Lifeguards are praising the public for their cooperation at patrolled beaches after this year's official holiday period ended with zero drownings between the flags.

Around 4500 lifeguards are out on patrol at over 80 locations nationwide this summer, helping to keep New Zealand's favourite playground safer for beachgoers to enjoy.

Surf Life Saving New Zealand national lifesaving manager Allan Mundy says a major part of lifeguarding is undertaking preventative actions which stop people from getting to the point of needing rescue.

"A lifeguard's role extends well beyond the flagged area. They will undertake roaming patrols to check on swimmers outside of the patrolled area, encourage them to move into the flagged zone and also educate swimmers of general dangers around the beach.

"It's great to see people listening to our lifeguards, interacting with them and asking for advice out there on the beach."

Figures from Water Safety New Zealand show the preventable drowning toll for the official holiday period is eight, with two of them classified as beach drownings.

It's an improvement on the total of 10 drownings last official holiday period, of which six were classed as beach drownings.

Allan acknowledges the weather hasn't been as good which may have kept some people away from the beach and therefore contributed to the lower fatality rate.

"It just means that when the weather does heat up and more people head out for a swim we have to be extra vigilant.

'A lot of people are still on holiday and will be heading to the beach over the coming weeks so we want to make sure people continue to choose a patrolled beach and swim between the flags so that lifeguards are on hand if they do find themselves out of their depth."