"She loved the summer. She loved the beach. She was a real summer girl. She didn't like the winters in England."
Emily and her family moved to New Zealand when she was 10 and she attended Hauraki School, Westlake Girls High and Takapuna Grammar. She was a member of the rowing team and appeared as a model in Creme magazine.
"Emily had a real presence about her," Mr Longley said. "You can't really describe it. She walked into a room and you knew it. We're all really missing that warm, enthusiastic kind of presence."
Emily's 18th birthday would have been next month, which made the season doubly difficult, he said.
"She was going to come back here so she could have some of the summer here.
"She was desperate to get to 18.
"I've got Hannah and I want to make it nice for her still."
The family missed being around Emily, Mr Longley said.
Tributes are still being posted on to Emily's Facebook page almost daily.
Her former boyfriend, Elliot Turner, 20, has been charged with murdering her. He appeared in the Winchester Crown Court in England in October and pleaded not guilty.
His trial is set to start in April, and Mr Longley plans to travel to Britain to attend.
Emily had been staying with her grandparents in Bournemouth, south England, while continuing her studies there.