Temperatures in September
It's hot in September in Koh Thonsay with an average temperature of 31°C. Temperatures this month range from a low of 30°C to a high of 32°C. At night, you can expect temperatures between 25°C and 26°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Koh Thonsay 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 Koh Thonsay with hot temperatures, averaging around 32°C during the day and nights close to 26°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 drops to around 31°C, with nights close to 26°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 Koh Thonsay will be around 32°C, with nights close to 26°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.
Precipitation in September
In September, there is an average of 394 mm of precipitation, spread over 24 days. The wind speed is around 3 Bft, mostly coming from the Southwest.
There’s an average 79% chance of precipitation per day this month.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Koh Thonsay. 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.
Koh Thonsay in September |
UK | ||
|---|---|---|---|
 Average Temperature |
31°C | 20°C | |
 High Temp |
32°C | 22°C | |
| Low Temp |
30°C | 17°C | |
 Total Precipitation |
394 mm | 44 mm | |
| Rainy Days |
24 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 Koh Thonsay?
After some sun? Then September isn’t the best time to be in Koh Thonsay. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Koh Thonsay in September
With 35°C, Koh Thonsay hit the highest temperature in the last 10 years in September 2019. The lowest daytime temperature in this month was 27°C in 2022. The extreme night temperatures ranged from a low of 18°C to a high of 29°C.
Check out the climate of Koh Thonsay for all months and discover the best travel time
Daily Temperature in September in Koh Thonsay
This chart shows the average daily temperatures, both day and night, for each day in September in Koh Thonsay, 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 Koh Thonsay
The chart below shows the average daily precipitation in September for Koh Thonsay, 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 24 days of rain in Koh Thonsay.
Daily UV Index in September in Koh Thonsay
This chart shows the average daily UV index in September in Koh Thonsay, 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 Koh Thonsay Over the Years
This chart shows the average temperature in September in Koh Thonsay, measured in degrees Celsius, over the past years.
Total Precipitation in September in Koh Thonsay Over the Years
This chart shows the average precipitation in September in Koh Thonsay, 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 Koh Thonsay
Click on a specific day in September for detailed info on the typical weather on that day in Koh Thonsay. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Koh Thonsay
Have you been to Koh Thonsay in September?
Share your weather experience in September in Koh Thonsay.
Average Weather in Koh Thonsay by Month
Click on a month below to see detailed weather info for Koh Thonsay. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Koh Thonsay for all months at once
