Will I have data during the Koh Phangan Full Moon Party?

Around Haad Rin the network is usable but heavily congested on party nights, as thousands of phones compete. Send messages early, agree a meeting point with friends, and don't rely on live maps once the beach fills up.

Is there coverage for diving on Koh Tao?

On land around Sairee and Mae Haad you'll have 4G for booking courses and uploading photos. Signal fades offshore at the dive sites, so download your dive-school briefings and boat times before you head out.

Surat Thani eSIM.

Name: Surat Thani travel eSIM
Brand: My Holiday SIM

Gateway to Koh Samui, Koh Phangan and Koh Tao - the Gulf's island paradise

from $3.14/day · unlimited dataAll of Thailand →

Unlimited data5G where availableInstant QR by emailKeep your number

1 · How many days?

10 daysOther:days

2 · How much data?

3GBBest pricevalid 15 days$6.80$0.68/day

Cheapest plan covering your trip: 3GB, valid 15 days.

Travellers (one eSIM each)

1 × 3GB (valid 15 days) · 10-day trip$6.80

Good to know in Surat Thani

Island ferry crossings from Donsak can lose signal mid-route, so screenshot your e-ticket QR and the pier's departure board before boarding - and note that Koh Tao's occasional power cuts can knock out local towers.

Best time to visit Surat Thani

Visit February to April for calm Gulf seas and reliable ferries; the islands see their heaviest rain from October to December.

Two simple ways to buy

Surat Thani eSIM plans: unlimited, or by the GB.

Every Surat Thani eSIM from My Holiday SIM is one of two straightforward types. Pick whichever fits how you travel in Surat Thani — you can always top up or switch on your next trip.

Traveller streaming and browsing freely on an unlimited-data travel eSIM

Unlimited plans

High-speed data, nothing to count

Priced per day — the longer you stay, the better the daily rate. Ideal for streaming, hotspot and longer trips where you'd rather not watch a data meter. A fair-use policy keeps speeds fast for everyone; see each plan for the detail.

Best for streaming, video calls & hotspot
Great for longer or open-ended trips
One price per day — no GB anxiety

By-the-GB plans

3GB10GB20GB

A set bundle, brilliant value

A fixed data allowance (say 3 GB or 10 GB) valid for your travel days. The best-value pick for lighter trips built around maps, messaging and a bit of browsing. Running low? Top up in a couple of taps — nothing to reinstall.

Best value for lighter, shorter trips
Clear allowance — pay only for what you need
Top up any time from your phone

Compare plans →Not every destination has both types — the picker shows what's available where you're headed.

Plan your data

How much data do you need in Surat Thani?

A rough, honest guide to sizing your Surat Thani eSIM so you're not guessing. Most travellers in Surat Thani are comfortable on 3–5 GB a week — heavy streamers just go Unlimited.

Traveller checking maps and messages on her phone using a My Holiday SIM eSIM

Not sure? Start with a 5 GB plan — you can top up in seconds if you run low.

Light

~1 GB / week

Maps, messaging & email

Google Maps, WhatsApp, email and the odd search. Plenty for a city break where you mostly need directions.

Suits 1–3 GB plans

Balanced

3–5 GB / week

Everyday holiday use

Everything above plus social scrolling, music, cloud photo backups and a little video. Where most travellers land.

Suits 5–10 GB plans

Surat Thani eSIM: your local data guide.

Most visitors treat Surat Thani as a springboard to the Gulf islands, but the province rewards data all the way - from ferry timetables at Donsak pier to booking a Full Moon Party boat off Koh Phangan or a dive briefing on Koh Tao. A Surat Thani eSIM keeps you connected from the mainland railway town out to Ang Thong Marine Park.

One eSIM for Surat Thani and all of Thailand. It's the national Thailand eSIM — from $3.14/day with unlimited data, working the same in Surat Thani as it does the moment you leave it.

Landing at Surat Thani (URT) - with Samui Airport (USM) serving the islands directly?

Install the QR at home, then switch the eSIM on as you taxi in — you're online before you reach the arrivals hall.

Surat Thani eSIM pricingbest-value plan · per day

Days

Per day

Total

Saving

3 days1GB

$0.67

$2.00

—

5 days1GB

$0.40

$2.00

−40%

7 days1GB

$0.29

$2.00

−57%

10 days3GBPopular

$0.68

$6.80

—

15 days3GB

$0.45

$6.80

−33%

30 days5GB

$0.26

$7.71

−61%

Each trip length shows the best-value plan that covers it. Total always shown before you pay.

eSIM vs the old ways in Surat Thani

eSIM

ROAMING

AIRPORT SIM

Data allowance

Unlimited

Usually capped

Rarely unlimited

Price known upfront

Prepaid

Billed after

Varies at the desk

Ready when you land

Instantly

After the queue

Keep WhatsApp number

SIM swapped

Surat Thani eSIM from $3.14/day — the whole bill, agreed before you fly.

Across the region

Where you'll lean on data in Surat Thani.

Koh Samui

Chaweng and Bophut have solid 4G/5G, so streaming, ride bookings and hotel check-ins are effortless across the island.

Koh Phangan

Signal is strong around Thong Sala and Haad Rin, but expect it to dip on remote northern beaches like Bottle Beach.

Koh Tao

Dive-shop areas around Sairee Beach stay connected, though data thins on the quieter east-coast bays.

Ang Thong Marine Park

Coverage is patchy across this archipelago, so download maps and boat schedules before you sail from the mainland.

The practical bit

Getting around Surat Thani on your eSIM.

Apps you'll want online in Surat Thani

Grab— Thailand's main ride-hailing and delivery app; reliable for taxis and food on Koh Samui and in town.
Lomprayah— High-speed catamaran operator; book and track ferry crossings to Koh Phangan and Koh Tao.
12Go Asia— Books ferries, buses and train-plus-boat combos linking the mainland to all three Gulf islands.
LINE MAN— Popular food-delivery super-app, handy for meals to your Samui or Phangan accommodation.

How long to stay in Surat Thani

Most travellers spend five to ten days here, splitting time between one or two islands - typically Koh Samui plus Koh Phangan or Koh Tao.

How much data for Surat Thani

A balanced 3-5 GB covers most island trips - maps, ferry apps, messaging and photo sharing. Choose Unlimited if you'll stream, video-call home or hotspot a laptop from the beach.

Coverage in Surat Thani

4G and 5G are strong across Koh Samui and the main island towns, but coverage thins on remote northern beaches, at sea between islands and across the Ang Thong marine park.

Where you're headed

Discover Surat Thani.

Stunning sunset view over Khao Sok's mountains and lake, Thailand.

A breathtaking aerial shot capturing the lush coastline of Koh Samui, Thailand, with turquoise waters and vibrant greenery.

Tranquil seascape with fishing boat in Surat Thani, Thailand, under bright clouded sky.

A scenic view of a longtail boat on Cheow Lan Lake in Khao Sok National Park, Thailand.

Cities in Surat Thani

Zoom in on Surat Thani.

Koh Samui eSIM

How to activate your Surat Thani eSIM.

Full installation guide →

A traveller happily planning her next trip with a map and phone

Buy your plan

Choose your days — the QR code arrives by email in seconds.

A traveller installing her eSIM from the sofa in two minutes

Install at home

Scan the QR on Wi-Fi before you fly. About two minutes, no app needed.

Friends laughing together while packing for a holiday

Fly relaxed

Nothing counts down yet — your days start only at first connection.

A joyful family reunion at the airport arrivals hall

Switch on in Surat Thani

Turn the line on when you land. Connected before baggage claim.

New to eSIM in Surat Thani?

What is a Surat Thani eSIM?

A Surat Thani eSIM is a digital SIM that's already built into your phone. Scan one QR code and a local Surat Thani data plan installs alongside your home SIM — no plastic, no tray tool, no swap. Your number and WhatsApp stay exactly where they are.

✓ 2-minute install✓ Keep your number✓ Works on phones from 2018+

How eSIM works →Check my phone

A traveller with a backpack smiling at her phone — online abroad with My Holiday SIM

Connected · 5G

Home SIM · calls & WhatsAppHoliday eSIM · unlimited data

30-day refund promiseUnused, uninstalled eSIM? Full refund, no questions.

The price is the billPrepaid and final — roaming charges can't happen.

Days start when you landInstall early with zero pressure; counting begins at first connection.

Humans, 24/7Real people answer, before, during and after the trip.

Why travellers choose My Holiday SIM for Surat Thani.

Instant eSIM deliveryQR code in your inbox seconds after checkout — even at the departure gate.

No physical SIMNothing to collect, lose or poke out with a paperclip. Your home SIM stays put.

Keep your WhatsApp numberData flows through us; WhatsApp stays on your home number. Family always reaches you.

A traveller at the departure gate, eSIM ready on her phone

eSIM ready in ~2 minutes

No bill shock, everOne clear price before you fly. Roaming charges simply can't happen.

Secure paymentsCards, Apple Pay, Google Pay, PayPal and Klarna — encrypted end to end.

Real human supportReal people — before, during and after your trip. Live chat and email, no bots. Easy top-ups too.

Coverage in Thailand.

5G where available, fast 4G everywhere else

Connected · 5G

Your eSIM joins Thailand's partner networks automatically — no settings to choose, no manual network hunting. If signal drops in a remote spot, toggling Airplane Mode for a few seconds forces a fresh connection.

AIS
TrueMove H
dtac

Popular places covered

BangkokPhuketChiang MaiKrabiKoh SamuiPattaya

Keep data roaming ON for the eSIM line only — that's the switch travel eSIMs use, and it never adds charges on our plans.

Trusted networks, honest numbers.

No invented star ratings behind your Surat Thani eSIM — just the numbers we actually stand behind.

Friendly globe with location pins — coverage on every continent

My Holiday SIMSTAY CONNECTED. ANYWHERE.

200+

destinations — every continent covered

regions covered by a single regional eSIM

~2 min

typical install — QR to connected

Live

chat & email support

Before you fly

Surat Thani eSIM questions, answered.

Yes. It is the single national Thailand plan, so the same eSIM connects you in Surat Thani town and on Koh Samui, Koh Phangan and Koh Tao - roaming onto AIS, TrueMove H or dtac wherever you land.

Your Surat Thani eSIM glossary.

eSIMA SIM built into your phone's hardware. Plans install onto it digitally — no plastic card involved.

QR profileThe code we email you. Scanning it downloads your holiday plan onto the eSIM. One scan per device.

Data roaming (the switch)The toggle travel eSIMs use to join partner networks abroad. On our plans it never adds charges — keep it ON for the eSIM, OFF for your home SIM.

Hotspot / tetheringSharing your phone's data with laptops and tablets. Included on our plans wherever networks allow.

Top-upExtra days added to a live plan from your account. They append to the end — nothing overlaps.

First connectionThe moment your eSIM first joins a network at the destination — that's when your days start counting, not before.

Travelling wider in Thailand?