The original analysis of long-term sea level change in New Zealand is updated with a new and extended analysis. In this new analysis the original hourly sea level data have been re-examined to remove obvious errors that were still present, new data covering the period 1989--2000 has been added, and the sea level record for Wellington extended by the inclusion of recently discovered data covering the years 1891--1893. These new results indicate that relative sea levels in New Zealand have been rising at an average rate of 1.6 mm/yr over the last 100 years - a figure that is not only within the error bounds of the original determination, but when corrected for glacial-isostatic effects has a high level of coherency with other regional and global sea level rise determinations. There continues to be no evidence of any acceleration in relative sea levels over the record period.