This app was mentioned in 2 comments, with an average of 2.00 upvotes
> but it isn't really all that easy to make sense of
probably because that list has so many errors, it's an embarrassment considering it comes from the official authority - do not trust those coordinates without first checking them out on Google Maps! or search using the name instead, that works - like this https://goo.gl/maps/cLjLtBLg8hs
someone made a free app listing the places to find, hopefully it does not have the same errors - https://play.google.com/store/apps/details?id=mt.org.mca.maltafreewifi
in general most public squares and gardens have free wifi, together with any location close to a Local Council office.
and then there are a number of restaurants and McD and BK of course.