Weather in Bangkok for September 2027
In general, the average temperature in Bangkok at the beginning of September is 32.2 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 29.6 °C by the end of September.
Bangkok experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 292.1 mm.
Is September a good time to visit Bangkok? check out the best time to travel to Bangkok page.
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Bangkok Weather September
Temperatures trend during September in Bangkok
September weather in Bangkok day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain | 33° /26° | 7.9 mm | 6 | |
| 2 Sept. |  Moderate or heavy rain shower | 32° /26° | 9.3 mm | 6 | |
| 3 Sept. | Light rain | 32° /26° | 4.5 mm | 8 | |
| 4 Sept. | Light rain | 33° /25° | 4.1 mm | 6 | |
| 5 Sept. | Light rain | 31° /25° | 5.3 mm | 7 | |
| 6 Sept. | Light rain | 33° /25° | 6.7 mm | 7 | |
| 7 Sept. |  Moderate rain | 32° /25° | 12.1 mm | 6 | |
| 8 Sept. | Moderate rain | 30° /25° | 15.5 mm | 6 | |
| 9 Sept. | Moderate or heavy rain shower | 31° /25° | 8.5 mm | 6 | |
| 10 Sept. | Moderate or heavy rain shower | 32° /25° | 8.2 mm | 6 | |
| 11 Sept. | Light rain | 31° /25° | 3.6 mm | 6 | |
| 12 Sept. | Light rain | 31° /25° | 6.2 mm | 6 | |
| 13 Sept. | Moderate or heavy rain shower | 31° /25° | 8.5 mm | 6 | |
| 14 Sept. | Moderate or heavy rain shower | 31° /25° | 7 mm | 6 | |
| 15 Sept. | Moderate or heavy rain shower | 31° /25° | 8.2 mm | 6 | |
| 16 Sept. | Moderate or heavy rain shower | 31° /25° | 6.4 mm | 6 | |
| 17 Sept. | Light rain | 32° /25° | 4.1 mm | 6 | |
| 18 Sept. | Moderate or heavy rain shower | 31° /26° | 7.6 mm | 6 | |
| 19 Sept. | Moderate rain | 31° /25° | 10.9 mm | 6 | |
| 20 Sept. | Moderate or heavy rain shower | 31° /25° | 8.9 mm | 6 | |
| 21 Sept. | Moderate rain | 31° /25° | 10 mm | 6 | |
| 22 Sept. | Moderate rain | 31° /25° | 16.9 mm | 6 | |
| 23 Sept. | Moderate rain | 31° /25° | 12.8 mm | 6 | |
| 24 Sept. | Moderate rain | 30° /25° | 11.5 mm | 6 | |
| 25 Sept. |  Heavy rain | 29° /25° | 32.4 mm | 6 | |
| 26 Sept. | Moderate rain | 29° /24° | 16 mm | 6 | |
| 27 Sept. | Moderate rain | 28° /24° | 15.4 mm | 6 | |
| 28 Sept. | Light rain | 30° /25° | 8.3 mm | 6 | |
| 29 Sept. | Light rain | 30° /25° | 8 mm | 6 | |
| 30 Sept. | Light rain | 31° /25° | 7.3 mm | 6 | |
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Bangkok weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather |  Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 32°/26° | 31°/25° | 31°/25° |
| Rainfall | 144 mm | 292 mm | 245 mm |
| Wind | 16.6 km/h | 14.5 km/h | 11.5 km/h |
| Humidity | 67% | 76% | 76% |
| Rainy days | 21 days | 25 days | 24 days |
| Dry days | 10 days | 5 days | 7 days |
Planning a trip to Bangkok? Discover the best time to visit
Bangkok in September - FAQ
What are the expected maximum and minimum temperatures in Bangkok during September?
How much rainfall should be expected in Bangkok during September?
What are the typical wind conditions in Bangkok during September?
September rainfall patterns in Bangkok
UV exposure in Bangkok during September
What to pack to Bangkok in September?
Warm & sunny · highs around 31 °C, frequent showers
As you prepare for your trip to Bangkok 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 Bangkok, during September, is comfortable and enjoyable, regardless of the weather conditions.
🧥 Clothing
👟 Footwear
🎒 Accessories
🧴 Personal Items
Where is Bangkok?Get accurate weather forecasts for Bangkok, located at latitude 13.754 and longitude 100.501. Stay updated with localized weather information tailored for Bangkok.