Snake in pool skimmer what to do is a strong search because the skimmer looks like routine maintenance until an animal is inside it. The danger comes from hand placement in a narrow box where the snake cannot retreat easily and you cannot see every angle. Treat the skimmer basket, lid, and nearby plumbing area as a confined wildlife space, not just a pool chore.
Do not reach into the skimmer opening, pull the basket with bare hands, or start investigating the pump area immediately. Keep children and pets away from the pool edge first. If the lid is already off and the snake is visible, back up and keep the scene still instead of trying to force it out with a net handle or garden tool.
Pool systems attract snakes for practical reasons. Water snakes and other species may follow frogs, insects, or cool damp edges around decks and landscaping. Once inside the skimmer box, the animal may be trapped, stressed, and far more likely to react defensively if surprised at close range.
If you can take one photo safely from above without leaning over the opening, do that and stop there. A clear top view of the body pattern and the pool context is more useful than trying to grab a dramatic close-up. Avoid opening additional equipment housings or lifting covers by hand just to keep tracking the snake.
Snakenap can help compare the visible pattern against common water-associated species, but low confidence should make you more conservative. If the app suggests a venomous possibility or the snake is wedged where removal would require close contact, call local wildlife help. After the encounter, reduce frog and rodent attractors around the pool and inspect nearby coping, drains, and dense plantings that create repeat shelter.