The three-hour Pollutant Standards Index (PSI) at 5pm on Saturday fell to 73 from 85 an hour earlier. This is now the lowest PSI reading since last Sunday's 11am reading of 64.

The 24 hour average PSI at 5pm also dipped to a 165-185 range from 167-187.

Air in the 51-100 reading is considered "moderate", while the 101 to 200 PSI range is considered "unhealthy". Anything above 300 is hazardous, while readings between 201 and 300 are very unhealthy.

With the first signs of sunshine in these past few days, people are emerging to take advantage of the blue skies while they still last. "We only decided to come out a couple of hours ago," said Ericko Liong, 22, a tourist from Jakarta, who was out at Gardens by the Bay. "If the haze situation was as bad as yesterday we wouldn't be here but would be staying indoors."

Mr Ashok Saxena, 49, a software engineer visiting from New Delhi,is happy that there is finally some good weather. "It was very frustrating the last couple of days having spent so much money coming here and not being able to do anything." He returns to India tomorrow. "We're trying to make the most of the remaining time here and it's good that the skies are clearing up."