47
1413.94:526:48
1513.94:516:48
1614.04:516:49
1714.04:506:50
1814.04:496:51
1914.14:486:52
2014.14:476:53
2114.14:476:53
2214.14:466:54
2314.24:456:55
2414.24:456:56
2514.24:446:57
2614.24:446:57
2714.34:436:58
2814.34:426:59
2914.34:427:00
3014.34:427:00
3114.34:417:01

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.01 kWh/m².

For context, solar energy here swings from a low near 2.22 kWh/m² to a high of 6.42 kWh/m² in June across the year — May's 6.01 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.6Bright
35.6Bright
45.6Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
176.0Bright
186.0Intense
196.0Intense
206.1Intense
216.1Intense
226.2Intense
236.2Intense
246.2Intense
256.3Intense
266.3Intense
276.3Intense
286.4Intense
296.4Intense
306.4Intense
316.4Intense
Planning a trip in May

Is May a good time to visit Gomīshān?

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
6.5
Beach & pool
5th-best month of the year

May is one of the better times to visit Gomīshān for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Gomīshān in May

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

In May, Gomīshān sees daytime highs around 24°C and nights near 20°C. Pack sun protection. Worth having: light clothes. About 5 days see rain.

sun protectionlight clothes

Sea temperature near Gomīshān in May

The nearest coast averages about 21°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 19 km away) is warmest in August at about 29°C and coldest in February near 11°C.

It's comfortable for a long swim from May 13 to Nov 6 — about 5.9 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan12Bracing
Feb11Bracing
Mar12Bracing
Apr16Cool
May21Refreshing
Jun25Warm
Jul28Warm
Aug29Tropical
Sep27Warm
Oct23Refreshing
Nov19Cool
Dec15Bracing

UV index in Gomīshān 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 Gomīshān peaks around July 18 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 18UV 10Dec 22UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr6High
May7Very high
Jun7Very high
Jul10Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Gomīshān 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 Gomīshān is worst in September — around 29 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 2029 µg/m³Jul 1519 µg/m³
PM2.5 (µg/m³)Level
Jan23Moderate
Feb23Moderate
Mar25Moderate
Apr25Moderate
May22Moderate
Jun21Moderate
Jul19Moderate
Aug22Moderate
Sep29Moderate
Oct27Moderate
Nov25Moderate
Dec23Moderate
Location & terrain

Where is Gomīshān?

Gomīshān sits at 37.1°N, 54.1°E, -23 m above sea level, in Iran. The nearest listed city is Sīmīn Shahr, 15 km away.

Topography around Gomīshān

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

Within 3 km, the terrain around Gomīshān has only modest variations in elevation — a maximum elevation change of 5 m around an average of -25 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 13 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,837 m.

The land around Gomīshān is covered by cropland (49%) and bare terrain (31%) within 3 km, cropland (43%), bare terrain (20%) and water (20%) within 16 km, and water (29%), bare terrain (22%) and cropland (21%) within 80 km.

3 km
5 m
16 km
13 m
80 km
3,837 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Sīmīn Shahr 15 km · Bandar-e Torkaman 19 km · Kord Kūy 31 km · Āq Qalā 34 km · Bandar-e Gaz 35 km · Gorgān 41 km · Galūgāh 45 km · Fāẕelābād 63 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 Gomīshān (37.0718°, 54.0765°, elevation -23 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).