Thailand (islands & Bangkok)
Thailand is the easiest first trip in Southeast Asia and still one of the most rewarding: a chaotic, delicious capital, limestone islands in impossibly clear water, and an infrastructure that makes moving between them almost effortless.
November–March lands in winter for Thailand (islands & Bangkok): warm, sunny weather ideal for the coast; prime hiking and outdoor season with the trails and passes open; calm seas and swimmable water.
Bangkok, properly
Give Bangkok three days rather than treating it as a transit stop. The Grand Palace and Wat Pho are best at opening time; cross the river to Wat Arun and wander the lanes of Thonburi. The Chao Phraya express boats and the BTS Skytrain beat taxis in traffic every time.
Eat constantly: boat noodles at Victory Monument, Chinatown's Yaowarat street stalls after dark, and one splurge at a rooftop or a Michelin-listed Thai kitchen. Markets. Chatuchak at weekends, Or Tor Kor for produce: are worth planning a morning around.
Choosing your islands
The Andaman side (Phuket, Krabi, Railay, Koh Lanta, Koh Phi Phi, Koh Yao Noi) has the classic karst scenery, the best diving and snorkelling and a dry season from November to April. Railay and Koh Yao Noi are the calmer choices; Phuket is the transport hub rather than the highlight.
The Gulf side (Koh Samui, Koh Phangan, Koh Tao) runs on an opposite weather pattern, staying reasonably dry from roughly January to September and getting its heaviest rain in October and November. Koh Tao is the cheapest place in the world to learn to dive; Koh Phangan has both the Full Moon Party and very quiet northern bays.
Don't try to combine both coasts in one short trip: pick a side, and pair one busy island with one quiet one.
A workable two-week route
Three nights Bangkok → fly to Krabi → two nights Railay for climbing and beach → four nights Koh Lanta for slow days and island-hopping day trips → three nights Koh Yao Noi or back to Phuket for the flight home. Domestic flights are frequent and inexpensive; ferries connect everything in season.
If you have longer, add Chiang Mai and the north for mountains, temples and cooking schools, or continue overland to Angkor Wat in Cambodia, the two pair naturally in a month-long trip.
Practicalities & etiquette
Fly into Bangkok Suvarnabhumi (BKK) or Don Mueang (DMK) for budget carriers. Most Western nationalities get visa-free entry for short stays; check current rules before booking. Bring reef-safe sunscreen, and use apps like Grab for fair taxi pricing.
Dress modestly at temples (shoulders and knees covered), never touch anyone's head, and treat images of the King and the Buddha with respect. Drink bottled or filtered water, and be cautious with scooter rental: accidents are the single most common problem travellers hit here.
When to go & what it costs
November to March is the reliable window for Bangkok and the Andaman coast: dry, sunny and less humid, with December and January the busiest and priciest. April is scorching but includes Songkran, the water-fight new year.
Thailand is superb value. Two people can travel comfortably on roughly $70-130/day with good guesthouses, street and restaurant food, ferries and day trips; luxury resorts push that far higher without much effort.
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