Two trampers were found dead on a track in the Tararua Forest Park on Monday.

One tramper was found by a member of the public about 10.30 this morning and Search and Rescue located the second body about 1pm, not far away.

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The men, aged 39 and 32, were heading on an overnight tramp to Alpha Hut from the Waiohine Gorge campsite on Saturday morning.

They were reported overdue on Sunday about 7pm by a family member.

The bodies were recovered from the bush on Monday afternoon.

Police said weather conditions in the Tararuas were good overnight on Saturday, but the temperature did drop.

A police spokesperson said "early indications were hypothermia", but that had not been confirmed.

Police are not treating it as a suicide but were working to establish what tramping experience the pair had and were investigating on behalf of the coroner.

MetService forecaster Allister Gorman said it had been a typical November night.

"The Tararua Ranges is a large area but it wasn't especially cold.

"Masterton got down to 4C and our station at the top of Rimutaka Hill Rd got down to 8.5C, so it may have been somewhere between 3-6C.

"The last rain in the area was on Saturday, and the winds weren't too strong, northwesterlies from 40 - 60kmh.

"There many have been some lingering effects from the recent bad weather, but in the last 24 hours the weather hasn't been extreme, particularly for this time of year."

Peter Barber, president of the Tararua Tramping Club, said the recommended group size for a trek that long should be four people.

"It's a long way to go for help if there are only two in a group and something happens to one of them.

"It's quite a tragedy really, and a mystery."