Crete, Rhodes and larger islands stay lively into late October; smaller islands wind down mid-month; mainland is in full autumn glory.
FAQ
Is October a good time to visit Greece?
October rewards flexible travellers: swimmable seas in the south (Crete, Rhodes), golden autumn on the mainland, and shoulder-season prices everywhere.
Can you swim in Greece in October?
Sea temperature in October averages 21–22°C. Yes, especially early October and in the south.
How busy is Greece in October?
Crowd levels are low, and prices are low. Crete, Rhodes and larger islands stay lively into late October; smaller islands wind down mid-month; mainland is in full autumn glory.