Chiang Mai in september: average Weather, Temperature and Climate
Weather in Chiang Mai in september 2025
The weather in Chiang Mai in the month of september comes from statistical datas on the last years. You can view the weather statistics the entire month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
good weather UV index: 7
Weather at 6am
76°F
Partly Cloudy
35% of time
25%
18%
14%
Weather at 12pm
90°F
Partly Cloudy
39% of time
39%
18%
4%
Weather at 6pm
77°F
Moderate rain at times
32% of time
29%
20%
10%
Weather at 3am
72°F
34%
21%
21%
16%
Evolution of daily average temperature and precipitation in Chiang Mai in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Chiang Mai in september.
The climate of Chiang Mai in september is good
The climate in september in Chiang Mai is wet (with 5.2in of precipitation over 8 days). This is better than the previous month since in august it receives an average of 7.5in of precipitation over 11 days.
The climate is very hot there this month. Temperatures are up to 92°F. The minimum is 76°F. Thus, the mean temperature average on this month of september in Chiang Mai is 83°F. These temperatures are far removed from those records observed in Chiang Mai in the month of september with a maximum record of 99°F in 2010 and a minimum record of 70°F in 2009. You You can hope to have about 26 days with temperatures above 86°F, or 87 of the month.
On average, in Chiang Mai, the days of september last 12:14. Sunrise is at 06:12 and sunset is at 18:26.
With a correct weather, the month of september is okay (but not good) to go in that area.
Seasonal average climate and temperature of Chiang Mai in september
Check below seasonal norms These datas are generated from the weather statements of the last years of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 83°F | ||||
| Highest temperature | 92°F | ||||
| Lowest temperature | 76°F | ||||
| Highest record temperature | 99°F (2010) | ||||
| Lowest record temperature | 70°F (2009) | ||||
| Number of days at +86°F | 26 day(s) (87%) | ||||
| Number of days at +65°F | 30 day(s) (100%) | ||||
| Wind | |||||
| Wind speed | 7km/h | ||||
| Wind temperature | 76°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 5.2in | ||||
| Number of days with rainfall | 8 day(s) (27%) | ||||
| Record daily rainfall | 2.9in (2009) | ||||
| Other climate data | |||||
| Humidity | 91% | ||||
| Visibility | 8.43km | ||||
| Cloud cover | 43% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:12 | ||||
| Time of sunset | 18:26 | ||||
| Length of day | 12:14 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last september?
Here is the day by day recorded weather in Chiang Mai in september 2024:
72°F to 88°F
74°F to 90°F
74°F to 90°F
72°F to 90°F
72°F to 90°F
72°F to 86°F
72°F to 92°F
74°F to 85°F
72°F to 76°F
72°F to 76°F
70°F to 77°F
70°F to 86°F
72°F to 88°F
72°F to 88°F
72°F to 88°F
70°F to 88°F
72°F to 79°F
74°F to 83°F
72°F to 90°F
72°F to 85°F
72°F to 79°F
72°F to 85°F
72°F to 76°F
72°F to 74°F
74°F to 81°F
72°F to 83°F
70°F to 88°F
72°F to 90°F
72°F to 90°F
74°F to 86°F
Map: other cities in Thailand in september
Cities near Chiang Mai:
| Lamphun in september | good weather |
| Doi Inthanon in september | good weather |
| Lampang in september | tolerable weather |
| Pai in september | tolerable weather |
| Phayao Lake in september | bad weather |
| Phayao in september | bad weather |
| Mae Hong Son in september | tolerable weather |
| Doi Pha Hom Pok National Park in september | tolerable weather |
| Pang Ung in september | tolerable weather |
| Phrae in september | tolerable weather |
| Pong in september | bad weather |
| Chiang Rai in september | tolerable weather |
Click over cities on the map for information about the weather in september.
Chiang Mai
perfect weather
good
tolerable
bad
very bad
Weather data for Chiang Mai in september:
Weather data for Chiang Mai for september are derived from an average of the weather forecast since 2009 in Chiang Mai. There is a margin of error and these forecasts are to be considered as general information only. The weather in Chiang Mai 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 Chiang Mai.