Two coasts the monsoon never reaches at the same time, and a north seen through smoke in March
Thailand is chosen by coast rather than by month: the Andaman Sea and the Gulf of Thailand get their rains at different times, and the north has a third season, of smoke. So the question is which part of the country in which month — and two weeks cover Bangkok, the north and one coast, not both.
The Andaman Sea — Phuket, Krabi, Phi Phi and Khao Sok — takes the south-west monsoon from May to October, heaviest in September, so you go there from November to April. The Gulf of Thailand, with Samui, Phangan and Tao, gets most of its rain from October to December, peaking in November. If the sea falls in July or August, choose the Gulf; if it falls in December or January, the Andaman. The north, with Chiang Mai and Chiang Rai, has a trap of its own: from February to April the valley fills with smoke from burning fields and forest, thickest in March, and in April 2026 PM2.5 passed 300 micrograms in some districts, about ten times the Thai limit. Asthmatics and families with small children skip the north then; it is at its best from November to January.
Each place has its own page — what makes it worth the detour, and how long you need.
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The places on this site line up Bangkok — north — sea, with no backtracking. Ayutthaya is a day trip from Bangkok. Chiang Mai is about an hour by air or a night on the sleeper train, which takes twelve and a half hours and saves a hotel night. From the north to the sea you do not go back through Bangkok: Chiang Mai has direct flights to Phuket, about two hours. Phuket and Krabi are 160 kilometres apart by road, three to five hours, or linked by boat via Phi Phi, where you can step off and stay the night — so the islands become a stop on the way rather than a return trip.
Book the flight into Bangkok and home from Phuket: Istanbul, Doha and Dubai all fly direct to Phuket too, so the trip ends on the coast instead of with a ride back north. In Bangkok itself the trap is the two airports — international flights land at Suvarnabhumi, while most budget domestic routes leave from Don Mueang. The free shuttle between them carries only passengers with an onward ticket, takes about an hour and twice that at rush hour or in rain, so a change from one to the other is not planned as if it were the same airport.
Thailand counts years in the Buddhist Era, 543 years ahead of the Gregorian calendar, so 2026 is 2569 here. That is the year printed on receipts and official documents — a date that looks like a typo most likely is not.
Songkran is a public holiday from 13 to 15 April, in the hottest days of the year, and the streets turn into a three-day water fight; UNESCO added it to the intangible heritage list in 2023. For a visitor that means a phone in a waterproof pouch and the certainty that nobody stays dry.
Article 112 of the criminal code carries up to fifteen years for insulting the king, queen or heir, and it applies to foreigners and to social media posts alike. This is law, not folklore — you do not joke about the royal family.
The national anthem plays in public places at eight in the morning and six in the evening, and people stop where they stand. In cinemas the royal anthem plays before the film and everyone rises. A foreigner who stays seated will be noticed.
The fork is used to push food onto the spoon, and you eat from the spoon. Chopsticks come out only for noodles and Chinese dishes. This is not etiquette staged for guests but how people actually eat.
Buddhist temples here are religious and social centres at once, and most men spend a period as a monk at least once — sometimes weeks, sometimes months. Which is why there are monks in every temple at any hour.
This isn't a ranking — it's a route. Any one of these could carry a whole trip.
The first capital of the Siamese state, founded in 1238, a century before Ayutthaya, UNESCO-listed since 1991. For anyone who has seen Ayutthaya and wants the older capital, with temples scattered across a park you cycle through. It lies halfway to the north — train to Phitsanulok, then bus — so it is a night on the way to Chiang Mai rather than a day trip from Bangkok.
The bridge on the River Kwai and the Burma Railway, built under Japanese occupation by prisoners of war and forced labourers; the dead ran to tens of thousands. For anyone interested in the war in Asia: the cemetery and museum in town explain what the bridge itself does not. It is three hours west of Bangkok, so a day trip spends half its time in transit — a night leaves time to ride the railway too.
Rainforest around the man-made Cheow Lan lake, with limestone towers rising out of the water; you sleep in huts on floating rafts. It lies between the Andaman coast and the Gulf, which makes it the natural link for anyone with three weeks and both coasts in mind. If one coast is enough, Khao Sok is a two-day detour.
Two islands between Phuket and Krabi: Phi Phi Don, where you sleep, and uninhabited Phi Phi Le with Maya Bay. A night there makes sense because you see the island before and after the day boats from Phuket and Krabi. Anyone coming in August or September for Maya comes in vain — the bay is closed then.
The White Temple, Wat Rong Khun, is not a historic monument but an artwork under construction since 1997 and still unfinished. It is about three hours north of Chiang Mai by bus, so a day trip means six hours on the road. Chiang Rai has its own airport with flights to Bangkok, so the north can be done in one direction: arrive in Chiang Mai, leave from Chiang Rai.
Thailand is the only country in Southeast Asia never colonised by a European power. In the nineteenth century its kings ceded territory to both the British and the French so that the core of the state would stay free.
The name Thailand means land of the free and was adopted only in 1939; before that the country was Siam. The old name was even restored once, then changed back in 1949.
Short answers to what people ask most before setting out.
Within the 72 hours before arrival — the system does not accept it earlier. It is free on the official site, tdac.immigration.go.th, and the QR code it returns is shown at immigration. Personal details cannot be changed once submitted, so it is worth filing a day or two before the flight rather than at the gate.
Seven days cover Bangkok with Ayutthaya and one coast. Two weeks cover Bangkok for three days, the north for four and one coast for five or six, with a flight from Chiang Mai straight to the sea. Both coasts, with Khao Sok in between, take three weeks.
Phuket is a large island with a bridge to the mainland and the most international flights, so it is the better pick if you fly in or out there. Krabi is a coast of limestone cliffs, with Railay reachable only by boat, and it is closer to Phi Phi and the Hong islands. If the goal is a beach and a choice of hotels — Phuket; if it is cliffs, kayaks and islands — Krabi.
Keep going — these destinations and stories pair well with this one.
The whole of Thailand fits into one query — six questions and you know which of them suits you.
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All photographs come from Wikimedia Commons and are used under the licence stated beside each one.
