More than 600 people enjoyed the beach at Mangawhai with few other problems reported.
Whangarei Heads Volunteer Surf Lifesaving Patrol reported several hundred people at Ocean Beach with bathers well behaved and no rescues needed.
Dolphins kept beachgoers entertained at Ocean Beach on Saturday and Sunday and big surf provided some good waves for surfers.
Aleesha Mitchell, of Auckland, said she had been camping with her kids at Ruakaka Beach Holiday Park since Christmas but was heading back last night to start work this week.
The weather had been great as it had only rained two or three times in the month they had stayed, Ms Mitchell said.
MetService meteorologist John Law said temperatures have been very high, with many spots seeing the thermometer hitting the high twenties and even thirties.
The official high in Northland was 26C in Whangarei on Saturday, but with the official temperature recorded in a louvred, shaded box at Whangarei Airport, the real temperature will be much higher elsewhere.
"The subtropical origin of the air associated with this low pressure system means the warm temperatures, along with higher humidity, are set to stay with us this week," Mr Law said
Easterly swells associated with an area of low pressure to the north of the country are likely to make for some higher seas off the coasts of Coromandel and Northland.
The latest forecasts are available at metservice.com