Mae Sai weather in September (Chiang Rai Province, Thailand)

What weather conditions can you expect in Mae Sai this September? Check out this detailed guide to the month’s weather conditions.

Temperatures

The typical weather for September in Mae Sai includes very high temperatures and heavy rainfall. Daytime temperatures hover around 32°C, while nights can cool down to about 23°C. These temperatures represent the average, but hotter days can occur. Be prepared with light clothing and stay hydrated to manage the heat.

Precipitation

Mae Sai in September falls under the rainy season with heavy rainfall, averaging around 298 mm for the month. When we look at the climate data from the last 30 years, you can expect around 18 days of rain.

Average sunshine

The area enjoys a moderate level of sunlight, with around 145 hours. It's a good balance between sunny and cloudy days.

If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit Mae Sai. January, February, November and December typically offer the most agreeable circumstances. On the other hand, April, May, June, July, August and September tend to be characterized by conditions that may not be as optimal.

For an in-depth look at the yearly conditions, visit our specialized Mae Sai climate page with graphs.

 

Mae Sai, monthly averages in September

Min Temperature 23°C  

Max Temperature 32°C  

Chance of Rain 59%  

Precipitation 298 mm  

Rainy days 18 days  

Humidity 83% *  

Sunshine 145 hours *  

Percentage Sunshine *  

Data from: Chiang Rai, Thailand (60 KM, 37 Miles).

Where to go in Thailand in September

Find out more about the weather in Thailand and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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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).

So, what should you wear in this month?

It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

7/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Mae Sai.

Our site offers climate and forecast data for every country in the world. Are you going to Thailand? On this website you can find 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.