Brunei in september: average Weather, Temperature and Climate, Where to go?
Weather in Brunei in september 2025
Below, you have access to the weather forecast for september for most popular cities in Brunei. These forecasts are statistics for the month of september from weather reports for over 10 years. The percentage indicates the probability of having the weather mentioned.
Average weather in september in Bandar Seri Begawan
tolerable weather UV index: 7
Weather at 6am
81°F
Moderate rain at times
45% of time
21%
21%
15%
Weather at 12pm
88°F
Moderate rain at times
40% of time
37%
17%
5%
Weather at 6pm
83°F
Moderate rain at times
45% of time
26%
17%
13%
Weather at 3am
79°F
44%
24%
17%
13%
More information about the weather in Bandar Seri Begawan in september
Where to go in Brunei in september?
Where to go in Brunei in september: destination map
perfect weather
good
tolerable
bad
very bad
Where should you go in Brunei in september when it comes to the weather?
Remember:
The climate in Brunei in september is tolerable across the board.
This month is not the best month to spend holidays in Brunei. The climate in Bangar, Pekan Tutong, Kuala Belait, Bandar Seri Begawan and Seria is bad. It's cold, the sun is not there all the time and you take the risk being faced with rain very frequently.
It's worse around the cities of Bangar, Pekan Tutong, Kuala Belait, Bandar Seri Begawan and Seria and surrounding areas where the climate is very bad. It is not recommended to visit these areas this month.
Climate in Brunei in september
Climate in Bandar Seri Begawan in september
In the month of september, the mean temperature in Bandar Seri Begawan is 85°F (maximum temperature is 88°F and minimum temperature is 81°F). The climate is very warm there in this month. With 11.3in over 16 days, you risk getting wet slightly throughout your holidays. But this is reasonably and it will not be continuous.
With an unfavorable weather, september is not recommended month to go in that area.
| September | |||
| Average temperature | 85°F | ||
| Highest temperature | 88°F | ||
| Lowest temperature | 81°F | ||
| Sea temperature | 85°F | ||
| Rainfall | 11.3in | ||
| Number of days with rainfall | 16 day(s) (55%) | ||
| Humidity | 80% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 38% | ||
| Length of day | 12:09 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Kuala Belait in september
In the month of september, the mean temperature in Kuala Belait is 85°F (maximum temperature is 90°F and minimum temperature is 81°F). The climate is very hot there in the month of september. With 8.7in over 13 days, the weather is rather to rain during your vacations. So remember to pack rain clothes.
With a bad weather, the month of september is not recommended month to go in this city in Brunei.
| September | |||
| Average temperature | 85°F | ||
| Highest temperature | 90°F | ||
| Lowest temperature | 81°F | ||
| Sea temperature | 86°F | ||
| Rainfall | 8.7in | ||
| Number of days with rainfall | 13 day(s) (45%) | ||
| Humidity | 82% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 38% | ||
| Length of day | 12:08 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Sukang in september
In the month of september, the mean temperature in Sukang is 86°F (maximum temperature is 92°F and minimum temperature is 79°F). The climate is very warm in that locality in september. With 10.4in over 15 days, you will suffer the rain for your trip. Remember to pack Rain coats.
| September | |||
| Average temperature | 86°F | ||
| Highest temperature | 92°F | ||
| Lowest temperature | 79°F | ||
| Rainfall | 10.4in | ||
| Number of days with rainfall | 15 day(s) (51%) | ||
| Humidity | 86% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 41% | ||
| Length of day | 12:08 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Bangar in september
In the month of september, the mean temperature in Bangar is 85°F (maximum temperature is 90°F and minimum temperature is 79°F). The climate is very warm here in september. With 10.4in over 16 days, rain may occur for your journey. But this is rather moderate and it will not be continuous.
With an unfavorable weather, the month of september is not the best time to go there.
| September | |||
| Average temperature | 85°F | ||
| Highest temperature | 90°F | ||
| Lowest temperature | 79°F | ||
| Rainfall | 10.4in | ||
| Number of days with rainfall | 16 day(s) (54%) | ||
| Humidity | 83% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 40% | ||
| Length of day | 12:08 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Pekan Tutong in september
In the month of september, maximum temperature is 88°F and minimum temperature is 81°F (for an average temperature of 85°F). The climate is very warm here in this month. With 11.3in over 16 days, you will experience some showers for your stay. But this is rather moderate and it will not be continuous.
With a bad weather, september is not the best time to go in Pekan Tutong in Brunei.
| September | |||
| Average temperature | 85°F | ||
| Highest temperature | 88°F | ||
| Lowest temperature | 81°F | ||
| Sea temperature | 85°F | ||
| Rainfall | 11.3in | ||
| Number of days with rainfall | 16 day(s) (55%) | ||
| Humidity | 80% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 38% | ||
| Length of day | 12:09 | ||
| Our opinion at whereandwhen.net | tolerable |
All cities in Brunei in september
| Bandar Seri Begawan in september | tolerable weather |
| Kuala Belait in september | tolerable weather |
| Sukang in september | tolerable weather |
| Bangar in september | tolerable weather |
| Pekan Tutong in september | tolerable weather |
| Seria in september | tolerable weather |
Weather data for Brunei in september:
Weather data for Brunei in september is derived from an average of the weather forecast since 2009 in Brunei. There is a margin of error and these forecasts are to be considered as general information only. The weather in Brunei can vary slightly from year to year, but these predictions should limit surprises. So you can pack your bags and check when is the best time to go to Brunei.