January is considered the “low season” for Santorini and one of the quietest months of the year. This is very good if you are looking for lower prices on hotels and accommodation as generally, it's cheaper than the summer months.
Which Greek island to visit in January?
December, January, FebruaryBigger islands like Crete and Corfu are more likely to stay open all year round. Corfu and the other Ionian islands (including Paxos and Kefalonia) see maximum daytime temperatures of 13-14ºC and you will still get an average of 4 hours sunshine each day.