Weather in December
Sea temperature
In December, the average sea temperature in Greater Napanee, Canada, is 5.4°C (41.7°F).Note: Staying in 5.4°C (41.7°F) waters for just a few moments at 13°C (55.4°F) can be harrowing, and below 10°C (50°F) poses breathing and cold shock risks, depending on individual tolerance.
Daylight
The month with the shortest days is December, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 7:23 am and sunset at 4:30 pm. On the last day of December, sunrise is at 7:43 am and sunset at 4:39 pm EST.
Updated: Jul 14, 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
What is the sea water temperature in December?
In Greater Napanee, in December, the average water temperature is 5.4°C (41.7°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.
What is the month with the shortest days?
With an average of 8h and 54min of daylight, December has the shortest days of the year.
How many hours of daylight does Greater Napanee have in December?
In December, the average day length is 8h and 56min.
When is the sunrise / sunset in December?
On the first day of December, sunrise is at 7:23 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 4:39 pm EST.
Average sea temperature in December
Greater Napanee, Canada
- Average sea temperature in December: 5.4°C
The best month for swimming (with the highest average sea temperature) is August (22.3°C).
The coldest month (with the lowest average sea temperature) is March (1.9°C).
Average daylight in December
Greater Napanee, Canada
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
Greater Napanee, Canada
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