Northern California is not part of a tropical climate; it has a Mediterranean climate, with mild, wet winters and dry summers.

Northern California, unlike regions with a tropical climate, experiences a Mediterranean climate. This climate is characterized by mild, rainy winters and dry, warm summers. The region's temperatures are more moderate compared to tropical areas, and it lacks the intense humidity and consistent warmth typical of tropical climates. Places like San Francisco and the surrounding areas in Northern California are examples of this climate zone. The Mediterranean climate supports forests, grasslands, and agricultural activities like wine production, in contrast to the lush, year-round vegetation seen in tropical climates.