Weather in December
Embracing winter in full spectrum, December in Harpswell, Maine, reflects the cold wave across the region, with the sea temperatures dropping to an average of 45.4°F (7.4°C). The cooling divergence from November brings a predominantly chilly weather scenario, reinstating the winter wonderland appeal seen at the beginning of the year. The arrival of December enhances the winter mood, creating imagery of overcast skies, snow-laden landscapes, and shimmering icicles. Preparing for the continuation of the cold wave, December stands as the threshold to January, full circle to another year of climatic diversity in Harpswell, Maine.
Note: Caution: 45.3°F (7.4°C) temperatures below 50°F (10°C) during swimming can result in intense cold shock and quickened breathing.
On the first day of December, sunrise is at 6:54 am and sunset at 4:03 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:12 pm EST.
Ocean temperature
In Harpswell, the average seawater temperature in December is 45.3°F (7.4°C).Note: Caution: 45.3°F (7.4°C) temperatures below 50°F (10°C) during swimming can result in intense cold shock and quickened breathing.
Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:54 am and sunset at 4:03 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:12 pm EST.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is the water in December?
In Harpswell, the average seawater temperature in December is 45.3°F (7.4°C). At temperatures below 50°F (10°C), 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 55.4°F (13°C) is not comfortable.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 0min of daylight.
What is the average length of the day in December?
The average day length in December is 8h and 59min.
When is the sunrise / sunset in December?
On the first day of December, sunrise is at 6:54 am and sunset at 4:03 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:12 pm EST.
Average sea temperature in December
Harpswell, ME
- Average sea temperature in December: 45.4°F
The best month for swimming (with the highest average sea temperature) is August (62.2°F).
The coldest month (with the lowest average sea temperature) is March (37.9°F).
Average daylight in December
Harpswell, ME
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
Harpswell, Maine, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location