September weather: summer lets go, slowly
September is a month of two halves. The first two weeks are still summer, with highs in the high 90s to around 100°F (37–38°C) and warm nights around 75°F (24°C); a heat wave around Labor Day is common. By the last week of September, highs have usually eased to the mid to high 80s (29–31°C) and lows to the mid 60s (18°C), and the evenings turn genuinely pleasant. The monthly average high is around 94–96°F (34–36°C). Rain is uncommon, one or two days in a typical September, mostly early as the monsoon fades, and humidity drops back into the low teens by month's end.
Sunshine remains around eleven hours a day and the sun is still strong; September sunburns are a classic because visitors assume the worst is over. Wind is light. The big change is at night: by late September a walk down the Strip at 10pm is comfortable in a shirt, the patios and rooftops are in full use and the first evening of the year when you might want a light layer arrives around the end of the month. For pool weather without the July punishment, late September is close to ideal.
Labor Day weekend
Labor Day weekend opens the month and behaves like Memorial Day's twin: the last big pool weekend of summer, a heavy drive-in crowd from California and Arizona, headline DJs at every dayclub and nightclub, full sportsbooks for the opening weekend of college football and high weekend rates with minimum stays at the party-oriented resorts. It is often one of the hottest weekends of the year, which does nothing to dampen the crowds.
Sunday and Monday nights of the holiday are typically much cheaper than Friday and Saturday, and the week after Labor Day is one of the calmest of the year as summer ends, schools are fully back and the autumn conventions have not quite begun. If you want the city on a budget with the pools still at full operation, that post-Labor Day week is one of the best windows on the calendar. See the holidays guide and the sportsbook guide for the football side.
Mexican Independence Day fight weekend
The weekend nearest September 16 has become one of the biggest weekends in Las Vegas thanks to a tradition of major championship boxing on Mexican Independence Day weekend, typically at T-Mobile Arena or the MGM Grand Garden Arena, though in some years the headline card lands at Allegiant Stadium or elsewhere. Alongside the fight come concerts by top Latin artists at the arenas and the big theaters, packed sportsbooks and viewing parties, and a citywide celebration that fills the Strip and Fremont Street with flags and music.
Hotel rates for that weekend jump to peak levels, rooms near the arenas sell out weeks ahead, restaurants book solid and rideshare surges around fight time are severe. It is a fantastic weekend to be here if you are part of it and an expensive one if you are not; the details vary every year, so check the promoters and the events hub when you know your dates. The weekdays before and after the fight weekend drop back to normal September pricing.
Conventions return and prices climb
September is when the convention calendar restarts. A run of large trade shows typically fills the Las Vegas Convention Center, Venetian Expo and Mandalay Bay through the second half of the month, and weekday rates rise accordingly, especially at the resorts nearest each venue. By late September, Tuesday-to-Thursday nights at mid-Strip resorts can cost more than the weekend, a pattern that holds through October and is the opposite of summer. The monthly rate curve is therefore a climb: cheap after Labor Day, rising into the fight weekend, then higher and steadier once the conventions arrive.
Crowd character shifts with it. Fewer families, more lanyards, busier steakhouses at 7pm and fuller sportsbooks every Saturday and Sunday as college and pro football gets going. Football weekends by themselves do not move rates much, but a home Raiders game at Allegiant Stadium adds demand on the south Strip. For the mechanics of dodging convention pricing, see how to get a hotel deal and Downtown hotels, which are far less affected.
Life is Beautiful and other September dates
For a decade the Life is Beautiful music and arts festival took over the streets of Downtown in the second half of September, filling Fremont East and the surrounding blocks with stages, murals and a large, cheerful crowd, and pushing Downtown hotel rates up for its weekend. The festival's format, dates and future have changed in recent years, so treat it as something to check rather than count on; if it runs in your year, Downtown will be busy and expensive that weekend and the murals it left behind are a permanent attraction in the Fremont Street area and the Arts District.
September also typically brings the start of the Aces' playoff push at Michelob ULTRA Arena, the first Golden Knights preseason games, big residency dates as artists return from summer tours and, at the end of the month, the first hints of the autumn festival and convention crush that defines October. If you are choosing between September weekends, the one after Labor Day is the quietest and the fight weekend is the loudest.
Pool status in September
Pools are open all month at most resorts, with full summer hours through Labor Day and gradually shortening hours as the month goes on. Dayclubs run their closing parties through September and some into October, typically weekends only by the second half of the month. Late September is, for many people, the best pool weather of the year: hot enough to want the water, not so hot that the deck is unusable, and with cooler evenings that make the after-pool hours better too.
Some secondary pools and features begin closing for the season in late September, and a few resorts trim to a single main pool. If pool time is important, confirm what will be open for your dates. Cabana and daybed pricing is moderate: above the August lows on weekends, well below the spring peak. See the best pools and pool season for closing patterns.
What to pack for September
Pack for summer with a nod to the evenings if you are here late in the month.
- Swimsuits, pool sandals and cover-ups; the pools are still the daytime plan
- Light, breathable clothing and a hat; the sun is still fierce
- High-SPF sunscreen and after-sun; September sunburn is very common
- One light layer for late-September evenings and for over-cooled interiors
- Comfortable walking shoes; the Strip walk becomes pleasant again at night
- Team colors and a portable charger for football Saturdays and Sundays in the books
- Hiking shoes for a dawn Red Rock outing if you are here in the last ten days
The interactive list is at our packing list.
Best things to do and who September suits
September is the month for pools that are still open and evenings that are finally comfortable. Rooftop bars, patio dining and the Strip after dark are at their best in the second half of the month, and by the last week the desert reopens: Red Rock in the morning, Hoover Dam at any hour, Valley of Fire early. Football turns every sportsbook into a viewing party, the fight weekend is a spectacle in itself, and the residencies are back at full strength.
Budget travelers: the week after Labor Day is excellent; the second half of the month is convention-priced midweek. Couples: late September is a top-tier choice, with warm nights and open pools. Groups: Labor Day and the fight weekend are the party weekends. Families: good, especially early in the month with the pools open and the summer crowds gone; see best family hotels. Sports fans: football, boxing and the Aces make it one of the best sports months of the year.
