Rasht weather in May

In May, Rasht sees average daytime highs of 23°C and overnight lows near 15°C, with 56 mm of rain across 9.5 wet days and about 14 hours of daylight. It is the 5th-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 21°C in the first days to 25°C by the end. The sky is clear or mostly clear about 33% of the time in May, and the air most often feels comfortable.

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 Rasht's 6th-clearest and 10th-windiest month. For the whole year in context, see Rasht's year-round climate.

Daytime high
23°
5th warmest
Overnight low
15°
8th coldest
Rainfall
56 mm
9.5 wet days
Daylight
14 hours
5:08 AM – 7:08 PM
Cloud cover
58%
6th clearest
Wind
6 km/h
10th windiest
Solar energy
5.74 kWh/m²
Travel score
6.8
out of 10

Rasht is city in Gilan Province, Iran.

Air quality
Elevated
PM2.5 20.5 µg/m³ · 2016
Density
3,303/km²
people per km²

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 21°C in the first days to 25°C by the end.

A typical May day in Rasht reaches about 23°C in the afternoon and slips back to 15°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 27°C. Set against its neighbours, May runs about 4°C warmer than April and about 4°C cooler than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12012
22013
32113
42113
52113
62113
72113
82114
92214
102214
112214
122214
132214
142315
152315
162315
172315
182315
192315
202415
212415
222416
232416
242416
252416
262416
272516
282516
292517
302517
312517

Rasht weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan11° / 12512.62.39.72.6
Feb11° / 12212.43.210.62.7
Mar15° / 11814.40.911.73.9
Apr18° / 10°8812.9012.95.4
May23° / 15°569.50146.8
Jun27° / 19°718014.57.1
Jul29° / 21°828.5014.36.0
Aug29° / 21°10910.6013.45.7
Sep25° / 18°18914.4012.36.0
Oct22° / 14°22215.40115.8
Nov17° / 20114.10.4104.7
Dec13° / 13612.319.53.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% 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 51%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13862
23961
33961
44060
54060
64060
74258
84258
94357
104357
114357
124357
134555
144555
154555
164654
174753
184951
194951
205149
215248
225347
235545
245644
255743
265842
275941
286040
296139
306139
316238

Chance of precipitation in May

Any precipitation

Rasht gets around 56 mm of rain over 9.5 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 32% and peaks near 40% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
140
239
338
437
537
636
736
835
935
1035
1134
1234
1334
1434
1533
1633
1733
1832
1932
2031
2130
2229
2328
2428
2527
2626
2726
2826
2925
3025
3125

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the comfortable band about 39% of days. Sticky, muggy-or-worse air turns up on roughly 9% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
144411500
241421600
338441810
435451910
533462110
630462310
728472410
826472610
924472820
1022472920
1120463120
1219463230
1317453430
1416453540
1515443640
1614433850
1713433960
1812414070
1910404180
209394290
2183743111
2283643131
2373544141
2463344161
2553244181
2643044201
2742944221
2832845241
2932645251
3022545271
3122445281

Wind in May

Winds average 6 km/h in May.

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

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

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
213.55:226:55
313.65:216:56
413.65:206:57
513.75:196:58
613.75:186:59
713.75:177:00
813.75:167:01
913.85:157:02
1013.85:147:02
1113.85:137:03
1213.95:127:04
1313.95:117:05
1413.95:107:06
1514.05:097:07
1614.05:087:08
1714.05:077:09
1814.05:067:09
1914.15:067:10
2014.15:057:11
2114.15:047:12
2214.25:047:13
2314.25:037:14
2414.25:027:14
2514.25:027:15
2614.25:017:16
2714.35:007:17
2814.35:007:17
2914.34:597:18
3014.34:597:19
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 5.74 kWh/m².

For context, solar energy here swings from a low near 2.04 kWh/m² to a high of 6.21 kWh/m² in June across the year — May's 5.74 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.3Bright
35.3Bright
45.3Bright
55.4Bright
65.4Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.6Bright
125.6Bright
135.6Bright
145.7Bright
155.7Bright
165.7Bright
175.7Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.9Bright
235.9Bright
245.9Bright
256.0Bright
266.0Intense
276.0Intense
286.0Intense
296.1Intense
306.1Intense
316.1Intense
Planning a trip in May

Is May a good time to visit Rasht?

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

6.8
Sightseeing
2nd-best month of the year
5.1
Beach & pool
5th-best month of the year

May is a reasonable time to visit Rasht for sightseeing.

What to pack for Rasht in May

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

In May, Rasht sees daytime highs around 23°C and nights near 15°C. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

Sea temperature near Rasht 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 39 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 Rasht 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 Rasht 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 Rasht 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 Rasht is worst in March — around 26 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (July, 14 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Rasht's WHO annual average of 20.5 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1825 µg/m³Jul 1314 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb21Moderate
Mar26Moderate
Apr22Moderate
May21Moderate
Jun16Moderate
Jul14Moderate
Aug19Moderate
Sep24Moderate
Oct22Moderate
Nov21Moderate
Dec19Moderate
Location & terrain

Where is Rasht?

Rasht sits at 37.3°N, 49.6°E, 4 m above sea level, in Iran. The nearest listed city is Khomām, 14 km away.

Topography around Rasht

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

Within 3 km, the terrain around Rasht has only modest variations in elevation — a maximum elevation change of 26 m around an average of -1 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 375 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,110 m.

The land around Rasht is covered by artificial surfaces (89%) within 3 km, cropland (50%) and trees (24%) within 16 km, and water (34%), trees (27%) and grassland (23%) within 80 km.

3 km
26 m
16 km
375 m
80 km
3,110 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Khomām 14 km · Şowme‘eh Sarā 24 km · Bandar-e Anzalī 25 km · Fūman 25 km · Sīāhkal 29 km · Āstāneh-ye Ashrafīyeh 31 km · Lāhījān 38 km · Māsāl 41 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 Rasht (37.2761°, 49.5886°, elevation 4 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).