December weather forecast
Heraklion, Greece

December marks the end of the year in Heraklion with a definite winter feel, characterized by shorter days, lower temperatures, and rainfall. Compared to November, rainy days increase to 8.9 days with a total rainfall of 77mm (3.03"). Despite the more frequent showers, the city retains its charm, offering various indoor and outdoor experiences. The diminishing daylight and sunshine hours are counterbalanced by the festive spirit that pervades the city. Sea temperatures noticeably drop, pushing beach activities off the agenda until the arrival of warmer months again.

Temperature

With the onset of December, Heraklion experiences a modest temperature adjustment, with the average high-temperature gently receding from a pleasant 20.1°C (68.2°F) in November to an enjoyable 17°C (62.6°F). In Heraklion, December's low temperatures hover around a fresh 12°C (53.6°F), reflecting a minor decrease from the daytime highs.

Rainfall

In Heraklion, in December, during 8.9 rainfall days, 77mm (3.03") of precipitation is typically accumulated. Throughout the year, there are 53.2 rainfall days, and 501mm (19.72") of precipitation is accumulated.

Sea temperature

In Heraklion, the average seawater temperature in December is 18.4°C (65.1°F).
Note: Swimming in 18.4°C (65.1°F) does not offer a pleasant experience for most individuals. The act of controlling one's breathing becomes progressively difficult as the water temperature goes under 21°C (69.8°F).

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 07:10 and sunset at 17:07. On the last day of December, sunrise is at 07:28 and sunset at 17:17 EET.

Sunshine

In December, the average sunshine is 3.9h.

UV index

December is the month with the lowest UV index in Heraklion, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 2 in December transforms into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.