AI-generatedVientiane at a glance
- Best time
- Nov – Jan
- Warmest month
- Apr · 34°
- Sunshine a year
- 2,250 h
- Rain a year
- 1,846 mm
- Climate
- Tropical
- Time zone
- UTC+7
- Elevation
- 174 m
Climate in Vientiane
Vientiane has a tropical climate: it is warm all year round, and the seasons differ mainly in how much rain falls. April is the warmest month with average highs of 34 °C, while December is the coolest at 27 °C. With around 2,250 hours of sunshine a year, Vientiane is sunny; February is the sunniest month with 7.6 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Good
Best time to visit: November – January
A typical day in October
- Morning, 08:00: about 26°
- Midday, 13:00: about 29°
- Afternoon, 16:00: about 29°
- Evening, 20:00: about 26°
- Night, 23:00: about 25°
06:0217:48
Warm enough for a T-shirt in the evening.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 05:49–06:32 · evening 17:19–18:01
- Blue hour
- Morning 05:40–05:49 · evening 18:01–18:10
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
What is the weather like in Vientiane in October?
In October, Vientiane is hot: daytime highs average 30 °C, and even at night it stays warm at around 23 °C. The sun shines for around 7 hours a day. Rain is frequent, with about 12 rainy days and 96 mm in total. On about 14 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is a good month for a holiday in Vientiane.
More details for October
- Daylight
- 11 h 46 min06:02 – 17:48
- UV index
- 10 · very highclear sky, noon (estimate)All months
- Muggy days
- 30 daysdew point 18 °C or moreAll months
- Wind
- 8 km/haverage daily peakAll months
- Cloud cover
- 56 %on averageAll months
- Hot days
- 14 days30 °C or moreAll months
- Time zone
- UTC+7Asia/Vientiane
How the score comes together
- Temperatureweight 50 %69 %
- Sunshineweight 20 %63 %
- Few rainy daysweight 30 %46 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Sunshine hours in Vientiane
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 6.8 of 11.8 hours of daylight in Vientiane, 58 % of the day.
Sunshine hours: measured at the weather station 3 km away, averages 1991–2020 (WMO climate normals). Daylight is the time from sunrise to sunset on the 15th of the month.
UV index in Vientiane
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 10 · very highStay in the shade around midday; SPF 50, clothing, hat and sunglasses.
The sun is strongest in May (UV 13).
Minutes until sunburn in October
- Very fair skin
- about 15 min
- Fair skin
- about 15 min
- Light brown skin
- about 25 min
- Olive skin
- about 30 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Rain in Vientiane: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Vientiane has about 12 rainy days with 96 mm of rain in total.
Wind and clouds in Vientiane
How breezy and how cloudy Vientiane is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Vientiane typically peaks at 8 km/h during the day: Beaufort 2, light air.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 56 % of the sky over Vientiane: variable cloud, with about 6.8 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat and humidity in Vientiane
How often the day gets hot in Vientiane (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Vientiane has about 14 hot days, with an average daytime high of 30 °C: often muggy. The air feels warmer than the thermometer says: light, airy clothes and slow days help.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Vientiane
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Pleasant 15–20°
- Warm 20–24°
- Hot 24° and more
- muggy month (10+ muggy days)
WarmOctober: nights around 23°. Tropical nights: a fan or air conditioning helps. Muggy on about 30 days (dew point 18 °C or more).
The coolest nights are in January (17°), the warmest in May (25°). Tropical nights of 20 °C and more are the rule from March to November; then air conditioning or a fan helps you sleep. Nights are pleasant for sleeping (15 to 20 °C) from December to February. It is muggy (dew point 18 °C or more) on about 262 days a year, mostly from March to November.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|
| JanuaryJan | 91 | 27° | 17° | 7.1 h | 2 | 10 |
| FebruaryFeb | 78 | 30° | 19° | 7.6 h | 2 | 15 |
| MarchMar | 54 | 33° | 22° | 6.7 h | 6 | 29 |
| AprilApr | 37 | 34° | 25° | 7.1 h | 10 | 68 |
| MayMay | 29 | 32° | 25° | 6.1 h | 22 | 232 |
| JuneJun | 33 | 31° | 25° | 4.7 h | 25 | 297 |
| JulyJul | 34 | 30° | 25° | 3.7 h | 27 | 373 |
| AugustAug | 36 | 30° | 24° | 4.0 h | 28 | 390 |
| SeptemberSep | 41 | 30° | 24° | 5.3 h | 24 | 312 |
| OctoberOct | 61 | 30° | 23° | 6.8 h | 12 | 96 |
| NovemberNov | 83 | 29° | 21° | 7.5 h | 3 | 21 |
| DecemberDec | 94 | 27° | 18° | 7.3 h | 1 | 5 |
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
17.97° N, 102.60° E · 174 m · Asia/Vientiane
Best time to visit Vientiane
The best time to visit Vientiane is from November to January. For sightseeing, day trips and hiking, conditions are most comfortable from December to January. In April it can get very hot, with highs of up to 34 °C. Rain is most frequent from May to September; the wettest month is August with 390 mm.
Vientiane through the seasons
How the weather changes over the seasons, with averages for each.
Vientiane in the dry season
Oct – Apr
Good
- 27–34 °C by day
- 7 h of sun a day
- 36 rainy days in all
Vientiane in the rainy season
May – Sep
Poor
- 30–32 °C by day
- 5 h of sun a day
- 126 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Vientiane for you.
Your best months: December – January
Based on the climate averages; tap a month to see its details.
Compare two months in Vientiane
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
December has the better holiday weather in Vientiane: score 94 against 61. In December, days are 3 °C cooler than in October. December has 11 fewer rainy days. The sun shines an hour longer a day in December.
| Month | October | December |
|---|---|---|
| Weather score | 61 | 94better |
| Day high | 30° | 27° |
| Night low | 23° | 18° |
| Sunshine | 6.8 h | 7.3 hbetter |
| Rainy days | 12 | 1better |
| Rainfall | 96 mm | 5 mmbetter |
| Muggy days | 30 | 5better |
Based on the climate averages 1996–2025.
Which month for what?
Beach & swimming
No sea nearby
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Dec – Jan
15–28 °C and not too much rain
Peak heat
Apr
Highs of 33 °C or more
Rainy months
May – Sep
12 or more rainy days
Vientiane month by month
The typical weather for every month at a glance.
91January27° · 7 h
In January, Vientiane is hot: daytime highs average 27 °C, and nights cool down to about 17 °C. The sun shines for around 7 hours a day. It hardly ever rains. All in all, January is an excellent month for a holiday in Vientiane.
Vientiane in January78February30° · 8 h
In February, Vientiane is hot: daytime highs average 30 °C, and nights cool down to about 19 °C. The sun shines for around 8 hours a day. Rain is rare: about 2 days bring 15 mm in total. On about 15 days the thermometer climbs to 30 °C or more. All in all, February is a good month for a holiday in Vientiane.
Vientiane in February54March33° · 7 h
In March, Vientiane is hot: daytime highs average 33 °C, and even at night it stays warm at around 22 °C. The sun shines for around 7 hours a day. Rain falls on about 6 days, adding up to 29 mm. On about 25 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, March is a so-so month for a holiday in Vientiane.
Vientiane in March37April34° · 7 h
In April, Vientiane is very hot: daytime highs average 34 °C, and even at night it stays warm at around 25 °C. The sun shines for around 7 hours a day. Rain is frequent, with about 10 rainy days and 68 mm in total. On about 27 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, April is not an ideal month for a holiday in Vientiane.
Vientiane in April29May32° · 6 h
In May, Vientiane is hot: daytime highs average 32 °C, and even at night it stays warm at around 25 °C. Expect around 6 hours of sunshine a day. It is the rainy season: rain falls on about 22 days, totalling 232 mm. On about 24 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, May is not an ideal month for a holiday in Vientiane.
Vientiane in May33June31° · 5 h
In June, Vientiane is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. Expect around 5 hours of sunshine a day. It is the rainy season: rain falls on about 25 days, totalling 297 mm. On about 20 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, June is not an ideal month for a holiday in Vientiane.
Vientiane in June34July30° · 4 h
In July, Vientiane is hot: daytime highs average 30 °C, and even at night it stays warm at around 25 °C. The sun is scarce, with only about 4 hours a day. It is the rainy season: rain falls on about 27 days, totalling 373 mm. On about 17 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, July is not an ideal month for a holiday in Vientiane.
Vientiane in July36August30° · 4 h
In August, Vientiane is hot: daytime highs average 30 °C, and even at night it stays warm at around 24 °C. Expect around 4 hours of sunshine a day. It is the rainy season: rain falls on about 28 days, totalling 390 mm. On about 15 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is not an ideal month for a holiday in Vientiane.
Vientiane in August41September30° · 5 h
In September, Vientiane is hot: daytime highs average 30 °C, and even at night it stays warm at around 24 °C. Expect around 5 hours of sunshine a day. It is the rainy season: rain falls on about 24 days, totalling 312 mm. On about 14 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is a so-so month for a holiday in Vientiane.
Vientiane in September61October30° · 7 h
In October, Vientiane is hot: daytime highs average 30 °C, and even at night it stays warm at around 23 °C. The sun shines for around 7 hours a day. Rain is frequent, with about 12 rainy days and 96 mm in total. On about 14 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is a good month for a holiday in Vientiane.
Vientiane in October83November29° · 8 h
In November, Vientiane is hot: daytime highs average 29 °C, and even at night it stays warm at around 21 °C. The sun shines for around 8 hours a day. Rain is rare: about 3 days bring 21 mm in total. On about 9 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, November is an excellent month for a holiday in Vientiane.
Vientiane in November94December27° · 7 h
In December, Vientiane is hot: daytime highs average 27 °C, and nights cool down to about 18 °C. The sun shines for around 7 hours a day. It hardly ever rains. All in all, December is an excellent month for a holiday in Vientiane.
Vientiane in DecemberVientiane compared
Put Vientiane side by side with another destination.
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Vientiane vs. Luang Prabang
In October the holiday weather in Vientiane and Luang Prabang is about equally good (score 61 vs. 65). During the day Luang Prabang is 1 °C cooler than Vientiane. Luang Prabang gets one hour less sunshine a day.
| in October | Vientiane | Luang Prabang |
|---|---|---|
| Holiday score | 61 | 65 |
| Daytime high | 30° | 29° |
| Sunshine | 7 h | 6 h |
| Rainy days | 12 | 10 |
| Best time | Nov – Jan | Nov – Feb |
Through the year
Laos in October: the best places
In October, Vientiane ranks 2 of 3 destinations in this country.
- Luang Prabang29°65
- 2VientianeThis page30°61
- 3Golden Triangle29°56
Planning a trip to Vientiane
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Vientiane in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Vientiane has its best school-holiday weather during the Christmas holidays (score 93) and its weakest during May half-term (score 30).
- 42
Easter holidays
Mar – Apr
Fair
- 34 °C by day
- 7.0 h of sun a day
- 9 rainy days a month
Keep in mind: Peak heat
- 30
May half-term
May – Jun
Poor
- 32 °C by day
- 5.8 h of sun a day
- 23 rainy days a month
Keep in mind: Frequent rain
- 35
Summer holidays
Jul – Aug
Poor
- 30 °C by day
- 3.9 h of sun a day
- 27 rainy days a month
Keep in mind: Frequent rain
- 61
October half-term
Oct
Good
- 30 °C by day
- 6.8 h of sun a day
- 12 rainy days a month
- 93
Christmas holidays
Dec – Jan
ExcellentBest holidays
- 27 °C by day
- 7.2 h of sun a day
- 1 rainy day a month
Good for: Sightseeing & walks
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 11 h 45 min
- Distance
- 9,320 km
- Time zone
- UTC+7
- Jet lag
- About 6 days (6 h east)
Rule of thumb for flying east: for a few days before, go to bed and get up a little earlier, and get plenty of morning light at your destination.
Most routes need a change of planes, which adds time.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Frequently asked questions about Vientiane
When is the best time to visit Vientiane?
The best time to visit Vientiane is from November to January. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
What is the warmest month in Vientiane?
April is the warmest month, with average highs of 34 °C and nights around 25 °C. December is the coolest month at 27 °C.
When does it rain most in Vientiane?
Rain is most frequent from May to September; the wettest month is August with 390 mm. The driest month is December with 5 mm.
How many hours of sunshine does Vientiane get?
Vientiane gets around 2,250 hours of sunshine a year. The sunniest month is February with 7.6 hours a day; in July there are 3.7 hours a day.
What time zone is Vientiane in?
Vientiane uses the time zone Asia/Vientiane, at UTC+7 all year.
How long is the flight from London to Vientiane?
A nonstop flight from London to Vientiane takes about 11 h 45 min, for a straight-line distance of about 9,320 km. Most routes need a change of planes, which adds time.
Which school holidays are best for Vientiane?
Vientiane has its best school-holiday weather during the Christmas holidays (score 93) and its weakest during May half-term (score 30). Holiday ratings (0–100): Easter holidays 42, May half-term 30, Summer holidays 35, October half-term 61, Christmas holidays 93.
Near Vientiane
Other destinations close by.
Places with a climate like Vientiane
Destinations whose weather through the year is closest to Vientiane's – good alternatives.