Ilām in Spring
In spring (March, April and May), Ilām sees average daytime highs around 23°C and overnight lows near 13°C, with 551 mm of rain over about 67 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Over the season highs climb from about 19°C in early March to 25°C by late May. The sky is clear or mostly clear about 27% of the time across spring, and the air most often feels dry.
Spring is Ilām's 3rd-best season to visit on our travel score. For the whole year in context, see Ilām's year-round climate.
- Avg daytime high
- 23°C
- 2nd-warmest season
- Avg overnight low
- 13°C
- Rainfall
- 551 mm
- 67 wet days
- Avg wind
- 4 km/h
- Travel score
- 4.9
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in Ilām in Spring
Over the season highs climb from about 19°C in early March to 25°C by late May.
A typical spring day in Ilām reaches about 23°C and drops to 13°C overnight. The warmest of the three months is May, the coolest March.
Ilām weather by month
How the three spring months (March, April and May) 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 Spring
The sky is clear or mostly clear about 27% of the time across spring.
Chance of precipitation in Spring
Ilām gets around 551 mm of rain over 67 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 4 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 24 min in early March to 13 h 36 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 5.4 kWh/m².
Hazard calendar for Ilām
None of Ilām's seasonal hazards peak in spring. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Ilām's monsoon runs June–September, when most of the year's rain falls.
Is spring a good time to visit Ilām?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a reasonable time to visit Ilām for sightseeing.
What to pack for Ilām in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Ilām sees daytime highs around 23°C and nights near 13°C. Pack rain gear. Worth having: light clothes and sun protection. About 67 days see rain.
UV index in Ilām in Spring
Clear-sky midday UV across spring averages around 9 (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.
| 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 Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring 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.