With temperatures expected to rise into the high 30s and even 40s over the next few weeks, many people will be doing what they can to stay cool.

It is crucial these people do not look towards irrigation channels as an escape from the heat, according to Murrumbidgee Irrigation.

Head of the company, Brett Jones described swimming in the channels as dangerous and "not worth the risk".

"There are many hidden dangers that make irrigation channels a treacherous place to swim including strong undercurrents, varying channel depths, snakes and submerged objects."

Mr Jones said automated gates control the channels remotely, meaning flows and conditions can change quickly without warning.

"Regulator gates can open without notice and create a trap, while siphons and pipes can create powerful suction or a water surge."

New lining in some channels has also made them slippery, adding to the danger.

Local residents are being advised to instead use safer options to cool off, such as local public pools, where qualified staff members are able to supervise.

Mr Jones said those fishing in the channels should also be careful, by standing clear of the edge, staying away from roads, and not going in the water.

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"Australians love the outdoors and swimming but accidents can and do occur ... no matter how experienced a swimmer you are, always be alert around water."

Murrumbidgee Irrigation provided the following precautions: don't swim in irrigation channels; avoid fast flowing water; beware of submerged objects; don't dive into water of unknown depth; know where young children are and never leave them unattended around water; and never swim alone.