Filed under: Lindsay Lohan, Celebrity Justice

With an electronic monitoring bracelet strapped around her ankle, Lindsay Lohan served her second day under house arrest suffering on her roof … in the warm California sun.

Lohan is currently shacked up at her swanky townhouse in Venice, CA — where, from her roof, she can totally see the ocean.

Lindsay — who’s being punished for allegedly stealing a necklace — is only expected to serve around 35 total days of hard time … glorious, relaxing, court-ordered hard time.