What all temperate rainforests share however, are unique environmental characteristics. The most important of these is that they only exist in places where mountains or mountain ranges loom over the sea. In other words, the ocean and the mountains put the rain in the rainforest and together they shape every aspect of the temperate rainforest. Alaska's coast is a rugged, stunning archipelago consisting of countless islands of all sizes and shapes. Here, the temperate rainforest is nestled between the coastal mountains and the ocean.
Weather greatly influences the ecological character of Alaska's rainforest as well.
In winter months, storm clouds gather water over the ocean and soak the forests with almost constant rain. In summer months, warm ocean air meets cold coastal waters and creates dense layers of fog which moisten rainforest plants, while long periods of bright sunshine provide welcome nourishment.