Readings below the average figure of 1,000 metres in fog is poor.
Poor visibility was recorded in several parts of New Delhi today as smog continued to engulf the national capital, even as the mercury settled at 8.3 degrees Celsius.
"At 8:30 am, the visibility had dropped to 700 mts at the Safdarjung Observatory, while the Palam station registered it at 900 mts. The maximum temperature is likely to hover around 23 degrees Celsius," a Meteorological (MeT) Department official said.
Any reading that fell below the average figure of 1,000 mts, in fog, was considered poor, he added.
The weatherman has forecast a partly clear sky later in the day and mist tomorrow morning.
The relative humidity recorded at 8:30am was 89 per cent.
The maximum and minimum temperatures are likely to be around 23 and 11 degrees Celsius respectively tomorrow.