Jaycee Park Sprayground
✓ Verified https://www.houstontx.gov/parks/playgrounds-spraygrounds.html · confirmed against the parks department

Where: 1300 Seamist, Houston, Texas
Season: year-round (weather permitting)
Hours: 8 a.m.-10 p.m.
Cost: free
public-park
Oversized butterflies and leaves are worked into the play surface, where timed spouts keep the water going; benches surround the area.
What's on site. OpenStreetMap maps drinking water, playground alongside, parking at this location. No public toilets are mapped here — worth knowing before you commit to an afternoon.
When to go. Peak summer highs in Houston average 93°F. Mornings and late afternoons are far more comfortable than the middle of the day, and shade is worth planning around.
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 34 within 15. These are the ones worth the drive — ranked by shade, toilets and cost first, then by how close they are: