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Vientiane weather in September

Weather in Vientiane: September

Average day temperature: 87.7°F
Average night temperature: 75.2°F
Number of sunny days: 7 days
Day length: 12.0 - 12.5 hours
Number of rainy days: 14 days
Precipitation totals: 7.5 in.

Air temperature in September, °F

Show year:
2024
2023
2022

The highest day temperature during September of 2024 was 91°F. At the same time the lowest night temperature was 71°F. Day and night temperature averages during September were 84.8°F and 74.5°F.

Sunny, partly cloudy and cloudy days

Mostly all days in September are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in September, in.

Precipitation total value in Vientiane in September is 8.2 in. It makes september one of the most rainy months of the year.

Wind speed in September, mph

The average wind speed value in September is 3.7 mph It makes September one of the least windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 3.9.

Best time for vacation in Vientiane

Sunniest months:
February 25 days
January 24 days
March 24 days
Warmest months:
April 100.0 °F
March 96.7 °F
May 96.4 °F
Coldest months:
December 83.7 °F
January 84.9 °F
August 87.0 °F
Rainiest months:
August 16 days
July 15 days
September 14 days
Windiest months:
March 4.6 mph
April 4.5 mph
February 4.3 mph

Vientiane on a weather map

Vientiane
+61°F
NW 4 mph
Feels like: +61°F
Precip.: 0%
Places in Laos:
Name
°F
+57°F
+61°F
+57°F
+59°F
+61°F
24 Hours Forecast
Vientiane
Local time: 00:31
December 23, monday
0300
57°F
W
1 mph
0600
55°F
W
2 mph
0900
66°F
S
1 mph
1200
79°F
NW
2 mph
1500
81°F
W
6 mph
1800
70°F
NW
3 mph
2100
66°F
E
0 mph
December 24, tuesday
0000
61°F
W
4 mph
Units of measurement: °C / °F