Koh Phangan
September
Weather in Koh Phangan for September 2025
Your guide to Koh Phangan weather in September - trends and predictions
In general, the average temperature in Koh Phangan at the beginning of September is 28.6 °C. As the month progressed, temperatures tended to remain steady, reaching an average of 28.6 °C by the end of September.
Koh Phangan experiences an exceptionally high level of rainfall in September, with more than 24 rainy days on average.
Is September a good time to visit Koh Phangan? check out the best time to travel to Koh Phangan page.
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2
Dry days
28
Rainy days
0
Snow days
28°/27°
Temperatures
30 km/h
Avg max wind
76 %
Avg humidity
Koh Phangan in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  29° | 2 28° | 3 28° | 4 28° | 5 29° | 6 29° | 7  29° |
| 8  29° | 9 29° | 10 29° | 11  29° | 12  29° | 13  29° | 14 28° |
| 15 28° | 16 28° | 17 28° | 18 28° | 19  28° | 20 29° | 21 29° |
| 22 29° | 23 29° | 24 28° | 25 28° | 26 28° | 27 28° | 28 29° |
| 29 29° | 30 30° |
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Temperatures trend during September in Koh Phangan
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° /26° | 9.9 mm | 6 | |
| 2 Sept. | Moderate or heavy rain shower | 28° /26° | 16.8 mm | 6 | |
| 3 Sept. | Moderate or heavy rain shower | 28° /26° | 9.3 mm | 6 | |
| 4 Sept. | Moderate or heavy rain shower | 28° /27° | 10.4 mm | 6 | |
| 5 Sept. | Moderate or heavy rain shower | 29° /26° | 20.1 mm | 6 | |
| 6 Sept. | Moderate or heavy rain shower | 29° /27° | 18.9 mm | 6 | |
| 7 Sept. | Cloudy | 29° /27° | 3.1 mm | 6 | |
| 8 Sept. | Patchy rain possible | 29° /28° | 1.1 mm | 6 | |
| 9 Sept. | Patchy rain possible | 29° /27° | 1.6 mm | 7 | |
| 10 Sept. | Light rain shower | 29° /27° | 7.8 mm | 6 | |
| 11 Sept. | Overcast | 29° /27° | 0.9 mm | 7 | |
| 12 Sept. | Moderate rain | 29° /27° | 2.3 mm | 6 | |
| 13 Sept. | Partly cloudy | 29° /27° | 5.4 mm | 7 | |
| 14 Sept. | Overcast | 28° /26° | 4.1 mm | 6 | |
| 15 Sept. | Overcast | 28° /26° | 1.6 mm | 6 | |
| 16 Sept. | Light rain shower | 28° /27° | 5.9 mm | 6 | |
| 17 Sept. | Light rain shower | 28° /27° | 7.2 mm | 6 | |
| 18 Sept. | Light rain shower | 28° /27° | 9 mm | 6 | |
| 19 Sept. | Patchy light rain | 28° /26° | 3.6 mm | 6 | |
| 20 Sept. | Patchy rain possible | 29° /27° | 1.3 mm | 6 | |
| 21 Sept. | Moderate or heavy rain shower | 29° /27° | 10.3 mm | 6 | |
| 22 Sept. | Moderate or heavy rain shower | 29° /27° | 7.1 mm | 6 | |
| 23 Sept. | Light rain shower | 29° /27° | 4.7 mm | 6 | |
| 24 Sept. | Light rain shower | 28° /27° | 5.1 mm | 6 | |
| 25 Sept. | Light rain shower | 28° /25° | 6.4 mm | 6 | |
| 26 Sept. | Light rain shower | 28° /26° | 11.6 mm | 7 | |
| 27 Sept. | Light rain shower | 28° /26° | 9.6 mm | 6 | |
| 28 Sept. | Light rain shower | 29° /26° | 5.6 mm | 6 | |
| 29 Sept. | Patchy rain possible | 29° /27° | 6.9 mm | 7 | |
| 30 Sept. | Partly cloudy | 30° /27° | 0.2 mm | 7 | |
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Important Notice
Our weather forecast for Koh Phangan 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 Koh Phangan forecast closer to your planned date for the most up-to-date weather information.
Koh Phangan in September - FAQ
What are the expected maximum and minimum temperatures in Koh Phangan during September?
During September, expect a variety of temperatures with highs around 28° and lows near 27°, suitable for diverse activities and preferences.
How much rainfall should be expected in Koh Phangan during September?
Significant rainfall exceeding 318.7 mm is expected in Koh Phangan during September, occurring over more than 28 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Koh Phangan during September?
The average wind speed in Koh Phangan during September is 30 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Koh Phangan in September?
As you prepare for your trip to Koh Phangan 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 Koh Phangan, 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
- 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 Koh Phangan
Explore the daily rainfall trends and prepare for Koh Phangans September weather 💧
UV exposure in Koh Phangan during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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