A no-fly zone will be put in place for parts of the region, including Burnham-On-Sea, during a three-day Nato summit next month when leaders from around the world will be in Wales.
It will prevent light aircraft flying over the area below 10,000 ft (3,048 m) between 3rd-5th September.
The Civil Aviation Authority (CAA) has imposed the restriction following a request from police working on security at the Nato meeting, which will be held in Newport and Cardiff.
Over 60 heads of state and government leaders from across the globe will be attending the event.
In an advisory sent out to pilots, the CAA says the restriction is part of the security operation being put in place to protect heads of state, including President Barak Obama, who will be attending.
Unauthorised aircraft will not be able to fly over the area shown below which includes the Burnham-On-Sea area. Flights which breach the ban will be intercepted by police air support.
The ban will not affect emergency services or commercial flights travelling to and from Cardiff and Bristol airports.
