Koh Chang in september: average Weather, Temperature and Climate
Weather in Koh Chang in september 2025
The weather in Koh Chang in september comes from statistical datas on the past years. You can view the weather statistics for all the month, but also by using the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
bad weather UV index: 7
Weather at 6am
81°F
Moderate rain at times
32% of time
27%
25%
10%
Weather at 12pm
86°F
Moderate rain at times
45% of time
34%
11%
7%
Weather at 6pm
81°F
Moderate rain at times
36% of time
29%
18%
11%
Weather at 3am
79°F
40%
24%
21%
11%
Evolution of daily average temperature and precipitation in Koh Chang in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Koh Chang in september.
The climate of Koh Chang in september is bad
the weather in Koh Chang in september is wet (with 18.2in of precipitation over 21 days). Unfortunately, the weather conditions is worsening than the previous month since in august there is an average of 24.3in of precipitation over 23 days.
The climate is very warm here this month. Temperatures are up to 86°F. The seasonal minimum is 81°F. Thus, the mean temperature average in september in Koh Chang is 83°F. Note that these seasonal averages are in contrast with those observed in Koh Chang in the month of september with a maximum record of 95°F in 2010 and a minimum record of 74°F in 2021. You You can hope to have about 19 days with temperatures over 86°F, or 63 of time.
On this month of september, day length in Koh Chang is generally 12:12. The sun rises at 06:00 and sunset is at 18:12.
September: another location in Thailand?
If you want to go to Thailand in september, there are destinations with better weather than Koh Chang:
In september, Chiang Mai, Doi Inthanon, Chawang, Chumphon, Lamphun and Nakhon Si Thammarat have good weather.
Finally, Bangkok, Chiang Rai, Hua Hin, Kanchanaburi, Khao Lak national Park and Khon Kaen have a tolerable climate, but better than Koh Chang.
Seasonal average climate and temperature of Koh Chang in september
Check below seasonal norms These statistics are generated from the weather statements earlier years of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 83°F | ||||
| Highest temperature | 86°F | ||||
| Lowest temperature | 81°F | ||||
| Highest record temperature | 95°F (2010) | ||||
| Lowest record temperature | 74°F (2021) | ||||
| Number of days at +86°F | 19 day(s) (63%) | ||||
| Number of days at +65°F | 30 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 85°F | ||||
| Lowest sea temperature | 84°F | ||||
| Highest sea temperature | 85°F | ||||
| Wind | |||||
| Wind speed | 12km/h | ||||
| Wind temperature | 81°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 18.2in | ||||
| Number of days with rainfall | 21 day(s) (69%) | ||||
| Record daily rainfall | 4.5in (2020) | ||||
| Other climate data | |||||
| Humidity | 88% | ||||
| Visibility | 8.66km | ||||
| Cloud cover | 49% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 12 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:00 | ||||
| Time of sunset | 18:12 | ||||
| Length of day | 12:12 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | bad | ||||
How was the weather last september?
Here is the day by day recorded weather in Koh Chang in september 2024:
77°F to 88°F
77°F to 85°F
77°F to 81°F
77°F to 81°F
77°F to 83°F
77°F to 83°F
79°F to 85°F
77°F to 83°F
77°F to 83°F
77°F to 86°F
77°F to 86°F
77°F to 88°F
77°F to 85°F
77°F to 79°F
77°F to 86°F
77°F to 86°F
77°F to 85°F
76°F to 77°F
76°F to 81°F
77°F to 83°F
77°F to 81°F
77°F to 81°F
77°F to 83°F
76°F to 86°F
76°F to 83°F
76°F to 86°F
76°F to 85°F
76°F to 86°F
77°F to 90°F
77°F to 88°F
Map: other cities in Thailand in september
Cities near Koh Chang:
| Koh Wai in september | tolerable weather |
| Trat in september | bad weather |
| Koh Kut (Koh Kood) in september | tolerable weather |
| Chanthaburi in september | bad weather |
| Klaeng in september | very bad weather |
| Ko Samet in september | very bad weather |
| Rayong in september | very bad weather |
| Sattahip in september | bad weather |
| Pattaya in september | bad weather |
| Bang Lamung in september | bad weather |
| Si Racha in september | bad weather |
| Sa Kaeo in september | bad weather |
Click over cities on the map for information about the weather in september.
Koh Chang
perfect weather
good
tolerable
bad
very bad
Weather data for Koh Chang in september:
Weather data for Koh Chang for september are derived from an average of the weather forecast since 2009 in Koh Chang. There is a margin of error and these forecasts are to be considered as general information only. The weather in Koh Chang can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Koh Chang.