Lahān weather in May
In May, Lahān sees average daytime highs of 34°C and overnight lows near 24°C, with 97 mm of rain across 13.7 wet days and about 13.3 hours of daylight. It is the 2nd-warmest and 5th-wettest month of the year here.
Day-to-day highs hold fairly steady near 34°C through the month. The sky is clear or mostly clear about 51% of the time in May, and the air most often feels oppressive.
Daylight stretches from about 13 hours at the start of May to 13 h 30 min by month's end. Set against the rest of the year, May is Lahān's 8th-clearest and 2nd-windiest month. For the whole year in context, see Lahān's year-round climate.
- Daytime high
- 34°
- 2nd warmest
- Overnight low
- 24°
- 8th coldest
- Rainfall
- 97 mm
- 13.7 wet days
- Daylight
- 13 h 18 min
- 5:16 AM – 6:35 PM
- Cloud cover
- 42%
- 8th clearest
- Wind
- 9 km/h
- 2nd windiest
- Solar energy
- 5.89 kWh/m²
- Travel score
- 2.7
- out of 10
Lahān is municipality in Siraha District, Nepal.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in May
Day-to-day highs hold fairly steady near 34°C through the month.
A typical May day in Lahān reaches about 34°C in the afternoon and slips back to 24°C overnight — a 10°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, May runs on par with April and about 2°C warmer than June.
| 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 |
| Avg low (°C) | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 35 | 23 |
| 2 | 35 | 24 |
| 3 | 35 | 24 |
| 4 | 35 | 24 |
| 5 | 35 | 24 |
| 6 | 35 | 24 |
| 7 | 35 | 24 |
| 8 | 35 | 24 |
| 9 | 35 | 24 |
| 10 | 35 | 24 |
| 11 | 35 | 24 |
| 12 | 35 | 24 |
| 13 | 35 | 24 |
| 14 | 35 | 24 |
| 15 | 35 | 25 |
| 16 | 35 | 25 |
| 17 | 35 | 25 |
| 18 | 34 | 25 |
| 19 | 34 | 25 |
| 20 | 34 | 25 |
| 21 | 34 | 25 |
| 22 | 34 | 25 |
| 23 | 34 | 25 |
| 24 | 34 | 25 |
| 25 | 34 | 25 |
| 26 | 34 | 25 |
| 27 | 34 | 25 |
| 28 | 34 | 25 |
| 29 | 34 | 25 |
| 30 | 34 | 25 |
| 31 | 34 | 25 |
How May really feels in Lahān
Once humidity and wind are folded in, May averages 31 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 May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Lahān weather by month
How May compares with the rest of the year at a glance. May is the 2nd-warmest and 5th-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 May
The sky is clear or mostly clear about 51% of the time in May.
Beyond those clear spells, partly cloudy skies cover about 27% of May, with mostly cloudy or overcast conditions the remaining 22%. 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 79 | 79 | 80 | 81 | 81 | 81 | 81 | 83 | 83 | 83 | 83 | 83 | 83 | 82 | 81 | 81 | 79 | 79 | 78 | 77 | 76 | 76 | 76 | 75 | 75 | 75 | 74 | 73 | 73 | 72 | 71 |
| Cloudier (%) | 21 | 21 | 20 | 19 | 19 | 19 | 19 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 19 | 19 | 21 | 21 | 22 | 23 | 24 | 24 | 24 | 25 | 25 | 25 | 26 | 27 | 27 | 28 | 29 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 79 | 21 |
| 2 | 79 | 21 |
| 3 | 80 | 20 |
| 4 | 81 | 19 |
| 5 | 81 | 19 |
| 6 | 81 | 19 |
| 7 | 81 | 19 |
| 8 | 83 | 17 |
| 9 | 83 | 17 |
| 10 | 83 | 17 |
| 11 | 83 | 17 |
| 12 | 83 | 17 |
| 13 | 83 | 17 |
| 14 | 82 | 18 |
| 15 | 81 | 19 |
| 16 | 81 | 19 |
| 17 | 79 | 21 |
| 18 | 79 | 21 |
| 19 | 78 | 22 |
| 20 | 77 | 23 |
| 21 | 76 | 24 |
| 22 | 76 | 24 |
| 23 | 76 | 24 |
| 24 | 75 | 25 |
| 25 | 75 | 25 |
| 26 | 75 | 25 |
| 27 | 74 | 26 |
| 28 | 73 | 27 |
| 29 | 73 | 27 |
| 30 | 72 | 28 |
| 31 | 71 | 29 |
Chance of precipitation in May
Lahān gets around 97 mm of rain over 13.7 wet days in May. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 44% and peaks near 58% 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 31 | 32 | 32 | 33 | 34 | 35 | 36 | 36 | 37 | 38 | 39 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 53 | 54 | 56 | 57 | 58 |
| Rain chance (%) | |
|---|---|
| 1 | 31 |
| 2 | 32 |
| 3 | 32 |
| 4 | 33 |
| 5 | 34 |
| 6 | 35 |
| 7 | 36 |
| 8 | 36 |
| 9 | 37 |
| 10 | 38 |
| 11 | 39 |
| 12 | 39 |
| 13 | 40 |
| 14 | 41 |
| 15 | 42 |
| 16 | 43 |
| 17 | 44 |
| 18 | 45 |
| 19 | 46 |
| 20 | 47 |
| 21 | 48 |
| 22 | 49 |
| 23 | 50 |
| 24 | 51 |
| 25 | 52 |
| 26 | 53 |
| 27 | 53 |
| 28 | 54 |
| 29 | 56 |
| 30 | 57 |
| 31 | 58 |
Humidity in May
Most of May feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, May lands in the oppressive band about 43% of days. Sticky, muggy-or-worse air turns up on roughly 83% 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 10 | 9 | 8 | 7 | 6 | 6 | 5 | 5 | 5 | 5 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Comfortable (%) | 9 | 9 | 9 | 8 | 8 | 8 | 7 | 7 | 7 | 6 | 6 | 5 | 5 | 4 | 4 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Humid (%) | 22 | 21 | 20 | 19 | 18 | 17 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 11 | 10 | 9 | 9 | 8 | 7 | 6 | 6 | 5 | 5 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 2 |
| Muggy (%) | 45 | 46 | 47 | 47 | 48 | 48 | 48 | 48 | 47 | 47 | 46 | 45 | 44 | 43 | 41 | 40 | 38 | 35 | 33 | 31 | 29 | 26 | 24 | 22 | 20 | 18 | 16 | 15 | 13 | 12 | 11 |
| Oppressive (%) | 14 | 15 | 17 | 18 | 20 | 21 | 23 | 24 | 26 | 28 | 30 | 32 | 35 | 38 | 40 | 43 | 46 | 49 | 53 | 55 | 57 | 60 | 61 | 64 | 65 | 66 | 67 | 66 | 67 | 66 | 66 |
| Miserable (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 4 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 13 | 15 | 16 | 18 | 20 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 10 | 9 | 22 | 45 | 14 | 0 |
| 2 | 9 | 9 | 21 | 46 | 15 | 0 |
| 3 | 8 | 9 | 20 | 47 | 17 | 0 |
| 4 | 7 | 8 | 19 | 47 | 18 | 0 |
| 5 | 6 | 8 | 18 | 48 | 20 | 0 |
| 6 | 6 | 8 | 17 | 48 | 21 | 0 |
| 7 | 5 | 7 | 17 | 48 | 23 | 0 |
| 8 | 5 | 7 | 16 | 48 | 24 | 0 |
| 9 | 5 | 7 | 15 | 47 | 26 | 0 |
| 10 | 5 | 6 | 14 | 47 | 28 | 1 |
| 11 | 4 | 6 | 13 | 46 | 30 | 1 |
| 12 | 4 | 5 | 12 | 45 | 32 | 1 |
| 13 | 3 | 5 | 11 | 44 | 35 | 1 |
| 14 | 3 | 4 | 11 | 43 | 38 | 1 |
| 15 | 3 | 4 | 10 | 41 | 40 | 2 |
| 16 | 2 | 3 | 9 | 40 | 43 | 2 |
| 17 | 2 | 3 | 9 | 38 | 46 | 3 |
| 18 | 2 | 2 | 8 | 35 | 49 | 4 |
| 19 | 1 | 2 | 7 | 33 | 53 | 4 |
| 20 | 1 | 2 | 6 | 31 | 55 | 5 |
| 21 | 1 | 1 | 6 | 29 | 57 | 6 |
| 22 | 1 | 1 | 5 | 26 | 60 | 7 |
| 23 | 1 | 1 | 5 | 24 | 61 | 8 |
| 24 | 0 | 1 | 4 | 22 | 64 | 9 |
| 25 | 0 | 1 | 4 | 20 | 65 | 10 |
| 26 | 0 | 1 | 4 | 18 | 66 | 11 |
| 27 | 0 | 1 | 3 | 16 | 67 | 13 |
| 28 | 0 | 1 | 3 | 15 | 66 | 15 |
| 29 | 0 | 1 | 3 | 13 | 67 | 16 |
| 30 | 0 | 1 | 3 | 12 | 66 | 18 |
| 31 | 0 | 1 | 2 | 11 | 66 | 20 |
Wind in May
Winds average 9 km/h in May.
Across May, 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 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 | 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 |
| 31 | 9 | calm |
Sunrise & sunset in May
Daylight runs from about 13 hours at the start of May to 13 h 30 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 30 minutes over May. Sunrise moves from 5:26 AM to 5:10 AM, and sunset from 6:26 PM to 6:43 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 13.0 | 13.0 | 13.0 | 13.1 | 13.1 | 13.1 | 13.1 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.5 | 13.5 | 13.5 | 13.5 | 13.5 | 13.5 | 13.5 |
| Sunrise (AM) | 5:26 | 5:26 | 5:25 | 5:24 | 5:23 | 5:22 | 5:22 | 5:21 | 5:20 | 5:20 | 5:19 | 5:18 | 5:18 | 5:17 | 5:17 | 5:16 | 5:15 | 5:15 | 5:14 | 5:14 | 5:14 | 5:13 | 5:13 | 5:12 | 5:12 | 5:12 | 5:11 | 5:11 | 5:11 | 5:10 | 5:10 |
| Sunset (PM) | 6:26 | 6:27 | 6:27 | 6:28 | 6:28 | 6:29 | 6:30 | 6:30 | 6:31 | 6:31 | 6:32 | 6:32 | 6:33 | 6:33 | 6:34 | 6:35 | 6:35 | 6:36 | 6:36 | 6:37 | 6:37 | 6:38 | 6:38 | 6:39 | 6:40 | 6:40 | 6:41 | 6:41 | 6:42 | 6:42 | 6:43 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.0 | 5:26 | 6:26 |
| 2 | 13.0 | 5:26 | 6:27 |
| 3 | 13.0 | 5:25 | 6:27 |
| 4 | 13.1 | 5:24 | 6:28 |
| 5 | 13.1 | 5:23 | 6:28 |
| 6 | 13.1 | 5:22 | 6:29 |
| 7 | 13.1 | 5:22 | 6:30 |
| 8 | 13.2 | 5:21 | 6:30 |
| 9 | 13.2 | 5:20 | 6:31 |
| 10 | 13.2 | 5:20 | 6:31 |
| 11 | 13.2 | 5:19 | 6:32 |
| 12 | 13.2 | 5:18 | 6:32 |
| 13 | 13.3 | 5:18 | 6:33 |
| 14 | 13.3 | 5:17 | 6:33 |
| 15 | 13.3 | 5:17 | 6:34 |
| 16 | 13.3 | 5:16 | 6:35 |
| 17 | 13.3 | 5:15 | 6:35 |
| 18 | 13.3 | 5:15 | 6:36 |
| 19 | 13.4 | 5:14 | 6:36 |
| 20 | 13.4 | 5:14 | 6:37 |
| 21 | 13.4 | 5:14 | 6:37 |
| 22 | 13.4 | 5:13 | 6:38 |
| 23 | 13.4 | 5:13 | 6:38 |
| 24 | 13.4 | 5:12 | 6:39 |
| 25 | 13.5 | 5:12 | 6:40 |
| 26 | 13.5 | 5:12 | 6:40 |
| 27 | 13.5 | 5:11 | 6:41 |
| 28 | 13.5 | 5:11 | 6:41 |
| 29 | 13.5 | 5:11 | 6:42 |
| 30 | 13.5 | 5:10 | 6:42 |
| 31 | 13.5 | 5:10 | 6:43 |
Solar energy in May
Average shortwave solar energy reaching the ground each day in May, about 5.89 kWh/m².
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 — May's 5.89 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.0 | 6.0 | 6.0 | 6.0 | 5.9 | 5.9 | 5.8 | 5.8 | 5.8 | 5.8 | 5.7 | 5.7 | 5.7 | 5.6 | 5.6 | 5.6 | 5.6 | 5.5 | 5.5 | 5.5 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.2 | Intense |
| 2 | 6.2 | Intense |
| 3 | 6.2 | Intense |
| 4 | 6.2 | Intense |
| 5 | 6.2 | Intense |
| 6 | 6.2 | Intense |
| 7 | 6.1 | Intense |
| 8 | 6.1 | Intense |
| 9 | 6.1 | Intense |
| 10 | 6.1 | Intense |
| 11 | 6.1 | Intense |
| 12 | 6.0 | Intense |
| 13 | 6.0 | Intense |
| 14 | 6.0 | Bright |
| 15 | 6.0 | Bright |
| 16 | 5.9 | Bright |
| 17 | 5.9 | Bright |
| 18 | 5.8 | Bright |
| 19 | 5.8 | Bright |
| 20 | 5.8 | Bright |
| 21 | 5.8 | Bright |
| 22 | 5.7 | Bright |
| 23 | 5.7 | Bright |
| 24 | 5.7 | Bright |
| 25 | 5.6 | Bright |
| 26 | 5.6 | Bright |
| 27 | 5.6 | Bright |
| 28 | 5.6 | Bright |
| 29 | 5.5 | Bright |
| 30 | 5.5 | Bright |
| 31 | 5.5 | Bright |
Hazard calendar for Lahān
None of Lahān's seasonal hazards are active in May. 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 May a good time to visit Lahān?
Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
May is a weaker month for outdoor sightseeing in Lahān.
What to pack for Lahān in May
From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In May, Lahān sees daytime highs around 34°C and nights near 24°C. Pack light clothes. Worth having: rain gear and sun protection. About 14 days see rain.
UV index in Lahān in May
Clear-sky midday UV in May peaks around 8 (very high — sun protection essential). 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 May
Average fine-particle pollution (PM2.5) through the year — so you can see where May 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).