The number of overseas visitors to Ireland increased by 6.6% to almost three million between April and June, when compared with the same period a year ago.
However, latest figures from the Central Statistics Office also indicate the average stay of overseas visitors has fallen from 6.6 nights to 6.3 nights over the same time-frame.
Despite this fall, tourism and travel revenue from visitors has risen by 5% to €1.97 billion.
The number of people travelling to Ireland either to visit friends/relatives or for a holiday rose in the second quarter of the year, but the number of business trips to the country saw a slight fall.
Commenting on the figures, Tourism Ireland Chief Executive Niall Gibbons said: "Particularly welcome is the continued strong performance from North America, with an increase of +11.4% in visitors and almost +10% in revenue; and from Mainland Europe, with growth of almost +10% in visitors and +12.7% in revenue.
"This means that spending by visitors from North America and Mainland Europe to Ireland has outpaced British visitor spend in the first half of the year. Tourism Ireland's market diversification strategy has prioritised North America and Mainland Europe as markets which offer a strong return on investment."
Mr Gibbons also pointed to "the recovery from Britain, with visitor numbers up +2% and revenue up almost +1%".
Between April and June the number of trips made by Irish residents overseas also increased - showing a 6.1% rise from 2.12m trips in Q2 2017 to 2.25m trips this year.
