Singapore sees continued respite from haze, with air quality remaining moderate
Air quality across Singapore is expected to remain in the moderate range on Wednesday.
The city skyline is seen through clear skies as haze conditions improve in Singapore on Oct 27, 2026. (File photo: AFP/Roslan Rahman)
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SINGAPORE: Hazy conditions have remained at bay for a third day on Wednesday (Oct 28), with air quality staying moderate across the island and hourly PM2.5 readings within the normal band.
Air quality has remained in the good-to-moderate range since 11pm on Sunday, following an earlier spell of hazy conditions.
At 12pm on Wednesday, the 24-hour Pollutant Standards Index (PSI) ranged from 67 to 79.
Hourly PM2.5 readings ranged from 26 to 38, with the highest readings in the western region.
The improvement is expected to hold for now, with the National Environment Agency (NEA) forecasting moderate air quality on Wednesday.
In its advisory on Tuesday evening, NEA said showers were expected over Kalimantan, Sumatra, Singapore and the surrounding region, which could continue to help ease the haze situation.
The 24-hour PSI is forecast to range between 60 and 90 on Wednesday.
Looking ahead to Thursday and Friday, winds are expected to blow from the east-southeast or south-southeast, potentially carrying smoke haze from southern Sumatra towards Singapore.
"While this could transport smoke haze from southern Sumatra, showers are forecast over the region which should help to lower the risk of haze," NEA said.
On Wednesday morning, NEA said it detected scattered hotspots in Kalimantan, as well as few to isolated hotspots elsewhere in the southern Association of Southeast Asian Nations (ASEAN) region.
It added that dry conditions are forecast over parts of the southern ASEAN region, except over Borneo, Sumatra, Java and Peninsular Malaysia.
"The hotspot and smoke haze situation may improve in areas experiencing showers but also continue to stay elevated in areas experiencing prolonged periods of dry weather, with a risk of transboundary haze occurrence," NEA said.
The prevailing winds over the southern ASEAN region are forecast to blow from the northeast to southeast, while those over the northern ASEAN region are expected to be light and variable in direction.
NEA has advised the public to refer to the 24-hour PSI forecast when planning outdoor activities and to check the latest 1-hour PM2.5 readings before undertaking immediate outdoor activities.
Based on Wednesday's PSI forecast, members of the public can continue with their usual outdoor activities.
When hourly PM2.5 concentrations are in the elevated band, healthy individuals should reduce strenuous outdoor activities for the next hour.
Vulnerable groups, including children, elderly people, pregnant women and those with chronic heart or lung conditions, should avoid strenuous outdoor activities during that period.
