Average weather in September in Chiang Rai (Chiang Rai Province), Thailand

The average minimum temperature (usually the minimum temperature is noted during the night) in Chiang Rai in September is 22.9°C (73.22°F). September falls in the rainy season with an average precipitation of 285mm (11.2in). It rains on average a total of 17 days. The average maximum daytime temperature lies around 31.2°C (88.16°F). The sun will occasionally show itself with 145 hours of sunshine during the whole month.


So what to wear in September? Visitors traveling to Chiang Rai should plan on bringing a totally waterproof rain jacket since it will often be raining. Also bring your shorts or a skirt because it can be very warm or even hot.

No idea where to travel to this year? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.

For other monthly average weather and what to do in September look at the numbers below.

Where to stay in Chiang Rai

Where to go in Thailand in September

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

Weather conditions Weather

Temperatures

Precipitation

Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20-29ºC / 68-84ºF and not too much precipitation (less than 90mm / 3.5inch a month).

Weather Forecasts for Chiang Rai (Chiang Rai Province)

Show in Fahrenheit

MON Aug 15

31°C | 22°C

Heavy rain

TUE Aug 16

29°C | 23°C

Heavy rain

WED Aug 17

31°C | 22°C

Moderate rain

5-Day Forecast 10-Day Forecast