Weather in December
Sea temperature
In Greater Napanee, Canada, the average seawater temperature in December is 5.4°C (41.7°F).Note: Immersing oneself in 5.4°C (41.7°F) at sub-10°C (14°F) temperatures is a recipe for harsh cold shock and quickened breathing unless adequately equipped.
Daylight
The month with the shortest days in Greater Napanee is December, with an average of 8h and 54min of daylight.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.
Frequently asked questions
How cold is the water in December in Greater Napanee?
In December, the average sea temperature in Greater Napanee 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 in Greater Napanee?
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 in Greater Napanee, Canada, is 8h and 56min.
When is the sunrise / sunset in December in Greater Napanee?
In December, on the first day of the month, sunrise is at 7:23 am and sunset at 4:30 pm. On the last day of the month, in Greater Napanee, Canada, 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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