Should I pack for all weather?

No. Pack for tropical heat and bring one light rain jacket. If you get cold in the mountains of North Vietnam, buy a cheap fleece locally.

Is it safe to travel solo?

Yes. Southeast Asia is well-trodden. Use common sense, keep your passport in a money belt, and always share your location with a friend back home.

Planning Your First Backpacking Trip Through Southeast Asia

Focus your route on a 4-week loop starting and ending in Bangkok to minimize costs and simplify logistics. Stick to the 'Banana Pancake Trail' if it's your first time, as it offers the most reliable transport, social hostels, and infrastructure for solo travelers.

Select your entry hub. Fly into Bangkok (BKK) or Kuala Lumpur (KUL). These airports are the cheapest international hubs and act as the logical starting points for any loop through Thailand, Laos, Vietnam, and Cambodia.
Choose your direction. Follow the 'Golden Loop' clockwise: Thailand to Laos, then head south through Vietnam, Cambodia, and back into Southern Thailand. This keeps you moving in a logical flow without doubling back on expensive flight paths.
Book long-distance legs only. Only book your international arrival and departure flights in advance. Leave your domestic bus, train, and budget airline tickets for 2-3 days before you depart each city; this allows you to stay longer if you meet people or skip places you don't like.
Map your pace. Do not plan more than one destination per week. Southeast Asia is humid and travel times are often double what Google Maps suggests. Moving too fast leads to burnout.

Should I pack for all weather?: No. Pack for tropical heat and bring one light rain jacket. If you get cold in the mountains of North Vietnam, buy a cheap fleece locally.
Is it safe to travel solo?: Yes. Southeast Asia is well-trodden. Use common sense, keep your passport in a money belt, and always share your location with a friend back home.