Borders of Malaysia Borders of Malaysia The borders of Malaysia include land and maritime borders with Brunei, Indonesia and Thailand and shared maritime boundaries with China, Philippines, Singapore and Vietnam. Malaysia has a total land border length of 3,147.3 km. Malaysia's border with Brunei is 481.3 km in length. Except for its coastline with the South China Sea, Brunei is completely surrounded by Malaysia's state of Sarawak on the island of Borneo. Malaysia shares a land border with Indonesia on the island of Borneo. The Malaysian states of Sabah and Sarawak lie to the north of the border while the Indonesian provinces of
Geography of Brunei Geography of Brunei Brunei is a country in Southeastern Asia, bordering the South China Sea and East Malaysia. Its geographical coordinates are . Brunei shares a border with Malaysia and has a coastline. The climate in Brunei is tropical equatorial and humid subtropical at higher altitudes with heavy rainfall. Bandar Seri Begawan's climate is tropical equatorial with two seasons. Dry season is extremely hot (). Wet or rainy season is generally warm and wet (). Most of the country is a flat coastal plain with mountains in the east and hilly lowland in the west. The lowest point is at