O Beach Ibiza brings its SIN Sundays concept back to San Antonio this Sunday, September 20, for the final scheduled edition of the 2026 season. The daytime party combines house music with live entertainment, poolside energy and a lineup featuring both returning O Beach residents and guest artists.

The event runs from 13:00 to 23:00. The current early-entry ticket is €35 for arrival before 14:00, while standard admission is €45. Clubtickets is currently showing fewer than 50 tickets remaining in both ticket categories.

Billie Clements, Chris Wright and more

The September 20 lineup features Billie Clements and Chris Wright, New Era, Dermot C, AJ Murphy, Shaun Flynn, Ellie Sax, Jamie Love and Sam Dungate. The full lineup is confirmed on the current Clubtickets event listing.

Billie Clements and Chris Wright are the resident DJs associated with SIN Sundays, with the wider concept built around house music and daytime entertainment. The programme also includes live performers, percussionists, instrumentalists, acrobats and other entertainers around the pool.

The final SIN Sunday of 2026

September 20 is particularly significant because it is the final SIN Sundays date currently scheduled for 2026. The concept appeared at O Beach on May 3, June 7, July 5 and August 2 before returning for this September closing date.

The party is part of O Beach's broader Sunday programme, which also includes other concepts at different points of the season. Clubtickets lists SIN Sundays as one of the venue's recurring Sunday formats alongside Ibiza Spray and Kinky Malinki.

A daytime party by the pool

The format is built around the O Beach pool rather than a traditional late-night club environment. Music begins at 13:00 and continues through to 23:00, with the venue's pool, terrace and entertainment forming part of the experience. O Beach describes SIN Sundays as a house music party combining resident DJs with live performers and daytime entertainment.

Guests should also pay attention to the arrival conditions. Early-entry ticket holders must enter before 14:00, while standard ticket holders must arrive before 15:00. If the venue reaches capacity, O Beach says a one-in, one-out system may operate.

Important information for guests

SIN Sundays is strictly 18+, and valid identification is required. There is no re-entry once guests leave the venue, while tickets are non-refundable. O Beach also states that lineups and set times can be subject to change.

The venue's dress rules prohibit costumes, body paint, stag or hen party accessories, sports team shirts and inflatables. Guests must wear appropriate footwear and remain fully dressed when leaving the venue. Proper swimwear is required for pool use, and topless sunbathing is not permitted.

With Billie Clements, Chris Wright, New Era, Dermot C, AJ Murphy, Shaun Flynn, Ellie Sax, Jamie Love and Sam Dungate on the bill, September 20 marks the final SIN Sundays gathering of the 2026 season. From 13:00 to 23:00, O Beach will close out the series with ten hours of house music, poolside entertainment and live performances in San Antonio.