Biratnagar weather in January

In January, Biratnagar sees average daytime highs of 24°C and overnight lows near 11°C, with 10 mm of rain across 1.4 wet days and about 10.5 hours of daylight. It is the 12th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 72% of the time in January, and the air most often feels dry.

Daylight stretches from about 10 h 24 min at the start of January to 10 h 48 min by month's end. Set against the rest of the year, January is Biratnagar's 5th-clearest and 9th-windiest month. For the whole year in context, see Biratnagar's year-round climate.

Daytime high
24°
12th warmest
Overnight low
11°
1st coldest
Rainfall
10 mm
1.4 wet days
Daylight
10 h 30 min
6:50 AM – 5:20 PM
Cloud cover
27%
5th clearest
Wind
6 km/h
9th windiest
Solar energy
3.91 kWh/m²
Travel score
9.0
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 January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 24°C through the month.

A typical January day in Biratnagar reaches about 24°C in the afternoon and slips back to 11°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 26°C. Set against its neighbours, January runs about 2°C cooler than December and about 3°C cooler than February.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12411
22411
32411
42411
52311
62311
72311
82311
92311
102311
112311
122311
132311
142311
152311
162311
172311
182311
192311
202311
212311
222312
232412
242412
252412
262412
272412
282412
292412
302412
312512

How January really feels in Biratnagar

Once humidity and wind are folded in, January 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

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

Biratnagar weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 10th-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 January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 72% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 13% of January, with mostly cloudy or overcast conditions the remaining 15%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18911
28911
38911
48812
58812
68812
78812
88812
98713
108713
118713
128713
138713
148614
158614
168515
178515
188515
198416
208317
218317
228317
238317
248317
258317
268317
278317
288317
298317
308317
318416

Chance of precipitation in January

Any precipitation

Biratnagar gets around 10 mm of rain over 1.4 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 5% and peaks near 5% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
15
25
35
45
55
65
75
85
95
105
115
125
135
145
155
165
174
184
194
204
214
224
234
244
254
264
274
284
294
304
314

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the dry band about 81% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
185150
285150
386140
486140
586140
686140
786140
886140
986140
1085150
1185150
1285150
1385150
1484160
1584160
1683170
1783170
1882180
1981181
2080191
2179201
2278211
2377221
2477221
2576231
2675241
2774251
2873261
2972271
3071281
3170291

Wind in January

Winds average 6 km/h in January.

Across January, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 10 h 24 min at the start of January to 10 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over January. Sunrise moves from 6:48 AM to 6:47 AM, and sunset from 5:10 PM to 5:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.46:485:10
210.46:485:11
310.46:495:11
410.46:495:12
510.46:495:13
610.46:495:13
710.46:495:14
810.46:505:15
910.46:505:15
1010.46:505:16
1110.46:505:17
1210.56:505:18
1310.56:505:18
1410.56:505:19
1510.56:505:20
1610.56:505:20
1710.56:505:21
1810.56:505:22
1910.56:505:23
2010.66:505:23
2110.66:495:24
2210.66:495:25
2310.66:495:26
2410.66:495:26
2510.66:495:27
2610.76:485:28
2710.76:485:29
2810.76:485:30
2910.76:475:30
3010.76:475:31
3110.86:475:32

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 3.91 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 — January's 3.91 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
13.8Moderate
23.8Moderate
33.8Moderate
43.8Moderate
53.8Moderate
63.8Moderate
73.8Moderate
83.9Moderate
93.9Moderate
103.9Moderate
113.9Moderate
123.9Moderate
133.9Moderate
143.9Moderate
153.9Moderate
163.9Moderate
173.9Moderate
183.9Moderate
194.0Moderate
204.0Moderate
214.0Moderate
224.0Moderate
234.0Bright
244.0Bright
254.0Bright
264.1Bright
274.1Bright
284.1Bright
294.1Bright
304.2Bright
314.2Bright
Planning a trip in January

Hazard calendar for Biratnagar

In seasonPeak

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

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

9.0
Sightseeing
2nd-best month of the year
7.3
Beach & pool
6th-best month of the year

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

What to pack for Biratnagar in January

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

In January, Biratnagar sees daytime highs around 24°C and nights near 11°C. Worth packing: light clothes.

light clothes

UV index in Biratnagar in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January 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 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 January

GoodModeratePoorUnhealthyVery unhealthy

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