Monthly Archives: September 2026

September 30, 2026

Haze Situation Update (30 September 2026)

Singapore, 30 September 2026 – As at 6pm, the 1-hr PM2.5 concentration readings were 6 – 18 µg/m3, in Band 1 (Normal), and the 24-hr PSI was 91 – 112 in the Moderate to Unhealthy range.

Update on Hotspot and Haze Situation

2 There was an improvement in the haze situation today with showers over Singapore and the surrounding region. However, smoke haze from southern Sumatra and Kalimantan was observed to drift towards Singapore.

3 Dry conditions are expected to persist over southern Sumatra and the southern parts of Kalimantan. While showers are forecast over Singapore and the surrounding region tomorrow, the risk of smoke haze affecting Singapore remains under the prevailing southeasterly or southerly winds. The 24-hr PSI for Singapore is forecast to be in the Moderate to Low Unhealthy range.

Activity Guidelines

4 The health impact of haze is dependent on one’s health status, the PSI level, and the length and intensity of outdoor activity. For immediate outdoor activities, please check the 1-hr PM2.5 concentration readings and personal guide. Use the 24-hr PSI forecast and corresponding health advisories for planning next day outdoor activities.

5 For updates, visit our haze microsite (www.haze.gov.sg), the NEA website (www.nea.gov.sg), MSS website (www.weather.gov.sg), mobile app (myENV) or follow us on NEA Facebook (www.facebook.com/NEASingapore). For information on the distribution of hotspots detected over the past fortnight in the region, please refer to the ASEAN Specialised Meteorological Centre (ASMC) website at http://asmc.asean.org.

Areas with lighter smoke haze are not indicated as they cannot be clearly discerned from satellite imagery. The full extent of the hotspot and smoke haze situation over Borneo could not be determined due to extensive cloud cover.

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September 29, 2026

Haze Situation Update (29 September 2026)

Singapore, 29 September 2026 – It was partly cloudy over Singapore today. As at 6pm, the 1-hr PM_2.5 concentration readings were 44 – 76 µg/m³, in Band 1 (Normal) / Band 2 (Elevated), and the 24-hr PSI was 107 – 153 in the Unhealthy range.

Update on Hotspot and Haze Situation

2 Moderate to dense smoke haze originating from fires in Kalimantan continued to drift towards Singapore. Smoke haze was also observed from fires detected in southern Sumatra.

3 Dry conditions are expected to persist over southern Sumatra and parts of Kalimantan. While showers are forecast over Singapore and the parts of the surrounding regions tomorrow, there remains a risk of smoke haze affecting Singapore under the easterly or southeasterly prevailing winds. The 24-hr PSI for Singapore is forecast to be in the High Moderate to Mid Unhealthy range.

Activity Guidelines

5 For updates, visit our haze microsite (www.haze.gov.sg), the NEA website (www.nea.gov.sg), MSS website (www.weather.gov.sg), mobile app (myEnv) or follow us on NEA Facebook (www.facebook.com/NEASingapore) and NEA Twitter (@NEAsg). For information on the distribution of hotspots detected over the past fortnight in the region, please refer to the ASEAN Specialised Meteorological Centre (ASMC) website at http://asmc.asean.org.

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September 28, 2026

Haze Situation Update (28 September 2026)

Singapore, 28 September 2026 – There were brief showers over the northern and eastern parts of Singapore in the afternoon today. As at 6pm, the 1-hr PM_2.5 concentration readings were 64 – 138 µg/m³, in (Band 2, Elevated), and the 24-hr PSI was 68 – 94 in the Moderate range.

Update on Hotspot and Haze Situation

2 Moderate to dense smoke haze drifted to Singapore from fires in southern Sumatra and Kalimantan.

3 Dry conditions are expected to persist over southern Sumatra and parts of Kalimantan. While some showers are forecast over Singapore tomorrow, there remains a risk of smoke haze affecting Singapore with the prevailing winds expected to blow from the east or southeast. The 24-hr PSI for Singapore is forecast to be in the High Moderate to Mid Unhealthy range.

Activity Guidelines

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September 27, 2026

Haze Situation Update (27 September 2026)

Singapore, 27 September 2026 – Heavy showers fell over Singapore in the late morning and afternoon today. As at 6pm, the 1-hr PM2.5 concentration readings were 12 – 28 µg/m3, in (Band 1, Normal), and the 24-hr PSI was 84 – 123 in the Moderate to Unhealthy range.

Update on Hotspot and Haze Situation

2 Some improvements in the smoke haze situation were observed today due to showers over Singapore and the surrounding region. Dry conditions continued over southern Sumatra and parts of Kalimantan, with moderate to dense smoke plumes observed from fires in these areas.

3 While showers are expected over Singapore and parts of the surrounding region tomorrow, dry conditions are forecast to continue over southern Sumatra and southern Kalimantan tomorrow. With the prevailing winds forecast to blow from the southeast, there remains a risk of smoke haze affecting Singapore. The 24-hr PSI for Singapore is forecast to be in the Moderate to Low Unhealthy range.

Activity Guidelines

4. The health impact of haze is dependent on one’s health status, the PSI level, and the length and intensity of outdoor activity. For immediate outdoor activities, please check the 1-hr PM2.5 concentration readings and personal guide. Use the 24-hr PSI forecast and corresponding health advisories for planning next day outdoor activities.

5. For updates, visit our haze microsite (www.haze.gov.sg), the NEA website (www.nea.gov.sg), MSS website (www.weather.gov.sg), mobile app (myENV) or follow us on NEA Facebook (www.facebook.com/NEASingapore). For information on the distribution of hotspots detected over the past fortnight in the region, please refer to the ASEAN Specialised Meteorological Centre (ASMC) website at http://asmc.asean.org.

Areas with lighter smoke haze are not indicated as they cannot be clearly discerned from satellite imagery. The full extent of the hotspot and smoke haze situation could not be determined due to extensive cloud cover.

– End –

September 26, 2026

Haze Situation Update (26 September 2026)

Singapore, 26 September 2026 – It was dry over Singapore today. As at 5pm, the 1-hr PM2.5 concentration readings were 39 – 66 µg/m3, in (Band 1, Normal / Band 2, Elevated), and the 24-hr PSI was 69 – 93 in the Moderate range.

Update on Hotspot and Haze Situation

2 Moderate to dense smoke haze from fires in Kalimantan drifted towards Singapore. Smoke plumes were also observed to emanate from fires in southern Sumatra.

3 While some showers are forecast over Singapore and parts of the surrounding region overnight and tomorrow, dry conditions are expected to continue over southern Sumatra and the southern and eastern parts of Kalimantan. There could be a risk of smoke haze affecting Singapore as the prevailing winds are forecast to blow from the southeast or southwest. The 24-hr PSI for Singapore is forecast to be in the Moderate to Low Unhealthy range.

Activity Guidelines

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September 25, 2026

Haze Situation Update (25 September 2026)

Singapore, 25 September 2026 – It was partly cloudy over Singapore today. As at 6pm, the 1-hr PM_2.5 concentration readings were 17 – 35 µg/m³, in Band 1 (Normal), and the 24-hr PSI was 61 – 79, in the Moderate range.

Update on Hotspot and Haze Situation

2 Moderate to dense smoke plumes were observed from fires in parts of Kalimantan and southern Sumatra as dry weather conditions persisted over these areas.

3 While dry conditions are forecast to continue over the southeastern parts of Sumatra and the southern parts of Kalimantan tomorrow, showers are expected over Singapore and parts of the surrounding region which could help reduce the risk of smoke haze. The 24-hr PSI for Singapore is forecast to be in the Moderate range.

Activity Guidelines

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September 24, 2026

Haze Situation Update (24 September 2026)

Singapore, 24 September 2026 – Some showers were observed over the northern parts of Singapore in the afternoon today. As at 6pm, the 1-hr PM_2.5 concentration readings were 17 – 27 µg/m³, in Band 1 (Normal), and the 24-hr PSI was 62 – 76, in the Moderate range.

Update on Hotspot and Haze Situation

2 Dry conditions persisted over parts of Kalimantan and southern Sumatra, with moderate to dense smoke plumes observed from fires in these areas.

3 While showers are forecast over Singapore and parts of the surrounding region tomorrow, dry conditions are expected to continue over the southeastern parts of Sumatra and the southwestern parts of Kalimantan. There could be a risk of smoke haze as the prevailing winds are forecast to blow from the east-southeast or southeast. The 24-hr PSI for Singapore is forecast to be in the Moderate to Low Unhealthy range.

Activity Guidelines

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September 23, 2026

Haze Situation Update (23 September 2026)

Singapore, 23 September 2026 – Some areas of Singapore experienced showers in the afternoon today. As at 6pm, the 1-hr PM_2.5 concentration readings were 31 – 60 µg/m³, in Band 1, Normal / Band 2, Elevated, and the 24-hr PSI was 57 – 65, in the Moderate range.

Update on Hotspot and Haze Situation

2 Dry conditions continued over southern Sumatra and parts of Kalimantan, with moderate to dense smoke plumes observed from fires in these areas.

3 Dry conditions are forecast over southeastern Sumatra and parts of Kalimantan tomorrow. Showers are however expected over Singapore and parts of the surrounding region which could lower the risk of smoke haze. The 24-hr PSI for Singapore is forecast to be in the Moderate to Low Unhealthy range.

Activity Guidelines

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September 22, 2026

Haze Situation Update (22 September 2026)

Singapore, 22 September 2026 – Many areas of Singapore experienced showers in the afternoon today. As at 6pm, the 1-hr PM_2.5 concentration readings were 11 – 21 µg/m³, in Band 1 (Normal), and the 24-hr PSI was 59 – 77, in the Moderate range.

Update on Hotspot and Haze Situation

2 Showers also occurred over areas surrounding Singapore, including northern and central Sumatra. However, dry conditions persisted over parts of Kalimantan and southern Sumatra, with moderate to dense smoke plumes observed from fires in these areas.

3 Although dry conditions are forecast to continue over southeastern Sumatra and parts of Kalimantan, showers are expected over Singapore and parts of the surrounding region tomorrow which could lower the risk of smoke haze affecting Singapore. The 24-hr PSI for Singapore is forecast to be in the Moderate range.

Activity Guidelines

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September 21, 2026

Haze Situation Update (21 September 2026)

Singapore, 21 September 2026 – Showers fell over many parts of Singapore in the afternoon today. As at 5pm, the 1-hr PM2.5 concentration readings were 19 – 36 µg/m3, in Band 1 (Normal), and the 24-hr PSI was 67 – 82, in the Moderate range.

Update on Hotspot and Haze Situation

2 Moderate to dense smoke plumes continue to be observed from fires in Kalimantan and southern Sumatra.

3 While some showers are forecast over the surrounding region, dry conditions are expected to continue in southeastern Sumatra and southwestern Kalimantan. With the prevailing winds forecast to continue blowing from the southeast, there remains a risk of smoke haze affecting Singapore. The 24-hr PSI for Singapore is forecast to be in the Moderate – Low Unhealthy range.

Activity Guidelines

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