Haze Situation Update (4 October 2026)

Singapore, 4 October 2026 – It was dry over Singapore today. As at 5pm, the 1-hr PM2.5 concentration readings were 41 – 90 µg/m3, in (Band 1, Normal / Band 2, Elevated), and the 24-hr PSI was 73 – 96 in the Moderate range. 1.         Moderate to dense smoke plumes from southern Sumatra continued to drift towards Singapore and the surrounding region. …