XS Nightswim at Encore Las Vegas: The Original Pool Party

The first nighttime pool party ever offered in Las Vegas. Still the standard everything else gets measured against. World-class DJ residencies, a 40,000-square-foot venue that wraps around the Encore pool, gold-dripped interiors, theatrical performers, and a Sunday night crowd that dresses up, shows up, and stays until close. Here is everything you need to know before you go.

Warm Water, Cold Drinks, and a DJ Set That Goes Until Dawn

XS Nightclub at Encore at Wynn Las Vegas invented the nighttime pool party format in Las Vegas. Before XS launched Nightswim, Sunday night was the night you packed your bags, settled your hotel bill, and flew home. XS changed that. They opened the Encore pool after dark, brought in world-class DJs, turned the lights down and the production up, and created an event that now consistently draws more demand than most Friday and Saturday nights at competing venues. The format has been copied at virtually every major Las Vegas pool property since. The original is still the reference point.

Nightswim runs seasonally from late April through late September, every Sunday night. The 2026 season runs from April 27 through September 27. Doors open at 10:30pm. The event transforms XS into a hybrid indoor-outdoor experience, the main 40,000-square-foot venue stays open with its full interior, and the outdoor portion wraps around the Encore pool with cabanas, daybeds, the iconic outdoor DJ booth, and the Encore pool itself fully available for swimming. This is not a pool adjacent to a nightclub. The pool is inside the event. You can go from dancing on the main floor to swimming in the Encore pool and back again across the same evening.

Tomorrow Can Wait: The Concept Behind Sunday Night

XS Sundays runs under the concept name Tomorrow Can Wait, a bold reframing of the traditional end-of-week experience designed to make Sunday feel like the most intentional night of the weekend rather than an afterthought. The event transforms XS into a high-energy immersive spectacle with theatrical performers moving through the crowd, elevated production moments throughout the venue, and interactive elements that build as the night progresses. The concept acknowledges something the regular Sunday crowd already knew: the energy at XS on Sunday night has a different quality than Friday or Saturday. The lines are shorter, the wait times are 15 to 45 minutes compared to one to three hours on peak weekend nights, and the crowd arrives already knowing what they want from the evening rather than still figuring it out.

The Venue: 40,000 Square Feet of Wynn-Grade Everything

XS is located inside Encore at Wynn Las Vegas at 3121 S Las Vegas Blvd. The design is one of the most distinctive in Las Vegas nightlife, gold and black throughout, the interior architecture inspired by the curves of the human body, an indoor-outdoor DJ booth positioned between the main room and the pool, and production infrastructure that matches the technical capabilities of a world-class concert venue. The main room has a sprawling dance floor, VIP booths, multiple bar stations, and sightlines to the DJ from virtually everywhere in the room. The outdoor section adds the pool, cabanas, daybeds, and open sky.

The venue ranks among the top grossing nightclubs in the world year after year and has held that position since opening. Wynn Nightlife’s VP Ryan Jones has described Nightswim as one of the brand’s staple events and noted its longevity as a reflection of what happens when a concept is executed at the highest level consistently. “XS Night Swim was the first-ever nighttime pool party offered in Las Vegas,” Jones said, “and its longevity and continued popularity is incredible to see each season.”

The DJ Residencies and Who Is Playing

XS consistently books the most in-demand names in electronic music for its Nightswim season. Past Nightswim headliners include David Guetta, RUFUS DU SOL, Afrojack, Dillon Francis, Mau P, Steve Angello of Swedish House Mafia, The Chainsmokers, Kygo, and Diplo. The 2026 season lineup is announced through wynnsocial.com/events as dates are confirmed, with most summer headliners announced in rolling windows rather than all at once. Checking the calendar before you book your visit is essential, the experience varies significantly depending on who is behind the booth. Average ticket prices run between $67 and $133 depending on the artist and date, with premium nights at the higher end of that range.

How to Get In and What It Will Cost

There are three ways into XS Nightswim: the general admission line, the guest list, and table service. The general admission line on Sunday nights moves significantly faster than Friday or Saturday, with average wait times of 15 to 45 minutes compared to one to three hours on peak nights. Arriving at 10:30pm as doors open is the best strategy for minimizing wait time. For the guest list, sign up in advance through wynnsocial.com or through a Wynn Social promoter, the guest list typically offers free or reduced admission for women before midnight and reduced cover for men on qualifying nights. Wynn and Encore hotel guests can purchase line passes through the hotel concierge, bypassing the standard entry queue entirely. Table service removes the cover charge, provides a dedicated VIP host, and includes a private cabana or booth with bottle service. Table pricing varies by date and artist.

Standard cover charges run approximately $30 to $50 for women and $50 to $75 for men on standard Sunday nights, with premium artist nights running higher. The dress code for Nightswim is more relaxed than standard XS non-swim nights, swimwear and coverups are permitted and encouraged. Shorts and flip flops are allowed. No torn, baggy, or stained clothing. No offensive prints. No tank tops or athletic wear for non-swimming purposes. The full dress code policy is at wynnlasvegas.com.

The Things Worth Knowing Before You Go

Coat check is available for small personal items at $20 to $40 depending on the night. Larger items including luggage should be stored at the Wynn or Encore Bell Desk before arriving at the venue. All professional photography and videography requires advance approval from the Wynn Public Relations department, phones are fine, professional equipment is not without clearance. The venue is inside Encore, accessible through the resort from the main entrance on Las Vegas Boulevard. Rideshare drop-off at the Encore entrance is the easiest arrival option. Parking is available in the Wynn and Encore self-park garage.

The most important piece of advice for first-time Nightswim visitors: go in the water. The Encore pool is fully heated, fully lit, and fully open throughout the event. The combination of being in a pool while a world-class DJ set plays at concert volume with the Wynn production team running full lights and effects overhead is an experience that is genuinely hard to replicate anywhere else in the world. This is what Las Vegas invented the nighttime pool party for. Do not stand at the edge.

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