From the Catholic Archdiocese of Wellington website 12 August 2020.

On Wednesday 12 August Cardinal John Dew sent a letter to parishes, schools, religious congregations about restrictions on public Masses during the three days of Alert Level 3 in Auckland and Alert Level 2 in the rest of New Zealand.
Key Points:
–    Public Masses (weekday, Sunday and for the feast of the Assumption) in the Archdiocese of Wellington are suspended until Tuesday 18 August when further information will be communicated depending upon the decisions the government has taken about Alert Levels.
–   Churches remain open for private prayer but information must be provided for contact tracing and social distancing observed.

The letter from Cardinal Dew is available here