Biratnagar weather in May
In May, Biratnagar sees average daytime highs of 35°C and overnight lows near 25°C, with 118 mm of rain across 14.9 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 35°C through the month. The sky is clear or mostly clear about 49% 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 Biratnagar's 8th-clearest and 3rd-windiest month. For the whole year in context, see Biratnagar's year-round climate.
- Daytime high
- 35°
- 2nd warmest
- Overnight low
- 25°
- 8th coldest
- Rainfall
- 118 mm
- 14.9 wet days
- Daylight
- 13 h 18 min
- 5:13 AM – 6:31 PM
- Cloud cover
- 44%
- 8th clearest
- Wind
- 11 km/h
- 3rd windiest
- Solar energy
- 5.5 kWh/m²
- Travel score
- 2.5
- out of 10
Biratnagar is metropolitan city in Nepal.
- Founded
- 1914
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in May
Day-to-day highs hold fairly steady near 35°C through the month.
A typical May day in Biratnagar reaches about 35°C in the afternoon and slips back to 25°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 39°C. Set against its neighbours, May runs about 1°C cooler than 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 | 35 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 |
| Avg low (°C) | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 35 | 24 |
| 2 | 35 | 25 |
| 3 | 35 | 25 |
| 4 | 35 | 25 |
| 5 | 35 | 25 |
| 6 | 35 | 25 |
| 7 | 35 | 25 |
| 8 | 35 | 25 |
| 9 | 35 | 25 |
| 10 | 35 | 25 |
| 11 | 35 | 25 |
| 12 | 35 | 25 |
| 13 | 35 | 25 |
| 14 | 35 | 25 |
| 15 | 35 | 25 |
| 16 | 35 | 25 |
| 17 | 35 | 25 |
| 18 | 35 | 25 |
| 19 | 34 | 25 |
| 20 | 34 | 25 |
| 21 | 34 | 25 |
| 22 | 34 | 25 |
| 23 | 34 | 26 |
| 24 | 34 | 26 |
| 25 | 34 | 26 |
| 26 | 34 | 26 |
| 27 | 34 | 26 |
| 28 | 34 | 26 |
| 29 | 34 | 26 |
| 30 | 34 | 26 |
| 31 | 34 | 26 |
How May really feels in Biratnagar
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.
Biratnagar 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 | 24° / 11° | 10 | 1.4 | 10.5 | 9.0 |
| Feb | 27° / 14° | 12 | 1.7 | 11.1 | 8.3 |
| Mar | 32° / 19° | 12 | 2.4 | 11.8 | 4.9 |
| Apr | 35° / 23° | 35 | 6.2 | 12.6 | 2.7 |
| May | 35° / 25° | 118 | 14.9 | 13.3 | 2.5 |
| Jun | 33° / 26° | 306 | 24.4 | 13.6 | 2.3 |
| Jul | 32° / 26° | 412 | 29.4 | 13.5 | 2.2 |
| Aug | 32° / 26° | 346 | 28.4 | 12.9 | 2.2 |
| Sep | 32° / 26° | 278 | 23.2 | 12.2 | 2.9 |
| Oct | 31° / 22° | 77 | 6.2 | 11.4 | 5.2 |
| Nov | 29° / 17° | 4 | 0.6 | 10.7 | 7.5 |
| Dec | 25° / 13° | 4 | 0.5 | 10.4 | 9.1 |
Cloud cover in May
The sky is clear or mostly clear about 49% of the time in May.
Beyond those clear spells, partly cloudy skies cover about 26% of May, with mostly cloudy or overcast conditions the remaining 26%. 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 (%) | 76 | 76 | 76 | 78 | 78 | 79 | 79 | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 79 | 78 | 77 | 75 | 74 | 72 | 72 | 71 | 69 | 69 | 68 | 68 | 67 | 66 | 66 | 64 | 64 |
| Cloudier (%) | 24 | 24 | 24 | 22 | 22 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 22 | 23 | 25 | 26 | 28 | 28 | 29 | 31 | 31 | 32 | 32 | 33 | 34 | 34 | 36 | 36 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 76 | 24 |
| 2 | 76 | 24 |
| 3 | 76 | 24 |
| 4 | 78 | 22 |
| 5 | 78 | 22 |
| 6 | 79 | 21 |
| 7 | 79 | 21 |
| 8 | 80 | 20 |
| 9 | 80 | 20 |
| 10 | 80 | 20 |
| 11 | 80 | 20 |
| 12 | 80 | 20 |
| 13 | 80 | 20 |
| 14 | 80 | 20 |
| 15 | 79 | 21 |
| 16 | 78 | 22 |
| 17 | 77 | 23 |
| 18 | 75 | 25 |
| 19 | 74 | 26 |
| 20 | 72 | 28 |
| 21 | 72 | 28 |
| 22 | 71 | 29 |
| 23 | 69 | 31 |
| 24 | 69 | 31 |
| 25 | 68 | 32 |
| 26 | 68 | 32 |
| 27 | 67 | 33 |
| 28 | 66 | 34 |
| 29 | 66 | 34 |
| 30 | 64 | 36 |
| 31 | 64 | 36 |
Chance of precipitation in May
Biratnagar gets around 118 mm of rain over 14.9 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 48% and peaks near 62% 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 (%) | 34 | 35 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 56 | 57 | 58 | 59 | 60 | 61 | 62 |
| Rain chance (%) | |
|---|---|
| 1 | 34 |
| 2 | 35 |
| 3 | 35 |
| 4 | 36 |
| 5 | 37 |
| 6 | 38 |
| 7 | 39 |
| 8 | 40 |
| 9 | 41 |
| 10 | 42 |
| 11 | 43 |
| 12 | 44 |
| 13 | 45 |
| 14 | 46 |
| 15 | 47 |
| 16 | 48 |
| 17 | 49 |
| 18 | 50 |
| 19 | 51 |
| 20 | 52 |
| 21 | 53 |
| 22 | 54 |
| 23 | 55 |
| 24 | 56 |
| 25 | 56 |
| 26 | 57 |
| 27 | 58 |
| 28 | 59 |
| 29 | 60 |
| 30 | 61 |
| 31 | 62 |
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 55% of days. Sticky, muggy-or-worse air turns up on roughly 94% 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 (%) | 4 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Comfortable (%) | 5 | 5 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Humid (%) | 9 | 9 | 8 | 7 | 7 | 6 | 6 | 5 | 5 | 5 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Muggy (%) | 48 | 47 | 46 | 44 | 42 | 41 | 39 | 37 | 35 | 33 | 31 | 29 | 27 | 25 | 23 | 21 | 19 | 17 | 16 | 14 | 12 | 11 | 9 | 8 | 7 | 6 | 5 | 5 | 4 | 4 | 3 |
| Oppressive (%) | 34 | 36 | 39 | 41 | 43 | 46 | 49 | 51 | 53 | 54 | 56 | 59 | 61 | 61 | 62 | 64 | 64 | 64 | 64 | 64 | 64 | 62 | 63 | 62 | 60 | 59 | 58 | 55 | 53 | 51 | 49 |
| Miserable (%) | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 3 | 4 | 5 | 6 | 7 | 9 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 25 | 27 | 29 | 32 | 34 | 36 | 39 | 42 | 44 | 47 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 4 | 5 | 9 | 48 | 34 | 1 |
| 2 | 3 | 5 | 9 | 47 | 36 | 1 |
| 3 | 2 | 4 | 8 | 46 | 39 | 1 |
| 4 | 2 | 4 | 7 | 44 | 41 | 1 |
| 5 | 2 | 4 | 7 | 42 | 43 | 2 |
| 6 | 1 | 3 | 6 | 41 | 46 | 2 |
| 7 | 1 | 3 | 6 | 39 | 49 | 2 |
| 8 | 1 | 3 | 5 | 37 | 51 | 3 |
| 9 | 1 | 3 | 5 | 35 | 53 | 3 |
| 10 | 1 | 3 | 5 | 33 | 54 | 4 |
| 11 | 1 | 3 | 4 | 31 | 56 | 5 |
| 12 | 0 | 2 | 4 | 29 | 59 | 6 |
| 13 | 0 | 2 | 3 | 27 | 61 | 7 |
| 14 | 0 | 2 | 3 | 25 | 61 | 9 |
| 15 | 0 | 2 | 3 | 23 | 62 | 10 |
| 16 | 0 | 1 | 2 | 21 | 64 | 12 |
| 17 | 0 | 1 | 2 | 19 | 64 | 14 |
| 18 | 0 | 1 | 2 | 17 | 64 | 16 |
| 19 | 0 | 1 | 1 | 16 | 64 | 18 |
| 20 | 0 | 1 | 1 | 14 | 64 | 20 |
| 21 | 0 | 1 | 1 | 12 | 64 | 22 |
| 22 | 0 | 1 | 1 | 11 | 62 | 25 |
| 23 | 0 | 0 | 1 | 9 | 63 | 27 |
| 24 | 0 | 0 | 1 | 8 | 62 | 29 |
| 25 | 0 | 0 | 1 | 7 | 60 | 32 |
| 26 | 0 | 0 | 1 | 6 | 59 | 34 |
| 27 | 0 | 0 | 1 | 5 | 58 | 36 |
| 28 | 0 | 0 | 1 | 5 | 55 | 39 |
| 29 | 0 | 0 | 1 | 4 | 53 | 42 |
| 30 | 0 | 0 | 1 | 4 | 51 | 44 |
| 31 | 0 | 0 | 1 | 3 | 49 | 47 |
Wind in May
Winds average 11 km/h in May.
Across May, daily wind ranges from about 11 km/h on the calmest days to 11 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) | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| 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 | 11 | calm |
| 2 | 11 | calm |
| 3 | 11 | calm |
| 4 | 11 | calm |
| 5 | 11 | calm |
| 6 | 11 | calm |
| 7 | 11 | calm |
| 8 | 11 | calm |
| 9 | 11 | calm |
| 10 | 11 | calm |
| 11 | 11 | calm |
| 12 | 11 | calm |
| 13 | 11 | calm |
| 14 | 11 | calm |
| 15 | 11 | calm |
| 16 | 11 | calm |
| 17 | 11 | calm |
| 18 | 11 | calm |
| 19 | 11 | calm |
| 20 | 11 | calm |
| 21 | 11 | calm |
| 22 | 11 | calm |
| 23 | 11 | calm |
| 24 | 11 | calm |
| 25 | 11 | calm |
| 26 | 11 | calm |
| 27 | 11 | calm |
| 28 | 11 | calm |
| 29 | 11 | calm |
| 30 | 11 | calm |
| 31 | 11 | 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 5:24 AM to 5:08 AM, and sunset from 6:23 PM to 6:39 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 | 13.1 | 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 |
| Sunrise (AM) | 5:24 | 5:23 | 5:22 | 5:21 | 5:20 | 5:20 | 5:19 | 5:18 | 5:18 | 5:17 | 5:16 | 5:16 | 5:15 | 5:14 | 5:14 | 5:13 | 5:13 | 5:12 | 5:12 | 5:11 | 5:11 | 5:10 | 5:10 | 5:10 | 5:09 | 5:09 | 5:09 | 5:08 | 5:08 | 5:08 | 5:08 |
| Sunset (PM) | 6:23 | 6:23 | 6:24 | 6:24 | 6:25 | 6:25 | 6:26 | 6:27 | 6:27 | 6:28 | 6:28 | 6:29 | 6:29 | 6:30 | 6:30 | 6:31 | 6:32 | 6:32 | 6:33 | 6:33 | 6:34 | 6:34 | 6:35 | 6:35 | 6:36 | 6:36 | 6:37 | 6:37 | 6:38 | 6:39 | 6:39 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.0 | 5:24 | 6:23 |
| 2 | 13.0 | 5:23 | 6:23 |
| 3 | 13.0 | 5:22 | 6:24 |
| 4 | 13.1 | 5:21 | 6:24 |
| 5 | 13.1 | 5:20 | 6:25 |
| 6 | 13.1 | 5:20 | 6:25 |
| 7 | 13.1 | 5:19 | 6:26 |
| 8 | 13.1 | 5:18 | 6:27 |
| 9 | 13.2 | 5:18 | 6:27 |
| 10 | 13.2 | 5:17 | 6:28 |
| 11 | 13.2 | 5:16 | 6:28 |
| 12 | 13.2 | 5:16 | 6:29 |
| 13 | 13.2 | 5:15 | 6:29 |
| 14 | 13.3 | 5:14 | 6:30 |
| 15 | 13.3 | 5:14 | 6:30 |
| 16 | 13.3 | 5:13 | 6:31 |
| 17 | 13.3 | 5:13 | 6:32 |
| 18 | 13.3 | 5:12 | 6:32 |
| 19 | 13.3 | 5:12 | 6:33 |
| 20 | 13.4 | 5:11 | 6:33 |
| 21 | 13.4 | 5:11 | 6:34 |
| 22 | 13.4 | 5:10 | 6:34 |
| 23 | 13.4 | 5:10 | 6:35 |
| 24 | 13.4 | 5:10 | 6:35 |
| 25 | 13.4 | 5:09 | 6:36 |
| 26 | 13.5 | 5:09 | 6:36 |
| 27 | 13.5 | 5:09 | 6:37 |
| 28 | 13.5 | 5:08 | 6:37 |
| 29 | 13.5 | 5:08 | 6:38 |
| 30 | 13.5 | 5:08 | 6:39 |
| 31 | 13.5 | 5:08 | 6:39 |
Solar energy in May
Average shortwave solar energy reaching the ground each day in May, about 5.5 kWh/m².
For context, solar energy here swings from a low near 3.65 kWh/m² to a high of 6.09 kWh/m² in April across the year — May's 5.5 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) | 5.9 | 5.9 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.7 | 5.7 | 5.7 | 5.6 | 5.6 | 5.6 | 5.5 | 5.5 | 5.4 | 5.4 | 5.3 | 5.3 | 5.3 | 5.2 | 5.2 | 5.2 | 5.2 | 5.1 | 5.1 | 5.1 | 5.1 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.9 | Bright |
| 2 | 5.9 | Bright |
| 3 | 5.8 | Bright |
| 4 | 5.8 | Bright |
| 5 | 5.8 | Bright |
| 6 | 5.8 | Bright |
| 7 | 5.8 | Bright |
| 8 | 5.8 | Bright |
| 9 | 5.8 | Bright |
| 10 | 5.8 | Bright |
| 11 | 5.7 | Bright |
| 12 | 5.7 | Bright |
| 13 | 5.7 | Bright |
| 14 | 5.6 | Bright |
| 15 | 5.6 | Bright |
| 16 | 5.6 | Bright |
| 17 | 5.5 | Bright |
| 18 | 5.5 | Bright |
| 19 | 5.4 | Bright |
| 20 | 5.4 | Bright |
| 21 | 5.3 | Bright |
| 22 | 5.3 | Bright |
| 23 | 5.3 | Bright |
| 24 | 5.2 | Bright |
| 25 | 5.2 | Bright |
| 26 | 5.2 | Bright |
| 27 | 5.2 | Bright |
| 28 | 5.1 | Bright |
| 29 | 5.1 | Bright |
| 30 | 5.1 | Bright |
| 31 | 5.1 | Bright |
Hazard calendar for Biratnagar
None of Biratnagar's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Biratnagar's monsoon runs June–September, when most of the year's rain falls.
Is May a good time to visit Biratnagar?
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 Biratnagar.
What to pack for Biratnagar in May
From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In May, Biratnagar sees daytime highs around 35°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 15 days see rain.
UV index in Biratnagar in May
Clear-sky midday UV in May peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Biratnagar peaks around July 18 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 20 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 | 8 | 7 | 8 | 7 | 11 | 9 | 10 | 6 | 3 | 4 |
| Level | Moderate | Moderate | Very high | High | Very high | Very high | Extreme | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 4 | Moderate |
| Mar | 8 | Very high |
| Apr | 7 | High |
| May | 8 | Very high |
| Jun | 7 | Very high |
| Jul | 11 | Extreme |
| Aug | 9 | Very high |
| Sep | 10 | Very high |
| Oct | 6 | High |
| Nov | 3 | Moderate |
| Dec | 4 | Moderate |
Air quality in Biratnagar 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 Biratnagar is worst in January — around 243 µg/m³ PM2.5 (very unhealthy), about 5.3× the cleanest month (July, 46 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) | 243 | 196 | 138 | 97 | 75 | 62 | 46 | 58 | 73 | 124 | 191 | 231 |
| Level | Very unhealthy | Very unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Poor | Unhealthy | Unhealthy | Unhealthy | Very unhealthy | Very unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 243 | Very unhealthy |
| Feb | 196 | Very unhealthy |
| Mar | 138 | Unhealthy |
| Apr | 97 | Unhealthy |
| May | 75 | Unhealthy |
| Jun | 62 | Unhealthy |
| Jul | 46 | Poor |
| Aug | 58 | Unhealthy |
| Sep | 73 | Unhealthy |
| Oct | 124 | Unhealthy |
| Nov | 191 | Very unhealthy |
| Dec | 231 | Very unhealthy |
Where is Biratnagar?
Biratnagar sits at 26.5°N, 87.3°E, 74 m above sea level, in Nepal. The nearest listed city is Inaruwa, 21 km away.
Topography around Biratnagar
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Biratnagar.
Within 3 km, the terrain around Biratnagar has only modest variations in elevation — a maximum elevation change of 16 m around an average of 71 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 47 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,727 m.
The land around Biratnagar is covered by cropland (44%) and artificial surfaces (43%) within 3 km, cropland (75%) within 16 km, and cropland (59%) and trees (35%) 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 Biratnagar (26.455°, 87.2701°, elevation 74 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).