Isfahan weather in April

In April, Isfahan sees average daytime highs of 24°C and overnight lows near 10°C, with 10 mm of rain across 3 wet days and about 12.8 hours of daylight. It is the 7th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 21°C in the first days to 26°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 Isfahan's 12th-clearest and 1st-windiest month. For the whole year in context, see Isfahan's year-round climate.

Daytime high
24°
7th warmest
Overnight low
10°
7th coldest
Rainfall
10 mm
3 wet days
Daylight
12 h 48 min
5:39 AM – 6:28 PM
Cloud cover
43%
12th clearest
Wind
9 km/h
1st windiest
Solar energy
6.83 kWh/m²
Travel score
8.1
out of 10

Isfahan is city in Isfahan Province, Iran.

Air quality
High
PM2.5 29.9 µg/m³ · 2016
Density
3,133/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 21°C in the first days to 26°C by the end.

A typical April day in Isfahan reaches about 24°C in the afternoon and slips back to 10°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 28°C. Set against its neighbours, April runs about 5°C warmer than March and about 6°C cooler than May.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
1217
2217
3218
4228
5228
6228
7228
8229
9239
10239
11239
12239
132310
142310
152410
162410
172410
182410
192411
202511
212511
222511
232511
242511
252512
262612
272612
282612
292612
302612

How April really feels in Isfahan

Once humidity and wind are folded in, April 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

April sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Isfahan 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
Jan10° / -2°153.31.710.12.6
Feb13° / 122.70.410.84.7
Mar18° / 153.5011.87.1
Apr24° / 10°103012.88.1
May29° / 15°71.9013.76.6
Jun35° / 19°10.3014.13.4
Jul38° / 22°00013.91.7
Aug36° / 20°00013.22.6
Sep32° / 15°00.1012.25.3
Oct25° / 10°30.7011.28.7
Nov17° / 152.50.210.36.5
Dec11° / -0°1230.59.93.5

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% of the time in April, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 17% of April, with mostly cloudy or overcast conditions the remaining 32%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17228
27228
37228
47030
57030
67030
77030
86931
96832
106832
116931
126832
136832
146832
156832
166931
176931
186931
196832
206931
216931
226832
236832
246733
256634
266634
276634
286634
296634
306733

Chance of precipitation in April

Any precipitation

Isfahan gets around 10 mm of rain over 3 wet days in April. 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 11% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
111
211
311
411
511
611
711
811
911
1011
1111
1211
1311
1411
1511
1611
1711
1810
1910
2010
2110
2210
239
249
259
269
279
289
299
3010

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 9 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 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

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 5:59 AM to 5:23 AM, and sunset from 6:17 PM to 6:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:596:17
212.35:586:18
312.45:566:18
412.45:556:19
512.45:546:20
612.55:526:21
712.55:516:21
812.55:506:22
912.65:486:23
1012.65:476:23
1112.65:466:24
1212.75:446:25
1312.75:436:26
1412.75:426:26
1512.85:416:27
1612.85:396:28
1712.85:386:28
1812.95:376:29
1912.95:366:30
2012.95:356:31
2113.05:336:31
2213.05:326:32
2313.05:316:33
2413.15:306:33
2513.15:296:34
2613.15:286:35
2713.25:276:36
2813.25:256:36
2913.25:246:37
3013.25:236:38

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 6.83 kWh/m².

For context, solar energy here swings from a low near 3.28 kWh/m² to a high of 8.05 kWh/m² in June across the year — April's 6.83 kWh/m² falls in the middle.

02468151015202530
Solar energy (kWh/m²)Level
16.4Intense
26.5Intense
36.5Intense
46.5Intense
56.6Intense
66.6Intense
76.6Intense
86.6Intense
96.7Intense
106.7Intense
116.7Intense
126.7Intense
136.8Intense
146.8Intense
156.8Intense
166.9Intense
176.9Intense
186.9Intense
196.9Intense
207.0Intense
217.0Intense
227.0Intense
237.0Intense
247.0Intense
257.1Intense
267.1Intense
277.1Intense
287.1Intense
297.1Intense
307.2Intense
Planning a trip in April

Is April a good time to visit Isfahan?

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

8.1
Sightseeing
2nd-best month of the year
6.5
Beach & pool
5th-best month of the year

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

What to pack for Isfahan in April

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

In April, Isfahan sees daytime highs around 24°C and nights near 10°C. Pack sun protection. Worth having: light clothes. About 3 days see rain.

sun protectionlight clothes

UV index in Isfahan in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 Isfahan peaks around July 16 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highModerateJul 16UV 11Jan 1UV 3
UV index (midday)Level
Jan3Moderate
Feb5High
Mar6High
Apr8Very high
May10Extreme
Jun10Extreme
Jul11Extreme
Aug10Extreme
Sep8Very high
Oct7Very high
Nov4Moderate
Dec3Moderate

Air quality in Isfahan 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 Isfahan is worst in April — around 39 µg/m³ PM2.5 (poor), about 1.7× the cleanest month (August, 23 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Isfahan's WHO annual average of 29.9 µg/m³.

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateApr 2038 µg/m³Aug 1924 µg/m³
PM2.5 (µg/m³)Level
Jan29Moderate
Feb31Moderate
Mar34Moderate
Apr39Poor
May37Poor
Jun27Moderate
Jul32Moderate
Aug23Moderate
Sep28Moderate
Oct27Moderate
Nov25Moderate
Dec27Moderate
Location & terrain

Where is Isfahan?

Isfahan sits at 32.7°N, 51.7°E, 1,578 m above sea level, in Iran. The nearest listed city is Rehnān, 8.0 km away.

Topography around Isfahan

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

Within 3 km, the terrain around Isfahan has only modest variations in elevation — a maximum elevation change of 38 m around an average of 1,575 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 684 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,808 m.

The land around Isfahan is covered by artificial surfaces (93%) within 3 km, bare terrain (38%), artificial surfaces (35%) and cropland (23%) within 16 km, and bare terrain (85%) within 80 km.

3 km
38 m
16 km
684 m
80 km
1,808 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
April weather nearby: Rehnān 8.0 km · Dorcheh Pīāz 12 km · Khomeynī Shahr 13 km · Khowrzūq 14 km · Abrīsham 14 km · Dowlatābād 16 km · Dastgerd 17 km · Gaz-e Borkhar 18 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 Isfahan (32.6525°, 51.6746°, elevation 1,578 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).