Koh Phangan in september: average Weather, Temperature and Climate
Weather in Koh Phangan in september 2025
The weather in Koh Phangan in september comes from statistical datas on the last years. You can view the weather statistics for the whole month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
tolerable weather UV index: 7
Weather at 6am
83°F
Partly Cloudy
34% of time
31%
18%
14%
Weather at 12pm
85°F
Clear/Sunny
29% of time
27%
26%
16%
Weather at 6pm
85°F
Moderate rain at times
34% of time
27%
20%
17%
Weather at 3am
85°F
34%
34%
14%
14%
Evolution of daily average temperature and precipitation in Koh Phangan in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Koh Phangan in september.
The climate of Koh Phangan in september is tolerable
The weather in september in Koh Phangan is wet (with 10.5in of rainfall over 16 days). It should be noted a worsening from the previous month since in august there is an average of 8.3in of precipitation over 14 days.
The climate is very warm in this location the month of september. Temperatures are up to 85°F. The minimum is 83°F. Thus, the mean temperature average in september in Koh Phangan is 85°F. Note that these seasonal averages are in contrast with those observed in Koh Phangan in the month of september with a maximum record of 88°F in 2013 and a minimum record of 70°F in 2020. You can expect to have 86°F or more for all the month.
On this month of september, day length in Koh Phangan is generally 12:10. Sunrise is at 06:10 and sunset is at 18:20.
With a correct climate, this month is okay (but not good) to go in Koh Phangan.
September: another location in Thailand?
If you want to go to Thailand in september, there are destinations with better weather than Koh Phangan:
In september, Chiang Mai, Doi Inthanon, Chawang, Chumphon, Lamphun and Nakhon Si Thammarat have good weather.
Seasonal average climate and temperature of Koh Phangan in september
Check below seasonal norms These statistics are generated from the weather statements of the last years of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 85°F | ||||
| Highest temperature | 85°F | ||||
| Lowest temperature | 83°F | ||||
| Highest record temperature | 88°F (2013) | ||||
| Lowest record temperature | 70°F (2020) | ||||
| Number of days at +86°F | 5 day(s) (17%) | ||||
| Number of days at +65°F | 30 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 85°F | ||||
| Lowest sea temperature | 83°F | ||||
| Highest sea temperature | 87°F | ||||
| Wind | |||||
| Wind speed | 22km/h | ||||
| Wind temperature | 83°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 10.5in | ||||
| Number of days with rainfall | 16 day(s) (52%) | ||||
| Record daily rainfall | 2.1in (2012) | ||||
| Other climate data | |||||
| Humidity | 78% | ||||
| Visibility | 9.15km | ||||
| Cloud cover | 45% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:10 | ||||
| Time of sunset | 18:20 | ||||
| Length of day | 12:10 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | tolerable | ||||
How was the weather last september?
Here is the day by day recorded weather in Koh Phangan in september 2024:
83°F to 85°F
81°F to 85°F
81°F to 83°F
83°F to 83°F
83°F to 86°F
83°F to 85°F
85°F to 85°F
83°F to 85°F
83°F to 86°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
81°F to 83°F
83°F to 83°F
83°F to 83°F
83°F to 83°F
83°F to 83°F
81°F to 83°F
83°F to 83°F
83°F to 85°F
83°F to 85°F
83°F to 86°F
83°F to 85°F
77°F to 81°F
83°F to 85°F
83°F to 83°F
81°F to 85°F
83°F to 85°F
83°F to 86°F
Map: other cities in Thailand in september
Cities near Koh Phangan:
| Koh Samui in september | tolerable weather |
| Koh Tao in september | tolerable weather |
| Surat Thani in september | tolerable weather |
| Chumphon in september | good weather |
| Nakhon Si Thammarat in september | good weather |
| Ranong in september | tolerable weather |
| Chawang in september | good weather |
| Khao Sok National Park in september | tolerable weather |
| Khao Lak national Park in september | tolerable weather |
| Krabi - Ao Nang in september | tolerable weather |
| Ton Sai beach (Ao Nang) in september | tolerable weather |
| Railay beach in september | tolerable weather |
Click over cities on the map for information about the weather in september.
Koh Phangan
perfect weather
good
tolerable
bad
very bad
Weather data for Koh Phangan in september:
Weather data for Koh Phangan for september are derived from an average of the weather forecast since 2009 in Koh Phangan. There is a margin of error and these forecasts are to be considered as general information only. The weather in Koh Phangan 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 Phangan.