Is there signal climbing Croagh Patrick?

You'll have coverage at the base and car park in Murrisk, but it becomes patchy on the ascent and unreliable near the summit. Download anything you need and don't rely on live data on the climb.

Will it cover Westport and the Greenway?

Westport has strong, dependable coverage. The Great Western Greenway is mostly fine near the towns of Newport and Mulranny but has quieter stretches in between, so save the route offline before you cycle it.

County Mayo eSIM.

Name: County Mayo travel eSIM
Brand: My Holiday SIM

County Mayo: Croagh Patrick's pilgrim path, Achill's cliffs and Westport's streets.

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 Mayo

The Great Western Greenway from Westport to Achill has stretches with little signal between towns, so download the route and any e-bike return details before setting off, and treat Croagh Patrick's summit as fully offline.

Best time to visit County Mayo

May to September delivers the best weather for climbing Croagh Patrick, cycling the Great Western Greenway and reaching Achill's Keem Bay, with July's Reek Sunday pilgrimage a highlight.

Two simple ways to buy

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

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

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

County Mayo stretches from the pilgrim mountain of Croagh Patrick and lively Westport town to Achill Island's Atlantic cliffs and the Great Western Greenway cycling path. A County Mayo eSIM keeps route maps, tide times for Keem Bay and greenway bike bookings live as you explore a county whose wild coast and boglands often outrun the signal.

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

Landing at Knock - Ireland West Airport Knock (NOC)?

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

County Mayo 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 Mayo

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

Across the region

Where you'll lean on data in County Mayo.

Westport

This buzzing planned town has strong, reliable coverage across its octagon, bridges and riverside pubs.

Croagh Patrick

The pilgrim path gets patchy quickly; treat the higher slopes and summit as effectively offline.

Achill Island

Coverage varies by location - fine around Keel village but thinner at Keem Bay and the remote cliffs and Deserted Village.

Wild Nephin National Park

This remote Ballycroy wilderness and its dark-sky park see coverage largely disappear away from the main road.

The practical bit

Getting around County Mayo on your eSIM.

Apps you'll want online in County Mayo

TFI Local Link— Rural bus routes connecting Mayo's towns and villages.
Bus Eireann— Coaches to Westport, Castlebar and on to Galway and Dublin.
Irish Rail— Westport and Castlebar stations with direct trains to Dublin.
FREENOW— Taxi-hailing in Westport and Castlebar; rural cover is limited.

How long to stay in County Mayo

Two to four days covers County Mayo - Westport's pubs, a Croagh Patrick climb, the Great Western Greenway by bike and a full day out on Achill Island.

How much data for County Mayo

A balanced 3-5 GB handles navigation, greenway bookings and photos across a few days; save offline maps for Achill, Croagh Patrick and Wild Nephin where live data is unreliable.

Coverage in County Mayo

Westport and Castlebar have solid 4G, but Achill Island varies by location, Croagh Patrick's slopes are patchy, and the Wild Nephin wilderness in the north sees coverage largely disappear.

Where you're headed

Discover County Mayo.

Breathtaking view of the lush green cliffs and sandy beach on Achill Island, Ireland.

Breathtaking landscape view of Sligo, Ireland with a rainbow over lush greenery and rocky terrain.

Vibrant landscape featuring mountains, coastline, and serene waters in Ireland.

Serene beach scene in Mallaranny, Ireland, showcasing sandy shores, distant mountains, and vivid skies.

How to activate your County Mayo 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 Mayo

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

New to eSIM in County Mayo?

What is a County Mayo eSIM?

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

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 Mayo 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 Mayo eSIM questions, answered.

Coverage varies across the island. You'll have data around Keel and the main village, but it thins at Keem Bay, the Deserted Village and the higher cliffs. Download an offline map before exploring the western edges.

Your County Mayo 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?