Location Information 14 South 20th Street Wyandanch , NY 11798-3005 Phone: (631) 643-4848Fax Number: (631) 643-9664Contact Email: wyan.wpl@gmail.comVisit our website: Wyandanch Public LibraryPublic Services: StorytimesWord ProcessorsMeeting Rooms Hours of operation Monday: 10:00 - 9:00 Tuesday: 10:00 - 9:00 Wednesday: 10:00 - 9:00 Thursday: 10:00 - 9:00 Friday: 10:00 - 6:00 Saturday: Winter: 10:00 - 5:00 Summer: 10:00 - 3:00 Sunday: Winter: 1:00 - 5:00 Summer: Closed Copy Permalink: https://portal.suffolklibrarysystem.org/node/110 View Printer-friendly Send by email