The geography of Kuala Lumpur, Malaysia is characterized by a huge valley — known as the Klang Valley — bordered by the Titiwangsa Mountains in the east, several minor ranges in the north and the south and the Malacca Straits in the west.
The city is currently 243.65 km2 (94.07 sq mi) wide, with an average elevation of 21.95 m (72 ft).
The area is subject to flash flood due to thunderstorms and heavy rain.
Kuala Lumpur has moderate pollution compared to other modern cities in the world.
Due to the close proximity of the Sumatra Island, dust particles are carried by wind from perennial but transient forest fires, creating a phenomenon known as the haze.