I'm considering a skylight or tubes on my next tank, we have a lot of sunshine here in Arizona. I'm from Long Beach, CA originally and remember the morning fog that burns off around 10-noon everyday.
You might try setting up a par meter that turns on auxiliary lighting to keep par values at a minimum setting. There is a Veterinarian in Texas (Herpervet) who has a skylight similar to yours and has experienced burning of corals when the sun is most intense during the summer months. He says that during the winter when the sun intensity drops he uses supplemental lighting but the sudden high intensity when summer hits causes burning of some of his corals. Maybe keeping the par higher during the winter can prevent that from happening, just a thought. There is also a company in Tucson that makes a mirror tracking device that follows the sun throughout the day to greatly increase light, I believe Herpervet uses this device.
You might try setting up a par meter that turns on auxiliary lighting to keep par values at a minimum setting. There is a Veterinarian in Texas (Herpervet) who has a skylight similar to yours and has experienced burning of corals when the sun is most intense during the summer months. He says that during the winter when the sun intensity drops he uses supplemental lighting but the sudden high intensity when summer hits causes burning of some of his corals. Maybe keeping the par higher during the winter can prevent that from happening, just a thought. There is also a company in Tucson that makes a mirror tracking device that follows the sun throughout the day to greatly increase light, I believe Herpervet uses this device.