Dali

Yunnan Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Yunnan, China in September.

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

What to Expect in Yunnan in September

Yunnan, China is a region in China. Yunnan, China has a wide variety of climate types. During September, you can expect temperatures that range from mild to very warm and precipitation levels ranging from high to heavy.

Temperatures

The average maximum daytime temperatures vary from mild in Deqen at 15°C (59°F) to very warm in Jinghong at 30°C (86°F). Nighttime temperatures generally drop to 21°C (70°F) in Jinghong and 7°C (45°F) in Deqen.

To learn more about the conditions in specific areas of Yunnan, China, check out the map below.

Precipitation

In September, precipitation varies across different areas. From high rainfall in Yuanyang with an average of 134 mm (5.3 in) to heavy rainfall in Lijiang with 256 mm (10 in).

Average sunshine

Sunshine amounts are decent in most places. Lijiang gets approximately 140 hours of sunlight in September, offering a reasonable amount of both bright and cloudy periods. Curious about sunnier destinations? Our weather planner makes it easy to find places worldwide with pleasant weather.

Explore Yunnan by month

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

Best Places to Visit in Yunnan in September

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

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 Yunnan

What is the weather like in September for some of the most popular destinations in Yunnan, China?

Temperature range in Yunnan (September)

Precipitation variation in Yunnan (September)

Lijiang

In September Lijiang generally has pleasant temperatures with maximum daytime temperatures around 21°C (70°F), minimum nighttime temperatures around 13°C (55°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

August
September
October
Max temperature
22°C (72°F)
21°C (70°F)
19°C (66°F)
Min temperature
14°C (57°F)
13°C (55°F)
9°C (48°F)
Monthly sun hours
155 hours
140 hours
195 hours
Monthly rainfall
284 mm (11 in)
256 mm (10 in)
117 mm (4.6 in)
Monthly rainy days
24 days
20 days
12 days
Weather conditions

Dali

In September Dali generally has high temperatures with maximum daytime temperatures around 24°C (75°F), minimum nighttime temperatures around 16°C (61°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

August
September
October
Max temperature
25°C (77°F)
24°C (75°F)
22°C (72°F)
Min temperature
17°C (63°F)
16°C (61°F)
13°C (55°F)
Monthly rainfall
271 mm (11 in)
200 mm (7.9 in)
106 mm (4.2 in)
Monthly rainy days
24 days
20 days
14 days
Weather conditions

Kunming

In September Kunming generally has high temperatures with maximum daytime temperatures around 24°C (75°F), minimum nighttime temperatures around 16°C (61°F) and heavy monthly rainfall. So on average the conditions are pleasant that month.

August
September
October
Max temperature
25°C (77°F)
24°C (75°F)
21°C (70°F)
Min temperature
17°C (63°F)
16°C (61°F)
13°C (55°F)
Monthly sun hours
144 hours
123 hours
143 hours
Monthly rainfall
241 mm (9.5 in)
177 mm (7 in)
119 mm (4.7 in)
Monthly rainy days
22 days
17 days
15 days
Weather conditions

Shangri-La

In September Shangri-La generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 8°C (46°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

August
September
October
Max temperature
18°C (64°F)
17°C (63°F)
14°C (57°F)
Min temperature
10°C (50°F)
8°C (46°F)
3°C (37°F)
Monthly rainfall
238 mm (9.4 in)
158 mm (6.2 in)
74 mm (2.9 in)
Monthly rainy days
24 days
20 days
11 days
Weather conditions

Jinghong

In September Jinghong generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 21°C (70°F) and heavy monthly rainfall. So on average the conditions are poor that month.

August
September
October
Max temperature
30°C (86°F)
30°C (86°F)
29°C (84°F)
Min temperature
22°C (72°F)
21°C (70°F)
19°C (66°F)
Monthly rainfall
321 mm (13 in)
204 mm (8 in)
133 mm (5.2 in)
Monthly rainy days
25 days
18 days
13 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Yunnan, in China.

In our records: China September extremes

Notable September records observed across cities in China in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • From our sources, the wettest September day in China brought 362 mm (14 in) in Guangzhou on September 6, 1992.

Popular cities in September

Day & night temperatures, rainfall and average weather in Yunnan in September.

City Weather Day temp Night temp Rainfall
Lijiang 21°C (70°F) 13°C (55°F) 256 mm (10 in)
Dali 24°C (75°F) 16°C (61°F) 200 mm (7.9 in)
Kunming 24°C (75°F) 16°C (61°F) 177 mm (7 in)
Shangri-La 17°C (63°F) 8°C (46°F) 158 mm (6.2 in)
Jinghong 30°C (86°F) 21°C (70°F) 204 mm (8 in)
Xishuangbanna 30°C (86°F) 21°C (70°F) 205 mm (8.1 in)

Yunnan weather in September: frequently asked questions

What is the weather like in Yunnan, China in September?

In September, Yunnan, China generally has unpleasant weather conditions. Lijiang sees daytime temperatures near 21°C (70°F), with nights cooling to roughly 13°C (55°F).

What is the average temperature in Yunnan, China in September?

Daytime temperatures in Lijiang peak at roughly 21°C (70°F) in September, dropping to about 13°C (55°F) overnight.

Does Yunnan, China get a lot of rain in September?

Rainfall in Yunnan, China peaks during September. Lijiang averages roughly 256 mm (10 in), so frequent and sometimes heavy showers are the norm.

Is September a Good Time to Visit Yunnan, China?

Given the typically unpleasant weather conditions in Lijiang, September may not be the ideal time to visit Yunnan, China.

On average, the best time to visit Yunnan, China is in April with generally perfect weather in Lijiang. The weather in July and August, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in Yunnan.

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

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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