Agii Theodori, Greece offers 1 beach perfect for sunbathing, surfing, swimming, and more. Agii Theodori, Crete, Greece, is known for its proximity to the ancient city of Knossos and the beautiful beaches of the Cretan coastline. The best time to travel to Agii Theodori, Greece, is from late May to early October, with average air temperatures ranging from 75°F to 85°F and water temperatures around 72°F to 78°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!