If you totally want to avoid undressed women during the summer months in most western countries, spend the entire summer in the mountains (to be really safe, consider camping in a remote area). Avoid needing to shop, Certainly avoid stores, public streets, mass transit, etc.
If you want to hire an undressed goy to work in your house, that is a problem. Of course you can do your own housework, or hire someone with clothes. Air conditioning helps (no one wants to run around in your house in their bikini if its 65 degrees inside). In all fairness, most blue collar workers dress a lot more modestly than beach “swimmers”.
The beaches during the summer are especially problematic since even by the goyim’s standards they run around excessively undressed – which is something many of the goyim also complain about. Avoid going to the beach – which is not a big problem.