Temperatures in September
It's warm in September in Bontean with an average temperature of 26°C. Temperatures this month range from a low of 25°C to a high of 27°C. At night, you can expect temperatures between 19°C and 19°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Bontean 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 Bontean with warm temperatures, averaging around 26°C during the day and nights close to 19°C. Plenty of days with a chance of precipitation.
Since temperatures can differ between day and night, it’s a good idea to dress in layers.
Mid-September
By mid-September, the average daytime temperature rises to around 27°C, with nights close to 19°C. The chance of precipitation is high during this period.
Temperatures vary between day and night, so it’s smart to wear layers.
End of September
By the end of September, the average daytime temperature in Bontean will be around 26°C, with nights close to 19°C. There’s a significant chance of many days with precipitation.
As it gets cooler in the evening, it’s best to wear layers.
Precipitation in September
In September, there is an average of 279 mm of precipitation, spread over 25 days. The wind speed is around 2 Bft, mostly coming from the Southwest.
With an average precipitation chance of 84% this month, rainy days are almost inevitable.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Bontean. 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.
Bontean in September |
London | ||
|---|---|---|---|
 Average Temperature |
26°C | 20°C | |
 High Temp |
27°C | 22°C | |
| Low Temp |
25°C | 17°C | |
 Total Precipitation |
279 mm | 44 mm | |
| Rainy Days |
25 days | 8 days | |
August
UV index
The UV index is a maximum of 9 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 Bontean?
After some sun? Then September isn’t the best time to be in Bontean. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Bontean in September
With 30°C, Bontean hit the highest temperature in the last 10 years in September 2020. The lowest daytime temperature in this month was 17°C in 2022. The extreme night temperatures ranged from a low of 14°C to a high of 21°C.
Check out the climate of Bontean for all months and discover the best travel time
Curious about the climate in other parts of Indonesia? Check out the weather and climate in places like Java, Gili Air, or have a look at other destinations in Indonesia.
Daily Temperature in September in Bontean
This chart shows the average daily temperatures, both day and night, for each day in September in Bontean, 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 Bontean
The chart below shows the average daily precipitation in September for Bontean, 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 25 days of rain in Bontean.
Daily UV Index in September in Bontean
This chart shows the average daily UV index in September in Bontean, 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 Bontean Over the Years
This chart shows the average temperature in September in Bontean, measured in degrees Celsius, over the past years.
Total Precipitation in September in Bontean Over the Years
This chart shows the average precipitation in September in Bontean, 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 Bontean
Click on a specific day in September for detailed info on the typical weather on that day in Bontean. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Bontean
Have you been to Bontean in September?
Share your weather experience in September in Bontean.
Average Weather in Bontean by Month
Click on a month below to see detailed weather info for Bontean. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
