“Poor marine weather forecasts are hampering search efforts on the water, with easterly swells in the area,” the police spokesman said.
“Police and other agencies will continue to monitor forecasts and as conditions allow, we will look to scale up efforts in the water.”
According to MetService, rain is set to continue today and ease later tonight.
Tuesday may see isolated showers and southerlies occur, which are expected to continue into Wednesday.
The Whangārei Malayalee Association named Babu and Kumar in a post on Facebook on Saturday and also requested community support.
The search for the men initially began with police search and rescue, a police Eagle helicopter and LandSar volunteers.
The national police dive squad joined the operation on Friday, alongside Coastguard Tūtūkākā Volunteers and Northland Coastguard Air Patrol.
The Ruakākā Surf Lifesaving Patrol search and rescue squad used inflatable rescue boats to help with the task of finding Babu on Friday.
Hapū have placed a rāhui (prohibited access) for the area around The Gap.
To donate to the families of Sarath Kumar and Ferzil Babu, head to the Givealittle page.
Brodie Stone is an education and general news reporter at the Advocate. Brodie has spent most of her life in Whangārei and is passionate about delving into issues that matter to Northlanders and beyond.