PSI Forecast for planning outdoor activities on 4 November 2026.
PSI forecast for 4 November 2026 is 51–80, within the Moderate range.

Good–Moderate PSI (0–100): Healthy persons, elderly people, pregnant women, children, and persons with chronic lung or heart disease can continue normal activities. Advice is based on the high end of the PSI forecast.

Current Air Quality

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North
West
Central
East
South
Advisory unavailable.
1-hr PM2.5 reading (µg/m3)
MinMaxCurrent
24-hr PSI
MinMaxCurrent

Maps are to be used solely for displaying air quality/hotspot information, and not for any other purpose. All maps are not to scale and are for illustrative purposes only.

PM2.5 sub-index
MinMaxCurrent
PM10 sub-index
MinMaxCurrent
SO2 sub-index
MinMaxCurrent
O3 sub-index
MinMaxCurrent
CO sub-index
MinMaxCurrent
NO2 sub-index
MinMaxCurrent

Hotspots

The hotspots are derived from satellite data and may be affected by cloud cover and the satellite coverage

Refer to Meteorological Service Singapore for more details

Latest Weather and Haze Situation

Dry weather was observed over parts of the southern ASEAN region, except over parts of Borneo, Sumatra, Peninsular Malaysia and Java where there were showers. Few to isolated hotspots were detected in Peninsular Malaysia, the southern and eastern parts of Kalimantan and the southern parts of Sumatra. Moderate to dense smoke haze was observed over the southern parts of Kalimantan and Papua, as well as the central parts of Sulawesi. The full extent of the hotspot and smoke haze situation over the southern ASEAN region could not be determined due to extensive cloud cover. Wet weather was observed over the northern ASEAN region. Few hotspots were detected mainly in Thailand and Viet Nam, but no significant smoke plumes were observed.
Updated on 5:13 PM 04 November

Weather and Haze Outlook

Over the next few days, dry weather is forecast over parts of the southern ASEAN region, apart from parts of Peninsular Malaysia, Sumatra, Java and Borneo where showers are expected. While showers may bring some improvement, the hotspot and smoke haze situation is likely to remain elevated especially over areas experiencing prolonged dry weather, with a risk of transboundary haze occurrence. The prevailing winds over the southern ASEAN region are forecast to blow mainly from the east, except over the areas near the Equator where light and variable winds are expected. The northern ASEAN region is likely to stay wet, apart from the northern parts of Myanmar and the Philippines where it is forecast to be relatively drier. Isolated hotspots and smoke plumes may develop over areas experiencing prolonged dry conditions. The prevailing winds over the northern ASEAN region are expected to blow from the northeast to east, apart from the northern and western parts of the Mekong sub-region where the winds are likely to be light and variable in direction.
Updated on 5:13 PM 04 November


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Legend

dense haze legend
Dense Haze
moderate haze legend
Moderate Haze
hotspot legend
Hotspot
wind legend
2500ft wind
wind speed legend
Wind speed (km/h)

Health Advisory

NEA PSI Poster