Speaking to the local newspaper Straits Times, the F1 supremo indicated that because the Malaysian GP occupies a date early in the annual calendar, Singapore's fledgling race would probably be near the end of the year.
"The races will be at different ends of the racing calendar," he said.
"It will be a street race and at night, so it will be colorful and interesting."
Ecclestone played down suggestions that the prospect of a second race in the region had angered organizers in Malaysia.
He said: "I can foresee a lot of people from Malaysia going down there (to Singapore) and vice versa.
"The (two) races give more exposure and open people's eyes. With the Singapore race, there will be even more interest in the region," Bernie said.
Confirmation of the Singapore event is expected soon.