December
Weather in December
Sea temperature
In Aioi, Japan, in December, the average water temperature is 17.5°C (63.5°F).Note: For most individuals, swimming in 17.5°C (63.5°F) is not enjoyable. As the water temperature decreases from 21°C (69.8°F) to 15°C (59°F), breathing control becomes increasingly difficult.
Daylight
The month with the shortest days in Aioi is December, with an average of 9h and 54min of daylight.On the first day of December in Aioi, sunrise is at 06:51 and sunset at 16:51. On the last day of the month, sunrise is at 07:09 and sunset at 17:01 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 cold is the water in December in Aioi?
In Aioi, Japan, in December, the average water temperature is 17.5°C (63.5°F). For most, swimming in 17.5°C (63.5°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).
What is the month with the shortest days in Aioi?
With an average of 9h and 54min of daylight, December has the shortest days of the year.
How many hours of daylight does Aioi have in December?
In Aioi, Japan, the average day length in December is 9h and 52min.
What time are sunrise and sunset in December in Aioi?
In December, on the first day of the month, sunrise is at 06:51 and sunset at 16:51. On the last day of the month, in Aioi, Japan, sunrise is at 07:09 and sunset at 17:01 JST.
Average sea temperature in December
Aioi, Japan
- Average sea temperature in December: 17.5°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 December
Aioi, Japan
- Average daylight in December: 9h and 5min
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).
