Singapore air quality today
Highest 24-hour PSI across the island right now
Healthy people should cut down on long or strenuous outdoor activity. Children, the elderly and pregnant women should keep it to a minimum, and people with heart or lung conditions should avoid it.
West and Central highest. Island range 104–147. NEA reading for 12 Oct, 1pm.
Readings by region
24-hour PSI drives NEA's health advice. 1-hour PM2.5 shows what the air is like this hour.
| Region | 24-hr PSI | 1-hr PM2.5 µg/m³ | 24-hr PM2.5 µg/m³ | 24-hr PM10 µg/m³ | 8-hr O₃ µg/m³ |
|---|---|---|---|---|---|
| West | 147 Unhealthy | 124Band II Elevated | 100 | 118 | 19 |
| Central | 147 Unhealthy | 156Band III High | 100 | 123 | 44 |
| East | 133 Unhealthy | 116Band II Elevated | 86 | 121 | 44 |
| South | 115 Unhealthy | 91Band II Elevated | 69 | 100 | 41 |
| North | 104 Unhealthy | 93Band II Elevated | 59 | 76 | 38 |
PSI over the last 24 hours and the next 3 days
Solid line: highest regional 24-hour PSI reported by NEA. Dashed line: our model estimate. Shaded bands mark the PSI categories.
Haze forecast
Estimated daily peak PSI. Treat this as a guide and follow NEA's official forecast alongside.
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Wind for the next 24 hours
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NEA's official outlook
24-hr PSI forecast: Unhealthy
Singapore, 11 October 2026 – Showers were observed over the northwestern parts of Singapore today. As at 6pm, the 1-hr PM2.5 concentration readings were 39 – 111 µg/m3, in (Band 1, Normal / Band 2, Elevated), and the 24-hr PSI was 112 – 155, in the Unhealthy range.
Smoke haze from southern Sumatra and West Kalimantan was observed to drift towards Singapore.
Showers are forecast over Singapore and parts of the surrounding region. However, dry conditions are expected to continue over parts of southern Sumatra and Kalimantan. Under the prevailing southeasterly or southerly winds, smoke haze may continue to drift towards Singapore. The 24-hr PSI for Singapore is forecast to be in the Unhealthy range.
Fires and smoke around Singapore
Satellite hotspots and smoke haze areas mapped by NEA, refreshed every 30 minutes. Winds from the south and south-east carry this smoke to Singapore.
The map loads when you scroll here.
- Fire hotspot (NEA satellite detection, 11 Oct, 4:19pm)
- Moderate smoke haze
- Dense smoke haze
- Singapore 24-hr PSI
PSI this haze season
The haze situation now
At 12 Oct, 1pm, the 24-hour PSI ranged from 104 to 147 across Singapore, in the unhealthy range, and NEA forecasts it to be unhealthy over the next 24 hours. NEA's latest satellite pass found 717 hotspots in the region, 382 in Kalimantan and 49 in Sumatra.
- PSI first crossed into the unhealthy band on 4 September 2026, the first time since October 2023. Daily NEA haze advisories have been issued since then.
- Smoke is drifting in from fires in southern and central Sumatra and from Kalimantan, carried by south-easterly and southerly winds.
- A very strong El Niño and a positive Indian Ocean Dipole have kept the region dry. Forecasters expect the dry season to end only in late October or early November.
- In Malaysia, schools have closed across Kuala Lumpur, Selangor, Johor and four other areas, and a state of emergency was declared in Serian, Sarawak, in September.
Latest haze headlines
Updated every 30 minutes from news across the region.
Singapore
- Unhealthy air quality in S'pore sufficient to trigger haze pollution law; NEA is monitoring situation
- Mosques to suspend non-essential outdoor programmes, adjust prayer arrangements if PSI turns very unhealthy: MUIS
- Air quality unhealthy across Singapore amid sustained haze
- Haze Keeps Air Quality Unhealthy, Firefly Cancels Flights
- Haze watch: PSI across Singapore remains unhealthy, PM2.5 improves in northern and southern regions
Indonesia
- Unhealthy air quality in S'pore sufficient to trigger haze pollution law; NEA is monitoring situation
- Haze: Johor assemblyman slams Indonesia over 'we send oxygen' remarks
- Indonesia Official Says Haze Is A Natural Phenomenon, Claims Its Forests Send Oxygen To Malaysia
- Indonesia Downplays Haze Crisis, Claiming Its Forests Also “Send Oxygen” To Malaysia & Singapore
- Wildfire Smoke Hits Indonesia; Air Quality in Palangka Raya Hazardous
Malaysia
- Haze: Johor assemblyman slams Indonesia over 'we send oxygen' remarks
- Sultan Ibrahim conferred Jordan’s highest civilian honour by King Abdullah II during Istana Negara ceremony
- Haze: MOE to announce school closures as early as possible – Fadhlina
- Haze: 23 areas record unhealthy air quality, Kota Tinggi highest as of 10am
- Haze: 23 areas record unhealthy API as at 11am
Key events
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Haze lingers over Singapore on Grand Prix race day
Air quality stayed unhealthy on Sunday 11 October. At 5pm the 24-hour PSI ranged from 113 to 154 across the island, while 1-hour PM2.5 ranged from 50 to 113.
SingaporeRead on CNA
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Central PSI reaches 192, the worst reading of 2026
By 6pm on 9 October the 24-hour PSI hit 192 in the central region, 187 in the west, 167 in the south, 166 in the east and 135 in the north. All five regions were in the unhealthy band.
SingaporeRead on Bernama
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Haze Task Force readies N95 mask distribution and school closure rules
If the PSI enters the very unhealthy range, People's Association grassroots groups will hand out N95 masks to vulnerable residents, collectable with an NRIC from vending machines at transport hubs, Social Service Offices and PA venues. MOE will consider closing schools when the next day's forecast is hazardous (PSI above 300). Employers who still need staff outdoors are urged to provide N95 masks.
SingaporeRead on Mothership
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Singapore Grand Prix runs with haze contingency plans
The Singapore Tourism Board worked with the race promoter and the Haze Task Force on tiered plans tied to PSI and PM2.5 levels, including on-site medical help and N95 masks for spectators if needed.
SingaporeRead on Bernama
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NEA traces smoke to Sumatra and West Kalimantan
NEA's advisory said moderate to dense smoke plumes from southern and central Sumatra and West Kalimantan were drifting towards Singapore, with dry weather expected to persist over the fire areas.
SingaporeRead on Malay Mail
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Indonesia logs 20,946 hotspots, most in Central Kalimantan
The Forestry Ministry's SiPongi system detected 20,946 hotspots in 24 hours, 1,202 of them high confidence. Central Kalimantan led with 7,309, followed by South Papua and South Sumatra.
IndonesiaRead on Katadata
What to do at each PSI level
| 24-hour PSI | Healthy people | Elderly, pregnant women, children | People with chronic lung or heart disease |
|---|---|---|---|
| 0–100 Good to moderate | Normal activities | Normal activities | Normal activities |
| 101–200 Unhealthy | Reduce long or strenuous outdoor exertion | Minimise long or strenuous outdoor exertion | Avoid long or strenuous outdoor exertion |
| 201–300 Very unhealthy | Avoid long or strenuous outdoor exertion | Minimise outdoor activity | Avoid outdoor activity |
| Above 300 Hazardous | Minimise outdoor activity | Avoid outdoor activity | Avoid outdoor activity |
1-hour PM2.5 bands
| Band | 1-hr PM2.5 (µg/m³) | Use it for |
|---|---|---|
| I Normal | 0–55 | Deciding on activities in the next hour or so |
| II Elevated | 56–150 | |
| III High | 151–250 | |
| IV Very high | 251 and above |
Haze questions
What is the PSI in Singapore?
The Pollutant Standards Index is the air quality index used by Singapore's National Environment Agency. It combines six pollutants: PM2.5, PM10, ozone, carbon monoxide, sulphur dioxide and nitrogen dioxide. Each one gets a sub-index and the PSI is the highest of them. During haze, PM2.5 almost always sets the PSI.
What PSI level is unhealthy?
A 24-hour PSI of 0 to 50 is good and 51 to 100 is moderate. 101 to 200 is unhealthy, 201 to 300 is very unhealthy, and anything above 300 is hazardous.
Should I look at the 24-hour PSI or the 1-hour PM2.5?
Use the 24-hour PSI and NEA's forecast to plan the next day, and follow the health advice for that band. Use the 1-hour PM2.5 reading to decide on something you are about to do right now, such as a run.
Is it safe to exercise outdoors during the haze?
At an unhealthy PSI, healthy adults should cut down on long or strenuous outdoor exercise. Children, the elderly and pregnant women should keep it to a minimum, and people with heart or lung conditions should avoid it. At very unhealthy levels, everyone should avoid strenuous outdoor activity.
Do I need an N95 mask?
Not for short exposure such as commuting or walking between buildings, or when you are indoors. An N95 mask helps if you must spend long periods outdoors when the PSI is unhealthy or worse. N95 masks are not designed for young children, and the elderly, pregnant women and people with heart or lung conditions should ask a doctor first.
When do schools close in Singapore because of haze?
MOE considers closing schools when the next day's 24-hour PSI forecast is hazardous, above 300. In 2015, MOE primary and secondary schools, special education schools and kindergartens closed for one day. Every MOE classroom now has an air purifier.
Where does the haze come from?
Mostly from forest and peatland fires in Indonesia, especially southern and central Sumatra and Kalimantan, many started to clear land. From August to October, south-easterly and southerly winds carry the smoke towards Singapore and Peninsular Malaysia.
Why is the haze so bad in 2026?
A very strong El Niño, sometimes called a Godzilla or super El Niño, and a positive Indian Ocean Dipole have made the region hotter and drier, so fires spread faster and burn longer. Forecasters expect the dry spell to end in late October or early November.
How often does this page update?
Every 30 minutes. The PSI and PM2.5 readings are pulled straight from NEA in your browser, and the site itself rebuilds every 30 minutes with NEA's latest forecast, satellite hotspots, smoke haze areas and news headlines. NEA publishes new readings every hour.
How is the haze forecast on this page made?
It takes hourly PM2.5 forecasts from the CAMS global atmospheric model (via Open-Meteo), scales them to match the latest NEA readings, and converts the result to the PSI scale. It is an estimate, not an official forecast. NEA's daily advisory is the official one.