September weather forecastHumenzhen, China

September

Weather in September

The ideal sea water temperature of 28°C (82.4°F) makes September in Humenzhen, China, the best time for swimming and other water activities.

Sea temperature

In Humenzhen, China, the average seawater temperature in September is 28°C (82.4°F).
Note: Water temperatures from 25°C (77°F) to 29°C (84.2°F) make swimming, diving, and similar activities highly pleasurable and enjoyable for long periods without discomfort.

Daylight

The average length of the day in September is 12h and 17min.
On the first day of the month, sunrise is at 06:07 and sunset at 18:42. On the last day of September, sunrise is at 06:16 and sunset at 18:13 CST.

Frequently asked questions

In Humenzhen, the average seawater temperature in September is 28°C (82.4°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

In September, the average day length is 12h and 17min.

On the first day of September, sunrise is at 06:07 and sunset at 18:42. On the last day of the month, sunrise is at 06:16 and sunset at 18:13 CST.

Average sea temperature in September
Humenzhen, China

  • Average sea temperature in September: 28°C

The best month for swimming (with the highest average sea temperature) is July (28.8°C).
The coldest month (with the lowest average sea temperature) is February (18.6°C).

Average daylight in September
Humenzhen, China

  • Average daylight in September: 12h and 18min

The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 48min).