Today's figures show guest nights fell across all accommodation sectors except backpacker stays, which posted a seasonally adjusted 0.4 per cent gain in June.
Holiday park nights sank 9.3 per cent, motel stays dropped 5.1 per cent and hotel nights fell 4 per cent.
Kiwis staying overnight also fell in the month, with domestic guest nights declining 5 per cent, and international guests nights dropping 4 per cent.
On an annual basis, national guest nights rose for a 15th straight month, up 3.1 per cent to 1.93 million guest nights in the year ended June 30, the slowest annual pace since June 2014, the agency said. North Island annual guest nights also rose for the 15th consecutive month, up 2.7 per cent to 1.23 million stays, while South Island stays increased 3.8 per cent to 701,000.
International stays rose for the 19th consecutive month, up 8 per cent, with domestic guest nights up 0.6 per cent on an annual basis.
Total capacity in short-term accommodation expanded 0.8 percent in June compared to the same month last year. Occupancy rates increased to 30.4 percent from 29.3 per cent the same month a year earlier.
See the full survey results here: