World Weather Why does Japan get so cold in winter? March 3, 2026 by Myaya | Leave a Comment Japan’s cold winters are primarily due to its geographical location in East Asia, its mountainous terrain, and the influence of Siberian air masses during the winter months. The prevailing winds shift, bringing frigid air from the continent across the Sea of Japan, which then picks up moisture, leading to heavy snowfall in many regions. Understanding […] Read more ยป