He said some students may have been affected and they had been asked to contact the school immediately if they had concerns in the wake of a poor night's sleep.
It was however business as usual and a science exam had got under way on schedule.
A Havelock North High School spokesperson said it was "exams as normal" but also stressed there was the emergency derived grade process available if anyone required it.
Some pupils lived at Te Awanga and Haumoana so that option was there if they had endured a sleepless night and were not to taking an exam.
Lindisfarne Rector Ken MacLeod said apart from the postponement of the scholarship examinations "rest will go on" but added the derived grade process was also available.
"But I don't think there has been any major impact on our kids although some will be affected by the postponement of the scholarships."
There was no indication at this stage when they would eventually take place.
Mr MacLeod said the scholarship exams had been scheduled to begin at 9.30am and notice of postponement only came through just before 9am.
However, he said with so much having happened, especially in Wellington where the NZQA is based, it was not unexpected "under the circumstances".