Complex sentence: Seaside certainly earns its share of Monterey's infamous fog, sometimes even being the only city on the Monterey coastline completely blanketed in it as the others bask in sunlight.
Split into simpler sentences: Seaside certainly earns its share of Monterey's infamous fog. Sometimes, Seaside is even the only city on the Monterey coastline that is completely blanketed in fog whereas the others bask in sunlight.