Crete weather in December can be quite cold & sometimes substantial rainfall is experienced, the deserted
towns and villages of Crete carry on their daily life at a very slow pace, and at times they seem a little depressing.
In December's sunny days the temperatures may rise to 20 degrees but the average temperatures in Crete range between 10 °C and 17°C. You might find it difficult to find many tavernas open and for that matter not many lodgings in the touristy areas but the picture is different when it comes to the more cosmopolitan cities in Crete.
If you plan to visit Crete during December, accommodation must be chosen carefully and heating is essential. However the days can really be enjoyed, as when the sun does shine it can be really warm and walking can be a real pleasure. Although to travel Crete in December is a little more inconvenient (via Athens) it is well worth the effort and with a sensible outlook and good preparation for your visit, Crete can be enjoyed as much as in summer

In winter, weather in Crete is relatively temperate in most areas, apart from the mountainous regions, where snowfall is frequent. Average temperatures in Crete range between 10 °C and 14°C during winter. Spring weather in Crete is fabulous, because it is the time of the year when nature comes alive and the island fills with lush green trees and blossoming flowers. Spring temperatures in Crete range from the mid teens to low 20s.
Many visitors prefer to come to the island when the weather in Crete is warm and very pleasant, with temperatures ranging most of the days between the mid and the high 20s, sometimes reaching the low 30s. During autumn, when the leaves on the trees turn magnificent colors, weather in Crete is still quite warm and the seas are perfect for a swim. Fall temperatures in Crete range from the high teens to mid 20s. Visitng Crete in winter, winter jeep safari is an unforgettable experience!. A fantastic tour through old villages and impressive nature.