Lahān weather in April
In April, Lahān sees average daytime highs of 35°C and overnight lows near 22°C, with 31 mm of rain across 5.6 wet days and about 12.6 hours of daylight. It is the 1st-warmest and 7th-wettest month of the year here.
Day-to-day highs hold fairly steady near 35°C through the month. The sky is clear or mostly clear about 60% 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 Lahān's 7th-clearest and 1st-windiest month. For the whole year in context, see Lahān's year-round climate.
- Daytime high
- 35°
- 1st warmest
- Overnight low
- 22°
- 7th coldest
- Rainfall
- 31 mm
- 5.6 wet days
- Daylight
- 12 h 36 min
- 5:40 AM – 6:18 PM
- Cloud cover
- 34%
- 7th clearest
- Wind
- 9 km/h
- 1st windiest
- Solar energy
- 6.33 kWh/m²
- Travel score
- 3.1
- out of 10
Lahān is municipality in Siraha District, Nepal.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in April
Day-to-day highs hold fairly steady near 35°C through the month.
A typical April day in Lahān reaches about 35°C in the afternoon and slips back to 22°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 39°C. Set against its neighbours, April runs about 4°C warmer than March and on par with May.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 |
| Avg low (°C) | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 34 | 20 |
| 2 | 34 | 20 |
| 3 | 34 | 20 |
| 4 | 34 | 20 |
| 5 | 34 | 21 |
| 6 | 34 | 21 |
| 7 | 34 | 21 |
| 8 | 35 | 21 |
| 9 | 35 | 21 |
| 10 | 35 | 21 |
| 11 | 35 | 21 |
| 12 | 35 | 22 |
| 13 | 35 | 22 |
| 14 | 35 | 22 |
| 15 | 35 | 22 |
| 16 | 35 | 22 |
| 17 | 35 | 22 |
| 18 | 35 | 22 |
| 19 | 35 | 22 |
| 20 | 35 | 22 |
| 21 | 35 | 23 |
| 22 | 35 | 23 |
| 23 | 35 | 23 |
| 24 | 35 | 23 |
| 25 | 35 | 23 |
| 26 | 35 | 23 |
| 27 | 35 | 23 |
| 28 | 35 | 23 |
| 29 | 35 | 23 |
| 30 | 35 | 23 |
How April really feels in Lahān
Once humidity and wind are folded in, April averages 30 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in April is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Lahān weather by month
How April compares with the rest of the year at a glance. April is the 1st-warmest and 7th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 22° / 10° | 12 | 1.8 | 10.5 | 8.5 |
| Feb | 26° / 13° | 12 | 2.1 | 11.1 | 8.5 |
| Mar | 31° / 17° | 12 | 2.4 | 11.8 | 5.6 |
| Apr | 35° / 22° | 31 | 5.6 | 12.6 | 3.1 |
| May | 34° / 24° | 97 | 13.7 | 13.3 | 2.7 |
| Jun | 33° / 26° | 252 | 23 | 13.6 | 2.5 |
| Jul | 31° / 26° | 413 | 27.6 | 13.5 | 2.6 |
| Aug | 31° / 26° | 279 | 27 | 12.9 | 2.6 |
| Sep | 31° / 25° | 240 | 23.1 | 12.2 | 3.2 |
| Oct | 30° / 21° | 57 | 6.9 | 11.4 | 5.8 |
| Nov | 28° / 16° | 4 | 0.5 | 10.7 | 8.3 |
| Dec | 24° / 11° | 4 | 0.8 | 10.4 | 9.1 |
Cloud cover in April
The sky is clear or mostly clear about 60% of the time in April.
Beyond those clear spells, partly cloudy skies cover about 22% of April, with mostly cloudy or overcast conditions the remaining 18%. Skies tend to cloud over as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 84 | 84 | 84 | 84 | 83 | 83 | 83 | 82 | 82 | 82 | 82 | 81 | 81 | 80 | 80 | 80 | 79 | 79 | 79 | 79 | 79 |
| Cloudier (%) | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 19 | 19 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 85 | 15 |
| 2 | 85 | 15 |
| 3 | 85 | 15 |
| 4 | 85 | 15 |
| 5 | 85 | 15 |
| 6 | 85 | 15 |
| 7 | 85 | 15 |
| 8 | 85 | 15 |
| 9 | 85 | 15 |
| 10 | 84 | 16 |
| 11 | 84 | 16 |
| 12 | 84 | 16 |
| 13 | 84 | 16 |
| 14 | 83 | 17 |
| 15 | 83 | 17 |
| 16 | 83 | 17 |
| 17 | 82 | 18 |
| 18 | 82 | 18 |
| 19 | 82 | 18 |
| 20 | 82 | 18 |
| 21 | 81 | 19 |
| 22 | 81 | 19 |
| 23 | 80 | 20 |
| 24 | 80 | 20 |
| 25 | 80 | 20 |
| 26 | 79 | 21 |
| 27 | 79 | 21 |
| 28 | 79 | 21 |
| 29 | 79 | 21 |
| 30 | 79 | 21 |
Chance of precipitation in April
Lahān gets around 31 mm of rain over 5.6 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 20% and peaks near 30% on the wettest days. The odds climb toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 17 | 18 | 18 | 19 | 20 | 20 | 21 | 22 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 30 |
| Rain chance (%) | |
|---|---|
| 1 | 14 |
| 2 | 14 |
| 3 | 14 |
| 4 | 15 |
| 5 | 15 |
| 6 | 15 |
| 7 | 15 |
| 8 | 15 |
| 9 | 15 |
| 10 | 16 |
| 11 | 16 |
| 12 | 16 |
| 13 | 17 |
| 14 | 18 |
| 15 | 18 |
| 16 | 19 |
| 17 | 20 |
| 18 | 20 |
| 19 | 21 |
| 20 | 22 |
| 21 | 22 |
| 22 | 23 |
| 23 | 24 |
| 24 | 25 |
| 25 | 26 |
| 26 | 27 |
| 27 | 28 |
| 28 | 29 |
| 29 | 30 |
| 30 | 30 |
Humidity in April
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 31% of days. Sticky, muggy-or-worse air turns up on roughly 27% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 45 | 44 | 43 | 43 | 42 | 42 | 41 | 41 | 40 | 39 | 39 | 38 | 36 | 35 | 34 | 33 | 31 | 29 | 28 | 26 | 24 | 22 | 20 | 19 | 17 | 16 | 14 | 13 | 12 | 11 |
| Comfortable (%) | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 19 | 18 | 17 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 10 |
| Humid (%) | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 27 | 26 | 26 | 25 | 24 | 23 |
| Muggy (%) | 8 | 8 | 9 | 9 | 9 | 10 | 10 | 11 | 12 | 13 | 14 | 15 | 17 | 18 | 20 | 21 | 23 | 24 | 26 | 28 | 29 | 31 | 33 | 35 | 37 | 39 | 40 | 41 | 43 | 44 |
| Oppressive (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 5 | 5 | 6 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 45 | 25 | 22 | 8 | 1 |
| 2 | 44 | 24 | 23 | 8 | 1 |
| 3 | 43 | 23 | 24 | 9 | 1 |
| 4 | 43 | 22 | 25 | 9 | 1 |
| 5 | 42 | 21 | 26 | 9 | 1 |
| 6 | 42 | 20 | 27 | 10 | 1 |
| 7 | 41 | 19 | 28 | 10 | 1 |
| 8 | 41 | 19 | 28 | 11 | 1 |
| 9 | 40 | 18 | 28 | 12 | 2 |
| 10 | 39 | 17 | 29 | 13 | 2 |
| 11 | 39 | 16 | 29 | 14 | 2 |
| 12 | 38 | 16 | 29 | 15 | 2 |
| 13 | 36 | 16 | 28 | 17 | 3 |
| 14 | 35 | 15 | 28 | 18 | 3 |
| 15 | 34 | 15 | 28 | 20 | 3 |
| 16 | 33 | 14 | 28 | 21 | 3 |
| 17 | 31 | 14 | 29 | 23 | 4 |
| 18 | 29 | 14 | 29 | 24 | 4 |
| 19 | 28 | 13 | 29 | 26 | 4 |
| 20 | 26 | 13 | 29 | 28 | 5 |
| 21 | 24 | 13 | 29 | 29 | 5 |
| 22 | 22 | 12 | 28 | 31 | 6 |
| 23 | 20 | 12 | 28 | 33 | 6 |
| 24 | 19 | 11 | 28 | 35 | 7 |
| 25 | 17 | 11 | 27 | 37 | 8 |
| 26 | 16 | 11 | 26 | 39 | 9 |
| 27 | 14 | 10 | 26 | 40 | 10 |
| 28 | 13 | 10 | 25 | 41 | 11 |
| 29 | 12 | 10 | 24 | 43 | 12 |
| 30 | 11 | 10 | 23 | 44 | 13 |
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.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 9 | calm |
| 2 | 9 | calm |
| 3 | 9 | calm |
| 4 | 9 | calm |
| 5 | 9 | calm |
| 6 | 9 | calm |
| 7 | 9 | calm |
| 8 | 9 | calm |
| 9 | 9 | calm |
| 10 | 9 | calm |
| 11 | 9 | calm |
| 12 | 9 | calm |
| 13 | 9 | calm |
| 14 | 9 | calm |
| 15 | 9 | calm |
| 16 | 9 | calm |
| 17 | 9 | calm |
| 18 | 9 | calm |
| 19 | 9 | calm |
| 20 | 9 | calm |
| 21 | 9 | calm |
| 22 | 9 | calm |
| 23 | 9 | calm |
| 24 | 9 | calm |
| 25 | 9 | calm |
| 26 | 9 | calm |
| 27 | 9 | calm |
| 28 | 9 | calm |
| 29 | 9 | calm |
| 30 | 9 | calm |
Sunrise & sunset in April
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 5:57 AM to 5:27 AM, and sunset from 6:11 PM to 6:26 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.2 | 12.3 | 12.3 | 12.3 | 12.3 | 12.4 | 12.4 | 12.4 | 12.4 | 12.5 | 12.5 | 12.5 | 12.6 | 12.6 | 12.6 | 12.6 | 12.7 | 12.7 | 12.7 | 12.7 | 12.8 | 12.8 | 12.8 | 12.8 | 12.9 | 12.9 | 12.9 | 12.9 | 13.0 | 13.0 |
| Sunrise (AM) | 5:57 | 5:56 | 5:54 | 5:53 | 5:52 | 5:51 | 5:50 | 5:49 | 5:48 | 5:47 | 5:46 | 5:45 | 5:43 | 5:42 | 5:41 | 5:40 | 5:39 | 5:38 | 5:37 | 5:36 | 5:35 | 5:34 | 5:33 | 5:32 | 5:32 | 5:31 | 5:30 | 5:29 | 5:28 | 5:27 |
| Sunset (PM) | 6:11 | 6:11 | 6:12 | 6:12 | 6:13 | 6:13 | 6:14 | 6:14 | 6:15 | 6:15 | 6:16 | 6:16 | 6:17 | 6:17 | 6:18 | 6:18 | 6:19 | 6:19 | 6:20 | 6:20 | 6:21 | 6:21 | 6:22 | 6:22 | 6:23 | 6:23 | 6:24 | 6:25 | 6:25 | 6:26 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.2 | 5:57 | 6:11 |
| 2 | 12.3 | 5:56 | 6:11 |
| 3 | 12.3 | 5:54 | 6:12 |
| 4 | 12.3 | 5:53 | 6:12 |
| 5 | 12.3 | 5:52 | 6:13 |
| 6 | 12.4 | 5:51 | 6:13 |
| 7 | 12.4 | 5:50 | 6:14 |
| 8 | 12.4 | 5:49 | 6:14 |
| 9 | 12.4 | 5:48 | 6:15 |
| 10 | 12.5 | 5:47 | 6:15 |
| 11 | 12.5 | 5:46 | 6:16 |
| 12 | 12.5 | 5:45 | 6:16 |
| 13 | 12.6 | 5:43 | 6:17 |
| 14 | 12.6 | 5:42 | 6:17 |
| 15 | 12.6 | 5:41 | 6:18 |
| 16 | 12.6 | 5:40 | 6:18 |
| 17 | 12.7 | 5:39 | 6:19 |
| 18 | 12.7 | 5:38 | 6:19 |
| 19 | 12.7 | 5:37 | 6:20 |
| 20 | 12.7 | 5:36 | 6:20 |
| 21 | 12.8 | 5:35 | 6:21 |
| 22 | 12.8 | 5:34 | 6:21 |
| 23 | 12.8 | 5:33 | 6:22 |
| 24 | 12.8 | 5:32 | 6:22 |
| 25 | 12.9 | 5:32 | 6:23 |
| 26 | 12.9 | 5:31 | 6:23 |
| 27 | 12.9 | 5:30 | 6:24 |
| 28 | 12.9 | 5:29 | 6:25 |
| 29 | 13.0 | 5:28 | 6:25 |
| 30 | 13.0 | 5:27 | 6:26 |
Solar energy in April
Average shortwave solar energy reaching the ground each day in April, about 6.33 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 3.63 kWh/m² to a high of 6.33 kWh/m² in April across the year — April's 6.33 kWh/m² sits near the top of that range.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.1 | 6.2 | 6.2 | 6.2 | 6.2 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.2 | 6.2 | 6.2 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.1 | Intense |
| 2 | 6.2 | Intense |
| 3 | 6.2 | Intense |
| 4 | 6.2 | Intense |
| 5 | 6.2 | Intense |
| 6 | 6.3 | Intense |
| 7 | 6.3 | Intense |
| 8 | 6.3 | Intense |
| 9 | 6.3 | Intense |
| 10 | 6.3 | Intense |
| 11 | 6.3 | Intense |
| 12 | 6.3 | Intense |
| 13 | 6.3 | Intense |
| 14 | 6.3 | Intense |
| 15 | 6.3 | Intense |
| 16 | 6.3 | Intense |
| 17 | 6.3 | Intense |
| 18 | 6.3 | Intense |
| 19 | 6.3 | Intense |
| 20 | 6.3 | Intense |
| 21 | 6.3 | Intense |
| 22 | 6.3 | Intense |
| 23 | 6.3 | Intense |
| 24 | 6.3 | Intense |
| 25 | 6.3 | Intense |
| 26 | 6.3 | Intense |
| 27 | 6.3 | Intense |
| 28 | 6.2 | Intense |
| 29 | 6.2 | Intense |
| 30 | 6.2 | Intense |
Hazard calendar for Lahān
None of Lahān's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Lahān's monsoon runs June–September, when most of the year's rain falls.
Is April a good time to visit Lahān?
Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
April is a weaker month for outdoor sightseeing in Lahān. The water and warmth also suit a beach or pool day.
What to pack for Lahān in April
From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In April, Lahān sees daytime highs around 35°C and nights near 22°C. Pack light clothes and sun protection. About 6 days see rain.
UV index in Lahān in April
Clear-sky midday UV in April peaks 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 Lahān peaks around July 19 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 18 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 | 4 | 9 | 7 | 8 | 7 | 12 | 9 | 9 | 6 | 4 | 4 |
| Level | Moderate | Moderate | Very high | Very high | Very high | High | Extreme | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 4 | Moderate |
| Mar | 9 | Very high |
| Apr | 7 | Very high |
| May | 8 | Very high |
| Jun | 7 | High |
| Jul | 12 | Extreme |
| Aug | 9 | Very high |
| Sep | 9 | Very high |
| Oct | 6 | High |
| Nov | 4 | Moderate |
| Dec | 4 | Moderate |
Air quality in Lahān in April
Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.
Air quality in Lahān is worst in January — around 169 µg/m³ PM2.5 (very unhealthy), about 4.9× the cleanest month (July, 35 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) | 169 | 138 | 107 | 87 | 70 | 57 | 35 | 43 | 55 | 87 | 125 | 160 |
| Level | Very unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Moderate | Poor | Unhealthy | Unhealthy | Unhealthy | Very unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 169 | Very unhealthy |
| Feb | 138 | Unhealthy |
| Mar | 107 | Unhealthy |
| Apr | 87 | Unhealthy |
| May | 70 | Unhealthy |
| Jun | 57 | Unhealthy |
| Jul | 35 | Moderate |
| Aug | 43 | Poor |
| Sep | 55 | Unhealthy |
| Oct | 87 | Unhealthy |
| Nov | 125 | Unhealthy |
| Dec | 160 | Very unhealthy |
Where is Lahān?
Lahān sits at 26.7°N, 86.5°E, 123 m above sea level, in Nepal. The nearest listed city is Triyuga, 23 km away.
Topography around Lahān
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Lahān.
Within 3 km, the terrain around Lahān has only modest variations in elevation — a maximum elevation change of 32 m around an average of 115 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 367 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,111 m.
The land around Lahān is covered by cropland (61%) within 3 km, cropland (54%) and trees (38%) within 16 km, and cropland (47%) and trees (45%) 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 Lahān (26.7202°, 86.4826°, elevation 123 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).