Humidity is affecting North Island vegetable growers, causing shortages of some green vegetables, and some dramatic price hikes as a result.
Annette Laird, of Foodstuffs NZ, which owns the New World, Pak'nSave and Four Square brands, confirmed the weather had been causing some produce issues.
"This is especially the case with the likes of broccoli, cauliflower and fresh cut lettuce and salads, and things are likely to be a bit tight in terms of supply for a couple of weeks.
"Customers are obviously expecting lovely produce at this time of year but it is proving challenging."
At The Orchard Store at Bayview, Napier, cauliflower was in short supply, as was spinach, which had been affected by the hot growing conditions, said employee Casey McLeay.