Ko Si Chang
September
Weather in Ko Si Chang for September 2025
Your guide to Ko Si Chang weather in September - trends and predictions
In general, the average temperature in Ko Si Chang at the beginning of September is 28.7 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 28.4 °C by the end of September.
Ko Si Chang experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 231.4 mm.
Is September a good time to visit Ko Si Chang? check out the best time to travel to Ko Si Chang page.
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Temperatures
Rain 🌧️
More
1
Dry days
29
Rainy days
0
Snow days
29°/27°
Temperatures
23 km/h
Avg max wind
75 %
Avg humidity
Ko Si Chang Weather September
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Temperatures trend during September in Ko Si Chang
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September weather in Ko Si Chang day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Overcast | 29° /27° | 3.3 mm | 6 | |
| 2 Sept. |  Moderate or heavy rain shower | 28° /25° | 31.6 mm | 6 | |
| 3 Sept. | Moderate or heavy rain shower | 28° /26° | 35.9 mm | 6 | |
| 4 Sept. | Moderate or heavy rain shower | 29° /27° | 28.9 mm | 6 | |
| 5 Sept. | Overcast | 29° /27° | 0 mm | 6 | |
| 6 Sept. | Moderate rain at times | 29° /28° | 1.5 mm | 6 | |
| 7 Sept. |  Patchy rain possible | 29° /28° | 1.1 mm | 6 | |
| 8 Sept. | Patchy rain possible | 29° /28° | 1.5 mm | 6 | |
| 9 Sept. | Patchy rain possible | 29° /28° | 0.7 mm | 6 | |
| 10 Sept. | Moderate rain at times | 29° /28° | 1.2 mm | 6 | |
| 11 Sept. | Overcast | 29° /28° | 1.1 mm | 6 | |
| 12 Sept. | Patchy rain possible | 29° /28° | 0.3 mm | 6 | |
| 13 Sept. |  Heavy rain at times | 29° /26° | 5.7 mm | 6 | |
| 14 Sept. | Moderate rain at times | 28° /27° | 6 mm | 6 | |
| 15 Sept. | Heavy rain at times | 29° /28° | 2.1 mm | 6 | |
| 16 Sept. | Moderate or heavy rain shower | 29° /28° | 9.7 mm | 6 | |
| 17 Sept. | Moderate or heavy rain shower | 29° /28° | 6.1 mm | 6 | |
| 18 Sept. | Moderate or heavy rain shower | 28° /25° | 17.3 mm | 6 | |
| 19 Sept. | Heavy rain at times | 29° /25° | 7 mm | 6 | |
| 20 Sept. | Patchy rain possible | 28° /27° | 2.5 mm | 6 | |
| 21 Sept. | Moderate or heavy rain shower | 28° /26° | 11.1 mm | 6 | |
| 22 Sept. | Moderate or heavy rain shower | 29° /27° | 15.1 mm | 6 | |
| 23 Sept. | Patchy rain possible | 28° /27° | 3.6 mm | 6 | |
| 24 Sept. | Heavy rain at times | 28° /27° | 10.7 mm | 6 | |
| 25 Sept. | Patchy rain possible | 27° /24° | 11.4 mm | 6 | |
| 26 Sept. | Patchy rain possible | 28° /26° | 0.6 mm | 6 | |
| 27 Sept. | Moderate rain at times | 29° /27° | 2.4 mm | 6 | |
| 28 Sept. | Moderate or heavy rain shower | 29° /27° | 6.1 mm | 6 | |
| 29 Sept. | Patchy rain possible | 29° /27° | 0.6 mm | 6 | |
| 30 Sept. | Moderate or heavy rain shower | 29° /28° | 6.2 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Ko Si Chang 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 Ko Si Chang forecast closer to your planned date for the most up-to-date weather information.
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Ko Si Chang in September - FAQ
What are the expected maximum and minimum temperatures in Ko Si Chang during September?
During September, expect a variety of temperatures with highs around 29° and lows near 27°, suitable for diverse activities and preferences.
How much rainfall should be expected in Ko Si Chang during September?
Significant rainfall exceeding 231.4 mm is expected in Ko Si Chang during September, occurring over more than 29 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Ko Si Chang during September?
The average wind speed in Ko Si Chang during September is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Ko Si Chang in September?
As you prepare for your trip to Ko Si Chang 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 Ko Si Chang, 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 Ko Si Chang
Explore the daily rainfall trends and prepare for Ko Si Changs September weather 💧
UV exposure in Ko Si Chang during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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