Vieng Xai weather in October

In October, Vieng Xai sees average daytime highs of 25°C and overnight lows near 18°C, with 91 mm of rain across 14.2 wet days and about 11.5 hours of daylight. It is the 8th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 26°C in the first days to 24°C by the end. The sky is clear or mostly clear about 18% of the time in October, and the air most often feels muggy.

Daylight stretches from about 11 h 48 min at the start of October to 11 h 18 min by month's end. Set against the rest of the year, October is Vieng Xai's 7th-clearest and 10th-windiest month. For the whole year in context, see Vieng Xai's year-round climate.

Daytime high
25°
8th warmest
Overnight low
18°
6th coldest
Rainfall
91 mm
14.2 wet days
Daylight
11 h 30 min
6:02 AM – 5:34 PM
Cloud cover
67%
7th clearest
Wind
5 km/h
10th windiest
Solar energy
3.8 kWh/m²
Travel score
6.1
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 26°C in the first days to 24°C by the end.

A typical October day in Vieng Xai reaches about 25°C in the afternoon and slips back to 18°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 28°C. Set against its neighbours, October runs about 2°C cooler than September and about 2°C warmer than November.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12619
22619
32619
42619
52619
62619
72619
82619
92618
102618
112618
122518
132518
142518
152518
162518
172518
182518
192518
202517
212517
222517
232417
242417
252417
262417
272417
282416
292416
302416
312416

How October really feels in Vieng Xai

Once humidity and wind are folded in, October 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

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

Vieng Xai weather by month

How October compares with the rest of the year at a glance. October is the 8th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan20° / 11°224.410.97.0
Feb22° / 12°143.811.37.6
Mar25° / 15°6010.611.96.8
Apr28° / 18°10917.712.55.1
May29° / 20°20523.2133.7
Jun29° / 22°20124.213.23.2
Jul29° / 22°26426.213.13.3
Aug28° / 21°30226.812.73.6
Sep27° / 20°19320.112.14.7
Oct25° / 18°9114.211.56.1
Nov23° / 15°326.3117.3
Dec20° / 11°194.210.87.1

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 22% of October, with mostly cloudy or overcast conditions the remaining 60%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23763
33763
43763
53862
63664
73763
83763
93763
103664
113664
123664
133763
143862
153862
163961
173961
184060
194159
204159
214258
224357
234258
244357
254357
264456
274456
284555
294555
304654
314654

Chance of precipitation in October

Any precipitation

Vieng Xai gets around 91 mm of rain over 14.2 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 45% and peaks near 55% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
155
255
354
454
554
653
753
853
952
1052
1151
1250
1349
1448
1547
1646
1745
1844
1943
2042
2141
2240
2339
2438
2537
2636
2735
2834
2934
3033
3132

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the muggy band about 48% of days. Sticky, muggy-or-worse air turns up on roughly 51% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
118216010
21822609
31822618
41823617
51923616
62924596
72924605
82925595
921026584
1021027574
1121028573
1221129553
1321130543
1431230523
1531232512
1631332502
1731333492
1831434472
1941434462
2041535452
2151536431
2251636421
2361636401
2481736381
2591736371
26101736351
27121836341
28141835321
29151935311
30171935290
31181934280

Wind in October

Winds average 5 km/h in October.

Across October, 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 October

DaylightNight

Daylight runs from about 11 h 48 min at the start of October to 11 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over October. Sunrise moves from 5:58 AM to 6:09 AM, and sunset from 5:47 PM to 5:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:585:47
211.85:585:46
311.85:585:45
411.85:585:44
511.75:595:43
611.75:595:42
711.75:595:41
811.76:005:40
911.76:005:39
1011.66:005:39
1111.66:015:38
1211.66:015:37
1311.66:015:36
1411.66:025:35
1511.56:025:35
1611.56:025:34
1711.56:035:33
1811.56:035:32
1911.56:045:32
2011.46:045:31
2111.46:045:30
2211.46:055:30
2311.46:055:29
2411.46:065:28
2511.46:065:28
2611.36:075:27
2711.36:075:26
2811.36:085:26
2911.36:085:25
3011.36:085:25
3111.36:095:24

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.8 kWh/m².

For context, solar energy here swings from a low near 3.16 kWh/m² to a high of 5.2 kWh/m² in April across the year — October's 3.8 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.1Bright
34.1Bright
44.1Bright
54.1Bright
64.0Bright
74.0Bright
84.0Moderate
94.0Moderate
103.9Moderate
113.9Moderate
123.9Moderate
133.8Moderate
143.8Moderate
153.8Moderate
163.8Moderate
173.8Moderate
183.7Moderate
193.7Moderate
203.7Moderate
213.7Moderate
223.7Moderate
233.7Moderate
243.7Moderate
253.7Moderate
263.7Moderate
273.7Moderate
283.7Moderate
293.7Moderate
303.7Moderate
313.7Moderate
Planning a trip in October

Hazard calendar for Vieng Xai

In seasonPeak

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

Vieng Xai's monsoon runs May–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 Vieng Xai?

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

6.1
Sightseeing
6th-best month of the year
5.5
Beach & pool
2nd-best month of the year

October is a reasonable time to visit Vieng Xai for sightseeing.

What to pack for Vieng Xai in October

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

In October, Vieng Xai sees daytime highs around 25°C and nights near 18°C. Pack rain gear. Worth having: light clothes. About 14 days see rain.

rain gearlight clothes

UV index in Vieng Xai in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Vieng Xai peaks around August 12 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highHighAug 12UV 14Dec 17UV 7
UV index (midday)Level
Jan8Very high
Feb9Very high
Mar10Very high
Apr9Very high
May10Extreme
Jun14Extreme
Jul13Extreme
Aug14Extreme
Sep10Very high
Oct9Very high
Nov8Very high
Dec7High

Air quality in Vieng Xai 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 Vieng Xai is worst in April — around 288 µg/m³ PM2.5 (very unhealthy), about 35.5× the cleanest month (August, 8 µg/m³).

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

0306090120150180210240270JanFebMarAprMayJunJulAugSepOctNovDecModerateUnhealthyVery unhealthyUnhealthyGoodModerateApr 15263 µg/m³Aug 128 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb28Moderate
Mar98Unhealthy
Apr288Very unhealthy
May64Unhealthy
Jun14Moderate
Jul9Good
Aug8Good
Sep11Good
Oct15Moderate
Nov15Moderate
Dec19Moderate
Location & terrain

Where is Vieng Xai?

Vieng Xai sits at 20.4°N, 104.2°E, 0 m above sea level, in Laos. The nearest listed city is Xam Nua, 19 km away.

Bản Na HỷSơn LaHòa BìnhÍt OngThị Trấn Thuận ChâuThị Trấn Lam SơnNghĩa Lộ

Topography around Vieng Xai

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

Within 3 km, the terrain around Vieng Xai has large variations in elevation — a maximum elevation change of 661 m around an average of 915 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,259 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,998 m.

The land around Vieng Xai is covered by trees (65%) and grassland (25%) within 3 km, trees (86%) within 16 km, and trees (82%) within 80 km.

3 km
661 m
16 km
1,259 m
80 km
1,998 m
treesgrasslandcroplandartificial surfaceswater
October weather nearby: Xam Nua 19 km · Bản Na Hỷ 99 km · Sơn La 107 km · Hòa Bình 125 km · Ít Ong 125 km · Thị Trấn Thuận Châu 127 km · Thị Trấn Lam Sơn 135 km · Nghĩa Lộ 136 km

Laos travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / C / E / F
230 V · 50 Hz
Prices
≈ 23% of US
price level, 2025
GDP per capita
$2,325
2025
Happiness
5.5 / 10
World Happiness, 2025
Safe drinking water
35%
of population, 2024
Road deaths
17.9
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Low
EF EPI 461
Religion
Buddhist 65%none 31%other/not stated 2%Christian 2%

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 Vieng Xai (20.4068°, 104.2238°, elevation 0 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).