White coolers do beat dark ones in the sun

Yes, a white cooler will keep contents colder than a dark one when both sit in direct sun.

It’s simple physics. White reflects most of the sunlight that hits it. Dark colors absorb that sunlight and turn it into heat. That heat soaks into the cooler walls and then into the air inside. So a dark cooler works against you in the sun, while a white one gives the sun less to grab onto.

That said, color is not the whole story. A well-insulated dark cooler can still beat a cheap white one. The thick walls, lid seal, and quality of the ice matter more than the finish. Color is a bonus, not a miracle worker.

If your cooler sits in the shade all day, don’t worry about this at all. But if it’s going to bake in a truck bed or on a sunny deck, get white. It’s the cheapest ice-preserving upgrade you