Cardiff Open Mics — Updated 28 Apr 2026

Open Mic Nights in Cardiff

1 weekly open mics across City Centre. Updated weekly.

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1Open Mics
1Nights / Week
100%Free Entry
1Full Backline

1 Open Mics Across Cardiff

1 Weekly Mics 1 Nights a Week 100% Free Entry 1 With Full Backline Updated

Cardiff runs at least one open mic every night of the week we cover — 1 weekly nights across Cardiff, from venues like Porter's. About 100% are free for performers and audience, and 1 venues offer a full backline. Tuesday are the busiest, holding 100% of the week's listings. We re-verify every Cardiff mic monthly — the date below shows the last check.

By Day of the Week

Pick a night, see what's on. Each card shows venue, sign-up time, slot length, fee and backline.

Tuesday 1 mic

Cardiff Open Mic FAQs

Porter's is one of the most-recommended starter mics — check the cards above for full backline + walk-in sign-up venues, which tend to be most welcoming for first-timers.
Cardiff has 1 different open-mic nights running across the week. Use the day filter above to see what's on tonight.
Yes — all 1 weekly open mics in Cardiff are free for performers and audience.
1 of Cardiff's 1 open mics have a full backline (drum kit, guitar amp, bass amp, mics). Filter by 'Full backline' tag to see them.
Show up to the same mic 4-6 weeks in a row — hosts run on consistency. Once you're known, ask the host directly about a featured or paid support slot.

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