December
Weather in December
December, the final month of the year arrives in Piran, Slovenia bringing significantly colder weather. The sea temperature drops to the average of 13.2°C (55.8°F), marking the onset of winter. With the shortest daylight hours of the year, long chilly nights start to unfold. The weather shift from temperate November to frosty December is quite significant. The charm of December lies in the spellbinding winter landscapes against the shorter, darker days.
Note: One needs to be cautious in 13.2°C (55.8°F) waters. 13°C (55.4°F) is already forbidding, but sub-10°C (14°F) can seriously disrupt your breathing and lead to a frigid shock, considering one's well-being.
On the first day of the month, sunrise is at 07:25 and sunset at 16:23. On the last day of December, in Piran, sunrise is at 07:45 and sunset at 16:32 CET.
Sea temperature
In December, the average sea temperature is 13.2°C (55.8°F).Note: One needs to be cautious in 13.2°C (55.8°F) waters. 13°C (55.4°F) is already forbidding, but sub-10°C (14°F) can seriously disrupt your breathing and lead to a frigid shock, considering one's well-being.
Daylight
The month with the shortest days is December, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 07:25 and sunset at 16:23. On the last day of December, in Piran, sunrise is at 07:45 and sunset at 16:32 CET.
Updated: Jan 24, 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 water temperature in December in Piran?
In December, the average sea temperature in Piran is 13.2°C (55.8°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 Piran?
The month with the shortest days is December, with an average of 8h and 48min of daylight.
What is the average length of the day in December in Piran?
In December, the average day length is 8h and 47min.
When is the sunrise / sunset in December in Piran?
In December, on the first day of the month, sunrise is at 07:25 and sunset at 16:23. On the last day of the month, in Piran, sunrise is at 07:45 and sunset at 16:32 CET.
Average sea temperature in December
Piran, Slovenia
- Average sea temperature in December: 13.2°C
The best months for swimming (with the highest average sea temperature) are July and August (24.8°C).
The coldest month (with the lowest average sea temperature) is February (9.3°C).
Average daylight in December
Piran, Slovenia
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
