Brunei Darussalam
September
Weather in Brunei Darussalam for September 2025
Your guide to Brunei Darussalam weather in September - trends and predictions
In general, the average temperature in Brunei Darussalam at the beginning of September is 30.6 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 30 °C by the end of September.
Brunei Darussalam experiences an exceptionally high level of rainfall in September, with more than 20 rainy days on average.
Is September a good time to visit Brunei Darussalam? check out the best time to travel to Brunei Darussalam page.
- New! Chat with our AI weatherman - it’s amazing and free.
6
Dry days
24
Rainy days
0
Snow days
29°/24°
Temperatures
12 km/h
Avg max wind
81 %
Avg humidity
Brunei Darussalam in September average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  30° | 2 30° | 3 30° | 4  31° | 5  31° | 6 31° | 7  31° |
| 8 28° | 9 30° | 10 28° | 11 28° | 12  27° | 13  29° | 14 30° |
| 15 30° | 16 29° | 17 29° | 18 28° | 19 29° | 20 31° | 21 28° |
| 22 28° | 23 29° | 24 30° | 25 30° | 26 30° | 27  30° | 28 31° |
| 29 29° | 30 30° |
You can click on date
Access Brunei Darussalam weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during September in Brunei Darussalam
See the weather trend as well as the moving average line
September weather day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Light rain shower | 30° /24° | 14.8 mm | 7 | |
| 2 Sept. | Patchy rain possible | 30° /25° | 7.3 mm | 8 | |
| 3 Sept. | Light rain shower | 30° /25° | 4.5 mm | 7 | |
| 4 Sept. | Sunny | 31° /25° | 2.5 mm | 8 | |
| 5 Sept. | Thundery outbreaks possible | 31° /25° | 3.3 mm | 7 | |
| 6 Sept. | Light rain shower | 31° /24° | 8 mm | 7 | |
| 7 Sept. | Moderate or heavy rain shower | 31° /25° | 18.9 mm | 7 | |
| 8 Sept. | Light rain shower | 28° /23° | 28.2 mm | 7 | |
| 9 Sept. | Patchy rain possible | 30° /24° | 4.6 mm | 7 | |
| 10 Sept. | Light rain shower | 28° /24° | 24.6 mm | 7 | |
| 11 Sept. | Moderate or heavy rain shower | 28° /23° | 17.8 mm | 6 | |
| 12 Sept. | Overcast | 27° /23° | 4.6 mm | 6 | |
| 13 Sept. | Partly cloudy | 29° /24° | 7.8 mm | 7 | |
| 14 Sept. | Partly cloudy | 30° /24° | 1.8 mm | 8 | |
| 15 Sept. | Thundery outbreaks possible | 30° /24° | 3 mm | 7 | |
| 16 Sept. | Patchy rain possible | 29° /24° | 8.9 mm | 6 | |
| 17 Sept. | Patchy rain possible | 29° /24° | 25.2 mm | 7 | |
| 18 Sept. | Moderate or heavy rain shower | 28° /25° | 24.1 mm | 6 | |
| 19 Sept. | Light rain shower | 29° /23° | 3.3 mm | 7 | |
| 20 Sept. | Patchy rain possible | 31° /24° | 6.4 mm | 7 | |
| 21 Sept. | Light rain shower | 28° /23° | 15.3 mm | 6 | |
| 22 Sept. | Light rain shower | 28° /24° | 15.7 mm | 7 | |
| 23 Sept. | Partly cloudy | 29° /23° | 5.8 mm | 7 | |
| 24 Sept. | Partly cloudy | 30° /24° | 4.9 mm | 8 | |
| 25 Sept. | Thundery outbreaks possible | 30° /24° | 13.8 mm | 7 | |
| 26 Sept. | Patchy rain possible | 30° /23° | 5.4 mm | 7 | |
| 27 Sept. | Light drizzle | 30° /24° | 9 mm | 7 | |
| 28 Sept. | Light rain shower | 31° /24° | 3.3 mm | 8 | |
| 29 Sept. | Light rain shower | 29° /25° | 11.4 mm | 6 | |
| 30 Sept. | Light rain shower | 30° /24° | 6.4 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Brunei Darussalam in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Brunei Darussalam forecast closer to your planned date for the most up-to-date weather information.
Brunei Darussalam in September - FAQ
What are the expected maximum and minimum temperatures in Brunei Darussalam during September?
During September, expect a variety of temperatures with highs around 29° and lows near 24°, suitable for diverse activities and preferences.
How much rainfall should be expected in Brunei Darussalam during September?
Significant rainfall exceeding 334.9 mm is expected in Brunei Darussalam during September, occurring over more than 24 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Brunei Darussalam during September?
The average wind speed in Brunei Darussalam during September is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Brunei Darussalam in September?
As you prepare for your trip to Brunei Darussalam in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Brunei Darussalam, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Sandals/Flip-flops: Comfortable for warm climates
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
September rainfall patterns in Brunei Darussalam
Explore the daily rainfall trends and prepare for Brunei Darussalams September weather 💧
UV exposure in Brunei Darussalam during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Regions in Brunei Darussalam
Choose a region for an accurate weather forecasts
Top locations in Brunei Darussalam
Select a location for an accurate weather forecast
More Locations Quick links
You are here
Where is Brunei Darussalam?Get accurate weather forecasts for Brunei Darussalam, located at latitude 4.584 and longitude 114.231. Stay updated with localized weather information tailored for Brunei Darussalam.
Found a mistake?
We appreciate your attention to details. Tell us here.