Weather in December
Sea temperature
In Shizunai, Japan, in December, the average water temperature is 8.2°C (46.8°F).Note: It is life-risking to swim in 8.2°C (46.8°F). Briefly staying in 13°C (55.4°F) waters feels unsettling, and temperatures below 10°C (50°F) might result in cold shock and loss of breath control, hinging on personal endurance.
Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 06:40 and sunset at 15:59. On the last day of the month, sunrise is at 06:59 and sunset at 16:07 JST.
Frequently asked questions
What is the water temperature in December in Shizunai?
In Shizunai, in December, the average water temperature is 8.2°C (46.8°F). Swimming in 8.2°C (46.8°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.
What is the month with the shortest days in Shizunai?
December has the shortest days of the year, with an average of 9h and 6min of daylight.
What is the average length of the day in December in Shizunai?
The average day length in December in Shizunai is 9h and 9min.
When is the sunrise / sunset in December in Shizunai?
In December, on the first day of the month, sunrise is at 06:40 and sunset at 15:59. On the last day of the month, sunrise is at 06:59 and sunset at 16:07 JST.
Average sea temperature in December
Shizunai, Japan
- Average sea temperature in December: 8.2°C
The best month for swimming (with the highest average sea temperature) is August (20.4°C).
The coldest months (with the lowest average sea temperature) are February and March (2°C).
Average daylight in December
Shizunai, Japan
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
Shizunai, Japan
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