Annual sunshine hours vary globally due to factors like latitude, climate, and topography. Regions closer to the equator receive more sunlight, like the Sahara Desert, Middle East, southwestern US, and Australia. Conversely, northern Europe and Pacific Northwest USA experience fewer hours. Southeast Asia, including Thailand, Indonesia, Malaysia, Vietnam, and the Philippines, also show varying patterns, with averages ranging from 2,000 to 2,700 hours annually.