Ilām weather in August

In August, Ilām sees average daytime highs of 25°C and overnight lows near 19°C, with 566 mm of rain across 30.6 wet days and about 13 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 1% of the time in August, and the air most often feels muggy.

Daylight stretches from about 13 h 18 min at the start of August to 12 h 36 min by month's end. Set against the rest of the year, August is Ilām's 11th-clearest and 11th-windiest month. For the whole year in context, see Ilām's year-round climate.

Daytime high
25°
2nd warmest
Overnight low
19°
11th coldest
Rainfall
566 mm
30.6 wet days
Daylight
13 hours
5:29 AM – 6:26 PM
Cloud cover
92%
11th clearest
Wind
3 km/h
11th windiest
Solar energy
3.6 kWh/m²
Travel score
3.5
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 25°C through the month.

A typical August day in Ilām reaches about 25°C in the afternoon and slips back to 19°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 27°C. Set against its neighbours, August runs on par with July and on par with September.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12520
22520
32520
42520
52520
62520
72520
82520
92520
102520
112520
122520
132520
142520
152520
162520
172520
182519
192519
202519
212519
222519
232519
242519
252519
262519
272519
282519
292519
302519
312519

Ilām weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 2nd-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 August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 2% of August, with mostly cloudy or overcast conditions the remaining 97%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1199
2199
3199
40100
50100
60100
7199
8199
9199
10199
11199
12199
13199
14199
15199
16199
17298
18397
19397
20397
21397
22496
23496
24496
25595
26595
27595
28793
29793
30793
31892

Chance of precipitation in August

Any precipitation

Ilām gets around 566 mm of rain over 30.6 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 99% and peaks near 99% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
199
299
399
499
599
699
799
899
999
1099
1199
1299
1399
1499
1599
1699
1799
1899
1999
2099
2199
2298
2398
2498
2598
2698
2798
2898
2998
3098
3198

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the muggy band about 94% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
10937
20928
30928
40928
50928
60928
70928
80928
90928
100928
110937
120937
130937
140946
151936
161945
171945
181954
191954
201963
211963
221963
231963
241972
251972
261972
271972
282971
292971
302971
313961

Wind in August

Winds average 3 km/h in August.

Across August, daily wind ranges from about 3 km/h on the calmest days to 3 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
13calm
23calm
33calm
43calm
53calm
63calm
73calm
83calm
93calm
103calm
113calm
123calm
133calm
143calm
153calm
163calm
173calm
183calm
193calm
203calm
213calm
223calm
233calm
243calm
253calm
263calm
273calm
283calm
293calm
303calm
313calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 18 min at the start of August to 12 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over August. Sunrise moves from 5:21 AM to 5:36 AM, and sunset from 6:38 PM to 6:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:216:38
213.35:216:37
313.25:226:37
413.25:226:36
513.25:236:35
613.25:236:34
713.25:246:34
813.15:256:33
913.15:256:32
1013.15:266:31
1113.15:266:31
1213.15:276:30
1313.05:276:29
1413.05:286:28
1513.05:286:27
1613.05:296:26
1712.95:296:25
1812.95:306:24
1912.95:306:23
2012.95:316:22
2112.85:316:21
2212.85:326:20
2312.85:326:19
2412.85:336:18
2512.75:336:17
2612.75:336:16
2712.75:346:15
2812.75:346:14
2912.65:356:13
3012.65:356:12
3112.65:366:11

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.6 kWh/m².

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 — August's 3.6 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.6Moderate
23.6Moderate
33.6Moderate
43.6Moderate
53.6Moderate
63.6Moderate
73.6Moderate
83.6Moderate
93.6Moderate
103.6Moderate
113.6Moderate
123.5Moderate
133.5Moderate
143.5Moderate
153.5Moderate
163.5Moderate
173.5Moderate
183.5Moderate
193.5Moderate
203.5Moderate
213.6Moderate
223.6Moderate
233.6Moderate
243.6Moderate
253.6Moderate
263.6Moderate
273.6Moderate
283.6Moderate
293.6Moderate
303.7Moderate
313.7Moderate
Planning a trip in August

Hazard calendar for Ilām

In seasonPeak

In August, Ilām sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

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 August a good time to visit Ilām?

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

3.5
Sightseeing
11th-best month of the year
3.1
Beach & pool
8th-best month of the year

August is a weaker month for outdoor sightseeing in Ilām.

What to pack for Ilām in August

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

In August, Ilām sees daytime highs around 25°C and nights near 19°C. Pack rain gear. Worth having: light clothes. About 31 days see rain.

rain gearlight clothes

UV index in Ilām in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 10 (very high — sun protection essential). 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 August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August 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
August 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).