The weather in Greece in October is high 60s and low 70s during the day and on average 10 degrees cooler at night. The sea may still be warm enough for swimming.
By the beginning of November a lot of the smaller islands tend to close down for the season. If you want to experience the Greek Islands we recommend traveling before the wedding - otherwise we recommend the larger more southern islands of Rhodes and Crete for a post celebration trip! Our Favorite Islands: Milos - Best Beaches Spetses - Most Romantic Hydra - Best Art Scene Paros - Most Charming Mykonos - Best Nightlife Aegina - Best for All Seasons Santorini - Best Views Recommendations For Mainland Greece: Unesco World Heritage Site: Meteora (3.5 hour drive from Athens) Archaelogical Site of Delphi (2 hours by car) Mani Peninsula (4 hours drive from Athens)
Unfortunately Daphne will not be able to make the trip :(