Investigators closed off a section of 10th Avenue, between Alohea and Maunalei, just after noon today.
A 911 call sent police and an ambulance to the accident scene.
"We found out that a skateboarder, a male in his mid 50’s was riding down Alohea when he made a hard right turn and collided with a car that was stopped at the stop sign," said Lt Bobby Towne, of the Honolulu police traffic division.
Police said the man hit the back side of a Mitsubishi SUV and was thrown on impact.
His skateboard landed halfway up the block.
Initially investigators said the man did not have any ID on him, but at the hospital, staffers were able to identify him as a Maunalei Avenue resident, so he was not far from his home. He was taken by ambulance from the scene in critical condition, but later died.
He was not wearing a helmet.
The driver of the SUV was a 67-year-old Pearl City resident.
Police say skateboard statistics are being collected.
Just a few days ago there was another skateboard crash in Aiea.
"We just had another one that did not qualify as a moving vehicle collision. A 14-year-old kid was critically injured riding on the roadway. He was also not wearing a helmet," said Towne.
There have been a number of recent fatal skateboard crashes.
Last month a 44-year-old skater died in a crash in Kaaawa and earlier this year a 26- ear-old man died in Kaneohe.
It was about the same time last year that the Honolulu City Council took up a bill to make helmets for skateboarders under 18 mandatory.
It was triggered by the death of a Hawaii Kai teen and others.
The bill introduced by Councilman Joey Manahan called for fines of up to $250, but the legislation was deferred in committee.