Smoke was seen from around the city, with an Otumoetai resident reporting fine ash falling on his Grange Rd property.
On Sunday, two helicopters, three ground crews and two bulldozers were involved in the efforts.
Tauranga resident Rachael Garrett grew up on the island and said watching it burn was "devastating" and a "shock".
Garrett was on the island the day before the initial blaze with her in-laws who she had taken for a drive down the beach and she had mentioned that in all her years there had never been a fire.
"The very next day we had a fire, and that was devastating. I couldn't believe it."
On the Saturday the blaze reignited, and she headed out on the water and looked at where the fire had been the week prior and said there was no smoke.
"From the time it took for me to get from that side of the island, back up Hunter's Creek, all of a sudden there was a whole lot of smoke."
Within 40 minutes, the helicopters had arrived.
"I just found them absolutely amazing ... they were constantly going."
Matakana Island is also the home of the Department of Conservation's dotterel breeding programme.