NEA announced that the Meteorological Service Singapore (MSS) has forecast El Niño conditions to develop in June to July 2026. A positive Indian Ocean Dipole (IOD) is also predicted to develop in the second half of the year. Both climate phenomena are expected to bring warmer and drier conditions to Singapore and the surrounding region from June to October 2026, and this will increase the risk of transboundary haze affecting Singapore and the region.

The 28 government agencies under the Haze Task Force (HTF), chaired by the National Environment Agency (NEA), are ready to roll out their respective action plans should the air quality be impacted by transboundary haze. Members of the public should refer to the 1-hour PM_2.5 concentration as an indicator of current air quality, and the 1-hour PM_2.5 associated personal guide when planning outdoor or strenuous activities over the next few hours. The 1-hour PM_2.5 concentration level can be volatile and fluctuate throughout the day based on weather conditions, particularly during periods of transboundary haze. For planning of next day activities, members of the public are advised to refer to the 24-hour PSI and accompanying health advisories. MSS will continue to closely monitor the development of El Niño and IOD as well as the regional weather and haze situation and provide updates when necessary.