Google Trends is currently available in Singapore. According to CNET, Singapore is the 3rd country outside of the USA, after India, to have it. It allows one to check on the search trend based on location.You can find out more about Google Trends Singapore at http://www.google.com.sg/trends
I have used Google Trends in the past to locate where are most of my searches for my targeted market coming from. This allows me to know where my prospects are located so that I can do geographical based marketing. And it is working well for me!
I know it can help you too!