Chiang Rai

Chiang Rai Province Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Chiang Rai Province, Thailand in September.

Planning a getaway to Chiang Rai Province, Thailand this September and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What to Expect in Chiang Rai Province in September

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

Temperatures

You can expect very warm maximum daytime temperatures of around 32°C (90°F) and nighttime temperatures around 24°C (75°F) in Chiang Rai. 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.

For specific regional insights in Chiang Rai Province, Thailand, refer to the map provided below.

Precipitation

In September, precipitation varies across different areas. From heavy rainfall in Ban Mae Khachan (1) with an average of 254 mm (10 in) to heavy rainfall in Thoeng with 313 mm (12 in).

Average sunshine

Sunshine levels are moderate in most locations. Chiang Rai typically sees 145 hours of sunlight, creating comfortable conditions that aren't too bright or too dim. Looking for something sunnier? Our weather planner helps you discover destinations with more reliable sunshine.

Explore Chiang Rai Province by month

Pick a month to see the average temperature, rainfall and sunshine in Chiang Rai Province — and find the best time to visit. (based on Chiang Rai)

Best Places to Visit in Chiang Rai Province in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Chiang Rai Province.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Chiang Rai Province

What is the weather like in September for some of the most popular destinations in Chiang Rai Province, Thailand?

Temperature range in Chiang Rai Province (September)

Precipitation variation in Chiang Rai Province (September)

Chiang Rai

In September Chiang Rai generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 24°C (75°F) and heavy monthly rainfall. So on average the conditions are poor that month.

August
September
October
Max temperature
32°C (90°F)
32°C (90°F)
32°C (90°F)
Min temperature
24°C (75°F)
24°C (75°F)
22°C (72°F)
Monthly sun hours
117 hours
145 hours
199 hours
Monthly rainfall
366 mm (14 in)
290 mm (11 in)
133 mm (5.2 in)
Monthly rainy days
23 days
18 days
12 days
Weather conditions

Mae Sai

In September Mae Sai generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 23°C (73°F) and heavy monthly rainfall. So on average the conditions are poor that month.

August
September
October
Max temperature
32°C (90°F)
32°C (90°F)
31°C (88°F)
Min temperature
24°C (75°F)
23°C (73°F)
21°C (70°F)
Monthly sun hours
117 hours
145 hours
199 hours
Monthly rainfall
427 mm (17 in)
298 mm (12 in)
142 mm (5.6 in)
Monthly rainy days
24 days
18 days
12 days
Weather conditions

Chiang Saen

In September Chiang Saen generally has very high temperatures with maximum daytime temperatures around 33°C (91°F), minimum nighttime temperatures around 24°C (75°F) and heavy monthly rainfall. So on average the conditions are poor that month.

August
September
October
Max temperature
32°C (90°F)
33°C (91°F)
32°C (90°F)
Min temperature
24°C (75°F)
24°C (75°F)
22°C (72°F)
Monthly sun hours
117 hours
145 hours
199 hours
Monthly rainfall
397 mm (16 in)
295 mm (12 in)
131 mm (5.2 in)
Monthly rainy days
24 days
18 days
12 days
Weather conditions

Golden Triangle

In September Golden Triangle generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 24°C (75°F) and heavy monthly rainfall. So on average the conditions are poor that month.

August
September
October
Max temperature
32°C (90°F)
32°C (90°F)
32°C (90°F)
Min temperature
24°C (75°F)
24°C (75°F)
22°C (72°F)
Monthly sun hours
117 hours
145 hours
199 hours
Monthly rainfall
412 mm (16 in)
300 mm (12 in)
135 mm (5.3 in)
Monthly rainy days
24 days
18 days
12 days
Weather conditions

Mae Chan

In September Mae Chan generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 24°C (75°F) and heavy monthly rainfall. So on average the conditions are poor that month.

August
September
October
Max temperature
32°C (90°F)
32°C (90°F)
31°C (88°F)
Min temperature
24°C (75°F)
24°C (75°F)
22°C (72°F)
Monthly sun hours
117 hours
145 hours
199 hours
Monthly rainfall
396 mm (16 in)
300 mm (12 in)
138 mm (5.4 in)
Monthly rainy days
24 days
18 days
12 days
Weather conditions

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

Popular cities in September

Day & night temperatures, rainfall and average weather in Chiang Rai Province in September.

City Weather Day temp Night temp Rainfall
Chiang Rai 32°C (90°F) 24°C (75°F) 290 mm (11 in)
Mae Sai 32°C (90°F) 23°C (73°F) 298 mm (12 in)
Chiang Saen 33°C (91°F) 24°C (75°F) 295 mm (12 in)
Golden Triangle 32°C (90°F) 24°C (75°F) 300 mm (12 in)
Mae Chan 32°C (90°F) 24°C (75°F) 300 mm (12 in)
Mae Salong 31°C (88°F) 22°C (72°F) 294 mm (12 in)

Chiang Rai Province weather in September: frequently asked questions

What is the weather like in Chiang Rai Province, Thailand in September?

Chiang Rai Province, Thailand typically experiences poor weather in September, part of the season. Daytime highs in Chiang Rai average around 32°C (90°F), and temperatures drop to about 24°C (75°F) at night.

What is the average temperature in Chiang Rai Province, Thailand in September?

Daytime temperatures in Chiang Rai peak at roughly 32°C (90°F) in September, dropping to about 24°C (75°F) overnight.

Does Chiang Rai Province, Thailand get a lot of rain in September?

Rainfall in Chiang Rai Province, Thailand peaks during September. Chiang Rai averages roughly 290 mm (11 in), so frequent and sometimes heavy showers are the norm.

Is September a Good Time to Visit Chiang Rai Province, Thailand?

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

Generally speaking, December provides perfect weather in Chiang Rai. On the other hand, the months of March, April, May, June, 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 Rai Province.

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.

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