Semīrom weather in April

In April, Semīrom sees average daytime highs of 15°C and overnight lows near 3°C, with 28 mm of precipitation across 5.5 wet days and about 12.7 hours of daylight. It is the 7th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 13°C in the first days to 17°C by the end. The sky is clear or mostly clear about 52% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 18 min at the start of April to 13 h 12 min by month's end. Set against the rest of the year, April is Semīrom's 10th-clearest and 1st-windiest month. For the whole year in context, see Semīrom's year-round climate.

Daytime high
15°
7th warmest
Overnight low
6th coldest
Precipitation
28 mm
5.5 wet days
Daylight
12 h 48 min
5:41 AM – 6:27 PM
Cloud cover
43%
10th clearest
Wind
10 km/h
1st windiest
Solar energy
6.91 kWh/m²
Travel score
5.3
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 13°C in the first days to 17°C by the end.

A typical April day in Semīrom reaches about 15°C in the afternoon and slips back to 3°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 19°C. Set against its neighbours, April runs about 6°C warmer than March and about 6°C cooler than May.

10°20°151015202530
Avg high (°C)Avg low (°C)
1120
2121
3131
4131
5131
6131
7132
8142
9142
10142
11142
12143
13153
14153
15153
16153
17153
18164
19164
20164
21164
22164
23174
24175
25175
26175
27175
28175
29185
30185

How April really feels in Semīrom

Once humidity and wind are folded in, April averages 0 days that feel above 32°C and 13 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
13
wind chill below the day's low

The story in April is cold — wind chill drags the overnight "feels like" below the raw low.

Semīrom weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -9°636.86.910.20.0
Feb / -8°526.25.710.90.0
Mar / -3°526.83.511.81.9
Apr15° / 285.50.312.75.3
May21° / 82.3013.68.2
Jun27° / 12°10.20148.4
Jul30° / 15°10.2013.86.5
Aug29° / 13°00013.17.2
Sep26° / 10°00.1012.29.2
Oct20° / 31.1011.28.2
Nov12° / -1°324.11.310.43.7
Dec / -6°485.54.7100.3

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 16% of April, with mostly cloudy or overcast conditions the remaining 32%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16832
26832
36733
46733
56733
66733
76634
86634
96634
106634
116733
126832
136832
146832
156931
166931
176931
186931
197030
207030
216931
226931
236931
246931
256931
266832
276832
286832
296832
306832

Chance of precipitation in April

Any precipitationSnow

Semīrom gets around 28 mm of rain and snow over 5.5 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 19% and peaks near 23% on the wettest days, and about 0 day brings snow. The odds ease toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)Snow chance (%)
1236
2225
3225
4225
5224
6224
7223
8223
9212
10212
11211
12211
13201
14201
15200
16190
17190
18180
19180
20170
21160
22160
23150
24150
25150
26150
27140
28140
29140
30140

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April 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%151015202530
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

Wind in April

Winds average 10 km/h in April, the windiest month of the year.

Across April, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 18 min at the start of April to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over April. Sunrise moves from 6:00 AM to 5:26 AM, and sunset from 6:17 PM to 6:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:006:17
212.35:586:18
312.45:576:18
412.45:566:19
512.45:556:20
612.45:536:20
712.55:526:21
812.55:516:22
912.55:506:22
1012.65:486:23
1112.65:476:24
1212.65:466:24
1312.75:456:25
1412.75:436:26
1512.75:426:26
1612.85:416:27
1712.85:406:28
1812.85:396:28
1912.95:376:29
2012.95:366:30
2112.95:356:30
2213.05:346:31
2313.05:336:32
2413.05:326:32
2513.05:316:33
2613.15:306:34
2713.15:296:35
2813.15:286:35
2913.25:276:36
3013.25:266:37

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 6.91 kWh/m².

For context, solar energy here swings from a low near 3.55 kWh/m² to a high of 8.05 kWh/m² in June across the year — April's 6.91 kWh/m² falls in the middle.

02468151015202530
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.6Intense
46.6Intense
56.6Intense
66.7Intense
76.7Intense
86.7Intense
96.7Intense
106.8Intense
116.8Intense
126.8Intense
136.8Intense
146.9Intense
156.9Intense
166.9Intense
177.0Intense
187.0Intense
197.0Intense
207.0Intense
217.1Intense
227.1Intense
237.1Intense
247.1Intense
257.2Intense
267.2Intense
277.2Intense
287.2Intense
297.2Intense
307.3Intense
Planning a trip in April

Is April a good time to visit Semīrom?

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

5.3
Sightseeing
7th-best month of the year
0.6
Beach & pool
7th-best month of the year

April is a reasonable time to visit Semīrom for sightseeing.

What to pack for Semīrom in April

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

In April, Semīrom sees daytime highs around 15°C and nights near 3°C. Pack sun protection. Worth having: a warm layer. About 6 days see rain.

sun protectiona warm layer

UV index in Semīrom in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Semīrom peaks around July 19 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 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 highModerateJul 19UV 13Jan 10UV 4
UV index (midday)Level
Jan4Moderate
Feb7High
Mar8Very high
Apr8Very high
May12Extreme
Jun12Extreme
Jul13Extreme
Aug12Extreme
Sep9Very high
Oct8Very high
Nov5High
Dec4Moderate

Air quality in Semīrom in April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.

Air quality in Semīrom is worst in April — around 35 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (August, 19 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1834 µg/m³Aug 1819 µg/m³
PM2.5 (µg/m³)Level
Jan23Moderate
Feb25Moderate
Mar30Moderate
Apr35Moderate
May32Moderate
Jun22Moderate
Jul25Moderate
Aug19Moderate
Sep23Moderate
Oct24Moderate
Nov21Moderate
Dec20Moderate
Location & terrain

Where is Semīrom?

Semīrom sits at 31.4°N, 51.6°E, 2,425 m above sea level, in Iran. The nearest listed city is Dehāqān, 59 km away.

MobārakehVarnāmkhvāst

Topography around Semīrom

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

Within 3 km, the terrain around Semīrom has large variations in elevation — a maximum elevation change of 735 m around an average of 2,512 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,409 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,302 m.

The land around Semīrom is covered by grassland (33%), cropland (29%) and bare terrain (20%) within 3 km, grassland (48%), cropland (29%) and bare terrain (22%) within 16 km, and bare terrain (47%) and grassland (34%) within 80 km.

3 km
735 m
16 km
1,409 m
80 km
3,302 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
April weather nearby: Dehāqān 59 km · Borūjen 66 km · Lordegān 71 km · Shahreẕā 72 km · Mādavān 78 km · Yasuj 83 km · Mobārakeh 104 km · Varnāmkhvāst 106 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 Semīrom (31.4167°, 51.5667°, elevation 2,425 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).