Weather in September
The waning summer heat in September quietly prepares Keelung City for the fall. A noted decrease in sea temperature to 26.2°C (79.2°F) becomes apparent this month. Following August, shorter daylight hours hint at the upcoming fall season. The moderate weather, combined with less rainfall, makes this month ideal for outdoor ventures. People begin to embrace the subtle cold, bidding goodbye to the warmer days.
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.
On the first day of the month, sunrise is at 05:33 and sunset at 18:12. On the last day of September, sunrise is at 05:44 and sunset at 17:41 CST.
[Resources]Sea temperature
In Keelung City, the average seawater temperature in September is 27.7°C (81.9°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 18min.On the first day of the month, sunrise is at 05:33 and sunset at 18:12. On the last day of September, sunrise is at 05:44 and sunset at 17:41 CST.
Frequently asked questions
How warm is the water in September in Keelung City?
In Keelung City, Taiwan, the average seawater temperature in September is 27.7°C (81.9°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.
What is the average length of the day in September in Keelung City?
In Keelung City, the average day length in September is 12h and 18min.
When are sunrise and sunset in September in Keelung City?
On the first day of September in Keelung City, Taiwan, sunrise is at 05:33 and sunset at 18:12. On the last day of the month, sunrise is at 05:44 and sunset at 17:41 CST.
Average sea temperature in September
Keelung City, Taiwan
- Average sea temperature in September: 27.7°C
The best month for swimming (with the highest average sea temperature) is August (28.6°C).
The coldest month (with the lowest average sea temperature) is February (20.3°C).
Average daylight in September
Keelung City, Taiwan
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).
Keelung City, Taiwan
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