September weather forecast
Kunming, China

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Weather in September

September marks the departure of monsoon season in Kunming, with a decrease in humidity and rainfall, creating a pleasant ambiance. The temperatures, ranging from 14.6°C (58.3°F) at night to 22.7°C (72.9°F) during the day, represent a gradual transition towards autumn. Hues of orange and yellow begin to replace the verdant shades, symbolizing the changing season. With a more moderate climate, outdoor recreational activities start to regain popularity.

Temperature

As Kunming, China, transitions from August to September, the average high-temperatures adjust to a pleasant 22.7°C (72.9°F), nearly the same as the previous 24.1°C (75.4°F). Kunming experiences an average temperature drop to a mild 14.6°C (58.3°F) during September nights.

Humidity

The average relative humidity in September in Kunming, China, is 82%.

Rainfall

In Kunming, China, in September, it is raining for 15.8 days, with typically 119mm (4.69") of accumulated precipitation. In Kunming, during the entire year, the rain falls for 130.4 days and collects up to 1011mm (39.8") of precipitation.

Daylight

In September, the average length of the day in Kunming is 12h and 18min.
On the first day of the month, sunrise is at 06:49 and sunset at 19:27. On the last day of September, sunrise is at 07:00 and sunset at 18:56 CST.

Sunshine

In Kunming, the average sunshine in September is 4.1h.

UV index

The months with the highest UV index in Kunming are April through September, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an excessive health risk from unsafe exposure to UV radiation for the ordinary person.
Note: An average maximum UV index of 12 in September leads to these recommendations:
Utilize all necessary safety measures, unprotected skin could suffer burns instantly. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Updated: Jan 24, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What are September temperatures in Kunming?

In Kunming, 22.7°C (72.9°F) is the average high-temperature and 14.6°C (58.3°F) is the average low-temperature during September.

What is the average humidity in September in Kunming?

In September, the average relative humidity in Kunming is 82%.

How much does it rain in Kunming in September?

In September, in Kunming, China, the rain falls for 15.8 days. Throughout September, 119mm (4.69") of precipitation is accumulated.

How many hours of daylight does Kunming have in September?

The average day length in September in Kunming is 12h and 18min.

When is the sunrise / sunset in September in Kunming?

On the first day of September in Kunming, sunrise is at 06:49 and sunset at 19:27. On the last day of the month, sunrise is at 07:00 and sunset at 18:56 CST.

How long on average sun shines in September in Kunming?

In September, the average sunshine duration in Kunming is 4.1h.

What are the months with the highest UV index in Kunming?

April through September, with an average maximum UV index of 12, are months with the highest UV index in Kunming, China.

What is the UV index reading in September in Kunming?

In September, the average daily maximum UV index in Kunming, China, is 12. A UV Index of 11, and more, symbolizes an extreme health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in September
Kunming, China

Average temperature in September - Kunming, China
  • Average high temperature in September: 22.7°C

The warmest month (with the highest average high temperature) is May (24.4°C).
The month with the lowest average high temperature is December (15.1°C).

  • Average low temperature in September: 14.6°C

The month with the highest average low temperature is July (16.9°C).
The coldest month (with the lowest average low temperature) is January (2.3°C).

Average humidity in September
Kunming, China

Average humidity in September - Kunming, China
  • Average humidity in September: 82%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is March (58%).

Average rainfall in September
Kunming, China

Average rainfall in September - Kunming, China
  • Average rainfall in September: 119.2mm

The wettest month (with the highest rainfall) is August (204mm).
The driest month (with the least rainfall) is December (11.3mm).

Average rainfall days in September
Kunming, China

Average rainfall days in September - Kunming, China
  • Average rainfall days in September: 15.8 days

The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is December (3.8 days).

Average daylight in September /
Average sunshine in September
Kunming, China

Average daylight in September / Average sunshine in September - Kunming, China
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).

  • Average sunshine in September: 4h and 1min

The months with the most sunshine are March and April (Average sunshine: 8h and 12min).
The month with the least sunshine is July (Average sunshine: 4h and 0min).

Average UV index in September
Kunming, China

Average UV index in September - Kunming, China
  • Average UV index in September: 12

The months with the highest UV index are April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 6).

Kunming, China

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