What is the best time of the year for vacationing on the Greek Islands?

It depends on the type of vacation you desire. If you want to avoid the crowds, it is best that you come to the Greek Islands from April to June or in September, when the weather is very pleasant and visitors are few. On the other hand, if you prefer vacationing with the crowds, July and August are the best months to visit the Greek Islands, when they are packed with tourists from Greece and abroad.