Beware of call center scams. Never transfer money to strangers. Verify sellers before online purchases. Watch out for taxis that refuse meters — use Grab instead. Don't share personal information.

Rainy season (May-Oct): Watch for flooding. Northern Thailand: Smoke haze Feb-Apr. Southern coast: Tsunami risk (very rare). Follow Thai Meteorological Department updates.

Always wear a helmet on motorcycles. Drive on the left side. Watch for motorbikes everywhere. Never drink and drive. Be cautious on rural roads.

Drink bottled water only. Apply SPF50+ sunscreen. Use mosquito repellent. Be cautious with street food if you have a sensitive stomach. Always carry anti-diarrhea medication.

Lèse-majesté law is strictly enforced — never disrespect the monarchy. Carry passport or copy at all times. No smoking in prohibited areas (฿5,000 fine). Visa overstay: ฿500/day fine.