PUBLISHED ONSeptember 12, 2026 10:41 AMUPDATEDSeptember 12, 2026 1:12 PMBYSean LerShowers on Friday (Sept 11) afternoon and early Saturday morning have brought respite from both the haze and heat.
As of 6pm on Sept 12, the 24-hour Pollutant Standard Index (PSI) readings across all five regions in Singapore are in the moderate range.
Meanwhile, 1-hour PM2.5 readings are also in the normal range.
However, the country's 24-hour PSI forecast is still expected to be in the moderate to low unhealthy range.
Explaining this in its daily haze situation update on Saturday evening, NEA pointed out that moderate to dense smoke plumes continue to be observed from fires in southern Sumatra and Kalimantan.
It noted that showers are expected over northern Sumatra over the coming days, but dry conditions are forecast over central Sumatra and persist over Kalimantan and southern Sumatra.
This, coupled with the prevailing southerly or south-easterly winds, means there remains a risk of transboundary smoke haze affecting Singapore, should fires in Indonesia persist.
Members of the public are reminded that the health impact of haze is dependent on one's health status, the PSI level, and the length and intensity of outdoor activity.
Those who are planning to conduct or participate in outdoor activities immediately can check the 1-hour PM2.5 concentration readings and vulnerable persons guide.
Meanwhile, those who are planning outdoor activities for the next day should use the 24-hour PSI forecast and the corresponding health advisories for planning.
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