The Ann and James Ritchie II arrived on Saturday morning.
The £2.2 million Shannon lifeboat is the most advanced in the RNLI fleet.
A spokesman said it's safer and faster and designed to keep crew safer on shouts.
A formal naming ceremony and service of dedication will take place in early summer.
Schools won't reopen today
Circus to be K-pop themed
Post deliveries suspended because of snow
Schools closed this morning, with review later
Petition started to protect rights of immigrants
Airport runway closed by snow
Snowy morning brings travel disruption
Airport could see problems tomorrow