O'Neil Park Splash Pad
✓ Last confirmed for the 2026 season
Where: 6448 W Missouri Ave, Glendale, Arizona
Season: May 24 - September 1
Hours: 12-7 p.m.
Cost: free
public-park
O'Neil Park's splash pad follows Glendale's summer aquatics calendar, open afternoons from Memorial Day weekend through early September. The neighborhood park sits just off Missouri Avenue in central Glendale.
When to go. Peak summer highs in Glendale average 106°F. Go before 11am or after 5pm — midday is genuinely unsafe for small children, and the concrete around a pad runs hotter than the air.
How long it's open. Roughly 14 weeks a year, from May to September. Seasons shift year to year and municipal pads often close early for maintenance, so check before a long drive.
If this one's closed or packed
Splash pads close for maintenance, run short seasons and fill up on hot weekends. There are 5 other pads within 5 miles and 17 within 15. These are the ones worth the drive — ranked by shade, toilets and cost first, then by how close they are: