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Hourly Forecast
Daylight Hours
06:02
Sunrise
17:58
Sunset
Moon
Waxing Gibbous
17:06
Moonrise
05:21
Moonset
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View stargazing scoreWeather in Vientiane today, September 25, 2026
Expect unsettled, showery conditions in Vientiane on September 25, 2026 as rain moves through. The day opens on a wet note and needs flexible outdoor plans. The morning carries the wetter risk, with rain chances near 82% and the highest odds around 11:00. Cloud is also thick early on, peaking near 93% around 01:00.
Expect highs of 30°C and cooler readings close to 24°C. Relative humidity sits between 71% and 97%, reaching its peak around 01:00. Airflow remains manageable, reaching about 3.8 km/h around 16:00.
Afternoon showers stay in play, peaking near 94% around 14:00. Skies remain cluttered, with cover about 69% by 19:00. Horizontal visibility sits around 14.2 km, briefly nearer 5.3 km. The sun rises at 06:02 and sets at 17:58, for a total of 11 hours 55 minutes of sunlight today.
Taken together, Vientiane looks wet enough on September 25, 2026 that flexible outdoor plans work best, with temperatures peaking near 30°C.
Frequently asked questions about weather in Vientiane
How warm does it get in Vientiane?
The warmest month in Vientiane is April, with average high temperatures of 36°C. The average temperature during this period is around 30°C.
How cold does it get in Vientiane?
The coldest month in Vientiane is January, with average low temperatures of 17°C. The average temperature during this period is around 23°C.
What is the wettest time of year in Vientiane?
The wettest month in Vientiane is August, with an average of 400mm of precipitation.
What is the driest time of year in Vientiane?
The driest month in Vientiane is December, with an average of 6mm of precipitation.
