Bella Hadid Wears Teeny Bikini During Malibu Beach Day

Bella Hadid’s here to remind us she’s got the supermodel game on lock -- her beach bikini pics are sending the temps sky-high!

The model took a break from the runway ... flaunting her killer physique in a tiny string bikini, splashing around in the Malibu waves like a total beach goddess Wednesday.

Bella was the ultimate beach pro ... casually adjusting her itsy-bitsy bikini top as she made a flawless exit from the water.

She's clearly living her best life, soaking up rays and goofing around with her squad -- total beach vibes all day.