Using a moderate temperature will ensure that the salmon stays moist. Dressed/marinated salmon: Bake at a lower temperature like 350 or 375°F to prevent the sauce from burning. Fold over aluminum foil tightly to make packets; make several holes in top of packets with a fork to allow steam to escape. Dry seasoned salmon: Bake at higher temperatures for shorter periods to get moist fish with a crispy exterior. www.howtocookhero.com/super-simple-oven-baked-salmon-recipe Bake at 375 degrees for 15 to 20 minutes. Top fillets evenly with onion slices, diced butter, lemon slices and brown sugar. https://www.slenderkitchen.com/recipe/baked-garlic-lemon-salmon-in-foil Arrange packets on an ungreased baking sheet. To add some extra browning and flavor to the surface, broil the salmon for 3 to 4 minutes. Bake the salmon at 375ºF (191ºC) for the first 10 to 12 minutes, until it reaches 125ºF (52ºC).