Asia Geography & Climate

Asia's geography ranges from the world's highest mountains to some of its lowest-lying coastal deltas. The Himalayas, running along Nepal's northern border and beyond, contain the highest points on Earth, including Mount Everest — a defining feature of South Asia's geography and the reason Nepal remains one of the world's premier trekking and mountaineering destinations.

Southeast Asia is defined as much by water as by land — Indonesia and the Philippines are vast archipelagos (Indonesia alone spans more than 17,000 islands), while mainland Southeast Asia's major rivers, including the Mekong, shape agriculture and daily life across Vietnam, Cambodia, and Thailand.

East Asia combines China's enormous internal range — deserts, mountains, and fertile river basins within one country — with the more compact, mountainous geography of Japan, South Korea, and Taiwan, all island or peninsular nations shaped heavily by the Pacific Ocean, including significant volcanic and seismic activity across Japan and Taiwan specifically.

Asia's climate is dominated by the monsoon system across its southern and southeastern regions — a seasonal wind reversal that brings heavy, concentrated rainfall to India, Nepal, and Southeast Asia for several months a year (roughly June to September in South Asia, with timing varying across Southeast Asia), followed by a long, generally dry and more travel-friendly season the rest of the year.

East Asia, by contrast, has four distinct seasons much like Europe or North America — cold winters, hot and often humid summers, and the two shoulder seasons (spring and autumn) that are generally considered the most pleasant and popular times to visit Japan, South Korea, China, and Taiwan.

Tropical Southeast Asian nations (Thailand, Cambodia, Vietnam's south, Malaysia, Singapore, Indonesia, the Philippines) stay warm and humid year-round, with the real seasonal variation being wet versus dry rather than hot versus cold.