Earlier, Pakistan had been 52-3 when the first interruption arrived and play resumed with the game trimmed to 46 overs. But there was to be no resumption after the second rain break.
“We were in a decent position and we were waiting for the rain to stop. This is disappointing as you wait for four years to play a World Cup. It’s a real shame. Now we have to win both our remaining games,” New Zealand captain Sophie Devine said.
For New Zealand, both their Colombo games were abandoned due to rain with their earlier encounter against Sri Lanka also being affected.
The White Ferns now have four points, level with India, though the latter occupy fourth spot courtesy of a superior Net Run Rate and have a game in hand.
Pakistan, meanwhile, remain winless, three defeats and two no-results tell the sorry tale of their campaign.
New Zealand’s attack made early inroads, with seamers Jess Kerr and Lea Tahuhu hitting the right areas to deliver the initial breakthroughs. The spinners then tightened the screws, with Amelia Kerr and Eden Carson sharing the spoils.
The White Ferns were razor-sharp in the field too. Veteran Suzie Bates plucked a stunner at mid-wicket to send back opener Muneeba Ali (22), while Carson threw herself full length at point to pouch Sidra Amin (nine).
“We were looking at something like 180. We know we have some good spinners and we could have put pressure on them,” Pakistan skipper Fatima Sana said.