Eight covenmate birthdays have been published on the official Witchbrook site. Here they are in calendar order, Spring to Winter, with each character's home address.
Data as of . Unofficial, and not affiliated with Chucklefish.
Autumn has three birthdays: Hana, Kiara and Evadne.
Summer also has three: Cormac, Pip and Vivi.
Spring and Winter have one each so far: Leif and Eli.
3 covenmates have not been revealed, so their birthdays are unknown.
What is not known yet
How many days each season has. The latest published birthday is Summer 25, so a season has at least 25 days.
Whether birthdays give a friendship bonus for gifts, as they do in many life sims. Chucklefish has not said.
Birthdays for professors and townsfolk. None are listed on the official site.
What each character likes to receive. Gifts are confirmed as part of building a relationship, but no preferences are published.
After launch this page will grow into a full calendar with festivals and gift suggestions. For now, read more about each covenmate on the characters page.