Weather in September in Vientiane
| < September > | ||
|---|---|---|
| Normal Max/ High Temperature | 28°C (82°F) | |
| Average Temperature | 27°C (81°F) | |
| Min/ Low Temperature | 24°C (75°F) | |
| Normal Precipitation | 295mm (11.6in) | |
| Number of Wet Days (probability of rain on a day) | 15 (50%) | |
| Average Sunlight per day | 05h 36' | |
| Average Daylight per day | 12h 12' | |
| Sunny (Cloudy) Daylight Hours | 46% (54%) | |
| Sun altitude at solar noon on the 21st day. | 72.7° | |
- The average temperature in Vientiane in September is hot at 27 °C (80.6 °F).
- Afternoons can be hot with average high temperatures reaching 27.5 °C (81.5 °F).
- Overnight temperatures are generally fairly hot with an average low of 24.1 °C (75.4 °F).
- The range/ variation of diurnal average temperatures in September is 3.4 °C (6.1 °F).
- Precipitation averages for September are high with 295mm (11.6 in) recorded across 15 days.
- The heavens above Vientiane are fair having on balance an unexceptional 5h 36' of glaring sunlight daily.
- The shortest day is 11h 57' long and the longest day is 12h 27' long with an average length of 12h 12'.
- There are approximately 6h 28' per day when the sun is occluded by cloud, haze, fog etc.
- It is sunny approximately 46.4% of daylight hours and cloudy 53.6% of daylight hours.
Weather Trend Graph for September in Vientiane, Laos
