ClimateForecastSeptemberOctober >>

Weather in September in Chiang Mai Province

Thinking about venturing to Chiang Mai Province this September and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What is the weather like in Chiang Mai Province in September?

Chiang Mai Province is a region in Thailand. September in Chiang Mai Province generally has very warm temperatures, with heavy precipitation.

Temperatures

The average maximum temperatures are very warm and range from 30°C in Ban Pa Pae to 33°C in Lamphun. Nighttime temperatures generally drop to 24°C in Lamphun and 22°C in Ban Pa Pae. The temperatures mentioned for both day and night are typical averages. However some days might get even hotter. It's best to stay prepared by wearing cloths suitable for the warmth.

Precipitation

In September, precipitation varies across different areas. From heavy rainfall in Chom Thong with an average of 214 mm to heavy rainfall in Mae On with 308 mm.

Average sunshine

Most cities enjoy a balanced amount of sunshine, with around 148 hours of sunlight anticipated in Chiang Mai. This ensures the days are neither too dim nor excessively sunny.

For a closer look at September's conditions in Chiang Mai Province, see the map below. For a more detailed look at Chiang Mai Province's yearly weather, check out our Chiang Mai Province climate page.

Where to go in Chiang Mai Province in September

Find more information for the most popular destinations in the Chiang Mai Province on the map below. Click on a destination dot for more detailes.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations

What is the weather like in September for the 5 most popular destinations in Chiang Mai Province?

Chiang Mai

In September Chiang Mai generally has very high temperatures with maximum daytime temperatures around 33°C, minimum nighttime temperatures around 24°C and heavy monthly rainfall. So on average the conditions are poor that month.

Chiang Mai
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
32°C 
24°C 
116 hours 
260 mm 
21 days 
poor 
33°C 
24°C 
148 hours 
249 mm 
18 days 
poor 
October   >> October
>>  
32°C 
22°C 
202 hours 
123 mm 
12 days 
Climate in Chiang Mai

Mae Rim

In September Mae Rim generally has very high temperatures with maximum daytime temperatures around 32°C, minimum nighttime temperatures around 23°C and heavy monthly rainfall. So on average the conditions are poor that month.

Mae Rim
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
32°C 
24°C 
116 hours 
305 mm 
21 days 
poor 
32°C 
23°C 
148 hours 
269 mm 
18 days 
poor 
October   >> October
>>  
32°C 
22°C 
202 hours 
130 mm 
12 days 
Climate in Mae Rim

Hang Dong

In September Hang Dong generally has very high temperatures with maximum daytime temperatures around 33°C, minimum nighttime temperatures around 24°C and heavy monthly rainfall. So on average the conditions are poor that month.

Hang Dong
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
32°C 
24°C 
116 hours 
275 mm 
21 days 
poor 
33°C 
24°C 
148 hours 
255 mm 
18 days 
poor 
October   >> October
>>  
32°C 
22°C 
202 hours 
128 mm 
12 days 
Climate in Hang Dong

Chiang Dao

In September Chiang Dao generally has very high temperatures with maximum daytime temperatures around 31°C, minimum nighttime temperatures around 22°C and heavy monthly rainfall. So on average the conditions are poor that month.

Chiang Dao
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
31°C 
23°C 
116 hours 
294 mm 
23 days 
poor 
31°C 
22°C 
148 hours 
240 mm 
19 days 
poor 
October   >> October
>>  
30°C 
21°C 
202 hours 
114 mm 
13 days 
Climate in Chiang Dao

San Sai

In September San Sai generally has very high temperatures with maximum daytime temperatures around 32°C, minimum nighttime temperatures around 24°C and heavy monthly rainfall. So on average the conditions are poor that month.

San Sai
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
32°C 
24°C 
116 hours 
283 mm 
20 days 
poor 
32°C 
24°C 
148 hours 
263 mm 
18 days 
poor 
October   >> October
>>  
32°C 
22°C 
202 hours 
129 mm 
12 days 
Climate in San Sai

Is your destination not in the list? Have a look at other destinations in Chiang Mai Province, in Thailand.

Is September the best time to visit Chiang Mai Province?

In our opinion, September may not be the ideal time to visit Chiang Mai Province due to the typically poor weather in Chiang Mai.

Generally speaking, the best visiting conditions can be found in January, November and December offering mostly perfect weather in Chiang Mai. On the other hand, the months of April, May, July, August and September tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Chiang Mai Province. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to Thailand? Get detailed historical weather averages for many cities in Thailand.

    Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.