Weather in December
December heralds the advent of winter in
Izola,
Slovenia, accompanied by a steep drop in sea temperatures to 13.2°C (55.8°F) in contrast to
November. Short daylight hours dominate the cityscape, with the sun setting early and casting a chilly shadow over the city. Although the sea temperature drops, the city glows with festive cheer, brightening the cold winter days with holiday spirit.
Sea temperature
In Izola, in December, the average water temperature is 13.2°C (55.8°F).
Note: Swimming in 13.2°C (55.8°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.
Daylight
December has the shortest days of the year, 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 Izola, sunrise is at 07:45 and sunset at 16:31 CET.
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