From Hellenion’s May 2025 Calendar: May 1 – honor Athena; May 2 – honor Aphrodite, Heracles, Hermes, and Eros; May 4 – the Thargelia, honor Artemis; May 5 – the Thargelia, honor Apollon; May 6 – honor Poseidon and Theseus; May 7 – honor Helios, the Muses, and Rhea; May 10 – Libation to Apollon; May 17 – the Bendideia; May 2e – the Kallynteria; May 23 – the Plynteria; May 27 – Hekate’s Deipnon; May 28 – the Noumenia for the month of Skirophorion; May 29 – Agathos Daimon; May 30 – the Arrephoria, honor Athena; May 31 – honor Aphrodite, Heracles, Hermes, and Eros. ** Remember all festivals begin at sundown of the day before. See our calendar page for more information about each occasion.