Haze Guide 烟霾助手中文

Fires in central Sumatra (Riau and Jambi) and Singapore's haze

Central Sumatra, mainly Riau and Jambi, lies about 280 km south-west of Singapore. When fires there are active and the wind blows from the south-west to south, smoke can reach Singapore within hours.

Singapore now · as at 10:00 SGT
100 µg/m³ · Elevated (1-hour PM2.5, NEA official, worst region)
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Live data (Singapore's point of view)

Hotspots, last 24 h
462 (-45 vs previous 24 h)
Direction and distance
SW of Singapore, ~291 km
Upwind of Singapore?
No
Wind at ~1.5 km
from the S, 12 km/h
Latest satellite pass
2026-10-10 18:15 UTC

'Upwind' is a wind-direction heuristic: it says transport is likely, not proven, and is not a smoke-trajectory model.

See the source data

Why this region matters

Riau and Jambi contain large areas of peatland, which burns for a long time and produces dense smoke when drained or cleared during the dry season.

It is also the closest of the usual source regions to Singapore, so a shift in wind direction can change Singapore's air within hours.

How we read the data

We count NASA FIRMS fire detections inside an approximate box for this region over the last 24 hours and compare them with the previous 24 hours.

We then check whether the wind at about 1.5 km altitude blows from this direction toward the place you are viewing. 'Upwind' means the wind blows from within 45° of the region and is strong enough to carry smoke.

This is a heuristic. It says transport is likely, not proven; it is not a smoke-trajectory model.

Related questions

Other causes

Fires in South Sumatra and Singapore's haze · Fires in Kalimantan and Singapore's haze · How wind carries smoke to Singapore · Dry weather and El Niño · Why peat fires make such dense haze · Does rain clear haze? What showers can and cannot do

Sources

General information, not medical advice. Follow your doctor and your school, league or organiser's final call. Data come from official sources; see data sources.