Will my clothes ever actually dry?

In high humidity (80%+), air drying can take 24 hours. Use the 'towel-roll' method: lay the wet garment on a dry towel, roll it tight like a burrito, and step on it to squeeze out excess moisture before hanging it up.

Should I bring a raincoat?

Skip the heavy waterproof shell. It will make you sweat more than the rain would. Bring a lightweight, breathable water-resistant windbreaker or a cheap poncho bought locally.

How to Pack for Humid Climates

Prioritize moisture-wicking synthetic fabrics or linen and pack fewer items than you think you need. You will be doing laundry every three days anyway, so focus on lightweight, quick-dry clothing that allows for airflow.

Audit your fabric choices. Avoid heavy cotton or denim. Cotton holds onto sweat and takes forever to dry, leading to chafing. Choose technical fabrics (polyester blends) or high-quality linen which dries rapidly and breathes.
Use the 'one-third' rule for underwear. In high humidity, you will sweat through your base layer within hours. Pack enough underwear for 1/3 of your trip length and plan to hand-wash using a travel soap bar or liquid packet in your hotel sink.
Minimize your footwear. Your feet will swell in humidity. Pack one pair of reliable, quick-dry walking sandals (like Tevas or Chacos) and one pair of lightweight breathable sneakers. Leave the leather boots at home.
Bring a dry bag. Keep electronics and dry clothes inside a 10L or 20L dry bag inside your backpack. This protects your gear from sudden tropical downpours and prevents moisture buildup during transit.
Use packing cubes. Use mesh-top packing cubes to separate damp, worn clothes from your clean, dry ones. This prevents odors from migrating through your entire bag.

Will my clothes ever actually dry?: In high humidity (80%+), air drying can take 24 hours. Use the 'towel-roll' method: lay the wet garment on a dry towel, roll it tight like a burrito, and step on it to squeeze out excess moisture before hanging it up.
Should I bring a raincoat?: Skip the heavy waterproof shell. It will make you sweat more than the rain would. Bring a lightweight, breathable water-resistant windbreaker or a cheap poncho bought locally.