Wagga man Tony Davis, also known as The Snakeman, has been a snake catcher for about 20 years and said the warmer months mean more callouts.

"Because the snakes have just come out of hibernation, they're looking for food and it's their mating season," Mr Davis said.

"The females go around laying a perfume behind them and all the males in the neighbourhood pick up the scent.

"I had a call to Boorooma earlier this week and there were three snakes in their backyard."

He said that if you encounter snakes, keep still and "don't panic too much".

"Don't try to approach it, let me do that," he said.

However, he said the best measure to avoiding the situation altogether is keeping backyards clean and tidy.

"You won't actually keep a snake out of your yard, but if it's clean and tidy, there's nowhere for them to hide," he said.

Mr Davis said that if you do get bitten, call triple zero and stay as still as possible "so the venom doesn't go straight into the blood system".

The Australian Reptile Park meanwhile said the state has had an early increase in snake sightings as temperatures begin to rise.

"It's the season to brush up on your snakebite first-aid knowledge and ensure all Australians are doing what they can to coexist with our slithery friends," head of reptiles Daniel Rumsey said in a statement.

The park says about 3000 people are bitten by snakes every year, with about 300 of them receiving antivenom and one or two bites, on average, proving fatal.