Short answer
Left alone, several hours to a full day. With a water eject tone, most of it comes out in 1–3 cycles of 30–60 seconds; heavy exposure may need up to 5 cycles plus air-drying.
Water in the speaker grille evaporates slowly because the cavity is small and enclosed. That's why sound can stay muffled for hours after a shower or rain.
| Situation | Without help | With water eject |
|---|---|---|
| Splash, rain, shower steam | 1–4 hours | 1–2 cycles |
| Brief dunk (sink, puddle) | Several hours | 2–3 cycles + 30 min drying |
| Pool, toilet, long submersion | Up to 24 hours | 3–5 cycles + several hours drying |
Apple recommends waiting at least 30 minutes before charging a wet iPhone, and up to 24 hours if a liquid-detected alert appears.
