How to prepare for your trip to Thailand? The Complete Guide

Are you planning your trip to Thailand? 🇹🇭

So let me guess: you're not quite sure where to start, right?

👉 When to go, how long to stay, how much to budget...

👉 How to get internet access, where to stay, what to visit in Bangkok, Chiang Mai, or on the islands...

In short, organizing a trip to Thailand can quickly become a real headache (especially when you have to juggle between the monsoon season, the Andaman Sea islands, and the Gulf of Thailand 😅).

But don't worry: here you'll find a comprehensive guidethat's simple and practical, to help you plan everything without stress.

And above all, stay tuned until the end 👀: I'm going to share with you my tips tested directly on site, tips you won't find anywhere else, ones that will save you hassle, save you time, and help you get the most out of your stay.

Ready? Let's go 🇹🇭

Photo of Rony

Rony

2025-10-25

15 min read

Map of Thailand

When to go to Thailand?

Choosing the right time of year is key if you want to enjoy the beaches and temples without suffering from the weather. The climate is tropical, with three main seasons that vary depending on the region.

Cool and dry season (November to February): The best time for most travelers: milder temperatures, often clear skies, calm seas. Ideal for Bangkok, the north (Chiang Mai/Chiang Rai), and the Andaman coast (Phuket, Krabi, Koh Lanta).

Hot season (March to May): It is very hot, Bangkok can be stifling, but it's great for the islands if you can handle the heat. Plan for breaks in the shade and morning visits.

Rainy season (roughly May/June to October): Frequent showers (often at the end of the day) but travel is still possible. Be aware of the differences:

  • • Andaman Coast (Phuket, Krabi, Koh Lanta): peak rainfall in Sept.-Oct.
  • • Gulf of Thailand (Koh Samui, Koh Phangan, Koh Tao): weather is often milder in summer, but the wettest period is from October to December.

💡 My advice: if you're aiming for Koh Samui/Koh Phangan, summer can be a good option. For Phuket/Krabi, November-March is best.

How long should I stay in Thailand?

The ideal length of your stay depends on your budget, the season, and what you want to experience (culture, nature, beaches, food tours, etc.).

1 week: doable but tight. Focus on Bangkok (temples, markets, rooftops) + a quick getaway: Ayutthaya (UNESCO) or 2-3 days on an island (Phuket/Krabi or Samui depending on the season).

2 weeks: the ideal length of time. Combine Bangkok → North (Chiang Mai/Chiang Rai) for culture, temples, and cuisine, then a few days on the islands to finish in style (Koh Lanta/Krabi or Samui/Koh Tao depending on the weather).

3 weeks or more: complete itinerary. Add national parks (Khao Sok), wilder islands (Koh Yao, Koh Libong, Koh Phayam), villages and rice fields around Pai, and why not a wellness break (massages, cooking classes, yoga retreat).

How much should I budget for a trip to Thailand?

It's difficult to give a single figure: it all depends on the season, your internal journeys, and your travel style. But here are some clear guidelines 👇

  • • Average budget: $70 to $100 per day per person (accommodation, meals, transportation, visits).
  • • For 2 weeks: expect $1,400 to $2,200 per person, including round-trip airfare (varies depending on the season).

Practical information:

  • Small budget: hostels/guesthouses, street food, bus/train. 35-60 € / day.
  • • Comfort: 3-star hotels, local restaurants + 1-2 domestic flights. $70-110 per day.
  • • Premium: 4-star and above hotels, private experiences, speedboat, spas. $120-$180+ per day.

The most expensive items will be flights (often €600-900 return from France, more in peak season) and the most touristy islands. As for food, street food is delicious and very affordable: €2-6 for a local meal, €8-15 in a good restaurant.

What administrative documents are required?

Good news: for French travelers (and most European nationals), no visa is required for tourist stays of less than 30 days.

👉 You just need to have:

  • a valid passport valid for at least 6 months after the date of entry,
  • a ticket to leave the country (return flight or bus),
  • and sometimes proof of accommodation for the first few days.

💡 If you wish to stay longer than 30 days, you can either request a 30-day extension directly at an immigration office, or apply for a tourist visa (60 days, extendable once) before your departure.

⚠️ Always check the latest conditions before your trip: rules may change (especially after the high season).

How can I get internet access in Thailand?

It's impossible to imagine a trip to Thailand without the internet—between Google Maps, Grab (the local Uber), hotel reservations, and translating menus, you'll need it every day 📱

💡 The simplest and most convenient solution is the eSIM. Install it before you leave, activate your data plan as soon as you arrive at the airport, and in 30 seconds... you're connected.

👉 Advantages:

  • No need to search for a counter or wait in line to purchase a local SIM card.
  • You keep your French number.
  • You enjoy excellent 4G/5G coverage across the country, even on the islands.

In Thailand, the network is reliable and fast, particularly with operators AIS, DTAC, and TrueMove.

Why choose eSIM?

We have developed our own eSIM designed specifically for your trip to Thailand:

Unbeatable price: 20 GB for only $14.80

Reliability tested on site: no network issues in Thailand

No blocked apps: TikTok, WhatsApp, banking apps... everything works.

Connection sharing included: convenient for your computer or tablet

Responsive French-speaking customer service: no more automated responses in English

Money-back guarantee in case of problems

Do I need an adapter for the sockets?

Good news: you don't necessarily need an adapter if you're coming from France 🇫🇷 In Thailand, the outlets are type A, B, and C. 👉 European two-pin plugs (type C) fit into most outlets without any problems.

⚡ The voltage is 220 V and the frequency is 50 Hz, so it is fully compatible with our European appliances.

💡 Personal tip: bring a compact power strip or multi-USB charger, as hotel rooms often only have one or two wall outlets. And if you plan to travel to rural areas or remote islands, a small power bank can save the day.

What types of accommodations?

The choice of accommodation in Thailand is vast — from beachfront bungalows to designer hotels in the heart of Bangkok.

Here's an overview to help you choose according to your style 👇

Modern hotels

Found everywhere (Bangkok, Chiang Mai, Phuket, etc.), they offer excellent value for money.

Even the 3★ are often very clean, comfortable, and well located.

Some offer rooftops or swimming pools with breathtaking views for less than $42.50 per night.

Modern hotel

Bungalows and resorts

It's the perfect option for enjoying the beaches 🏝️

The bungalows are often simple but charming, located by the sea, and available on almost all islands (Koh Lanta, Koh Tao, Koh Samui, Koh Phangan…).

💡 My advice: book in advance for December-February, as it's peak season.

Bungalow

Guesthouses and hostels

Perfect for those on a tighter budget or backpackers.

You can find them everywhere, often with a family atmosphere, friendly staff, and homemade breakfasts.

Some hostels are real little gems of design for $50-10-15 per night.

Guesthouse

Unusual accommodations

Want a unique experience?

Try spending a night in a jungle cabin (Khao Sok), an eco-lodge by the river (Pai), or glamping with a view of the rice fields.

It's a wonderful way to discover Thailand differently, far from mass tourism.

Unusual accommodation

Where to stay in Bangkok?

It all depends on your preferred atmosphere 👇

Sukhumvit: modern, lively, perfect for restaurants and bars.

Siam / Pratunam: great for shopping and large malls.

Old Town (Rattanakosin): ideal for visiting temples and the Grand Palace.

Ari: a more local neighborhood that is both trendy and quiet.

💡 My advice: avoid Khao San Road if you want a good night's sleep—it's the backpacker area, and very lively at night.

How do I pay and withdraw money?

Thailand remains very attached to cash, even though card payments are becoming more common 💳

Withdraw money

You will find ATMs everywhere (airports, 7-Eleven, tourist areas). ⚠️ Withdrawals from foreign cards almost always incur a fixed fee of around 220 THB (€6) per transaction. 👉 Tip: make one large withdrawal rather than several small ones to avoid cumulative fees.

ATMs accept Visa, Mastercard, Revolut… Look for the words "ATM International" or "Foreign Card Accepted."

Exchange money

There are many currency exchange offices, and they are very competitive, especially in Bangkok (Pratunam or Sukhumvit districts). 💡 The best rates are often found at SuperRich (the orange or green chain).

Card payment

Visa/Mastercard cards are accepted in most hotels, restaurants, and shopping centers. However, for markets, stalls, taxis, or small restaurants, always carry some cash.

💡 My advice: keep the equivalent of 100 to 150 € in baht for small expenses and activate your overseas payments before you leave.

What vaccinations and health precautions are recommended?

Good news: no vaccinations are required to travel to Thailand. However, certain precautions are strongly recommended depending on your itinerary.

Up-to-date basic vaccinations:

  • Diphtheria, tetanus, polio (DTP)
  • Whooping cough
  • Hepatitis B
  • Measles, mumps, rubella (MMR)

Recommended vaccines for certain travelers:

  • Hepatitis A: highly recommended, as contamination can occur through food.
  • Typhoid: useful if you are traveling for a long time or frequently eat street food.
  • Rabies: for extended stays, or if you plan to be around animals (especially in rural areas).
  • Japanese encephalitis: recommended if you are staying in the countryside for several weeks during the rainy season.

💡 Other precautions:

  • Always drink bottled water (and check the seal).
  • Avoid ice in rural areas.
  • Bring a basic first aid kit (mosquito repellent, bandages, paracetamol, etc.).

Thailand has an excellent healthcare system, particularly in Bangkok, Chiang Mai, and Phuket, with modern hospitals and English-speaking staff.

Should you take out insurance?

It is not mandatory, but highly recommended

Why? Because in the event of a problem (scooter accident, infection, lost luggage, etc.), costs can quickly add up.)

Please note:

  • A consultation costs approximately $116-$125.
  • Hospitalization can exceed $300 per day.
  • And repatriation can cost up to several thousand euros.

👉 Travel insurance will cover you for:

  • 🏥 Medical care
  • 🚑 Emergencies and hospitalizations
  • ✈️ Repatriation
  • 🎒 Loss or theft of luggage

💡 My advice:
Check whether your premium credit card (Gold, Premier, etc.) already includes travel insurance.
If not, expect to pay $30 to $60 for two weeks of dedicated insurance. It's a small investment for peace of mind while traveling.

What customs rules apply?

Nothing too complicated, but a few things to keep in mind ✈️

You can import personal effects and up to:

  • 200 cigarettes or 250 g of tobacco,
  • 1 liter of alcohol,
  • and reasonably priced souvenirs.

Please note:

  • The importation of electronic cigarettes (vapes) is prohibited — even for personal use. The authorities may confiscate your equipment and impose a fine.
  • Medications containing opioids, sleeping pills, or tranquilizers must be accompanied by a medical prescription.

How to get around Thailand?

Good news: Thailand is one of the easiest countries to travel around in Southeast Asia 🇹🇭 Transportation is varied, affordable, and well organized.

🚆 Trains

An excellent way to discover the country.

The main lines connect Bangkok to Chiang Mai, Ayutthaya, Surat Thani, Hua Hin, etc.

It's slow but picturesque: perfect if you want to admire the scenery and enjoy a local experience. 💡 You can book your tickets online at 12GoAsia or ThaiRailways.

🚌 Intercity buses

Very frequent and economical. You will find "VIP" buses with reclining seats, air conditioning, and Wi-Fi between major cities (Bangkok ↔ Chiang Mai / Phuket / Krabi, etc.). Night buses allow you to save on a night's hotel accommodation.

✈️ Domestic flights

Ultra-practical for saving time:

  • Bangkok - Chiang Mai: 1 hour
  • Bangkok - Phuket: 1 hour 20 minutes
  • Bangkok - Krabi: 1 hour 15 minutes

👉 Reliable local airlines: Thai Smile, AirAsia, Nok Air, Bangkok Airways.

🚕 Taxis and apps

Taxis are cheap, but in Bangkok, always ask for the meter. Otherwise, download Grab (the local equivalent of Uber), which is more reliable and transparent.

🚤 Ferries and speedboats

Essential for traveling between islands. ⚠️ Remember to book the day before during high season. 💡 Journeys often combine bus and ferry (e.g., Bangkok → Koh Tao via Chumphon).

What are the main customs in Thailand?

Thailand is nicknamed "the land of smiles," and for good reason 😄 Thai people are welcoming, polite, and very respectful—as long as you are too.

Respect above all else

  • We greet with the “wai” (palms pressed together in front of the chest, head slightly bowed).
  • Never touch someone's head, even a child's (considered sacred
  • Avoid pointing your feet at someone or a Buddha statue.

🕍 In temples:

  • Wear appropriate clothing (shoulders and knees covered).
  • Take off your shoes at the entrance.
  • Never turn your back on a Buddha for a photo.

🍚 Let's eat:

  • Do not stick your chopsticks or spoon into the rice.
  • Wait until everyone has been served before you start eating.
  • We often eat with a spoon + fork (the fork is only used to push food around).

💬 In public:

  • Avoid sudden movements or raising your voice.
  • Public displays of affection (kissing, cuddling) are rare.
  • And above all: never criticize the monarchy — it's an extremely sensitive subject.

What should you know about Thai culture?

Thailand is a fascinating blend of spirituality, gastronomy, nature, and modernity.

🍜 Cuisine and street food

Thai cuisine is an experience in itself. Each region has its own specialties, but here are the must-try dishes:

  • Pad Thai: stir-fried noodles with shrimp or chicken.
  • Som Tam: spicy green papaya salad.
  • Massaman Curry: a mild curry with Muslim influences.
  • Tom Yum: spicy lemongrass and shrimp soup.
  • Mango Sticky Rice: dessert made with sticky rice and mango 🥭

💡 Eat local! A street food dish for $181 is often much better than a tourist restaurant for $183.

🎭 Cultural experiences

Attend a traditional dance performance in Chiang Mai or Bangkok.

Discover a floating market (Damnoen Saduak, Amphawa).

Try a Thai massage at a local spa (it's life-changing).

Take a cooking class to learn how to prepare your favorite dishes.

🏝️ Must-see sites:

  • Bangkok: Wat Pho, Wat Arun, Grand Palace.
  • Chiang Mai: Old town, Buddhist temples, night market.
  • Krabi / Phuket / Koh Lanta: beaches and diving.
  • Koh Samui / Koh Tao: island atmosphere and turquoise waters.
  • Ayutthaya & Sukhothai: ancient royal capitals listed by UNESCO.

What useful phrases should you learn?

  • Hello → Hello (Sawatdee)
  • Thank you → Thank you (Khop khun)
  • Yes / No → ใช่ / ไม่ใช่ (Yes / No)
  • How much does it cost? → What is the price?
  • Where is…? → Where are you?
  • Do you speak English? → Can you speak English?
  • It's delicious! → Very tasty (A-roi mak)
  • Goodbye → Laa gòn
  • No problem → Mai pen rai (Never mind)

How to prepare for your trip to Thailand with peace of mind with the Voilà Guide

As you can see, planning a trip to Thailand requires a bit of organization in terms of the season, transportation, accommodation, and local customs. But don't panic: we've simplified it all for you!

👉 That's exactly why we created voilà, a solution designed for travelers like you who want to enjoy the country to the fullest without getting bogged down in the details.

With this, you will find:

  • 📱 Our Thailand eSIMs: Get connected immediately upon arrival, without a physical SIM card, without blocked apps, and with responsive French-speaking support.
  • 🎒 Our practical advice: Tips tested in the field to avoid tourist traps and enjoy authentic Thai culture.
ko

SOUTH KOREA

active

20 Go

remaining

Operator

SKTelecom, LGU+

Expires

In 3d • Jun 12

Top up

th

THAILAND

active

20 Go

remaining

Operator

AIS

Expires

In 3d • Jun 12

Top up

ja

JAPAN

active

20 Go

remaining

Operator

NTT docomo

Expires

In 3d • Jun 12

Top up

No more roaming fees

Travel abroad with confidence: no more roaming fees, connection struggles, or unexpected top-ups. With a travel-friendly eSIM, stay connected everywhere, stress-free and surprise-free.

voilà icon

Frequently Asked Questions

Photo of Rony
Rony

Rony is our in-house travel-connected expert. Always curious and never too far from an airport, he explores the latest destinations while testing the newest eSIM solutions. He signs our articles on travel and mobile technology, with a single mission: to turn his discoveries into clear, reliable, and smart advice to accompany you anywhere in the world.