Protecting gear during high humidity travel

I'll be doing some traveling around parts of Asia soon and I'll be in some extremely high humidity environments, sometimes from 80-90% humidity based on what I've read about different areas climate data. What can I do to protect my gear? Should it be of significant concern to me or am I overthinking it?

Some tips I've heard about are things like keeping gear in a Ziplock bag with silica gel packs and putting it in the sun for an hour before going out (so the temp of the gear is level with the exterior temp to prevent fogging) or even just as simple as carrying some of these silica gel packs loose in my camera bag in general. What I hear the most is the shock of a dry and cool room to the sudden heat and humidity of the outdoors is what would be the big problem to cause moisture.