The third Tuesday of each month, 8:00 PM. Only one source reports it.
An open-mic listing site, updated Jul 18, 2026, currently lists 'All Arts Open Mic' at Arts Garage, 94 NE 2nd Ave, Delray Beach, every third Tuesday at 8 PM [s1].
A Venue's Website read on 2026-09-25 disagrees with the Tuesday night here: Tuesdays are Karaoke Night per venue calendar/Eventbrite, not open mic. Which is current is unresolved — check before travelling. Something about this has changed recently — confirm before going.
Call to confirm the night
The sources disagree on the night.
An open-mic listing site's current listings page, checked Aug 14, 2026, no longer includes Tin Roof at all. Nothing else corroborates it beyond the original listing site, whose own entries already disagreed with each other on the time.