What NEA reported (09 September 2026)
The National Environment Agency (NEA) observed dry conditions over Singapore on 9 September 2026 and reported that smoke haze was drifting towards the island from regional fires. Satellite imagery showed moderate to dense smoke plumes originating from fires in southern and central Sumatra and in Kalimantan — the sources of the haze affecting Singapore.
Measured air-quality numbers (as at 6.00 pm, 9 Sep 2026)
– 1‑hour PM2.5 readings: about 43–85 µg/m3 (Band 1–2, i.e., Normal to Elevated).
– 24‑hour PSI: about 74–98 (Moderate at the time of the advisory).
NEA’s short-term forecast for the 24‑hour PSI is in the “High Moderate – Low Unhealthy” range, reflecting the risk that smoke will continue to affect Singapore if the fires persist.
Why the haze may persist (forecast and risk factors)
NEA notes that some showers are forecast over central and northern Sumatra in the coming days, which could help dampen fires there; however, dry conditions are expected to persist over Kalimantan and southern Sumatra. With prevailing winds from the south/southeast, smoke from those dry-fire areas may continue to be transported to Singapore — the basis for NEA’s forecasted PSI range.
Health advice and activity guidance (from NEA)
NEA reiterates health guidance tied to PSI bands:
– Healthy persons: normal activities when the 24‑hr PSI is Moderate; reduce prolonged or strenuous outdoor physical exertion if PSI is Unhealthy.
– Elderly, pregnant women and children: normal activities at Moderate; minimise prolonged or strenuous outdoor physical exertion if Unhealthy.
– Persons with chronic lung or heart disease: normal activities at Moderate; avoid prolonged or strenuous outdoor physical exertion if Unhealthy.
NEA also advises the public to check 1‑hr PM2.5 readings for immediate activity decisions and to use the 24‑hr PSI forecast for planning for the next day.
Where to get real‑time data
NEA points readers to official sources for up‑to‑date readings and forecasts: haze.gov.sg and the myENV mobile app for live 24‑hr PSI and 1‑hr PM2.5 values, the NEA website for advisories, meteorological data from the Meteorological Service Singapore (MSS), and regional satellite/hotspot information from the ASEAN Specialised Meteorological Centre (ASMC).
What this advisory does not say
The NEA advisory does not provide details on the exact locations, acreage burned, who is responsible for the fires, or counts of hotspots. It likewise does not describe any Singapore government operational measures (for example, mask distribution, school closures, or bilateral firefighting assistance)—only the air‑quality readings, forecasts and the public‑health/activity guidance are given.
Bottom line for readers
As of 6.00 pm on 9 September 2026, air quality was in the Moderate range with 1‑hour PM2.5 at 43–85 µg/m3 and a 24‑hr PSI around 74–98; NEA forecasts conditions could reach the “High Moderate – Low Unhealthy” band if fires persist. Check 1‑hr PM2.5 for immediate decisions and the 24‑hr PSI forecast for planning, and follow NEA’s activity guidance for vulnerable groups.
For the full advisory and latest updates, see NEA’s Haze Situation Update (09 September 2026): https://www.nea.gov.sg/media/news/advisories/index/haze-situation-update-09-september-2026
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