September weather forecastDandong, China

September

Weather in September

As September takes charge, Dandong subtly transitions to Autumn. The temperatures witness a noticeable fall, making this month's weather more tolerable than the preceding summer months. The environment takes on a hue of yellows and reds as trees begin to shed. It is an excellent period for outdoor activities and sightseeing. Despite the downturn, September still retains summer heat with temperatures between 13.7°C (56.7°F) and 23.8°C (74.8°F).

Temperature

September signifies a gentle decline in Dandong's average high-temperature, easing from 27.8°C (82°F) in August to a still moderately hot 23.8°C (74.8°F). In Dandong, September's nights observe an average temperature dip to a refreshing 13.7°C (56.7°F).

Humidity

The average relative humidity in September is 78%.

Rainfall

In Dandong, during September, the rain falls for 7.9 days and regularly aggregates up to 105mm (4.13") of precipitation. In Dandong, during the entire year, the rain falls for 94.5 days and collects up to 926mm (36.46") of precipitation.

Daylight

In Dandong, the average length of the day in September is 12h and 28min.
On the first day of September, sunrise is at 05:10 and sunset at 18:14. On the last day of the month, sunrise is at 05:38 and sunset at 17:26 CST.

Sunshine

The average sunshine in September is 7.5h.

Updated: Jan 24, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

During September, Dandong experiences an average high-temperature of 23.8°C (74.8°F) and a low-temperature of 13.7°C (56.7°F). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 32°C (89.6°F).

In Dandong, China, the average relative humidity in September is 78%.

In Dandong, China, in September, during 7.9 rainfall days, 105mm (4.13") of precipitation is typically accumulated.

The average day length in September in Dandong is 12h and 28min.

In September, on the first day of the month, sunrise is at 05:10 and sunset at 18:14. On the last day of the month, in Dandong, China, sunrise is at 05:38 and sunset at 17:26 CST.

In September, the average sunshine duration in Dandong is 7.5h.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

27.8°C

23.8°C

16.9°C

Average low temperature

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average temperature in September
Dandong, China

Average high temperature in September: 23.8°C

The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is January (-2.3°C).

Average low temperature in September: 13.7°C

The month with the highest average low temperature is July (20.3°C).
The coldest month (with the lowest average low temperature) is January (-11.4°C).

Average humidity in September
Dandong, China

Average humidity in September: 78%

The month with the highest relative humidity is July (89%).
The month with the lowest relative humidity is February (53%).

Average rainfall in September
Dandong, China

Average rainfall in September: 104.6mm

The wettest month (with the highest rainfall) is July (251.6mm).
The driest month (with the least rainfall) is January (7.1mm).

Average rainfall days in September
Dandong, China

Average rainfall days in September: 7.9 days

The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is February (3.6 days).

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

Average daylight in September: 12h and 30min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).