Insist on the meter or use Grab
Bangkok taxis that refuse the meter and tuk-tuks quoting flat fares are charging several times the real price. Grab removes the negotiation entirely and shows the fare up front.
旅行ガイド最終更新 August 19, 2026
Thailand Travel Guide: Essentials, Local Tips & Mobile Data
Bangkok, islands and the north: money, transport, etiquette, when to go, curated traveler tips, and the easiest way to get mobile data.
Thailand remains Southeast Asia's great all-rounder: Bangkok's street food and temples, the jungles and hill towns of the north around Chiang Mai, and an island for every taste, from party-hard Phangan to sleepy Ko Lanta.
It is easy, affordable and welcoming, but rewards travelers who dodge the tourist-trap circuit: eat at busy street stalls, learn a polite wai and a few Thai phrases, and treat temples with covered-shoulders respect.
The heat is part of the deal, and so is the sweetness of the welcome. A wai, a smile, and not raising your voice will carry you further than any guidebook phrase. Temples are active religious sites, not backdrops — cover up, take the shoes off, and do not climb the ruins for a better angle.
Bangkok plus the north, or Bangkok plus one island group, is enough. Trying to 'do' the whole country in two weeks is how you spend your holiday in airports and minivans. Stay longer in fewer places. Thailand rewards the second week in a town you almost skipped.
基礎知識
Thailand の旅の基礎知識
- 通貨
- Thai Baht (THB). Cash-first for street food and markets; cards at hotels and malls.
- 言語
- Thai. English is common in tourist areas.
- コンセント
- Type A / B / C / O, 220V.
- 緊急番号
- 191 (police), 1155 (tourist police, English-speaking)
- ベストシーズン
- November to February: cool and dry season across most of the country.
- チップ
- Not expected. Rounding up or leaving small change is appreciated.
- タイムゾーン
- ICT (UTC+7)
- 水道水
- Drink bottled or filtered water; ice from bagged commercial sources is fine.
- 移動手段
- In Bangkok use the BTS/MRT and river boats to beat traffic. Grab (rideshare) works across cities; overnight trains and cheap flights cover long hops.
- インターネットとカバー範囲
- Fast, cheap mobile data almost everywhere, including most islands.
旅人のコツ
旅人からのコツ
Thailand を訪れた人の実体験を、出典リンク付きで当社が厳選しています。
Skip the gem shops and suit deals
Anyone telling you a temple is closed and offering an alternative tour is running the country's oldest scam, usually ending at a gem or tailor shop. Temples rarely close; walk to the entrance and check yourself.
Eat where the plastic stools are full
The best food is at street stalls and shophouses packed with locals at plastic tables. High turnover means fresh ingredients - a busy som tam stall beats an empty air-conditioned restaurant.
The king and the monarchy are not a joke
Lèse-majesté laws are real. Do not make jokes about the royal family, stand still for the anthem in cinemas and on the BTS, and treat portraits with the same respect locals do. It is the one topic that is never casual.
Songthaews and boats beat another taxi argument
Shared red trucks in the north and longtail boats in the south are how a lot of Thailand actually moves. Agree the price before you sit down, or use Grab in the cities and stop negotiating altogether.
よくある質問
Thailand の旅の疑問に答える
Should I buy a SIM at Suvarnabhumi airport or use an eSIM?
The AIS and True counters at Bangkok's airports work fine, but they add a queue and passport registration to your arrival. An eSIM installed before departure activates on landing, so you are ordering a Grab while others are still filling in forms.
Does my phone support eSIM in Thailand?
Yes for unlocked iPhone XS and newer, Pixel 3 and newer, and Galaxy S20 and newer. Check settings for an 'Add eSIM' option to confirm before you travel.
How much data do I need for two weeks in Thailand?
Grab rides, maps, translation and ferry bookings put most travelers at 1-2 GB per day, so 15-20 GB suits a two-week trip. Thai data is cheap, so unlimited plans cost little more if you stream or hotspot.
Is there mobile coverage on the Thai islands?
Yes - Phuket, Samui, Phangan, Tao and the Krabi coast all have good 4G, and even smaller islands like Ko Lanta stay connected in inhabited areas. Signal only really disappears on boat crossings and in national park interiors.
Do local Thai SIM cards require passport registration?
Yes, all Thai SIM purchases legally require passport registration at the point of sale. An eSIM bought online skips the process entirely, which is one of the main reasons travelers choose it.
eSIM プラン
Thailand でつながる
Grab rides, island ferry bookings and translation apps make data essential in Thailand from hour one. A Thailand eSIM costs pocket change, activates before you land in Bangkok, and saves the arrivals-hall SIM queue after a long flight.
Island ferries change, Grab drivers need a pin, and the best stall is always three alleys over. An eSIM is the cheapest insurance in Thailand — and it means you never have to find a phone shop on an island when the plan goes sideways.
