Birgañj weather in December

In December, Birgañj sees average daytime highs of 24°C and overnight lows near 12°C, with 7 mm of rain across 0.6 wet days and about 10.3 hours of daylight. It is the 11th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 26°C in the first days to 23°C by the end. The sky is clear or mostly clear about 79% of the time in December, and the air most often feels dry.

Daylight stretches from about 10 h 24 min at the start of December to 10 h 18 min by month's end. Set against the rest of the year, December is Birgañj's 2nd-clearest and 10th-windiest month. For the whole year in context, see Birgañj's year-round climate.

Daytime high
24°
11th warmest
Overnight low
12°
2nd coldest
Rainfall
7 mm
0.6 wet days
Daylight
10 h 18 min
6:52 AM – 5:11 PM
Cloud cover
20%
2nd clearest
Wind
5 km/h
10th windiest
Solar energy
3.82 kWh/m²
Travel score
9.1
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 December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 26°C in the first days to 23°C by the end.

A typical December day in Birgañj reaches about 24°C in the afternoon and slips back to 12°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 27°C. Set against its neighbours, December runs about 4°C cooler than November and about 2°C warmer than January.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12713
22613
32613
42613
52613
62613
72613
82612
92512
102512
112512
122512
132512
142512
152412
162411
172411
182411
192411
202411
212411
222311
232311
242311
252310
262310
272310
282310
292310
302310
312310

How December really feels in Birgañj

Once humidity and wind are folded in, December averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Birgañj weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 11th-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 December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 79% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 9% of December, with mostly cloudy or overcast conditions the remaining 12%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
19010
28911
38911
48812
58812
68812
78812
88812
98713
108713
118713
128713
138713
148812
158812
168812
178812
188812
198812
208812
218812
228812
238812
248812
258812
268812
278812
288812
298812
308713
318713

Chance of precipitation in December

Any precipitation

Birgañj gets around 7 mm of rain over 0.6 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 2% and peaks near 4% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
11
21
31
41
51
61
72
82
92
102
112
122
132
142
152
162
172
182
192
202
212
222
232
243
253
263
273
284
294
304
314

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the dry band about 65% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
1365212
2375211
3385210
440519
541518
643497
745487
848466
950455
1052435
1155414
1257394
1360373
1462353
1565332
1668302
1771281
1873261
1975241
2076231
2179210
2280200
2381190
2482180
2583170
2684160
2785150
2886140
2986131
3087121
3188111

Wind in December

Winds average 5 km/h in December.

Across December, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 24 min at the start of December to 10 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:43 AM to 6:59 AM, and sunset from 5:08 PM to 5:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.46:435:08
210.46:435:08
310.46:445:08
410.46:455:08
510.46:455:08
610.46:465:08
710.46:475:08
810.46:475:09
910.36:485:09
1010.36:495:09
1110.36:495:09
1210.36:505:10
1310.36:515:10
1410.36:515:10
1510.36:525:11
1610.36:525:11
1710.36:535:11
1810.36:545:12
1910.36:545:12
2010.36:555:12
2110.36:555:13
2210.36:565:13
2310.36:565:14
2410.36:565:14
2510.36:575:15
2610.36:575:15
2710.36:585:16
2810.36:585:16
2910.36:585:17
3010.36:595:18
3110.36:595:18

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.82 kWh/m² — the year's lowest.

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 — December's 3.82 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
14.0Moderate
23.9Moderate
33.9Moderate
43.9Moderate
53.9Moderate
63.9Moderate
73.9Moderate
83.9Moderate
93.8Moderate
103.8Moderate
113.8Moderate
123.8Moderate
133.8Moderate
143.8Moderate
153.8Moderate
163.8Moderate
173.8Moderate
183.8Moderate
193.8Moderate
203.8Moderate
213.8Moderate
223.8Moderate
233.8Moderate
243.8Moderate
253.8Moderate
263.8Moderate
273.8Moderate
283.8Moderate
293.8Moderate
303.8Moderate
313.8Moderate
Planning a trip in December

Hazard calendar for Birgañj

In seasonPeak

None of Birgañj's seasonal hazards are active in December. 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 December a good time to visit Birgañj?

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

9.1
Sightseeing
1st-best month of the year
7.7
Beach & pool
5th-best month of the year

December is one of the better times to visit Birgañj for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Birgañj in December

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

In December, Birgañj sees daytime highs around 24°C and nights near 12°C. Worth packing: light clothes.

light clothes

UV index in Birgañj in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 4 — 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 December

GoodModeratePoorUnhealthyVery unhealthy

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