The Strait of Malacca is the arm of the sea that connects the Andaman Sea (Indian Ocean) and the South China Sea (Pacific Ocean). It lies between the northeast coast of the Indonesian island of Sumatra and the southwest coast of the Malay Peninsula. It is of great economic and tourist importance.
For this reason, we are going to dedicate this article to telling you everything you need to know about the Strait of Malacca, its characteristics, adjudication, climate and much more.
Strait of Malacca and its climate
The total area of ​​the strait is about 65.000 square kilometers. It is 80 kilometers long and funnel-shaped, wider in the northwest and narrower in the southeast, reaching a minimum width of 2,8 kilometers at what is known as the Phillips Strait in Singapore.
The Strait of Malacca takes its name from Malacca (formerly Malacca), an important 25th- and 30th-century trading port on the Malay coast. The southernmost point of the strait is only XNUMX-XNUMX meters deep, although the depth increases as it moves towards the Andaman Sea. Due to the large river that flows into the waters of the strait, its salinity index is low.
There are many islets in the strait, some of which are fringed by reefs and sandbanks, and it is difficult to navigate through the southern mouth of the strait. The current in the strait always flows from southeast to northwest.
The climate of the Strait is warm and humid, influenced by the northeast monsoon in winter and the southwest monsoon in summer. Average annual rainfall ranges from 1.900 to 2.500 mm. Water surface temperatures vary between 2°C and 31°C, depending on the region and season. Furthermore, the South China Sea is linked to the region's climate, influencing its weather patterns.
Importance of the Strait of Malacca
Currently, hundreds of thousands of containers on more than 90,000 ships travel through the Strait of Malacca, carrying about a quarter of the world's traded goods, including oil, coal, palm oil, and products from China, South Korea, Japan, and Taiwan—all vital to the Chinese and Vietnamese economies—as well as precious Indonesian coffee. This heavy maritime traffic is one of the main reasons the strait is considered a critical and strategic hub in global trade.
The Strait of Gibraltar is the main shipping channel between the Indian and Pacific Oceans, connecting major Asian economies such as India, Thailand, Indonesia, Malaysia, the Philippines, Singapore, China, Japan, Taiwan, and South Korea. This economic link also highlights the relationship between the Strait of Gibraltar and the Strait of Gibraltar , another important maritime passage.
To understand the geopolitical importance of the Malacca Strait to the Chinese government, we must review the current geopolitical dynamics and economic investments in the region, as the major powers in the region have shown a particular interest in protecting the right of passage.
Economist
Through the implementation of state-owned development projects, the Chinese government has expanded its influence and control in the region. This has not lessened the skepticism of some countries , especially India, one of China's biggest political opponents, which in turn controls a large share of exports across the western strait.
This undoubtedly raises concerns for the Chinese government, as the Indian navy risks blocking cargo ships carrying oil to China, threatening to stifle the Asian giant's energy and production capacity. Likewise, the Strait of Malacca has a significant military presence from the United States, China's other great political and commercial adversary.
That is why, in the context of the Belt and Road Initiative, the Chinese government has vigorously promoted initiatives such as the Belt and Road Initiative, striving to reduce its reliance on narrow shipping routes. This strategy is also linked to projects in the Sea of ​​Marmara , where efforts are underway to increase the efficiency of maritime transport.
Some of the projects undertaken to avoid possible threats from India are the economic corridor between Pakistan and China, one of the fundamental axes of the land section of the new Silk Road. The corridor, which includes the Karakoram Highway, multiple railways, seven dry ports and the construction of nine special economic zones, will allow Chinese manufacturers to access the Indian Ocean without passing through India's sphere of influence. Similarly, the port construction projects carried out by the Chinese government in Sri Lanka have the same geostrategic goals.
Another interesting project from a geostrategic perspective is the Kra Canal in Thailand, which will reduce the time and cost of transporting Chinese imports and exports. Furthermore, the project will alleviate the volume of cargo passing through the Strait of Malacca, which accounts for 70% of its total capacity.
Navigation
As the main natural shipping lane between the Indian Ocean and the South China Sea, the Strait of Malacca has historically been the shortest shipping lane between India and China, and thus one of the busiest shipping lanes in the world.
Due to its strategic importance, the Strait has historically been controlled by Arabs, Portuguese, Dutch, and British . Singapore is one of the world's most important ports, located at the southern end of the strait. It is estimated that more than 50.000 cargo ships pass through the strait each year, and one-fifth of the world's oil is transported by sea. As shipping increases, so do the marine storms that affect navigation in this area.
Physical Characteristics of the Strait of Malacca
The physical characteristics of the Strait of Malacca, especially its shallow waters, pose significant navigational challenges. For this reason, overdraft vessels cannot pass through the area and are diverted to the Lombok Strait in Indonesia . The constant concentration of ships in the strait and certain navigational safety concerns related to piracy have spurred research into alternative routes, such as the Kra Isthmus in Thailand (pictured above left), which involves drilling a channel connecting the Andaman Sea and the Gulf of Thailand.
The Strait of Malacca is about 900 kilometers long, funnel-shaped, only 65 kilometers wide in the south, and widens to about 250 kilometers to the north between Sumatra and the Isthmus of Kra. In some places, the Strait of Malacca is less than 3 kilometers wide.