December weather forecast
Rethimno, Greece

The first month of the winter, December, is still a comfortable month in Rethimno, Greece, with an average temperature ranging between min 10°C (50°F) and max 16°C (60.8°F).

Temperature

The advent of December brings a subtle shift in temperature, with the average high moving from a pleasant 20°C (68°F) in November to a comfortable 16°C (60.8°F). Rethimno records a consistent low-temperature of 10°C (50°F) during December nights.

Rainfall

In Rethimno, in December, during 13 rainfall days, 100mm (3.94") of precipitation is typically accumulated. Throughout the year, there are 67 rainfall days, and 664mm (26.14") of precipitation is accumulated.

Sea temperature

In Rethimno, the average seawater temperature in December is 18.3°C (64.9°F).
Note: For swimming, a surface water temperature of 18.3°C (64.9°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

Daylight

December has the shortest days of the year, with an average of 9h and 48min of daylight.
On the first day of the month, sunrise is at 07:12 and sunset at 17:09. On the last day of December, sunrise is at 07:30 and sunset at 17:19 EET.

Sunshine

January and December, with an average of 4h of sunshine, are months with the least sunshine in Rethimno.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Rethimno, Greece. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 2 in December translates into these instructions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.