Chittagong (Chattogram)
September
Weather in Chittagong for September 2025
Your guide to Chittagong weather in September - trends and predictions
In general, the average temperature in Chittagong at the beginning of September is 29.1 °C. As the month progressed, temperatures tended to remain steady, reaching an average of 29.1 °C by the end of September.
Chittagong experiences an exceptionally high level of rainfall in September, with more than 24 rainy days on average.
Is September a good time to visit Chittagong? check out the best time to travel to Chittagong page.
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4
Dry days
26
Rainy days
0
Snow days
29°/25°
Temperatures
19 km/h
Avg max wind
84 %
Avg humidity
Chittagong in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  29° | 2 29° | 3 30° | 4  29° | 5 29° | 6  30° | 7 28° |
| 8 29° | 9 30° | 10 29° | 11  29° | 12  29° | 13  28° | 14 28° |
| 15  29° | 16 29° | 17 29° | 18 28° | 19 30° | 20 30° | 21 30° |
| 22 30° | 23 29° | 24 29° | 25 28° | 26 30° | 27 29° | 28 30° |
| 29 29° | 30 29° |
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Temperatures trend during September in Chittagong
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Moderate or heavy rain shower | 29° /25° | 8.2 mm | 6 | |
| 2 Sept. | Moderate or heavy rain shower | 29° /26° | 3 mm | 6 | |
| 3 Sept. | Moderate or heavy rain shower | 30° /25° | 11.1 mm | 7 | |
| 4 Sept. | Light rain shower | 29° /26° | 4.6 mm | 6 | |
| 5 Sept. | Light rain shower | 29° /26° | 5.6 mm | 6 | |
| 6 Sept. | Torrential rain shower | 30° /26° | 24.5 mm | 7 | |
| 7 Sept. | Light rain shower | 28° /25° | 27.1 mm | 7 | |
| 8 Sept. | Light rain shower | 29° /26° | 5.9 mm | 7 | |
| 9 Sept. | Light rain shower | 30° /25° | 2.3 mm | 7 | |
| 10 Sept. | Light rain shower | 29° /25° | 5.7 mm | 6 | |
| 11 Sept. | Patchy light rain with thunder | 29° /25° | 11.9 mm | 6 | |
| 12 Sept. | Partly cloudy | 29° /25° | 11.7 mm | 7 | |
| 13 Sept. | Cloudy | 28° /25° | 15 mm | 6 | |
| 14 Sept. | Cloudy | 28° /25° | 30.3 mm | 7 | |
| 15 Sept. | Thundery outbreaks possible | 29° /25° | 2.4 mm | 6 | |
| 16 Sept. | Partly cloudy | 29° /25° | 4.3 mm | 7 | |
| 17 Sept. | Patchy rain possible | 29° /25° | 0.9 mm | 6 | |
| 18 Sept. | Moderate or heavy rain shower | 28° /25° | 20.3 mm | 6 | |
| 19 Sept. | Patchy light rain with thunder | 30° /25° | 7.8 mm | 7 | |
| 20 Sept. | Patchy light rain with thunder | 30° /26° | 5.8 mm | 7 | |
| 21 Sept. | Light rain shower | 30° /25° | 8.9 mm | 7 | |
| 22 Sept. | Patchy light rain with thunder | 30° /25° | 15.1 mm | 7 | |
| 23 Sept. | Patchy rain possible | 29° /25° | 4.7 mm | 6 | |
| 24 Sept. | Patchy rain possible | 29° /25° | 7.4 mm | 6 | |
| 25 Sept. | Patchy rain possible | 28° /25° | 7.1 mm | 6 | |
| 26 Sept. | Patchy rain possible | 30° /25° | 6.4 mm | 6 | |
| 27 Sept. | Light rain shower | 29° /25° | 5.7 mm | 6 | |
| 28 Sept. | Patchy light rain with thunder | 30° /26° | 6.3 mm | 7 | |
| 29 Sept. | Light rain shower | 29° /25° | 12.3 mm | 6 | |
| 30 Sept. | Light rain shower | 29° /26° | 8.8 mm | 6 | |
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Important Notice
Our weather forecast for Chittagong 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 Chittagong forecast closer to your planned date for the most up-to-date weather information.
Chittagong in September - FAQ
What are the expected maximum and minimum temperatures in Chittagong during September?
During September, expect a variety of temperatures with highs around 29° and lows near 25°, suitable for diverse activities and preferences.
How much rainfall should be expected in Chittagong during September?
Significant rainfall exceeding 288.3 mm is expected in Chittagong during September, occurring over more than 26 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Chittagong during September?
The average wind speed in Chittagong during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Chittagong in September?
As you prepare for your trip to Chittagong 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 Chittagong, 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 Chittagong
Explore the daily rainfall trends and prepare for Chittagongs September weather 💧
UV exposure in Chittagong during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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