The answer to 'why is my skylight clogged gutters' is that clogged gutters can prevent proper drainage and cause water to back up, potentially leading to leaks around the skylight. Leaves, twigs, and other debris can accumulate in the gutters and prevent water from flowing freely, leading to overflow and potential damage.
To fix this issue, you'll need to clean out the gutters regularly, at least once or twice a year, to ensure they are free of debris and allow water to drain properly. If the problem persists or you notice any signs of damage around the skylight, it's best to call a professional roofing contractor to inspect the area and make any necessary repairs.