Will a rain cover for my camera bag work?

No. Rain covers protect against light drizzle but fail during Southeast Asian downpours when water runs down your back and pools at the bottom of the bag.

How do I know if fungus is growing in my lens?

Look for spider-web-like patterns inside the glass elements. This happens when gear is stored damp. Always store gear in a dry box or with silica gel when not in use.

Can I use an umbrella to protect the camera?

Only if you have a third hand. The wind during monsoons often renders umbrellas useless. Stick to dry bags.

Keeping Your Camera Gear Dry in Southeast Asia's Monsoon Season

Protect your gear by ditching traditional camera bags for high-quality dry bags and using silica gel packets to prevent internal lens fungus. Never swap lenses outside during a downpour, and always keep a microfiber cloth in a sealed plastic bag.

Use an IP67-rated dry bag. Standard 'weather-resistant' camera backpacks are not enough for tropical deluges. Buy a roll-top dry bag (20L is sufficient for a body and two lenses). Keep your camera inside this, only taking it out when you are under permanent shelter.
Manage humidity with silica gel. Southeast Asia has high humidity. Buy a bulk pack of reusable silica gel canisters or sachets. Keep 3-4 in your camera bag at all times. If they turn pink (indicating they are saturated), bake them in an oven or leave them in a dry place to reactivate.
Seal your lens changes. Never change lenses in the open. If you must change a lens, do it inside a large, clean Ziploc bag. Put the camera and the new lens inside, seal it mostly shut, and perform the swap inside the pocket of air to prevent moisture and dust ingress.
Immediate post-rain care. If your gear gets splashed, wipe it down immediately with a dry microfiber cloth. Do not put a damp camera back into a sealed bag; let it air dry in a well-ventilated room (but not in direct sunlight) for at least one hour before packing.

Will a rain cover for my camera bag work?: No. Rain covers protect against light drizzle but fail during Southeast Asian downpours when water runs down your back and pools at the bottom of the bag.
How do I know if fungus is growing in my lens?: Look for spider-web-like patterns inside the glass elements. This happens when gear is stored damp. Always store gear in a dry box or with silica gel when not in use.
Can I use an umbrella to protect the camera?: Only if you have a third hand. The wind during monsoons often renders umbrellas useless. Stick to dry bags.