Wellington winter, week after week of southerly rain — mesh floors or solid, settle it for me

Six years in, five hives on a ridge in Wellington, and every winter I go back and forth on this. It's mid-winter here, we've had three southerly fronts in a row, everything is saturated, and I've got three hives on mesh floors with the inspection trays in, two on solid floors. The mesh-floor hives feel drier inside — the solid-floor ones both had condensation drips on the underside of the crown board at my last quick lid-lift, and one has a patch of mould on an outer frame. But the mesh hives are lighter on stores, presumably burning more to keep the cluster warm in the wind. NZ conventional wisdom says damp kills bees, not cold, and I mostly believe it. But is the answer mesh with trays in for the storms, mesh wide open, or solid with better top insulation? What's actually worked for people in genuinely wet, windy winters — not continental cold, WET.