Singapore, 22 September 2026 – Many areas of Singapore experienced showers in the afternoon today. As at 6pm, the 1-hr PM2.5 concentration readings were 11 – 21 µg/m3, in Band 1 (Normal), and the 24-hr PSI was 59 – 77, in the Moderate range.
Update on Hotspot and Haze Situation
2 Showers also occurred over areas surrounding Singapore, including northern and central Sumatra. However, dry conditions persisted over parts of Kalimantan and southern Sumatra, with moderate to dense smoke plumes observed from fires in these areas.
3 Although dry conditions are forecast to continue over southeastern Sumatra and parts of Kalimantan, showers are expected over Singapore and parts of the surrounding region tomorrow which could lower the risk of smoke haze affecting Singapore. The 24-hr PSI for Singapore is forecast to be in the Moderate range.
Activity Guidelines
4 The health impact of haze is dependent on one’s health status, the PSI level, and the length and intensity of outdoor activity. For immediate outdoor activities, please check the 1-hr PM2.5 concentration readings and personal guide. Use the 24-hr PSI forecast and corresponding health advisories for planning next day outdoor activities.
5 For updates, visit our haze microsite (www.haze.gov.sg), the NEA website (www.nea.gov.sg), MSS website (www.weather.gov.sg), mobile app (myEnv) or follow us on NEA Facebook (www.facebook.com/NEASingapore) and NEA Twitter (@NEAsg). For information on the distribution of hotspots detected over the past fortnight in the region, please refer to the ASEAN Specialised Meteorological Centre (ASMC) website at http://asmc.asean.org.
Areas with lighter smoke haze are not indicated as they cannot be clearly discerned from satellite imagery. The full extent of the hotspot and smoke haze situation over Borneo could not be determined due to extensive cloud cover.
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