December weather forecastNumazu, Japan
December
Weather in December
Sea temperature
In Numazu, Japan, the average seawater temperature in December is 17.8°C (64°F).Note: Most people find it challenging to enjoy swimming in water that is 17.8°C (64°F). As water temperature falls below 21°C (69.8°F), controlling breathing grows increasingly difficult.
Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 06:34 and sunset at 16:32. On the last day of the month, sunrise is at 06:52 and sunset at 16:42 JST.
Updated: Jul 25, 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
In Numazu, in December, the average water temperature is 17.8°C (64°F). For most, swimming in 17.8°C (64°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).
December has the shortest days of the year, with an average of 9h and 48min of daylight.
In December, the average day length is 9h and 50min.
In December, on the first day of the month, sunrise is at 06:34 and sunset at 16:32. On the last day of the month, in Numazu, sunrise is at 06:52 and sunset at 16:42 JST.
Average sea temperature in December
Numazu, Japan
- Average sea temperature in December: 17.8°C
The best month for swimming (with the highest average sea temperature) is August (26.3°C).
The coldest month (with the lowest average sea temperature) is February (14.9°C).
Average daylight in December
Numazu, Japan
- Average daylight in December: 9h and 48min
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 48min).
