Khomām weather in May

In May, Khomām sees average daytime highs of 20°C and overnight lows near 17°C, with 24 mm of rain across 4.9 wet days and about 14 hours of daylight. It is the 6th-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 18°C in the first days to 23°C by the end. The sky is clear or mostly clear about 48% 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 24 min by month's end. Set against the rest of the year, May is Khomām's 5th-clearest and 11th-windiest month. For the whole year in context, see Khomām's year-round climate.

Daytime high
20°
6th warmest
Overnight low
17°
7th coldest
Rainfall
24 mm
4.9 wet days
Daylight
14 hours
5:08 AM – 7:08 PM
Cloud cover
46%
5th clearest
Wind
11 km/h
11th windiest
Solar energy
5.95 kWh/m²
Travel score
7.2
out of 10

Khomām is city in Gilan 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 18°C in the first days to 23°C by the end.

A typical May day in Khomām reaches about 20°C in the afternoon and slips back to 17°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 23°C. Set against its neighbours, May runs about 5°C warmer than April and about 5°C cooler than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
11715
21715
31815
41815
51815
61816
71816
81916
91916
101916
111916
121917
132017
142017
152017
162017
172018
182118
192118
202118
212118
222118
232219
242219
252219
262219
272219
282220
292320
302320
312320

Khomām weather by month

How May compares with the rest of the year at a glance. May is the 6th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan11° / 10611.40.59.72.7
Feb10° / 9210.60.710.62.4
Mar12° / 7710.80.111.73.1
Apr15° / 12°497.6012.94.9
May20° / 17°244.90147.2
Jun25° / 22°294.7014.58.2
Jul28° / 25°385.7014.37.4
Aug28° / 25°527.8013.46.8
Sep25° / 23°13111.7012.36.8
Oct22° / 19°17213.60116.2
Nov17° / 14°17714.10.1104.9
Dec13° / 10°11711.40.29.53.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 19% of May, with mostly cloudy or overcast conditions the remaining 33%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25446
35545
45644
55644
65842
75842
85941
96040
106040
116139
126238
136436
146436
156535
166634
176832
186832
196931
207129
217228
227426
237426
247624
257723
267822
277921
287921
298020
308119
318218

Chance of precipitation in May

Any precipitation

Khomām gets around 24 mm of rain over 4.9 wet days in May, the driest month. 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 21% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
121
220
320
419
519
618
718
818
917
1017
1117
1217
1317
1417
1517
1617
1717
1817
1917
2017
2116
2216
2316
2415
2515
2615
2715
2815
2914
3014
3114

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 36% of days. Sticky, muggy-or-worse air turns up on roughly 20% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
138481300
235491610
332491810
429492020
526492320
624482530
721482840
819463050
917453260
1015433570
1114413780
1213403990
13123840110
14113642120
15103443140
1693244150
1783044170
1872945190
1972745210
2062545231
2152345251
2252245272
2342044292
2441943323
2541742343
2631641364
2731540385
2821439395
2921338416
3021237427
3111136438

Wind in May

Winds average 11 km/h in May.

Across May, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

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 5:23 AM to 4:58 AM, and sunset from 6:54 PM to 7:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:236:54
213.65:226:55
313.65:216:56
413.65:196:57
513.75:186:58
613.75:176:59
713.75:167:00
813.85:157:01
913.85:147:01
1013.85:137:02
1113.95:127:03
1213.95:117:04
1313.95:107:05
1413.95:097:06
1514.05:087:07
1614.05:087:08
1714.05:077:09
1814.15:067:09
1914.15:057:10
2014.15:047:11
2114.15:047:12
2214.25:037:13
2314.25:027:14
2414.25:027:14
2514.25:017:15
2614.35:007:16
2714.35:007:17
2814.34:597:17
2914.34:597:18
3014.34:587:19
3114.44:587:20

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.95 kWh/m².

For context, solar energy here swings from a low near 1.91 kWh/m² to a high of 6.44 kWh/m² in June across the year — May's 5.95 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.5Bright
35.5Bright
45.5Bright
55.6Bright
65.6Bright
75.7Bright
85.7Bright
95.7Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.9Bright
155.9Bright
165.9Bright
176.0Bright
186.0Bright
196.0Intense
206.0Intense
216.1Intense
226.1Intense
236.1Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.3Intense
296.3Intense
306.3Intense
316.3Intense
Planning a trip in May

Hazard calendar for Khomām

In seasonPeak

None of Khomām's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Khomām's rainy season runs September–February, when most of the year's rain falls.

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

Is May a good time to visit Khomām?

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

7.2
Sightseeing
3rd-best month of the year
3.9
Beach & pool
6th-best month of the year

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

What to pack for Khomām in May

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

In May, Khomām sees daytime highs around 20°C and nights near 17°C. Worth packing: sun protection. About 5 days see rain.

sun protection

Sea temperature near Khomām in May

The nearest coast averages about 19°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 26 km away) is warmest in August at about 28°C and coldest in February near 10°C.

It's comfortable for a long swim from May 22 to Nov 3 — about 5.5 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan12Bracing
Feb10Bracing
Mar11Bracing
Apr13Bracing
May19Cool
Jun24Warm
Jul27Warm
Aug28Warm
Sep26Warm
Oct23Refreshing
Nov18Cool
Dec15Bracing

UV index in Khomām 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 Khomām peaks around July 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 12 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 9Jan 12UV 2
UV index (midday)Level
Jan2Low
Feb4Moderate
Mar4Moderate
Apr6High
May8Very high
Jun8Very high
Jul9Very high
Aug8Very high
Sep6High
Oct5Moderate
Nov3Moderate
Dec2Moderate

Air quality in Khomām 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 Khomām is worst in March — around 27 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (July, 14 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1826 µg/m³Jul 1315 µg/m³
PM2.5 (µg/m³)Level
Jan21Moderate
Feb21Moderate
Mar27Moderate
Apr23Moderate
May21Moderate
Jun17Moderate
Jul14Moderate
Aug20Moderate
Sep25Moderate
Oct23Moderate
Nov21Moderate
Dec20Moderate
Location & terrain

Where is Khomām?

Khomām sits at 37.4°N, 49.7°E, -15 m above sea level, in Iran. The nearest listed city is Rasht, 14 km away.

Topography around Khomām

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

Within 3 km, the terrain around Khomām has only modest variations in elevation — a maximum elevation change of 22 m around an average of -18 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 38 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,110 m.

The land around Khomām is covered by cropland (56%) within 3 km, cropland (45%) and water (22%) within 16 km, and water (45%) and trees (26%) within 80 km.

3 km
22 m
16 km
38 m
80 km
3,110 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Rasht 14 km · Bandar-e Anzalī 20 km · Āstāneh-ye Ashrafīyeh 29 km · Şowme‘eh Sarā 32 km · Sīāhkal 32 km · Fūman 36 km · Lāhījān 37 km · Māsāl 47 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 Khomām (37.3902°, 49.6585°, elevation -15 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).