Will I have signal out at Howth and Malahide?

Yes. Both coastal villages have reliable 4G and 5G in the town and harbour areas. Expect only minor dips right at the exposed cliff edges on the Howth summit walk.

Can I activate the eSIM at Dublin Airport when I land?

Yes. Dublin Airport has excellent coverage, so you can scan the QR code and connect before you even reach the taxi rank or Aircoach stop. Set it up while still on Wi-Fi if possible.

County Dublin eSIM.

Name: County Dublin travel eSIM
Brand: My Holiday SIM

County Dublin: from Temple Bar's buzz to the cliff walk at Howth Head.

from $2.15/day · unlimited dataAll of Ireland →

Unlimited data5G where availableInstant QR by emailKeep your number

1 · How many days?

10 daysOther:days

2 · How much data?

3GBBest pricevalid 15 days$4.28$0.43/day

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

Travellers (one eSIM each)

1 × 3GB (valid 15 days) · 10-day trip$4.28

Good to know in County Dublin

Dublin's DART trains and Luas trams lose signal in short tunnels near the centre, so download your Guinness Storehouse or Book of Kells tickets to your phone before boarding rather than relying on live data.

Best time to visit County Dublin

May to September brings the mildest weather, long bright evenings and the buzz of summer festivals, while spring and autumn stay quieter for sightseeing.

Two simple ways to buy

County Dublin eSIM plans: unlimited, or by the GB.

Every County Dublin eSIM from My Holiday SIM is one of two straightforward types. Pick whichever fits how you travel in County Dublin — 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 County Dublin?

A rough, honest guide to sizing your County Dublin eSIM so you're not guessing. Most travellers in County Dublin 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

County Dublin eSIM: your local data guide.

Landing in County Dublin, you'll want live data the moment you leave the terminal - booking a Temple Bar table, checking DART times to Dun Laoghaire, or judging the Book of Kells queue at Trinity. A County Dublin eSIM keeps you connected across the city centre, the coastal villages of Howth and Malahide, and the seafront promenades at Dalkey.

One eSIM for County Dublin and all of Ireland. It's the national Ireland eSIM — from $2.15/day with unlimited data, working the same in County Dublin as it does the moment you leave it.

Landing at Dublin - Dublin Airport (DUB)?

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

County Dublin eSIM pricingbest-value plan · per day

Days

Per day

Total

Saving

3 days1GB

$0.54

$1.63

—

5 days1GB

$0.33

$1.63

−39%

7 days1GB

$0.23

$1.63

−57%

10 days3GBPopular

$0.43

$4.28

−20%

15 days3GB

$0.29

$4.28

−46%

30 days3GB

$0.19

$5.70

−65%

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

eSIM vs the old ways in County Dublin

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

County Dublin eSIM from $2.15/day — the whole bill, agreed before you fly.

Across the region

Where you'll lean on data in County Dublin.

Temple Bar & City Centre

Dense 5G across the cobbled streets, Grafton Street and the docklands makes maps, taxis and pub bookings instant.

Howth

The cliff-walk summit holds a decent 4G signal, though it can thin at the most exposed edges above the harbour.

Dun Laoghaire

Strong, steady coverage runs the whole seafront and along the DART line back into the city.

Phoenix Park

4G is solid near the zoo and main gates but noticeably thinner deep in the parkland away from the roads.

The practical bit

Getting around County Dublin on your eSIM.

Apps you'll want online in County Dublin

FREENOW— The dominant taxi-hailing app across Dublin - book licensed cabs and pay in-app.
TFI Live— Real-time bus, Luas tram and DART departures for all of Dublin.
Irish Rail— DART and commuter train times, plus tickets for trips beyond the city.
Leap Top-Up— Top up your Leap travel card by NFC straight from your phone.

How long to stay in County Dublin

Most visitors spend two to four days in County Dublin, enough for the city's museums and pubs plus a coastal day trip out to Howth or Malahide.

How much data for County Dublin

A balanced 3-5 GB comfortably covers a long weekend of maps, ride-hailing and social uploads; step up to Unlimited if you're streaming or tethering a laptop from your hotel.

Coverage in County Dublin

5G is excellent across Dublin city, the docklands and along the DART line; expect only minor dips inside Luas tunnels, deep within Phoenix Park or on Howth's exposed cliff paths.

Where you're headed

Discover County Dublin.

Gothic architecture of Christ Church Cathedral in Dublin on a sunny day.

Scenic view of Dublin's Ha'penny Bridge over the River Liffey amidst urban architecture and vibrant city life.

Vibrant scene of historic buildings and street life in Dublin, Ireland.

Stunning aerial shot of Dublin's Christ Church Cathedral, highlighting medieval architecture and cityscape.

Cities in County Dublin

Zoom in on County Dublin.

Dublin eSIM

How to activate your County Dublin 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 County Dublin

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

New to eSIM in County Dublin?

What is a County Dublin eSIM?

A County Dublin eSIM is a digital SIM that's already built into your phone. Scan one QR code and a local County Dublin 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 County Dublin.

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 Ireland.

5G where available, fast 4G everywhere else

Connected · 5G

Your eSIM joins Ireland'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.

Three Ireland
Vodafone Ireland
Eir

Popular places covered

DublinGalwayCorkKillarneyDingleKilkennyLimerick

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 County Dublin 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

County Dublin eSIM questions, answered.

Yes - you'll have strong data at every station and along most of the line, with only brief drops inside the short tunnels near the city centre. Download tickets in advance to be safe.

Your County Dublin 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 Ireland?