Oh man I didn’t even think about atmospheric pressure, could giant windbreakers not potentially be constructed to lessen the effect of this wind?
Or maybe in this fantasy world as it has formed originally with these gravity differences there are lots of natural windbreakers, raised areas and lowered areas, mountains etc due to earth getting compacted to different levels
I would imagine the gravity variance within an area would be fairly mild by comparison to the differences between areas - like how you tend to get warmer temperatures near the equator but can still get variances in temp around that
Oceans may become terrifying but it may be easier to travel by air anyway, instead of trying to travel by ocean you could attempt to plot a course through lower gravity areas and avoid the higher ones Could even spawn some badass hardened sea captains that are required to make certain journeys as they are impossible by air