Ilām in Fall
In fall (September, October and November), Ilām sees average daytime highs around 22°C and overnight lows near 14°C, with 558 mm of rain over about 53 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 25°C in early September to 18°C by late November. The sky is clear or mostly clear about 33% of the time across fall, and the air most often feels dry.
Fall is Ilām's 2nd-best season to visit on our travel score. For the whole year in context, see Ilām's year-round climate.
- Avg daytime high
- 22°C
- 3rd-warmest season
- Avg overnight low
- 14°C
- Rainfall
- 558 mm
- 53 wet days
- Avg wind
- 3 km/h
- Travel score
- 5.6
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Ilām in Fall
Over the season highs ease from about 25°C in early September to 18°C by late November.
A typical fall day in Ilām reaches about 22°C and drops to 14°C overnight. The warmest of the three months is September, the coolest November.
Ilām weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 15° / 5° | 29 | 6.5 | 10.5 | 5.2 |
| Feb | 17° / 7° | 56 | 11.2 | 11 | 5.4 |
| Mar | 21° / 10° | 100 | 17 | 11.8 | 5.6 |
| Apr | 24° / 13° | 163 | 21.8 | 12.6 | 5.1 |
| May | 25° / 16° | 288 | 28.5 | 13.3 | 4.1 |
| Jun | 25° / 19° | 526 | 29.5 | 13.7 | 3.6 |
| Jul | 24° / 20° | 825 | 30.9 | 13.5 | 3.4 |
| Aug | 25° / 19° | 566 | 30.6 | 13 | 3.5 |
| Sep | 24° / 18° | 396 | 28.3 | 12.2 | 3.9 |
| Oct | 23° / 14° | 135 | 18 | 11.4 | 5.8 |
| Nov | 20° / 10° | 27 | 7.1 | 10.7 | 7.0 |
| Dec | 17° / 6° | 15 | 3.4 | 10.3 | 6.5 |
Cloud cover in Fall
The sky is clear or mostly clear about 33% of the time across fall.
Chance of precipitation in Fall
Ilām gets around 558 mm of rain over 53 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 3 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 36 min in early September to 10 h 24 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 3.9 kWh/m².
Hazard calendar for Ilām
In fall, Ilām overlaps 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.
Is fall a good time to visit Ilām?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Ilām for sightseeing.
What to pack for Ilām in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Ilām sees daytime highs around 22°C and nights near 14°C. Pack rain gear. Worth having: light clothes. About 53 days see rain.
UV index in Ilām in Fall
Clear-sky midday UV across fall averages around 7 — 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 4 | 5 | 9 | 8 | 9 | 9 | 13 | 10 | 11 | 6 | 4 | 4 |
| Level | Moderate | Moderate | Very high | Very high | Very high | Very high | Extreme | Extreme | Extreme | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 5 | Moderate |
| Mar | 9 | Very high |
| Apr | 8 | Very high |
| May | 9 | Very high |
| Jun | 9 | Very high |
| Jul | 13 | Extreme |
| Aug | 10 | Extreme |
| Sep | 11 | Extreme |
| Oct | 6 | High |
| Nov | 4 | Moderate |
| Dec | 4 | Moderate |
Air quality in Ilām in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall 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).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 111 | 107 | 92 | 74 | 52 | 37 | 24 | 31 | 40 | 59 | 81 | 104 |
| Level | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Poor | Poor | Moderate | Moderate | Poor | Unhealthy | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 111 | Unhealthy |
| Feb | 107 | Unhealthy |
| Mar | 92 | Unhealthy |
| Apr | 74 | Unhealthy |
| May | 52 | Poor |
| Jun | 37 | Poor |
| Jul | 24 | Moderate |
| Aug | 31 | Moderate |
| Sep | 40 | Poor |
| Oct | 59 | Unhealthy |
| Nov | 81 | Unhealthy |
| Dec | 104 | Unhealthy |
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.
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.
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
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.