What to pack for Chiang Mai in December

UV index of 6.8 burns exposed skin in under 15 minutes.

Water reflects sunlight off paddies and rivers nearby.

Mosquitoes breed in jungle water year-round.

Cuts from jungle plants get infected quickly without treatment.

Tap water isn't safe here. A filter bottle beats buying plastic twice a day.

Limited outlets at guesthouses drain devices overnight.

Set it up before you land. Signal drops for long stretches outside cities.

Dark by 5:45pm. Every campsite chore after that is a two-hands job.

Domestic flights between sites fit carry-on only.

Day hikes into national parks need water and sun protection.

Fits the overhead on every airline that matters. Skip the checked-bag line entirely.

Humidity at 75% means sweat clings to skin all day.

For temples, mosques, and churches that check at the door.

Jungle terrain and water crossings need grip underfoot.

Treat the clothes once and it lasts weeks.

Tap water causes dehydration that rehydration salts address fast.

Unfamiliar food and water trigger digestive trouble.

One brick charges the laptop, phone, and camera.

Hotel and cafe wifi is shared with everyone else in the building. A VPN keeps your banking and email to yourself.

International travel through busy markets increases theft risk.

Wet jungle air soaks clothes fast without organization.

Laundry dries slowly at 75% humidity and 11 daylight hours.

Overnight buses and early temple visits require silence.

High of 81°F calls for minimal leg coverage.

Lips crack fast at this altitude under tropical sun.

Dense jungle means insects find you at dusk.

Contaminated water spreads germs through your hands.

Bites swell and itch worse when sunburned skin surrounds them.

Multiple devices need charging in rooms with one socket.

A few phrases go a long way. Ten minutes a day before you leave is plenty.

Border crossings nearby require passport access at any moment.

Hostels and shared spaces need bag security.

Hanging storage prevents mildew in humid guesthouses.

Long bus rides between cities need neck support.