Not for the slightest breeze. Even with a heavy base a slight breeze will attempt to pick this umbrella off like Mary Poppins. There is nothing to stabilize the umbrella to the pole creating a very unsteady situation. The lights are not at all bright. I suppose in pitch black conditions they do provide some ambiance as others have pointed out but put up against other patio lights these are nothing but indicator lights suggesting that I paid an additional sum of money for nothing. Considering the lights are not bright and I can only open the umbrella in calm conditions this is a waste of my money.