Where is Singapore. Singapore is located on the southern tip of the Malay Peninsula in Southeast Asia, between the Indian Ocean and the South China Sea.Singapore is situated between parts of Malaysia and Indonesia, and features a hot, wet climate and tropical rainforests.ingapore's location has helped the city-state grow to become the largest port in the region, and one of the busiest in the world. In addition to the main island, known as Singapore Island or Pulau Ujong, there are more than sixty islets that form the nation.