Ilām weather in April

In April, Ilām sees average daytime highs of 24°C and overnight lows near 13°C, with 163 mm of rain across 21.8 wet days and about 12.6 hours of daylight. It is the 6th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 30% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 12 min at the start of April to 13 hours by month's end. Set against the rest of the year, April is Ilām's 7th-clearest and 2nd-windiest month. For the whole year in context, see Ilām's year-round climate.

Daytime high
24°
6th warmest
Overnight low
13°
6th coldest
Rainfall
163 mm
21.8 wet days
Daylight
12 h 36 min
5:34 AM – 6:13 PM
Cloud cover
54%
7th clearest
Wind
4 km/h
2nd windiest
Solar energy
5.7 kWh/m²
Travel score
5.1
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 24°C through the month.

A typical April day in Ilām reaches about 24°C in the afternoon and slips back to 13°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 27°C. Set against its neighbours, April runs about 3°C warmer than March and about 1°C cooler than May.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12312
22312
32312
42312
52312
62312
72312
82312
92313
102313
112413
122413
132413
142413
152413
162413
172413
182413
192414
202414
212414
222414
232414
242414
252414
262414
272414
282414
292414
302415

Ilām weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan15° / 296.510.55.2
Feb17° / 5611.2115.4
Mar21° / 10°1001711.85.6
Apr24° / 13°16321.812.65.1
May25° / 16°28828.513.34.1
Jun25° / 19°52629.513.73.6
Jul24° / 20°82530.913.53.4
Aug25° / 19°56630.6133.5
Sep24° / 18°39628.312.23.9
Oct23° / 14°1351811.45.8
Nov20° / 10°277.110.77.0
Dec17° / 153.410.36.5

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 23% of April, with mostly cloudy or overcast conditions the remaining 47%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15941
25842
35842
45941
55941
65941
75941
85842
95743
105743
115743
125743
135644
145644
155545
165446
175446
185347
195248
205149
215149
224951
234852
244753
254654
264555
274555
284456
294456
304357

Chance of precipitation in April

Any precipitation

Ilām gets around 163 mm of rain over 21.8 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 73% and peaks near 87% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
164
264
364
464
564
664
765
865
966
1066
1167
1268
1369
1469
1571
1672
1773
1874
1976
2077
2178
2280
2381
2482
2583
2684
2785
2886
2987
3087

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 42% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1663040
2653140
3643240
4623350
5613450
6593560
7583660
8563770
9553780
10523891
115138101
124939111
134839131
144639141
154440151
164240161
174041171
183842181
193643201
203444212
213245222
222945232
232746252
242546262
252347283
262146293
272046313
281846333
291645354
301444374

Wind in April

Winds average 4 km/h in April.

Across April, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm

Sunrise & sunset in April

DaylightNight

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

Days grow by about 48 minutes over April. Sunrise moves from 5:51 AM to 5:21 AM, and sunset from 6:05 PM to 6:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:516:05
212.35:506:06
312.35:496:06
412.35:476:07
512.35:466:07
612.45:456:08
712.45:446:08
812.45:436:09
912.55:426:09
1012.55:416:10
1112.55:406:10
1212.55:396:11
1312.65:386:11
1412.65:366:12
1512.65:356:12
1612.65:346:13
1712.75:336:13
1812.75:326:14
1912.75:316:14
2012.75:306:15
2112.85:296:15
2212.85:286:16
2312.85:276:16
2412.85:276:17
2512.95:266:17
2612.95:256:18
2712.95:246:18
2812.95:236:19
2913.05:226:20
3013.05:216:20

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.7 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.29 kWh/m² to a high of 5.7 kWh/m² in April across the year — April's 5.7 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.6Bright
55.6Bright
65.6Bright
75.6Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.7Bright
165.7Bright
175.7Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
Planning a trip in April

Hazard calendar for Ilām

In seasonPeak

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

Ilām's monsoon runs June–September, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is April a good time to visit Ilām?

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

5.1
Sightseeing
7th-best month of the year
4.1
Beach & pool
2nd-best month of the year

April is a reasonable time to visit Ilām for sightseeing.

What to pack for Ilām in April

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

In April, Ilām sees daytime highs around 24°C and nights near 13°C. Pack rain gear. Worth having: light clothes and sun protection. About 22 days see rain.

rain gearlight clothessun protection

UV index in Ilām 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 Ilām peaks around July 18 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highExtremeModerateJul 18UV 12Jan 1UV 4
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar9Very high
Apr8Very high
May9Very high
Jun9Very high
Jul13Extreme
Aug10Extreme
Sep11Extreme
Oct6High
Nov4Moderate
Dec4Moderate

Air quality in Ilām 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 Ilām is worst in January — around 111 µg/m³ PM2.5 (unhealthy), about 4.6× the cleanest month (July, 24 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyJan 18111 µg/m³Jul 1925 µg/m³
PM2.5 (µg/m³)Level
Jan111Unhealthy
Feb107Unhealthy
Mar92Unhealthy
Apr74Unhealthy
May52Poor
Jun37Poor
Jul24Moderate
Aug31Moderate
Sep40Poor
Oct59Unhealthy
Nov81Unhealthy
Dec104Unhealthy
Location & terrain

Where is Ilām?

Ilām sits at 26.9°N, 87.9°E, 1,218 m above sea level, in Nepal. The nearest listed city is Darjeeling, 36 km away.

DhankutāDharānĪṭahari̇̄BiratnagarInaruwaKhā̃dbāri̇̄

Topography around Ilām

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

Within 3 km, the terrain around Ilām has large variations in elevation — a maximum elevation change of 966 m around an average of 897 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,582 m; within 80 km, extreme variations in elevation — a maximum elevation change of 7,186 m.

The land around Ilām is covered by trees (88%) within 3 km, trees (92%) within 16 km, and trees (66%) and cropland (25%) within 80 km.

3 km
966 m
16 km
2,582 m
80 km
7,186 m
treesgrasslandcroplandartificial surfacesbare terrainsnow and icewatermoss and lichen
April weather nearby: Darjeeling 36 km · Bhadrapur 44 km · Dhankutā 60 km · Dharān 65 km · Īṭahari̇̄ 70 km · Biratnagar 83 km · Inaruwa 84 km · Khā̃dbāri̇̄ 88 km

Nepal travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / D / M
230 V · 50 Hz
Prices
≈ 24% of US
price level, 2025
GDP per capita
$1,536
2025
Happiness
5.1 / 10
World Happiness, 2025
Safe drinking water
16%
of population, 2024
Homicide rate
2.1
per 100k, 2020
Road deaths
16.3
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Moderate
EF EPI 514
Religion
Hindu 81%Buddhist 8%Muslim 5%Kirat 3%

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 Ilām (26.9094°, 87.9282°, elevation 1,218 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).