Laos Vientiane Weather in October — Climate Guide
October in Vientiane is high
October is high for Vientiane.
October is the year's best value-for-quality window. Monsoon ends + dry season begins + air quality returns + Mekong starts clearing + pricing still at monsoon lows.
Rainfall drops from September's 320mm to October's 150mm (50% reduction). Rainy days from 19 to 11. Days cool from 31°C to 30°C with nights at 22°C. Patuxai rooftop views start returning to photogenic quality.
Travel score
Monsoon ends + Boun Ok Phansa lantern festival + value window
October Weather at a Glance
October averages 86°F / 30°C highs and 72°F / 22°C lows with 11 rainy days and 150mm of rain — late monsoon. Humidity 78%. UV 9. Sunshine 7 hours. Sea/swim 27°C swimming-friendly. Transitioning toward dry season by month-end.
October Travel Advice
Boun Ok Phansa (October full moon, varies year-by-year) — confirm dates 2-3 months ahead. Paper lantern release on Mekong at 19:00 from the Fa Ngum Road waterfront. Target October 16-31 for best weather + still-value pricing. Pricing climbs sharply November 1 — book by mid-October if traveling late-month.
Flying In from Overseas
Tourist arrivals still low — international flight pricing matches September lows. Direct via Bangkok $250-450. European autumn shoulder. Korean autumn break partial overlap.
October Pricing Trends
Last value month: boutique $40-90/night first half, $60-130 late month. Crowne Plaza $160-360. Settha Palace $130-280. Flights $250-450 via Bangkok. Book by Oct for value before Nov 1 sharp increase.
Vientiane October Weather Stats
Avg High
30°C
Avg Low
22°C
Rainy Days
11
150mm total
Sunshine
7h
Daily avg
Humidity
78%
comfortable
UV Index
9
Very high
Wind
7 km/h
Gusts 18
Sea Temp
27°C
swimming Mekong tributary
Crowds
Moderate
At attractions
October Sunrise & Sunset
Air Quality
PM2.5
22 μg/m³
PM10
38 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
33°C
Nighttime
22°C
Humidity and wind affect how the actual temperature feels.
Wind
7 km/h
Max gust 18 km/h
Activities Recommended for October
October Travel Pros & Cons
Pros
- Monsoon ends — air quality + Mekong clearing
- Boun Ok Phansa + Boat Racing Festival
- Year's best value-for-quality window
- Last month of low-season pricing
Cons
- First half still has rainy days
- Late October pricing climbs
- Boun That Luang preparations affect late month
October Events & Festivals
- Boun Ok Phansa + Boat Racing Festival (October full moon, varies — also September some years) — Lao biggest annual celebration
- Boun Ok Phansa (end of Buddhist Lent, full moon October) — paper lanterns released on Mekong
- Monsoon ends — value pricing + dry-season transition window
- Western Halloween prep
Vientiane in October — Full Picture
October is the year's best value-for-quality window. Monsoon ends + dry season begins + air quality returns + Mekong starts clearing + pricing still at monsoon lows.
Rainfall drops from September's 320mm to October's 150mm (50% reduction). Rainy days from 19 to 11. Days cool from 31°C to 30°C with nights at 22°C. Patuxai rooftop views start returning to photogenic quality.
October signatures: Boun Ok Phansa (end of Buddhist Lent, October full moon varies year-by-year) brings the year's most magical Lao cultural night — paper lotus-leaf lanterns released on the Mekong + evening candlelit temple processions + village boat racing festival overlap (Boun Suang Heua). If your visit aligns with the dates, it's worth the entire trip alone.
Pricing window: boutique $40-90/night first half of October; climbs to $60-130 by month-end as November high season approaches. Target October 16-31 for the best value + improving weather combo. November 1 sees sharp pricing increase due to Boun That Luang preparations.
What to Wear & What to Pack
Monsoon tail + dry season transition. Rainfall drops to 150mm (50% of September). Quick-dry clothes + packable rain shell still useful. Days 30°C / 86°F + nights 22°C / 72°F start cooling.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
33.7°C
23.3°C
7.3/mo
Summer (Jun·Jul·Aug)
31.3°C
24°C
18/mo
Autumn (Sep·Oct·Nov)
Current30°C
21.3°C
11/mo
Winter (Dec·Jan·Feb)
29°C
17.7°C
1/mo
Vientiane Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| January (Best) | 28° | 17° | 1d·7mm | 8.5h | 70% | 8 | Busy | Peak |
| February (Best) | 31° | 19° | 1d·15mm | 9h | 65% | 9 | Busy | Peak |
| 33° | 22° | 2d·30mm | 8.5h | 60% | 11 | Moderate | Shoulder | |
| 35° | 24° | 6d·90mm | 8h | 65% | 11 | Busy | Peak | |
| 33° | 24° | 14d·200mm | 6.5h | 75% | 10 | Moderate | Low season | |
| 32° | 24° | 16d·240mm | 6h | 80% | 10 | Quiet | Low season | |
| 31° | 24° | 19d·280mm | 5.5h | 82% | 10 | Moderate | Shoulder | |
| 31° | 24° | 19d·300mm | 5h | 83% | 9 | Moderate | Shoulder | |
| 31° | 23° | 19d·320mm | 5h | 83% | 9 | Quiet | Low season | |
| 30° | 22° | 11d·150mm | 7h | 78% | 9 | Moderate | Low season | |
| November (Best) | 29° | 19° | 3d·25mm | 8.5h | 70% | 8 | Very busy | Peak |
| December (Best) | 28° | 17° | 1d·7mm | 8.5h | 70% | 8 | Busy | Peak |
View Other Months
Vientiane October Hotel Picks
Frequently Asked Questions
Is October a good time to visit Vientiane?
Vientiane in October is high. Tourist crowds are moderate and flight/hotel prices are low season.
What's the average temperature in Vientiane in October?
Vientiane October averages a high of 30°C and a low of 22°C.
Does it rain much in Vientiane in October?
Vientiane October averages 150mm of rainfall over about 11 rainy days.
What should I wear in Vientiane in October?
Monsoon tail + dry season transition. Rainfall drops to 150mm (50% of September). Quick-dry clothes + packable rain shell still useful. Days 30°C / 86°F + nights 22°C / 72°F start cooling.
What time are sunrise and sunset in Vientiane in October?
Vientiane October sunrise is 06:00 and sunset is 17:35, with 11h 35min of daylight.
What's the air quality like in Vientiane in October?
Vientiane October air quality (AQI) averages 45, rated Good. PM2.5 averages 22μg/m³.
What activities are recommended in Vientiane in October?
In October, Vientiane is great for Boun Ok Phansa lantern release (full moon, varies), Boat Racing Festival (Boun Suang Heua), Patuxai rooftop (air clearing).
Is October peak season in Vientiane?
Vientiane October crowds are moderate and prices are low season. You can travel relatively comfortably without long queues.
Best Months to Visit Vientiane
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.