Rājbirāj weather in October

In October, Rājbirāj sees average daytime highs of 31°C and overnight lows near 22°C, with 76 mm of rain across 6.9 wet days and about 11.4 hours of daylight. It is the 8th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 73% of the time in October, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of October to 11 hours by month's end. Set against the rest of the year, October is Rājbirāj's 6th-clearest and 11th-windiest month. For the whole year in context, see Rājbirāj's year-round climate.

Daytime high
31°
8th warmest
Overnight low
22°
6th coldest
Rainfall
76 mm
6.9 wet days
Daylight
11 h 24 min
6:02 AM – 5:24 PM
Cloud cover
29%
6th clearest
Wind
6 km/h
11th windiest
Solar energy
4.41 kWh/m²
Travel score
5.1
out of 10

Rājbirāj is municipality in Saptari District, Nepal.

Density
1,255/km²
people per km²
Founded
1950

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical October day in Rājbirāj reaches about 31°C in the afternoon and slips back to 22°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°C. Set against its neighbours, October runs on par with September and about 2°C warmer than November.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13224
23224
33224
43224
53224
63224
73224
83224
93223
103223
113223
123123
133123
143123
153122
163122
173122
183122
193122
203121
213121
223121
233121
243121
253120
263120
273120
283120
293120
303119
313119

How October really feels in Rājbirāj

Once humidity and wind are folded in, October averages 29 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
29
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Rājbirāj weather by month

How October compares with the rest of the year at a glance. October is the 8th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 11°121.610.58.9
Feb27° / 14°141.911.18.2
Mar33° / 19°162.711.84.8
Apr36° / 23°406.812.62.4
May35° / 25°12113.913.32.3
Jun33° / 26°29523.313.62.3
Jul32° / 26°42729.113.52.2
Aug32° / 26°34529.112.92.2
Sep32° / 26°30823.812.22.8
Oct31° / 22°766.911.45.1
Nov29° / 17°30.510.77.5
Dec25° / 13°40.510.49.1

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 73% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 10% of October, with mostly cloudy or overcast conditions the remaining 18%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16238
26535
36733
46931
57129
67327
77525
87624
97822
108020
118119
128218
138317
148416
158515
168614
178614
188713
198713
208812
218812
228812
238812
248911
259010
269010
279010
28919
29919
30919
31919

Chance of precipitation in October

Any precipitation

Rājbirāj gets around 76 mm of rain over 6.9 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 24% and peaks near 56% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
156
253
350
448
545
642
740
837
935
1032
1130
1228
1326
1424
1522
1620
1718
1816
1915
2014
2112
2211
2310
249
258
267
276
286
295
304
314

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the oppressive band about 44% of days. Sticky, muggy-or-worse air turns up on roughly 90% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10013168
20013465
30023761
40024058
50024355
60034750
70045046
80045442
90065638
100175834
110196030
1201116226
1302136322
1402166319
1503196216
1604226113
1705255911
180728569
190831547
2001034506
2101137474
2201340433
2301543393
2411745352
2511947311
2622149281
2722349241
2832551210
2942850180
3053049160
3173248130

Wind in October

Winds average 6 km/h in October.

Across October, daily wind ranges from about 5 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 48 min at the start of October to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over October. Sunrise moves from 5:54 AM to 6:12 AM, and sunset from 5:40 PM to 5:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:545:40
211.75:555:38
311.75:555:37
411.75:565:36
511.65:565:35
611.65:575:34
711.65:575:33
811.65:585:32
911.55:585:31
1011.55:595:30
1111.55:595:29
1211.56:005:28
1311.46:015:27
1411.46:015:26
1511.46:025:25
1611.46:025:24
1711.36:035:23
1811.36:035:22
1911.36:045:21
2011.36:055:20
2111.26:055:19
2211.26:065:18
2311.26:065:18
2411.26:075:17
2511.16:085:16
2611.16:085:15
2711.16:095:14
2811.16:105:14
2911.06:105:13
3011.06:115:12
3111.06:125:12

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.41 kWh/m².

For context, solar energy here swings from a low near 3.71 kWh/m² to a high of 6.31 kWh/m² in April across the year — October's 4.41 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.2Bright
44.2Bright
54.3Bright
64.3Bright
74.3Bright
84.3Bright
94.3Bright
104.4Bright
114.4Bright
124.4Bright
134.4Bright
144.4Bright
154.4Bright
164.4Bright
174.4Bright
184.4Bright
194.4Bright
204.4Bright
214.4Bright
224.4Bright
234.4Bright
244.4Bright
254.4Bright
264.4Bright
274.4Bright
284.4Bright
294.4Bright
304.4Bright
314.4Bright
Planning a trip in October

Hazard calendar for Rājbirāj

In seasonPeak

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

Rājbirāj'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 October a good time to visit Rājbirāj?

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

5.1
Sightseeing
5th-best month of the year
7.5
Beach & pool
5th-best month of the year

October is a reasonable time to visit Rājbirāj for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Rājbirāj in October

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

In October, Rājbirāj sees daytime highs around 31°C and nights near 22°C. Pack light clothes. About 7 days see rain.

light clothes

UV index in Rājbirāj in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Rājbirāj peaks around July 19 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 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 highModerateJul 19UV 11Jan 20UV 4
UV index (midday)Level
Jan4Moderate
Feb4Moderate
Mar8Very high
Apr7High
May8Very high
Jun7High
Jul11Extreme
Aug9Very high
Sep10Very high
Oct6High
Nov4Moderate
Dec4Moderate

Air quality in Rājbirāj in October

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Rājbirāj 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 Rājbirāj?

Rājbirāj sits at 26.5°N, 86.7°E, 89 m above sea level, in Nepal. The nearest listed city is Triyuga, 28 km away.

BiratnagarĪṭahari̇̄SirahaDharānDhankutā

Topography around Rājbirāj

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

Within 3 km, the terrain around Rājbirāj has only modest variations in elevation — a maximum elevation change of 27 m around an average of 83 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 378 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,952 m.

The land around Rājbirāj is covered by cropland (69%) within 3 km, cropland (67%) and trees (20%) within 16 km, and cropland (56%) and trees (38%) within 80 km.

3 km
27 m
16 km
378 m
80 km
2,952 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Triyuga 28 km · Lahān 33 km · Inaruwa 40 km · Biratnagar 53 km · Īṭahari̇̄ 54 km · Siraha 55 km · Dharān 61 km · Dhankutā 76 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 Rājbirāj (26.5397°, 86.748°, 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).