"We played the conditions terribly wrong in the second half. The boys have got to wear that but our defence was phenomenal for so long."
The narrow loss comes a week after Whanganui lost the Tuera Shield to Taranaki Maori 21-17 in New Plymouth.
But despite the losses against far bigger unions, Whanganui Maori coach Dennis Tucker believe Whanganui Maori rugby is in a good place.
"It's been a great experience for the boys. We just need a bit more commitment to be able to be up there. We need support from the bigger picture of Whanganui."
"We've got to take the loss but at the end of the day they were very closes losses.
"I'll never blame the boys. They played with pride and they played with spirit and I'm very proud."