Lockdown level 2 restrictions mean social distancing and gatherings restricted to fewer than 100 people until Friday, August 14.
Tourism Industry Aotearoa advocacy manager Steve Hanrahan said it was too early to determine the threat to the sector at this stage as Level 2 was only for three days at the moment.
"It is certainly tough for tourism businesses if this does occur".
TIA was monitoring the situation and planning internally what scenarios and responses may be required.
With New Zealand's goal in recent months to promote domestic tourism, Hanrahan was unsure right now if it would reverse all the work that had been done.
The next step was to wait and see what movement New Zealanders were allowed.