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Weather in Ko Chang for September 2025

Your guide to Ko Chang weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Ko Chang is slightly cooler than the historical average by -1 °C.

  • The forecast for the next days in Ko Chang predicts temperatures to be around 28 °C, close to the historical average.

  • In general, the average temperature in Ko Chang at the beginning of September is 27.7 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 28.6 °C by the end of September.

    • Rain 🌧️

  • Ko Chang experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 451.5 mm.

    • More

  • Is September a good time to visit Ko Chang? check out the best time to travel to Ko Chang page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
1
Dry days
Average rainy days
29
Rainy days
Average snowy days
0
Snow days
Average temperatures
29°/24°
Temperatures
Average wind speed
13 km/h
Avg max wind
Average humidity
87 %
Avg humidity

Ko Chang Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Light rain shower
29°
2
Moderate or heavy rain shower
27°
3
Moderate or heavy rain shower
27°
4
Light rain shower
27°
5
Light rain shower
28°
6
Light rain shower
28°
7
Patchy light rain with thunder
28°
8
Light rain shower
27°
9
Light rain shower
27°
10
Light rain shower
28°
11
Light rain shower
30°
12
Light rain shower
31°
13
Light rain shower
29°
14
Light rain shower
27°
15
Light rain shower
29°
16
Moderate rain
29°
17
Heavy rain
29°
18
Heavy rain
27°
19
Heavy rain
27°
20
Heavy rain
28°
21
Moderate rain
29°
22
Patchy rain possible
29°
23
Moderate rain
28°
24
Heavy rain
27°
25
Moderate rain
27°
26
Moderate rain
28°
27
Patchy rain possible
29°
28
Patchy rain possible
29°
29
Patchy rain possible
29°
30
Light rain shower
31°

Temperatures trend during September in Ko Chang

See the weather trend as well as the moving average line

September weather in Ko Chang day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Light rain shower
Light rain shower
 29° /24° 24.2 mm 7
2 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 27° /24° 69.7 mm 6
3 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 27° /24° 35.1 mm 6
4 Sept. Light rain shower
Light rain shower
 27° /24° 27.6 mm 6
5 Sept. Light rain shower
Light rain shower
 28° /24° 19.5 mm 6
6 Sept. Light rain shower
Light rain shower
 28° /24° 19.4 mm 6
7 Sept. Patchy light rain with thunder
Patchy light rain with thunder
 28° /24° 23.1 mm 6
8 Sept. Light rain shower
Light rain shower
 27° /24° 31.5 mm 6
9 Sept. Light rain shower
Light rain shower
 27° /24° 27.2 mm 6
10 Sept. Light rain shower
Light rain shower
 28° /24° 12.5 mm 7
11 Sept. Light rain shower
Light rain shower
 30° /25° 4.3 mm 7
12 Sept. Light rain shower
Light rain shower
 31° /24° 5.8 mm 7
13 Sept. Light rain shower
Light rain shower
 29° /24° 11 mm 6
14 Sept. Light rain shower
Light rain shower
 27° /24° 16.4 mm 6
15 Sept. Light rain shower
Light rain shower
 29° /25° 8.5 mm 6
16 Sept. Moderate rain
Moderate rain
 29° /27° 5.8 mm 2.7
17 Sept. Heavy rain
Heavy rain
 29° /28° 26.4 mm 1.4
18 Sept. Heavy rain
Heavy rain
 27° /27° 52.9 mm 1.6
19 Sept. Heavy rain
Heavy rain
 27° /26° 151.1 mm 0.3
20 Sept. Heavy rain
Heavy rain
 28° /27° 35.5 mm 0.5
21 Sept. Moderate rain
Moderate rain
 29° /28° 8.6 mm 6
22 Sept. Patchy rain possible
Patchy rain possible
 29° /27° 2.3 mm 6
23 Sept. Moderate rain
Moderate rain
 28° /27° 11 mm 6
24 Sept. Heavy rain
Heavy rain
 27° /26° 22.5 mm 6
25 Sept. Moderate rain
Moderate rain
 27° /26° 13.1 mm 6
26 Sept. Moderate rain
Moderate rain
 28° /27° 6.2 mm 6
27 Sept. Patchy rain possible
Patchy rain possible
 29° /27° 0.2 mm 6
28 Sept. Patchy rain possible
Patchy rain possible
 29° /27° 0.2 mm 6
29 Sept. Patchy rain possible
Patchy rain possible
 29° /27° 1.4 mm 6
30 Sept. Light rain shower
Light rain shower
 31° /24° 12.2 mm 7
Next
Important Notice
Our weather forecast for Ko 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 Chang forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Ko Chang weather in September vs August vs October

Compare September weather in Ko Chang with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
AugustSeptemberOctober
WeatherPatchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Temperatures30°/25°29°/24°30°/24°
Rainfall220 mm451 mm356 mm
Wind11.1 km/h12.7 km/h7 km/h
Humidity83%87%86%
Rainy days27 days29 days31 days
Dry days4 days1 days0 days

Planning a trip to Ko Chang? Discover the best time to visit

Ko Chang in September - FAQ

What are the expected maximum and minimum temperatures in Ko Chang during September?
During September, expect a variety of temperatures with highs around 29° and lows near 24°, suitable for diverse activities and preferences.
How much rainfall should be expected in Ko Chang during September?
Significant rainfall exceeding 451.5 mm is expected in Ko 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 Chang during September?
The average wind speed in Ko Chang during September is 13 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Ko Chang in September?

As you prepare for your trip to Ko 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 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 Chang

Explore the daily rainfall trends and prepare for Ko Changs September weather 💧

UV exposure in Ko Chang during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

Quick links

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Location coordinates Where is Ko Chang?

Get accurate weather forecasts for Ko Chang, located at latitude 12.049 and longitude 102.299. Stay updated with localized weather information tailored for Ko Chang.

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