September weather forecastTonglu, China
September
Weather in September
The first month of the autumn, September, is still a warm month in Tonglu, China, with an average temperature varying between 26.5°C (79.7°F) and 18.5°C (65.3°F).Temperature
Onset of September comes with a temperature decline, the average high falling from a tropical 31.7°C (89.1°F) in August to a moderately hot 26.5°C (79.7°F). Tonglu's average low-temperature in September is measured at a refreshing 18.5°C (65.3°F).Humidity
In September, the average relative humidity is 85%.Rainfall
In Tonglu, in September, during 19.5 rainfall days, 70mm (2.76") of precipitation is typically accumulated. Throughout the year, there are 192.9 rainfall days, and 937mm (36.89") of precipitation is accumulated.Snowfall
In Tonglu, snow does not fall in May through November.Daylight
In September, the average length of the day in Tonglu is 12h and 21min.On the first day of September, sunrise is at 05:38 and sunset at 18:23. On the last day of the month, sunrise is at 05:54 and sunset at 17:48 CST.
Sunshine
The average sunshine in September is 7.3h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 5 translates into these guidelines:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Tonglu, China
- Average high temperature in September: 26.5°C
The warmest months (with the highest average high temperature) are July and August (31.7°C).
The month with the lowest average high temperature is January (8.1°C).
- Average low temperature in September: 18.5°C
The month with the highest average low temperature is July (23°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).
Average pressure in September
Tonglu, China
- Average pressure in September: 1012.6mbar
The month with the highest atmospheric pressure is January (1027mbar).
The month with the lowest atmospheric pressure is July (1005.1mbar).
Average wind speed in September
Tonglu, China
- Average wind speed in September: 5.9km/h
The windiest month (with the highest average wind speed) is March (7.4km/h).
The calmest month (with the lowest average wind speed) is June (5.8km/h).
Average humidity in September
Tonglu, China
- Average humidity in September: 85%
The month with the highest relative humidity is June (86%).
The month with the lowest relative humidity is December (71%).
Average rainfall in September
Tonglu, China
- Average rainfall in September: 70mm
The wettest month (with the highest rainfall) is July (174mm).
The driest month (with the least rainfall) is October (31mm).
Average rainfall days in September
Tonglu, China
- Average rainfall days in September: 19.5 days
The months with the highest number of rainy days are July and August (23.8 days).
The month with the least rainy days is December (9.3 days).
Average snowfall in September
Tonglu, China
- Average snowfall in September: 0mm
The month with the highest snowfall is January (40mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Tonglu, China
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.1 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Tonglu, China
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 7h and 18min
The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in September
Tonglu, China
- Average sunshine days in September: 6.8 days
The month with the most sunshine days is December (19.3 days).
The month with the least sunshine days is August (5.4 days).
Average UV index in September
Tonglu, China
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Tonglu, China
- Average cloud cover in September: 56
The month with the most cloud cover is June (Cloud cover 58).
The month with the least cloud cover is December (Cloud cover 36).
Average visibility in September
Tonglu, China
- Average visibility in September: 7km
The months with the highest visibility are January, February, March, April, November and December (9km).
The months with the lowest visibility are June and September (7km).
