Rural banking specialist Rabobank expects New Zealand's milk production to grow by 2 per cent in the current 2018/19 season and a farmgate milk price of $6.80 per kg of milksolids.
The milk price forecast compares with Fonterra's current season forecast of $7.00/kg.
The bank, in its latest commodity outlook, said the milk pool for the current 2018/19 season will grow again - whether permitting.
"This season, however, will be real test for determining the appetite of New Zealand dairy farmers to invest in further expansion," the bank said.
"Uncertainties in the local operating environment will see only modest production growth, despite attractive forecast milk prices," it said.