Vientiane weather in June

In June, Vientiane sees average daytime highs of 32°C and overnight lows near 26°C, with 316 mm of rain across 25.1 wet days and about 13.1 hours of daylight. It is the 4th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 3% of the time in June, and the air most often feels miserable.

Daylight stretches from about 13 hours at the start of June to 13 h 06 min by month's end. Set against the rest of the year, June is Vientiane's 11th-clearest and 9th-windiest month. For the whole year in context, see Vientiane's year-round climate.

Daytime high
32°
4th warmest
Overnight low
26°
12th coldest
Rainfall
316 mm
25.1 wet days
Daylight
13 h 06 min
5:38 AM – 6:42 PM
Cloud cover
91%
11th clearest
Wind
5 km/h
9th windiest
Solar energy
4.68 kWh/m²
Travel score
2.2
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 June

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical June day in Vientiane reaches about 32°C in the afternoon and slips back to 26°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 35°C. Set against its neighbours, June runs about 1°C cooler than May and on par with July.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13325
23325
33325
43326
53326
63326
73326
83326
93326
103326
113326
123326
133326
143326
153326
163326
173326
183326
193226
203226
213226
223226
233226
243226
253226
263226
273226
283226
293226
303226

How June really feels in Vientiane

Once humidity and wind are folded in, June averages 30 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
30
30 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

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

Vientiane weather by month

How June compares with the rest of the year at a glance. June is the 4th-warmest and 3rd-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 June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 4% of June, with mostly cloudy or overcast conditions the remaining 93%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1892
2892
3793
4793
5793
6694
7694
8694
9694
10694
11595
12595
13595
14595
15595
16694
17694
18694
19694
20694
21694
22694
23793
24892
25892
26892
27892
28991
29991
30991

Chance of precipitation in June

Any precipitation

Vientiane gets around 316 mm of rain over 25.1 wet days in June. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 84% and peaks near 88% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
188
288
387
487
587
686
786
885
985
1084
1184
1284
1383
1483
1582
1682
1782
1882
1982
2082
2182
2282
2382
2482
2582
2682
2782
2882
2982
3082

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the miserable band about 94% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
1595
2595
3496
4496
5397
6397
7397
8397
9397
10397
11496
12496
13595
14595
15694
16694
17793
18793
19793
20793
21892
22892
23892
24892
25892
26892
27892
28793
29793
30793

Wind in June

Winds average 5 km/h in June.

Across June, 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.

0246810151015202530
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

Sunrise & sunset in June

DaylightNight

Daylight runs from about 13 hours at the start of June to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over June. Sunrise moves from 5:37 AM to 5:41 AM, and sunset from 6:37 PM to 6:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:376:37
213.05:376:37
313.05:376:38
413.05:376:38
513.05:376:38
613.05:376:39
713.05:376:39
813.05:376:39
913.05:376:40
1013.05:376:40
1113.15:376:40
1213.15:376:41
1313.15:376:41
1413.15:376:41
1513.15:386:42
1613.15:386:42
1713.15:386:42
1813.15:386:42
1913.15:386:43
2013.15:386:43
2113.15:396:43
2213.15:396:43
2313.15:396:44
2413.15:396:44
2513.15:396:44
2613.15:406:44
2713.15:406:44
2813.15:406:45
2913.15:406:45
3013.15:416:45

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 4.68 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 — June's 4.68 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.6Bright
224.6Bright
234.6Bright
244.6Bright
254.6Bright
264.6Bright
274.6Bright
284.6Bright
294.6Bright
304.6Bright
Planning a trip in June

Hazard calendar for Vientiane

In seasonPeak

In June, Vientiane sits inside its pacific typhoon and monsoon 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 June a good time to visit Vientiane?

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

2.2
Sightseeing
11th-best month of the year
3.8
Beach & pool
11th-best month of the year

June is a weaker month for outdoor sightseeing in Vientiane.

What to pack for Vientiane in June

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

In June, Vientiane sees daytime highs around 32°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

UV index in Vientiane in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June peaks around 13 (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 June

GoodModeratePoorUnhealthyVery unhealthy

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