Birgañj weather in May

In May, Birgañj sees average daytime highs of 37°C and overnight lows near 26°C, with 76 mm of rain across 11.5 wet days and about 13.3 hours of daylight. It is the 1st-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 37°C through the month. The sky is clear or mostly clear about 67% 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 36 min by month's end. Set against the rest of the year, May is Birgañj's 8th-clearest and 3rd-windiest month. For the whole year in context, see Birgañj's year-round climate.

Daytime high
37°
1st warmest
Overnight low
26°
9th coldest
Rainfall
76 mm
11.5 wet days
Daylight
13 h 18 min
5:22 AM – 6:42 PM
Cloud cover
34%
8th clearest
Wind
9 km/h
3rd windiest
Solar energy
6.48 kWh/m²
Travel score
1.7
out of 10

Birgañj is Metropolitan city in Parsa District, Madhesh Province, Nepal.

Density
3,566/km²
people per km²
Founded
1897

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 37°C through the month.

A typical May day in Birgañj reaches about 37°C in the afternoon and slips back to 26°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 41°C. Set against its neighbours, May runs on par with April and about 2°C warmer than June.

20°25°30°35°40°45°151015202531
Avg high (°C)Avg low (°C)
13724
23725
33725
43725
53725
63725
73725
83725
93725
103725
113725
123725
133725
143726
153726
163726
173726
183726
193726
203726
213726
223726
233626
243626
253626
263626
273626
283626
293626
303626
313626

How May really feels in Birgañj

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.

Days feeling ≥ 32°C
31
26 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

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

Birgañj weather by month

How May compares with the rest of the year at a glance. May is the 1st-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 10°131.810.58.7
Feb26° / 13°172.1118.4
Mar32° / 17°122.111.85.0
Apr37° / 23°265.212.62.1
May37° / 26°7611.513.31.7
Jun35° / 27°22520.513.71.9
Jul33° / 27°44228.613.52.1
Aug32° / 27°34728.2132.2
Sep32° / 26°22522.712.22.8
Oct31° / 22°45511.45.2
Nov29° / 16°50.410.77.7
Dec24° / 12°70.610.39.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 67% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 19% of May, with mostly cloudy or overcast conditions the remaining 13%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18515
28515
38713
48713
58713
68812
78812
88812
98812
108812
118911
128911
138911
148911
158812
168812
178812
188713
198713
208713
218614
228614
238614
248614
258515
268515
278515
288416
298416
308317
318218

Chance of precipitation in May

Any precipitation

Birgañj gets around 76 mm of rain over 11.5 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 37% and peaks near 46% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
128
229
329
429
529
630
730
830
931
1031
1132
1232
1333
1434
1535
1636
1737
1838
1939
2040
2141
2242
2342
2443
2544
2644
2745
2845
2946
3046
3146

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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 82% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11271648160
21171647180
31071647201
4961647211
5861546231
6761546251
7761445271
8661444291
9661343311
10561341332
11561340352
12461238372
13461137393
14361135423
15361033444
16251032465
1725930486
1815828517
1915826528
2014724559
21147225610
22146215711
23036195913
24036185914
25035166016
26035155918
27034145920
28034135822
29034125724
30033125626
31033115429

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.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 hours at the start of May to 13 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over May. Sunrise moves from 5:32 AM to 5:16 AM, and sunset from 6:33 PM to 6:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:326:33
213.05:326:34
313.15:316:34
413.15:306:35
513.15:296:35
613.15:286:36
713.15:286:36
813.25:276:37
913.25:266:38
1013.25:266:38
1113.25:256:39
1213.25:246:39
1313.35:246:40
1413.35:236:40
1513.35:226:41
1613.35:226:42
1713.35:216:42
1813.45:216:43
1913.45:206:43
2013.45:206:44
2113.45:196:44
2213.45:196:45
2313.45:196:45
2413.55:186:46
2513.55:186:47
2613.55:176:47
2713.55:176:48
2813.55:176:48
2913.55:176:49
3013.55:166:49
3113.65:166:50

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.48 kWh/m².

For context, solar energy here swings from a low near 3.82 kWh/m² to a high of 6.66 kWh/m² in April across the year — May's 6.48 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.7Intense
26.7Intense
36.7Intense
46.7Intense
56.7Intense
66.7Intense
76.7Intense
86.6Intense
96.6Intense
106.6Intense
116.6Intense
126.6Intense
136.6Intense
146.5Intense
156.5Intense
166.5Intense
176.5Intense
186.5Intense
196.4Intense
206.4Intense
216.4Intense
226.3Intense
236.3Intense
246.3Intense
256.3Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
316.1Intense
Planning a trip in May

Hazard calendar for Birgañj

In seasonPeak

None of Birgañj's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Birgañj's monsoon runs June–September, when most of the year's rain falls.

Birgañj sees seasonal dust haze (June), heaviest in June.

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

Is May a good time to visit Birgañj?

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

1.7
Sightseeing
12th-best month of the year
4.6
Beach & pool
9th-best month of the year

May is a weaker month for outdoor sightseeing in Birgañj.

What to pack for Birgañj in May

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

In May, Birgañj sees daytime highs around 37°C and nights near 26°C. Pack light clothes and sun protection. Worth having: rain gear. About 12 days see rain.

light clothessun protectionrain gear

UV index in Birgañj in May

LowModerateHighVery highExtreme

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 Birgañj peaks around July 19 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 22 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highExtremeVery highModerateJul 19UV 11Nov 22UV 4
UV index (midday)Level
Jan4Moderate
Feb4Moderate
Mar9Very high
Apr8Very high
May8Very high
Jun7Very high
Jul11Extreme
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec4Moderate

Air quality in Birgañj in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Birgañj is worst in January — around 257 µg/m³ PM2.5 (very unhealthy), about 4.7× the cleanest month (July, 54 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0306090120150180210240270JanFebMarAprMayJunJulAugSepOctNovDecVery unhealthyUnhealthyVery unhealthyJan 10256 µg/m³Jul 1956 µg/m³
PM2.5 (µg/m³)Level
Jan257Very unhealthy
Feb211Very unhealthy
Mar167Very unhealthy
Apr124Unhealthy
May89Unhealthy
Jun80Unhealthy
Jul54Poor
Aug67Unhealthy
Sep85Unhealthy
Oct146Unhealthy
Nov219Very unhealthy
Dec252Very unhealthy
Location & terrain

Where is Birgañj?

Birgañj sits at 27.0°N, 84.9°E, 89 m above sea level, in Nepal. The nearest listed city is Hetauda, 48 km away.

HetaudaGaurMalaṅgawāKi̇̄rtipurPatanChitwanKathmanduMadhyapur Thimi

Topography around Birgañj

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Birgañj.

Within 3 km, the terrain around Birgañj has only modest variations in elevation — a maximum elevation change of 15 m around an average of 83 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 66 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,848 m.

The land around Birgañj is covered by cropland (49%) and artificial surfaces (33%) within 3 km, cropland (80%) within 16 km, and cropland (56%) and trees (39%) within 80 km.

3 km
15 m
16 km
66 m
80 km
2,848 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Hetauda 48 km · Gaur 48 km · Malaṅgawā 70 km · Ki̇̄rtipur 83 km · Patan 85 km · Chitwan 86 km · Kathmandu 88 km · Madhyapur Thimi 89 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 Birgañj (27.0174°, 84.8805°, elevation 89 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).