Vientiane weather in October

In October, Vientiane sees average daytime highs of 31°C and overnight lows near 24°C, with 101 mm of rain across 11.9 wet days and about 11.6 hours of daylight. It is the 9th-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 38% 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 h 24 min by month's end. Set against the rest of the year, October is Vientiane's 7th-clearest and 11th-windiest month. For the whole year in context, see Vientiane's year-round climate.

Daytime high
31°
9th warmest
Overnight low
24°
6th coldest
Rainfall
101 mm
11.9 wet days
Daylight
11 h 36 min
6:07 AM – 5:42 PM
Cloud cover
54%
7th clearest
Wind
5 km/h
11th windiest
Solar energy
4.75 kWh/m²
Travel score
4.2
out of 10

Vientiane is capital of Laos.

Air quality
High
PM2.5 25.8 µg/m³ · 2019
Density
215/km²
people per km²
Founded
1560

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 Vientiane reaches about 31°C in the afternoon and slips back to 24°C overnight — a 8°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 1°C warmer than November.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13225
23225
33225
43225
53225
63224
73224
83224
93224
103224
113224
123224
133124
143124
153124
163124
173124
183124
193124
203123
213123
223123
233123
243123
253123
263123
273123
283123
293122
303122
313122

How October really feels in Vientiane

Once humidity and wind are folded in, October averages 31 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
31
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.

Vientiane weather by month

How October compares with the rest of the year at a glance. October is the 9th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 17°111.7116.9
Feb31° / 19°152.211.45.4
Mar34° / 22°366.211.93.5
Apr35° / 25°7511.912.42.4
May33° / 25°26223.412.82.2
Jun32° / 26°31625.113.12.2
Jul32° / 26°37226.5132.4
Aug31° / 25°40127.512.62.4
Sep32° / 25°30024.712.12.7
Oct31° / 24°10111.911.64.2
Nov30° / 21°22311.25.8
Dec29° / 18°81.210.97.2

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 20% of October, with mostly cloudy or overcast conditions the remaining 42%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24654
34753
44852
55050
65149
75248
85347
95446
105545
115545
125545
135644
145743
155842
165941
175941
186040
196139
206139
216238
226337
236337
246436
256535
266535
276634
286733
296733
306832
316832

Chance of precipitation in October

Any precipitation

Vientiane gets around 101 mm of rain over 11.9 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 38% and peaks near 61% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
161
260
358
457
555
653
752
850
949
1047
1146
1244
1343
1441
1539
1638
1736
1835
1933
2032
2130
2229
2327
2426
2525
2623
2722
2821
2920
3020
3119

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 42% of days. Sticky, muggy-or-worse air turns up on roughly 96% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10032968
20033166
30043264
40143461
50153559
60153658
70163756
80173854
90183952
100184150
110194248
1201104346
1301114444
1401124442
1511134540
1611144539
1711164637
1811174735
1911184732
2012194830
2112204928
2223214925
2324224923
2425234921
2536244819
2637254718
2738264616
28410274515
29411284413
30412284312
31413294211

Wind in October

Winds average 5 km/h in October.

Across October, daily wind ranges from about 4 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
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
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 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over October. Sunrise moves from 6:03 AM to 6:13 AM, and sunset from 5:54 PM to 5:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:035:54
211.86:045:53
311.86:045:52
411.86:045:51
511.86:045:50
611.86:045:50
711.76:055:49
811.76:055:48
911.76:055:47
1011.76:055:47
1111.76:065:46
1211.76:065:45
1311.66:065:44
1411.66:065:44
1511.66:075:43
1611.66:075:42
1711.66:075:42
1811.66:085:41
1911.56:085:40
2011.56:085:40
2111.56:095:39
2211.56:095:38
2311.56:095:38
2411.56:105:37
2511.46:105:37
2611.46:115:36
2711.46:115:36
2811.46:115:35
2911.46:125:35
3011.46:125:34
3111.46:135:34

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.75 kWh/m².

For context, solar energy here swings from a low near 4.17 kWh/m² to a high of 6.03 kWh/m² in April across the year — October's 4.75 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
314.7Bright
Planning a trip in October

Hazard calendar for Vientiane

In seasonPeak

In October, Vientiane sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Vientiane sits in the Pacific typhoon belt; the season peaks July–October.

Vientiane's monsoon runs May–September, when most of the year's rain falls.

Pacific typhoon
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is October a good time to visit Vientiane?

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

4.2
Sightseeing
5th-best month of the year
6.4
Beach & pool
6th-best month of the year

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

What to pack for Vientiane in October

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

In October, Vientiane sees daytime highs around 31°C and nights near 24°C. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

UV index in Vientiane in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Vientiane peaks around August 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 11UV 13Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar12Extreme
Apr10Extreme
May11Extreme
Jun13Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec7Very high

Air quality in Vientiane 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 Vientiane is worst in March — around 56 µg/m³ PM2.5 (unhealthy), about 3.4× the cleanest month (July, 16 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Vientiane's WHO annual average of 25.8 µg/m³.

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorPoorModerateMar 2355 µg/m³Jul 2116 µg/m³
PM2.5 (µg/m³)Level
Jan23Moderate
Feb32Moderate
Mar56Unhealthy
Apr53Poor
May23Moderate
Jun17Moderate
Jul16Moderate
Aug17Moderate
Sep17Moderate
Oct19Moderate
Nov18Moderate
Dec19Moderate
Location & terrain

Where is Vientiane?

Vientiane sits at 18.0°N, 102.6°E, 174 m above sea level, in Laos. The nearest listed city is Tha Bo, 13 km away.

Kut ChapPhon CharoenUdon ThaniBan DungNa Klang

Topography around Vientiane

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

Within 3 km, the terrain around Vientiane has only modest variations in elevation — a maximum elevation change of 33 m around an average of 171 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 74 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,487 m.

The land around Vientiane is covered by artificial surfaces (53%) within 3 km, cropland (36%) and trees (34%) within 16 km, and trees (57%) and cropland (34%) within 80 km.

3 km
33 m
16 km
74 m
80 km
1,487 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Tha Bo 13 km · Nong Khai 18 km · Nam Som 49 km · Kut Chap 60 km · Phon Charoen 60 km · Udon Thani 64 km · Ban Dung 76 km · Na Klang 85 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 Vientiane (17.9667°, 102.6°, elevation 174 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).