Weather in September
Sea temperature
In September, the average sea temperature in Dachangshan Island, China, is 21.8°C (71.2°F).Note: The enjoyment of swimming decreases for most when the surface water temperature is 21.8°C (71.2°F). Breathing control becomes increasingly challenging as temperatures descend below 21°C (69.8°F).
Daylight
In Dachangshan Island, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 05:18 and sunset at 18:20. On the last day of September, sunrise is at 05:44 and sunset at 17:34 CST.
Frequently asked questions
What is the sea temperature in September in Dachangshan Island?
In September, the average sea temperature in Dachangshan Island, China, is 21.8°C (71.2°F). For swimming, a surface water temperature of 21.8°C (71.2°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).
What is the average length of the day in September in Dachangshan Island?
The average day length in September in Dachangshan Island is 12h and 28min.
When are sunrise and sunset in September in Dachangshan Island?
In September, on the first day of the month, sunrise is at 05:18 and sunset at 18:20. On the last day of the month, sunrise is at 05:44 and sunset at 17:34 CST.
Average sea temperature in September
Dachangshan Island, China
- Average sea temperature in September: 21.8°C
The best month for swimming (with the highest average sea temperature) is August (24.3°C).
The coldest month (with the lowest average sea temperature) is February (2.2°C).
Average daylight in September
Dachangshan Island, China
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
Dachangshan Island, China
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