"However, we expect this year's larger harvest to put some downward pressure on prices," he said, citing the global trade tensions.
Regionally, the Waipara Valley has bounced back from last year's difficulties and the harvest was up by more than 33%.
The Central Otago Winegrowers Association said last week the tonnage for the district was up by about 15%, rising from its usual 8000 to 10,000 tonnes to 11,500 tonnes.
Mr Penny said in addition, harvests increased by more than 20% in Hawke's Bay and Wairarapa. Of the main wine regions, only Gisborne had its harvest dip, down by 20%. Marlborough posted a modest 4% increase.
For the week ending July 13, Mr Penny said the ASB commodity price index rose 0.4% in New Zealand dollar terms, but it was the kiwi's weakening against its US counterpart which provided the gain for the week.
Mr Penny said all the major index components posted falls during that week. Forestry and fruit posted the largest falls, both dipping 1.1%, while dairy and sheep-beef prices posted more modest declines of 0.5% apiece.
simon.hartley@odt.co.nz