September
Weather in September
The ideal sea water temperature of 26.1°C (79°F) makes September in Aioi, Japan, the best time for swimming and other water activities.
Note: For activities in the water such as swimming or diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are considered optimal for prolonged enjoyment without discomfort.
On the first day of September in Aioi, Japan, sunrise is at 05:35 and sunset at 18:29. On the last day of the month, sunrise is at 05:56 and sunset at 17:47 JST.
Sea temperature
In Aioi, the average seawater temperature in September is 26.1°C (79°F).Note: For activities in the water such as swimming or diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are considered optimal for prolonged enjoyment without discomfort.
Daylight
The average length of the day in September in Aioi is 12h and 24min.On the first day of September in Aioi, Japan, sunrise is at 05:35 and sunset at 18:29. On the last day of the month, sunrise is at 05:56 and sunset at 17:47 JST.
Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How warm is the water in September in Aioi?
In Aioi, the average seawater temperature in September is 26.1°C (79°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 Aioi?
In September, the average day length in Aioi is 12h and 24min.
When are sunrise and sunset in September in Aioi?
On the first day of September in Aioi, sunrise is at 05:35 and sunset at 18:29. On the last day of the month, sunrise is at 05:56 and sunset at 17:47 JST.
Average sea temperature in September
Aioi, Japan
- Average sea temperature in September: 26.1°C
The best month for swimming (with the highest average sea temperature) is August (27.4°C).
The coldest months (with the lowest average sea temperature) are February and March (13.8°C).
Average daylight in September
Aioi, Japan
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
