Surian weather in May

In May, Surian sees average daytime highs of 27°C and overnight lows near 14°C, with 11 mm of rain across 3.2 wet days and about 13.5 hours of daylight. It is the 5th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 24°C in the first days to 30°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 12 min at the start of May to 13 h 48 min by month's end. Set against the rest of the year, May is Surian's 11th-clearest and 7th-windiest month. For the whole year in context, see Surian's year-round climate.

Daytime high
27°
5th warmest
Overnight low
14°
8th coldest
Rainfall
11 mm
3.2 wet days
Daylight
13 h 30 min
5:06 AM – 6:38 PM
Cloud cover
36%
11th clearest
Wind
10 km/h
7th windiest
Solar energy
7.67 kWh/m²
Travel score
7.7
out of 10

Surian is city in Fars 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 24°C in the first days to 30°C by the end.

A typical May day in Surian reaches about 27°C in the afternoon and slips back to 14°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 30°C. Set against its neighbours, May runs about 6°C warmer than April and about 5°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12412
22412
32412
42512
52512
62512
72513
82513
92613
102613
112613
122613
132614
142714
152714
162714
172715
182715
192815
202815
212815
222816
232816
242916
252916
262916
272916
282917
293017
303017
313017

How May really feels in Surian

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.

Surian 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 / -2°224.21.910.32.4
Feb12° / 173.60.910.93.9
Mar16° / 235.10.211.86.0
Apr21° / 215.4012.77.4
May27° / 14°113.2013.57.7
Jun32° / 19°20.2013.95.3
Jul34° / 22°00.1013.84.3
Aug32° / 20°00.1013.15.4
Sep29° / 16°00.1012.27.5
Oct23° / 10°51.3011.39.0
Nov16° / 122.70.110.56.3
Dec12° / 162.90.810.13.8

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 (%)
16931
26931
36931
47030
57030
67129
77129
87228
97228
107327
117426
127525
137624
147624
157723
167723
177921
187921
198119
208218
218218
228317
238416
248515
258614
268614
278812
288812
298911
309010
319010

Chance of precipitation in May

Any precipitation

Surian gets around 11 mm of rain over 3.2 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 10% and peaks near 17% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
117
217
317
417
517
616
716
815
914
1014
1113
1212
1311
1410
159
168
178
187
197
206
216
225
235
245
254
264
274
283
293
303
313

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 10 km/h in May.

Across May, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 12 min at the start of May to 13 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over May. Sunrise moves from 5:18 AM to 4:59 AM, and sunset from 6:28 PM to 6:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.25:186:28
213.25:176:28
313.25:166:29
413.25:156:30
513.35:146:30
613.35:136:31
713.35:126:32
813.35:116:32
913.45:116:33
1013.45:106:34
1113.45:096:34
1213.45:086:35
1313.55:086:36
1413.55:076:36
1513.55:066:37
1613.55:066:38
1713.65:056:38
1813.65:046:39
1913.65:046:40
2013.65:036:40
2113.65:036:41
2213.75:026:42
2313.75:026:42
2413.75:016:43
2513.75:016:43
2613.75:006:44
2713.75:006:45
2813.85:006:45
2913.84:596:46
3013.84:596:46
3113.84:596:47

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.67 kWh/m².

For context, solar energy here swings from a low near 3.61 kWh/m² to a high of 8 kWh/m² in June across the year — May's 7.67 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.3Intense
27.3Intense
37.3Intense
47.3Intense
57.4Intense
67.4Intense
77.4Intense
87.5Intense
97.5Intense
107.5Intense
117.5Intense
127.6Intense
137.6Intense
147.6Intense
157.7Intense
167.7Intense
177.7Intense
187.7Intense
197.8Intense
207.8Intense
217.8Intense
227.8Intense
237.9Intense
247.9Intense
257.9Intense
267.9Intense
277.9Intense
288.0Intense
298.0Intense
308.0Intense
318.0Intense
Planning a trip in May

Is May a good time to visit Surian?

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

7.7
Sightseeing
2nd-best month of the year
8.0
Beach & pool
5th-best month of the year

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

What to pack for Surian in May

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

In May, Surian sees daytime highs around 27°C and nights near 14°C. Pack light clothes and sun protection. About 3 days see rain.

light clothessun protection

UV index in Surian in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Surian peaks around July 16 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 16UV 12Jan 1UV 4
UV index (midday)Level
Jan4Moderate
Feb7High
Mar8Very high
Apr9Very high
May11Extreme
Jun12Extreme
Jul12Extreme
Aug11Extreme
Sep10Very high
Oct8Very high
Nov5High
Dec4Moderate

Air quality in Surian 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 Surian is worst in April — around 32 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (November, 13 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1931 µg/m³Nov 2113 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb22Moderate
Mar25Moderate
Apr32Moderate
May29Moderate
Jun19Moderate
Jul24Moderate
Aug17Moderate
Sep20Moderate
Oct18Moderate
Nov13Moderate
Dec14Moderate
Location & terrain

Where is Surian?

Surian sits at 30.5°N, 53.7°E, 2,182 m above sea level, in Iran. The nearest listed city is Şafāshahr, 47 km away.

EqlīdMarvdashtZarqān

Topography around Surian

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

Within 3 km, the terrain around Surian has significant variations in elevation — a maximum elevation change of 310 m around an average of 2,234 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,532 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,988 m.

The land around Surian is covered by bare terrain (67%) and cropland (23%) within 3 km, bare terrain (75%) within 16 km, and bare terrain (79%) within 80 km.

3 km
310 m
16 km
1,532 m
80 km
1,988 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
May weather nearby: Şafāshahr 47 km · Pasargad 53 km · Sa‘ādat Shahr 65 km · Arsanjān 69 km · Abarkūh 83 km · Eqlīd 104 km · Marvdasht 104 km · Zarqān 117 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 Surian (30.4551°, 53.651°, elevation 2,182 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).