Climate averages 1991–2020
Vientiane weather
in October.
A hot, wet month: the 9th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a hot month in Vientiane: daytime highs average 29.3°C and nights cool to about 22.7°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 101 mm of rain on roughly 12 days, which makes October a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 45 min on an average October day.
The nearest other city in this atlas is Udon Thani (64 km away). In October its highs average 29.4°C, about as warm as Vientiane, with 96 mm of rain.
Among the 4 cities listed in Laos, Vientiane ranks joint 2nd of 4 for the warmest October highs and 1st of 4 for the driest October (rainfall, lowest first). The mean October high of those 4 cities is 29.4°C; Vientiane is level with that mean.
From October to November, average highs fall by 0.7°C to 28.7°C, and monthly rainfall falls from 101 mm to 22 mm.
The annual picture
October in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Vientiane climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.3°C17.0°C | 17.0°C | 11 | 1.8 | 11.211 h |
| February | 29.8°C18.9°C | 18.9°C | 15 | 2.2 | 11.512 h |
| March | 32.6°C22.1°C | 22.1°C | 36 | 6.2 | 12.012 h |
| April | 33.8°C24.4°C | 24.4°C | 75 | 11.9 | 12.513 h |
| May | 31.9°C24.7°C | 24.7°C | 261 | 23.4 | 13.013 h |
| June | 30.5°C24.7°C | 24.7°C | 316 | 25.0 | 13.213 h |
| July | 29.9°C24.4°C | 24.4°C | 372 | 26.5 | 13.113 h |
| August | 29.6°C24.1°C | 24.1°C | 401 | 27.4 | 12.713 h |
| September | 29.6°C23.8°C | 23.8°C | 300 | 24.7 | 12.312 h |
| October, selected | 29.3°C22.7°C | 22.7°C | 101 | 11.9 | 11.712 h |
| November | 28.7°C20.2°C | 20.2°C | 22 | 3.0 | 11.311 h |
| December | 26.9°C17.3°C | 17.3°C | 8.4 | 1.2 | 11.111 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
October in nearby cities
- Udon Thani in OctoberThailand · 64 kmHigh 29.4°C · Low 22.3°C · 96 mm rain
- Khon Kaen in OctoberThailand · 171 kmHigh 29.6°C · Low 22.5°C · 104 mm rain
- Sakon Nakhon in OctoberThailand · 187 kmHigh 29.5°C · Low 22.1°C · 94 mm rain
- Thakhèk in OctoberLaos · 244 kmHigh 29.7°C · Low 21.4°C · 111 mm rain
- Savannakhet in OctoberLaos · 277 kmHigh 29.3°C · Low 22.1°C · 109 mm rain
- Lampang in OctoberThailand · 330 kmHigh 29.0°C · Low 22.5°C · 126 mm rain
- Vinh in OctoberVietnam · 336 kmHigh 27.2°C · Low 22.8°C · 329 mm rain
- Nakhon Ratchasima in OctoberThailand · 337 kmHigh 29.6°C · Low 22.5°C · 138 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Vientiane) is explained once on the Vientiane year overview and on the Sources, method and limits page.