Āstārā weather in May

In May, Āstārā sees average daytime highs of 20°C and overnight lows near 14°C, with 67 mm of precipitation across 12.2 wet days and about 14.1 hours of daylight. It is the 5th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 17°C in the first days to 22°C by the end. The sky is clear or mostly clear about 22% of the time in May, and the air most often feels comfortable.

Daylight stretches from about 13 h 36 min at the start of May to 14 h 30 min by month's end. Set against the rest of the year, May is Āstārā's 5th-clearest and 7th-windiest month. For the whole year in context, see Āstārā's year-round climate.

Daytime high
20°
5th warmest
Overnight low
14°
8th coldest
Precipitation
67 mm
12.2 wet days
Daylight
14 h 06 min
5:08 AM – 7:13 PM
Cloud cover
63%
5th clearest
Wind
6 km/h
7th windiest
Solar energy
5.99 kWh/m²
Travel score
5.9
out of 10

Āstārā 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 17°C in the first days to 22°C by the end.

A typical May day in Āstārā reaches about 20°C in the afternoon and slips back to 14°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 24°C. Set against its neighbours, May runs about 5°C warmer than April and about 4°C cooler than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
11712
21712
31712
41812
51812
61813
71813
81913
91913
101913
111914
121914
131914
142014
152014
162014
172015
182015
192115
202115
212115
222115
232116
242116
252216
262216
272216
282216
292216
302217
312317

How May really feels in Āstārā

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.

Āstārā 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
Jan / 11014.35.99.60.7
Feb / 10612.8710.50.8
Mar10° / 9913.65.911.72.2
Apr15° / 7913.51.7134.0
May20° / 14°6712.20.114.15.9
Jun24° / 19°377014.67.7
Jul27° / 21°334.9014.47.9
Aug27° / 21°506.1013.57.7
Sep23° / 17°12511.7012.36.6
Oct18° / 13°18815.70.7115.1
Nov13° / 17616.33.19.93.0
Dec / 12214.85.19.41.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% 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 59%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13169
23169
33268
43367
53367
63367
73367
83466
93466
103565
113664
123664
133664
143862
153961
163961
174060
184060
194357
204357
214456
224654
234753
244852
254852
265149
275149
285248
295347
305446
315644

Chance of precipitation in May

Any precipitationSnow

Āstārā gets around 67 mm of rain and snow over 12.2 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 40% and peaks near 46% on the wettest days, and about 0 day brings snow. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
1463
2453
3452
4452
5442
6441
7441
8431
9431
10431
11420
12420
13410
14410
15410
16400
17400
18400
19390
20380
21380
22370
23360
24360
25350
26350
27340
28340
29330
30330
31320

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 40% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1702820
2673030
3653230
4623440
5593650
6563860
7534070
8514180
94743100
104444111
114245131
123946141
133746161
143546181
153346191
163146211
172946232
182845252
192645273
202444293
212343314
222142324
232041345
241840366
251739377
261538388
271437409
281337419
2912364110
3011354211
3110354312

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 36 min at the start of May to 14 h 30 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 5:24 AM to 4:58 AM, and sunset from 6:59 PM to 7:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.65:246:59
213.65:237:00
313.75:227:01
413.75:217:02
513.75:207:03
613.85:187:04
713.85:177:05
813.85:167:06
913.95:157:07
1013.95:147:08
1113.95:137:09
1214.05:127:10
1314.05:117:10
1414.05:107:11
1514.15:097:12
1614.15:087:13
1714.15:077:14
1814.15:077:15
1914.25:067:16
2014.25:057:17
2114.25:047:18
2214.25:047:18
2314.35:037:19
2414.35:027:20
2514.35:027:21
2614.35:017:22
2714.45:007:23
2814.45:007:23
2914.44:597:24
3014.44:597:25
3114.54:587:26

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.99 kWh/m².

For context, solar energy here swings from a low near 1.9 kWh/m² to a high of 6.66 kWh/m² in July across the year — May's 5.99 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.6Bright
35.6Bright
45.6Bright
55.7Bright
65.7Bright
75.7Bright
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.9Bright
145.9Bright
155.9Bright
166.0Bright
176.0Bright
186.0Intense
196.0Intense
206.1Intense
216.1Intense
226.1Intense
236.2Intense
246.2Intense
256.2Intense
266.3Intense
276.3Intense
286.3Intense
296.3Intense
306.4Intense
316.4Intense
Planning a trip in May

Hazard calendar for Āstārā

In seasonPeak

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

Āstārā's rainy season runs September–March, 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 Āstārā?

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

5.9
Sightseeing
5th-best month of the year
3.1
Beach & pool
5th-best month of the year

May is a reasonable time to visit Āstārā for sightseeing.

What to pack for Āstārā in May

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

In May, Āstārā sees daytime highs around 20°C and nights near 14°C. Worth packing: rain gear and sun protection. About 12 days see rain.

rain gearsun protection

Sea temperature near Āstārā 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 offshore is warmest in August at about 28°C and coldest in February near 9°C.

It's comfortable for a long swim from May 25 to Oct 31 — about 5.3 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan11Bracing
Feb9Bracing
Mar10Bracing
Apr13Bracing
May19Cool
Jun24Refreshing
Jul27Warm
Aug28Warm
Sep26Warm
Oct22Refreshing
Nov18Cool
Dec14Bracing

UV index in Āstārā 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 Āstārā peaks around July 20 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 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 20UV 9Dec 17UV 2
UV index (midday)Level
Jan3Moderate
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug9Very high
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Āstārā 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 Āstārā is worst in March — around 22 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2122 µg/m³Jul 1314 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb16Moderate
Mar22Moderate
Apr21Moderate
May20Moderate
Jun16Moderate
Jul14Moderate
Aug18Moderate
Sep20Moderate
Oct18Moderate
Nov16Moderate
Dec14Moderate
Location & terrain

Where is Āstārā?

Āstārā sits at 38.4°N, 48.9°E, -22 m above sea level, in Iran. The nearest listed city is Astara, 3.0 km away.

Topography around Āstārā

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

Within 3 km, the terrain around Āstārā has only modest variations in elevation — a maximum elevation change of 14 m around an average of -24 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,326 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,246 m.

The land around Āstārā is covered by water (31%), artificial surfaces (26%) and cropland (22%) within 3 km, water (48%) and trees (35%) within 16 km, and water (48%) within 80 km.

3 km
14 m
16 km
1,326 m
80 km
3,246 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Astara 3.0 km · Lankaran 36 km · Ardabīl 54 km · Lerik 55 km · Hashtpar 71 km · Jalilabad 93 km · Germī 95 km · Khalkhāl 95 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 Āstārā (38.4308°, 48.8699°, elevation -22 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).