Janakpur weather in December

In December, Janakpur sees average daytime highs of 25°C and overnight lows near 12°C, with 5 mm of rain across 0.7 wet days and about 10.4 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 81% 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 Janakpur's 2nd-clearest and 10th-windiest month. For the whole year in context, see Janakpur's year-round climate.

Daytime high
25°
11th warmest
Overnight low
12°
2nd coldest
Rainfall
5 mm
0.7 wet days
Daylight
10 h 18 min
6:48 AM – 5:07 PM
Cloud cover
19%
2nd clearest
Wind
5 km/h
10th windiest
Solar energy
3.75 kWh/m²
Travel score
9.1
out of 10

Janakpur is city in Dhanusha District, Nepal.

Density
1,950/km²
people per km²
Founded
1800

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 Janakpur reaches about 25°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 22°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)
12714
22714
32614
42613
52613
62613
72613
82613
92613
102513
112513
122512
132512
142512
152512
162512
172412
182412
192412
202411
212411
222411
232411
242311
252311
262311
272311
282311
292311
302311
312310

How December really feels in Janakpur

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.

Janakpur 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°141.910.58.7
Feb27° / 13°13211.18.3
Mar32° / 18°112.111.84.9
Apr36° / 23°275.112.62.3
May36° / 26°8711.713.32.0
Jun34° / 27°22920.713.62.1
Jul32° / 26°39826.813.52.3
Aug32° / 26°27026.112.92.4
Sep32° / 25°22521.412.23.0
Oct31° / 22°535.511.45.3
Nov29° / 16°30.410.77.7
Dec25° / 12°50.710.49.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 81% 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 10%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1937
2937
3937
4937
5937
6928
7928
8928
9928
10919
119010
129010
138911
148911
158911
168911
178911
188911
198911
208911
218911
228911
238911
248911
258911
268911
278911
288812
298812
308812
318812

Chance of precipitation in December

Any precipitation

Janakpur gets around 5 mm of rain over 0.7 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 5% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
11
21
31
41
51
62
72
82
92
102
112
122
132
142
152
162
172
182
192
202
212
222
233
243
253
264
274
284
295
305
315

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 67% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
1395011
2405010
342499
443488
545488
647477
749456
850446
953425
1055414
1157394
1260373
1362353
1465332
1566322
1668302
1771281
1873261
1975241
2077221
2179210
2281190
2382180
2483170
2584160
2685150
2785150
2886140
2987130
3088120
3189110

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 6:38 AM to 6:54 AM, and sunset from 5:04 PM to 5:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.46:385:04
210.46:395:04
310.46:395:04
410.46:405:04
510.46:415:05
610.46:415:05
710.46:425:05
810.46:435:05
910.46:435:05
1010.46:445:06
1110.46:455:06
1210.36:455:06
1310.36:465:06
1410.36:465:07
1510.36:475:07
1610.36:485:07
1710.36:485:08
1810.36:495:08
1910.36:495:08
2010.36:505:09
2110.36:505:09
2210.36:515:10
2310.36:515:10
2410.36:525:11
2510.36:525:11
2610.36:525:12
2710.36:535:12
2810.36:535:13
2910.36:545:14
3010.36:545:14
3110.36:545:15

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.75 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.75 kWh/m² to a high of 6.59 kWh/m² in April across the year — December's 3.75 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
33.9Moderate
43.8Moderate
53.8Moderate
63.8Moderate
73.8Moderate
83.8Moderate
93.8Moderate
103.8Moderate
113.8Moderate
123.7Moderate
133.7Moderate
143.7Moderate
153.7Moderate
163.7Moderate
173.7Moderate
183.7Moderate
193.7Moderate
203.7Moderate
213.7Moderate
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 Janakpur

In seasonPeak

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

Janakpur'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 December a good time to visit Janakpur?

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
7.9
Beach & pool
4th-best month of the year

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

What to pack for Janakpur in December

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

In December, Janakpur sees daytime highs around 25°C and nights near 12°C. Worth packing: light clothes.

light clothes

UV index in Janakpur 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 Janakpur 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 highVery highModerateJul 19UV 11Nov 22UV 4
UV index (midday)Level
Jan4Moderate
Feb4Moderate
Mar8Very high
Apr7Very high
May8Very high
Jun7High
Jul11Extreme
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec4Moderate

Air quality in Janakpur 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 Janakpur 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).

0306090120150180JanFebMarAprMayJunJulAugSepOctNovDecVery unhealthyUnhealthyPoorUnhealthyJan 12167 µg/m³Jul 2036 µg/m³
PM2.5 (µg/m³)Level
Jan169Very unhealthy
Feb138Unhealthy
Mar107Unhealthy
Apr87Unhealthy
May70Unhealthy
Jun57Unhealthy
Jul35Moderate
Aug43Poor
Sep55Unhealthy
Oct87Unhealthy
Nov125Unhealthy
Dec160Very unhealthy
Location & terrain

Where is Janakpur?

Janakpur sits at 26.7°N, 85.9°E, 83 m above sea level, in Nepal. The nearest listed city is Jaleshwar, 15 km away.

LahānGaurTriyugaRājbirājPanauti

Topography around Janakpur

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

Within 3 km, the terrain around Janakpur has only modest variations in elevation — a maximum elevation change of 17 m around an average of 75 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 70 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,457 m.

The land around Janakpur is covered by cropland (49%) and artificial surfaces (32%) within 3 km, cropland (74%) within 16 km, and cropland (55%) and trees (39%) within 80 km.

3 km
17 m
16 km
70 m
80 km
2,457 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Jaleshwar 15 km · Siraha 29 km · Malaṅgawā 39 km · Lahān 55 km · Gaur 65 km · Triyuga 77 km · Rājbirāj 84 km · Panauti 103 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 Janakpur (26.7288°, 85.9263°, elevation 83 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).