Biratnagar weather in April

In April, Biratnagar sees average daytime highs of 35°C and overnight lows near 23°C, with 35 mm of rain across 6.2 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 59% of the time in April, and the air most often feels muggy.

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 Biratnagar's 7th-clearest and 3rd-windiest month. For the whole year in context, see Biratnagar's year-round climate.

Daytime high
35°
1st warmest
Overnight low
23°
7th coldest
Rainfall
35 mm
6.2 wet days
Daylight
12 h 36 min
5:37 AM – 6:15 PM
Cloud cover
36%
7th clearest
Wind
11 km/h
3rd windiest
Solar energy
6.09 kWh/m²
Travel score
2.7
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 April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 35°C through the month.

A typical April day in Biratnagar reaches about 35°C in the afternoon and slips back to 23°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 40°C. Set against its neighbours, April runs about 3°C warmer than March and about 1°C warmer than May.

20°30°40°151015202530
Avg high (°C)Avg low (°C)
13522
23522
33522
43522
53522
63522
73522
83522
93523
103523
113623
123623
133623
143623
153623
163623
173624
183624
193624
203624
213624
223624
233524
243524
253524
263524
273524
283524
293524
303524

How April really feels in Biratnagar

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.

Days feeling ≥ 32°C
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in April is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Biratnagar 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.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 11°101.410.59.0
Feb27° / 14°121.711.18.3
Mar32° / 19°122.411.84.9
Apr35° / 23°356.212.62.7
May35° / 25°11814.913.32.5
Jun33° / 26°30624.413.62.3
Jul32° / 26°41229.413.52.2
Aug32° / 26°34628.412.92.2
Sep32° / 26°27823.212.22.9
Oct31° / 22°776.211.45.2
Nov29° / 17°40.610.77.5
Dec25° / 13°40.510.49.1

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 59% 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 19%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18416
28416
38317
48218
58218
68218
78218
88218
98218
108218
118218
128218
138218
148218
158218
168119
178119
188119
198119
208020
218020
227921
237921
247822
257822
267723
277723
287723
297624
307624

Chance of precipitation in April

Any precipitation

Biratnagar gets around 35 mm of rain over 6.2 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 22% and peaks near 33% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
115
215
315
415
516
616
716
816
916
1017
1117
1218
1318
1419
1520
1620
1721
1822
1923
2024
2125
2225
2326
2427
2528
2629
2730
2831
2932
3033

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

Most of April feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, April lands in the muggy band about 34% of days. Sticky, muggy-or-worse air turns up on roughly 45% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
13221291620
23120291720
33020291820
43019291930
52919292030
62918292130
72818292230
82817282340
92717282440
102617272550
112516262750
122416262860
132316252970
142216243180
152115233280
162015233490
1719142235100
1818142137110
1916132039120
2015121940130
2114121842150
2212111744160
2311101645180
2410101546190
25991447210
26881348230
27771249250
28671149270
29561149290
30461049311

Wind in April

Winds average 11 km/h in April.

Across April, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

Sunrise & sunset in April

DaylightNight

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 5:54 AM to 5:24 AM, and sunset from 6:08 PM to 6:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:546:08
212.35:526:08
312.35:516:09
412.35:506:09
512.35:496:10
612.45:486:10
712.45:476:10
812.45:466:11
912.45:456:11
1012.55:446:12
1112.55:436:12
1212.55:426:13
1312.55:416:13
1412.65:396:14
1512.65:386:14
1612.65:376:15
1712.65:366:15
1812.75:356:16
1912.75:346:16
2012.75:336:17
2112.75:326:17
2212.85:326:18
2312.85:316:18
2412.85:306:19
2512.85:296:19
2612.95:286:20
2712.95:276:21
2812.95:266:21
2912.95:256:22
3013.05:246:22

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 6.09 kWh/m² — the sunniest month for solar.

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 — April's 6.09 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.0Bright
26.0Intense
36.0Intense
46.0Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.1Intense
126.1Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.1Intense
186.1Intense
196.1Intense
206.1Intense
216.0Intense
226.0Intense
236.0Intense
246.0Intense
256.0Bright
266.0Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
Planning a trip in April

Hazard calendar for Biratnagar

In seasonPeak

None of Biratnagar's seasonal hazards are active in April. 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.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is April a good time to visit Biratnagar?

Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

2.7
Sightseeing
8th-best month of the year
6.0
Beach & pool
7th-best month of the year

April is a weaker month for outdoor sightseeing in Biratnagar.

What to pack for Biratnagar in April

From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In April, Biratnagar sees daytime highs around 35°C and nights near 23°C. Pack light clothes and sun protection. About 6 days see rain.

light clothessun protection

UV index in Biratnagar in April

LowModerateHighVery highExtreme

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 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highVery highExtremeVery highModerateJul 18UV 11Nov 20UV 4
UV index (midday)Level
Jan4Moderate
Feb4Moderate
Mar8Very high
Apr7High
May8Very high
Jun7Very high
Jul11Extreme
Aug9Very high
Sep10Very high
Oct6High
Nov3Moderate
Dec4Moderate

Air quality in Biratnagar in April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April 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).

0306090120150180210240270JanFebMarAprMayJunJulAugSepOctNovDecVery unhealthyUnhealthyPoorUnhealthyVery unhealthyJan 12241 µg/m³Jul 1747 µg/m³
PM2.5 (µg/m³)Level
Jan243Very unhealthy
Feb196Very unhealthy
Mar138Unhealthy
Apr97Unhealthy
May75Unhealthy
Jun62Unhealthy
Jul46Poor
Aug58Unhealthy
Sep73Unhealthy
Oct124Unhealthy
Nov191Very unhealthy
Dec231Very unhealthy
Location & terrain

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.

RājbirājDhankutāTriyugaBhadrapurIlām

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.

3 km
16 m
16 km
47 m
80 km
2,727 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Inaruwa 21 km · Īṭahari̇̄ 23 km · Dharān 40 km · Rājbirāj 53 km · Dhankutā 59 km · Triyuga 68 km · Bhadrapur 83 km · Ilām 83 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
Hindu 81%Buddhist 8%Muslim 5%Kirat 3%

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).