Temperatures in September
It's hot in September in Laos with an average temperature of 33°C. Temperatures this month range from a low of 32°C to a high of 34°C. At night, you can expect temperatures between 23°C and 24°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Laos in September. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of September
The month of September starts in Laos with hot temperatures, averaging around 33°C during the day and nights close to 24°C. Plenty of days with a chance of precipitation. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Mid-September
By mid-September, the average daytime temperature stays the same at 33°C, with nights close to 24°C. The chance of precipitation is high during this period. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
End of September
By the end of September, the average daytime temperature in Laos will be around 33°C, with nights close to 24°C. There’s a significant chance of many days with precipitation. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
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Precipitation in September
In September, there is an average of 260 mm of precipitation, spread over 17 days. The wind speed is around 3 Bft, mostly coming from the South.
Across the whole month, the average precipitation chance is 56% per day. Though that seems frequent, the weather’s variable. There are also a few days with lower precipitation chances.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Laos. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Laos in September |
UK | ||
|---|---|---|---|
 Average Temperature |
33°C | 20°C | |
 High Temp |
34°C | 22°C | |
| Low Temp |
32°C | 17°C | |
 Total Precipitation |
260 mm | 44 mm | |
| Rainy Days |
17 days | 8 days | |
August
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is September a good time to visit Laos?
After some sun? Then September isn’t the best time to be in Laos. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Laos in September
With 37°C, Laos hit the highest temperature in the last 10 years in September 2023. The lowest daytime temperature in this month was 26°C in 2023. The extreme night temperatures ranged from a low of 16°C to a high of 27°C.
Check out the climate of Laos for all months and discover the best travel time
The climate of Laos is based on weather data from Vientiane. Other locations might have different weather. You can check out all destinations in Laos for a full picture of the climate.
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Daily Temperature in September in Laos
This chart shows the average daily temperatures, both day and night, for each day in September in Laos, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in September in Laos
The chart below shows the average daily precipitation in September for Laos, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 17 days of rain in Laos.
Daily UV Index in September in Laos
This chart shows the average daily UV index in September in Laos, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in Laos Over the Years
This chart shows the average temperature in September in Laos, measured in degrees Celsius, over the past years.
Total Precipitation in September in Laos Over the Years
This chart shows the average precipitation in September in Laos, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for Laos
Click on a specific day in September for detailed info on the typical weather on that day in Laos. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Laos
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Average Weather in Laos by Month
Click on a month below to see detailed weather info for Laos. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
