Summer ice is not a good way to keep cool in the heat, but rather a slippery road condition which can be a hazard for motorists.
During long dry spells, dust, dirt, oil and other materials build up on the road surface.
"When it rains, the road surface becomes greasy, making it very slippery – the greatest risk to drivers being shortly after the rain starts," says police.
"The term ‘summer ice' is used to describe these conditions that are similar to the black ice that you get in winter."
In a post on the Waikato Police Facebook page, police say even a little rain after several days of dry weather can trigger these conditions, creating a potential danger for unsuspecting drivers.
Please remember to drive to the conditions.
• keep your speeds down on wet roads after a long dry period
• take extra care on curves
• increase your following distance from vehicles in front of you
• brake on the straight and steer gently
• allow extra travel time in case you encounter summer ice conditions.
"Our roads are very busy with people heading home or to their next destinations.
"Please show some courtesy, exercise patience and drive to the conditions; so we can all get to and from our destinations safely."