Each summer the island's three municipalities organize separate cultural events and festival covering a wide range of activities affording locals and foreign visitors on summer holidays the chance to truly enjoy themselves. These events are as follows:
"The Hippocratia" organized by the Municipality of Kos from July to September. This festival includes the reading of the Hippocratic Oath, classical and other music concerts, theatrical works, ancient tragedies, folklore exhibitions, art, sculpture & photography exhibitions, traditional dances and song, special educational - entertainment events for children and yacht races.
"The Dikea" organized by the Municipality of Dikeos during July and August. This festival includes concerts, theatrical performances, traditional dances, new book presentations, events for children and sports.
"The Heraclia" organized by the Municipality of Iraklidon during July and August. This festival includes concerts, theatrical performances, traditional music and dance, and photography exhibitions.

Folklore feasts and Celebrations :
Quite a few religious feasts are celebrated on Kos at which the island's old customs and usages are revived, some of which will certainly be of interest to the visitor due to their peculiarity. One such example is the feast of Agios Georgios on 23rd April at Pili when horse races are held. On the same day in Asfendoiou locals serve up mezes in the forest while on 15th August at Kephalos boiled goat with rice is served up by the local livestock breeders.
Other religious celebrations are held on the feast of the Holy Spirit, the feast of the Apostles on 29th June and 15th August in Antimachia.

The feast of Agios Ioannis is also celebrated on 28th August in Mastichari, the birthday of the Virgin on 8th September in Kardamena, Aghios Ioannis on 28th August and the Presentation of the Virgin in the Temple on 21st November in Kephalos and Aghios Dimitrios on 26th October in Asfendiou.
During summer each year celebrations are organized on Kos with a purely local timbre relating to island products or fishing.

During the first week of August a Wine Festival is held in Mastihari while during the first half of the same month there is a Fish Festival and Honey Festival in Kefalos and Antimachia respectively. Moreover, during the first ten days of October a Fish Festival is held in Kardamena.

Lastly, Carnival is celebrated with float parades, primarily in Antimachia and Pili.


From July until August, the festival Hippocratia takes place in the town of Kos.

The festival includes a series of cultural events such as concerts by Greek artists and local groups, performances of ancient Greek and contemporary plays, performances of traditional and modern dance and various art exhibitions.

The majority of the events are taking place in the Medieval Castle, on Eleftherios Square, at the Orpheus Theatre and at the 3rd primary school of Kos.
The cultural events Alasarnia are taking place at the town of Kardamena. In the same village, on the 7th of August, a religious festival is celebrating the “birth of the Virgin Mary” and various festivities are taking place.

At the beginning of August, a screening of a Theatrical play is held at the village of Antimachia, as well as performances of traditional dances and songs and a celebration of traditional food. Also in Antimachia, the Honey Festival is celebrated on the 24th of August, during which visitors can taste various delicacies made with local honey.
On the 27th of September, an evening with traditional music is taking place at the village of Kephalos, for the International Day of Tourism.

On the 21st of November a religious festival is celebrating the Presentation of the Virgin at the village of Kephalos.

The Kos Winter Festival is held from the 7th until the 17th of March at the town of Kos, during which various music, theatre and dances performances as well as art exhibitions and film projections.