Vientiane Weather: September
 |
Average Day Temperature: | 91.7°F |
|
Average Night Temperature: | 78.0°F |
|
Number of Sunny Days: | 6 days |
| Sunshine Hours: | 12.0 - 12.5 hours | |
|
Number of Rainy Days: | 14 days |
| Precipitation Totals: | 7.4 in | |
| detailed information | ||
14 day weather
forecast
forecast
| Vientiane |
When is the Best
Time to Visit?
Time to Visit?
| Vientiane |
Air Temperature in September, °F
The highest day temperature in September 2025 was 95°F. The lowest night temperature was 76°F. The average values for day and night temperatures during September were 89.3°F и 77.0°F respectivly.
Sunny, Cloudy and Gloomy days
Most of the days in September are gloomy but you can also expect sunny days.
Precipitation Totals in September, in
Precipitation total in September for Vientiane is 7.4 in. It makes september one of the most rainy months of the year.
Wind Speed in September, mph
The average wind speed in September is 3.5 mph. This value is relatively stable throughout the year.
Average Sunny Hours Per Day
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Vientiane in September is 5.8 hours.
Vientiane on the Weather Map
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Vientiane
Local time: 01:56
18 feb, wednesday
| 0300 |  |
76°F | NW 5 mph |
| 0600 | |
72°F | NW 3 mph |
| 0900 |  |
82°F | W 7 mph |
| 1200 | |
94°F | W 6 mph |
| 1500 | |
98°F | NW 5 mph |
| 1800 | |
92°F | N 4 mph |
| 2100 | |
88°F | W 13 mph |
19 feb, thursday
| 0000 | |
78°F | W 9 mph |