December
Weather in December
Sea temperature
In December, the average sea temperature in Porto do Son, Spain, is 14.8°C (58.6°F).Note: Swimming in 14.8°C (58.6°F) is deemed hazardous. Exposure to temperatures below 10°C (50°F) leads to immediate severe cold shock and hyperventilation.
Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year in Porto do Son, Spain.On the first day of December in Porto do Son, sunrise is at 08:47 and sunset at 18:03. On the last day of the month, sunrise is at 09:06 and sunset at 18:12 CET.
Updated: Jun 9, 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 Porto do Son, the average seawater temperature in December is 14.8°C (58.6°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?
The month with the shortest days is December, with an average of 9h and 6min of daylight.
What is the average length of the day in December?
The average day length in December is 9h and 6min.
When are sunrise and sunset in December in Porto do Son?
On the first day of December, sunrise is at 08:47 and sunset at 18:03. On the last day of the month, sunrise is at 09:06 and sunset at 18:12 CET.
Average sea temperature in December
Porto do Son, Spain
- Average sea temperature in December: 14.8°C
The best months for swimming (with the highest average sea temperature) are August and September (18.2°C).
The coldest month (with the lowest average sea temperature) is March (13.3°C).
Average daylight in December
Porto do Son, Spain
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
