Ko Lanta
September
Weather in Ko Lanta for September 2025
Your guide to Ko Lanta weather in September - trends and predictions
In general, the average temperature in Ko Lanta at the beginning of September is 27.9 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 28.1 °C by the end of September.
Ko Lanta experiences an exceptionally high level of rainfall in September, with more than 24 rainy days on average.
Is September a good time to visit Ko Lanta? check out the best time to travel to Ko Lanta page.
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3
Dry days
27
Rainy days
0
Snow days
28°/26°
Temperatures
25 km/h
Avg max wind
78 %
Avg humidity
Ko Lanta in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  28° | 2  28° | 3 28° | 4 27° | 5 28° | 6 28° | 7  28° |
| 8  29° | 9 28° | 10 28° | 11 28° | 12  28° | 13 28° | 14 28° |
| 15  28° | 16 28° | 17  28° | 18 28° | 19 28° | 20 28° | 21 28° |
| 22 28° | 23 27° | 24 28° | 25 28° | 26 28° | 27 27° | 28 29° |
| 29 29° | 30 28° |
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Temperatures trend during September in Ko Lanta
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 | 28° /27° | 24.9 mm | 6 | |
| 2 Sept. | Torrential rain shower | 28° /26° | 77.6 mm | 6 | |
| 3 Sept. | Moderate or heavy rain shower | 28° /26° | 34.2 mm | 6 | |
| 4 Sept. | Torrential rain shower | 27° /26° | 114.7 mm | 6 | |
| 5 Sept. | Torrential rain shower | 28° /26° | 126.9 mm | 6 | |
| 6 Sept. | Moderate or heavy rain shower | 28° /27° | 19.2 mm | 6 | |
| 7 Sept. | Light rain shower | 28° /27° | 12.8 mm | 6 | |
| 8 Sept. | Partly cloudy | 29° /27° | 7.4 mm | 7 | |
| 9 Sept. | Torrential rain shower | 28° /27° | 13.9 mm | 6 | |
| 10 Sept. | Torrential rain shower | 28° /26° | 32 mm | 6 | |
| 11 Sept. | Light rain shower | 28° /26° | 3.1 mm | 6 | |
| 12 Sept. | Cloudy | 28° /27° | 2.8 mm | 6 | |
| 13 Sept. | Cloudy | 28° /26° | 14.1 mm | 6 | |
| 14 Sept. | Partly cloudy | 28° /26° | 4.5 mm | 7 | |
| 15 Sept. | Overcast | 28° /26° | 9.6 mm | 6 | |
| 16 Sept. | Light rain shower | 28° /26° | 13.4 mm | 6 | |
| 17 Sept. | Patchy light drizzle | 28° /27° | 11.4 mm | 6 | |
| 18 Sept. | Light rain shower | 28° /26° | 16.8 mm | 6 | |
| 19 Sept. | Moderate or heavy rain shower | 28° /27° | 22.3 mm | 6 | |
| 20 Sept. | Moderate or heavy rain shower | 28° /26° | 14.5 mm | 6 | |
| 21 Sept. | Moderate or heavy rain shower | 28° /26° | 21.7 mm | 6 | |
| 22 Sept. | Torrential rain shower | 28° /26° | 72 mm | 6 | |
| 23 Sept. | Moderate or heavy rain shower | 27° /26° | 32.3 mm | 6 | |
| 24 Sept. | Moderate or heavy rain shower | 28° /25° | 33.9 mm | 6 | |
| 25 Sept. | Light rain shower | 28° /26° | 9.2 mm | 6 | |
| 26 Sept. | Light rain shower | 28° /26° | 11.8 mm | 6 | |
| 27 Sept. | Light rain shower | 27° /25° | 23.9 mm | 6 | |
| 28 Sept. | Patchy rain possible | 29° /26° | 2.4 mm | 6 | |
| 29 Sept. | Patchy rain possible | 29° /27° | 2.2 mm | 7 | |
| 30 Sept. | Patchy rain possible | 28° /27° | 1.6 mm | 6 | |
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Important Notice
Our weather forecast for Ko Lanta 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 Lanta forecast closer to your planned date for the most up-to-date weather information.
Ko Lanta in September - FAQ
What are the expected maximum and minimum temperatures in Ko Lanta during September?
During September, expect a variety of temperatures with highs around 28° and lows near 26°, suitable for diverse activities and preferences.
How much rainfall should be expected in Ko Lanta during September?
Significant rainfall exceeding 1246.8 mm is expected in Ko Lanta during September, occurring over more than 27 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Ko Lanta during September?
The average wind speed in Ko Lanta during September is 25 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Ko Lanta in September?
As you prepare for your trip to Ko Lanta 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 Lanta, 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 Ko Lanta
Explore the daily rainfall trends and prepare for Ko Lantas September weather 💧
UV exposure in Ko Lanta during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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