Weather in September
The perfect water temperature of 26.3°C (79.3°F) makes
September a great period for swimming and other water activities in
Saga Prefecture,
Japan.
Sea temperature
In Saga Prefecture, the average seawater temperature in September is 26.3°C (79.3°F).
Note: Water temperatures ranging between 25°C (77°F) and 29°C (84.2°F) are regarded as very warm, making swimming, diving, and similar water activities pleasurable for extended periods.
Daylight
The average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 05:53 and sunset at 18:44. On the last day of the month, sunrise is at 06:12 and sunset at 18:05 JST.
[Resources]