VietnamAverage weather for Sơn La in September
It's hot in September in Sơn La with an average temperature of 30°C. Temperatures this month range from a low of 29°C to a high of 31°C. At night, you can expect temperatures between 20°C and 22°C.
Start of September
The month of September starts in Sơn La with hot temps, averaging around 31°C during the day and nights around 22°C. You can expect regular precipitation, but there will also be some sunny days in the early part of the month.
Mid September
By mid-September, daytime temps stay steady at around 31°C, with nights around 22°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of September
By the end of September, the average daytime temperature in Sơn La is around 30°C, while nighttime temps are about 21°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
In September, there is an average of 158 mm of precipitation, spread over 17 days. The wind speed is around 2 Bft, mostly coming from the Southeast.
Sơn La in September |
New York | ||
|---|---|---|---|
 Average temperature |
30°C | 27°C | |
 Max. temperature |
31°C | 31°C | |
| Min. temperature |
29°C | -5°C | |
 Total precipitation |
158 mm | 57 mm | |
| Rainy days |
17 days | 9 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 Sơn La?
Looking for sun? September isn’t a good month to be in Sơn La. The temperature is nice, but there’s too much chance of rain.
The typhoon season in Sơn La runs from June to November.
Temperature records
With 39°C in 2023, Sơn La reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 23°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 15°C to a highest value of 24°C.
Check out the climate of Sơn La for all months and discover the best travel time
Curious about the weather in other parts of Vietnam? Check out the climate and weather for spots like Hanoi, Halong Bay, Ho Chi Minh City, or explore other destinations in Vietnam.
Daily Temperature in September in Sơn La
This chart shows the average daily high and low temperatures in September for Sơn La, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in September in Sơn La
The chart below shows the average daily precipitation in September for Sơn La, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed 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 it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 17 days of precipitation in Sơn La.
Daily UV index in September in Sơn La
This chart shows the average daily UV index in September in Sơn La, 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 Sơn La over the years
This chart shows the average temperature in September in Sơn La, measured in degrees Celsius, over the past few years.
Total precipitation in September in Sơn La over the years
This chart shows the average precipitation in September in Sơn La, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in September for Sơn La
Click on any day in September to get detailed info about the usual weather on that day in Sơn La. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Sơn La
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Average weather in Sơn La by month
Click on a month below to see detailed weather info for Sơn La. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
