Two showers a day (at least)

In a hot, humid country, อาบน้ำ is a ritual, not a chore. Most Thais shower at least twice a day: once in the morning, and again when they get home, before dinner or before going out. Some add a third after the gym or a sweaty commute. Freshness matters socially. Looking clean, smelling of powder and wearing ironed clothes is part of being polite to others, which is why you'll see people patting their faces with powder and changing shirts before a meeting. If a Thai friend says ขอไปอาบน้ำก่อน before an evening plan, they aren't stalling. And yes, the bucket and scoop (ขัน) in older homes are for showering too.