Ireland’s consumer price momentum weakened in May 2026, with the country’s month‑over‑month Consumer Price Index (CPI) slipping into negative territory. According to data updated on 11 June 2026, prices fell by 0.1% in May compared with April, marking a reversal from the previous month’s rise.
In April 2026, Irish CPI had increased by 0.5% month‑over‑month, indicating a relatively brisk pace of price growth at the time. The May 2026 reading of -0.1% therefore represents a clear cooling in short‑term inflationary pressures, as measured by the change from one month to the next.
The figures are based on a month‑over‑month comparison, where the “actual” value reflects the change in May prices versus April, while the previous reading captures April’s change relative to March. This shift from a 0.5% gain to a 0.1% decline suggests that, at least on a monthly basis, Ireland has moved from moderate inflation to a slight bout of deflation at the start of the summer period.