Category Archives: News

September 20, 2026

Haze Situation Update (20 September 2026)

Singapore, 20 September 2026 – Showers occurred mainly over the northern and eastern parts of Singapore in the afternoon today. As at 5pm, the 1-hr PM2.5 concentration readings were 24 – 73µg/m3, in Band 1 (Normal) / Band 2 (Elevated), and the 24-hr PSI was 71 – 102, in the Moderate to Unhealthy range

Update on Hotspot and Haze Situation

2 Moderate to dense smoke plumes continue to be observed from fires in Kalimantan and southern and central Sumatra. Smoke haze from Sumatra was observed drifting towards Singapore.

3 Dry conditions are expected to persist in southern Sumatra and southwestern Kalimantan. With the prevailing winds forecast to blow from the southeast, there is 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

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) 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.

Areas with lighter smoke haze are not indicated as they cannot be clearly discerned from satellite imagery.

– End –

September 19, 2026

Haze Situation Update (19 September 2026)

Singapore, 19 September 2026 – Some showers fell over the central and western parts of Singapore in the afternoon today. As at 5pm, the 1-hr PM_2.5 concentration readings were 29 – 66 µg/m³, in Band 1 (Normal) / Band 2 (Elevated), and the 24-hr PSI was 80 – 108, in the Moderate to Unhealthy range.

Update on Hotspot and Haze Situation

2 With the prevailing winds blowing from the southeast to southwest today, some smoke haze was observed to drift from southern and central Sumatra towards Singapore. Smoke plumes were also observed over southwestern Kalimantan.

3 There is a risk of smoke haze affecting Singapore as the prevailing winds are expected to blow from the east-southeast or southeast. The 24-hr PSI for Singapore is forecast to be in the High Moderate – mid Unhealthy range.

Activity Guidelines

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 18, 2026

Haze Situation Update (18 September 2026)

Singapore, 18 September 2026 – Some showers occurred over the northern parts of Singapore in the afternoon today. As at 5pm, the 1-hr PM2.5 concentration readings were 31 – 61 µg/m3, in Band 1 (Normal) / Band 2 (Elevated), and the 24-hr PSI was 64 – 86, in the Moderate range.

Update on Hotspot and Haze Situation

2 Dry conditions persisted over southern Sumatra and Kalimantan. Smoke plumes from fires in Kalimantan were observed to drift towards Singapore. Some smoke plumes were also observed in southern Sumatra.

3 Dry conditions are forecast to continue over parts of southern Sumatra and Kalimantan. There is a risk of smoke haze affecting Singapore as the prevailing winds are expected to blow from the east-southeast or southeast. The 24-hr PSI for Singapore is forecast to be in the High Moderate – Low Unhealthy range.

Activity Guidelines

Areas with lighter smoke haze are not indicated as they cannot be clearly discerned from satellite imagery.

– End –

September 17, 2026

Haze Situation Update (17 September 2026)

Singapore, 17 September 2026 – Dry conditions were observed over Singapore today. As at 5pm, the 1-hr PM2.5 concentration readings were 46 – 78 µg/m3, in Band 1 (Normal) / Band 2 (Elevated), and the 24-hr PSI was 66 – 93, in the Moderate range.

Update on Hotspot and Haze Situation

3 Dry conditions are expected to continue over southern Sumatra and southern Kalimantan. With the prevailing winds forecast to blow from the southeast to southwest, there is a risk of smoke haze affecting Singapore. The 24-hr PSI for Singapore is forecast to be in the High Moderate – Low Unhealthy range.

Activity Guidelines

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September 16, 2026

Haze Situation Update (16 September 2026)

Singapore, 16 September 2026 – Singapore experienced dry conditions today. As at 5pm, the 1-hr PM2.5 concentration readings were 34 – 59 µg/m3, in Band 2 (Elevated), and the 24-hr PSI was 71 – 89, in the Moderate range.

Update on Hotspot and Haze Situation

2 Improvements to Singapore’s air quality were observed today as showers continued over parts of Kalimantan. However, some smoke haze was observed to drift from the southern parts of Sumatra towards Singapore.

3 Dry conditions are expected to continue over southern and central Sumatra as well as the southern parts of Kalimantan. With the prevailing winds forecast to blow from the southeast or south, there remains some risk of haze affecting Singapore. The 24-hr PSI for Singapore is forecast to be in the Moderate – Low Unhealthy range.

Activity Guidelines

Areas with lighter smoke haze are not indicated as they cannot be clearly discerned from satellite imagery.

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More Showers Expected in the Coming Fortnight

16 September 2026 – More showers are expected in the second half of September 2026 compared to the first half of the month. Southwest Monsoon conditions are prevailing over Singapore and the surrounding region and are expected to continue in the coming fortnight, with winds blowing mainly from the southeast or southwest.

2 In the second fortnight of September 2026, localised short-duration thundery showers are expected between the late morning and afternoon over parts of the island on most days. On one or two days, regional convergence of winds may bring widespread moderate to heavy thundery showers over Singapore. Overall, the total rainfall for the second fortnight of September 2026 is forecast to be near the long-term average across most parts of the island.

3 For the rest of September 2026, the daily maximum temperatures are likely to range between 33 degrees Celsius and 34 degrees Celsius on most days and could reach around 35 degrees Celsius on a few days. Warm and humid conditions can still be expected on some nights with minimum temperatures remaining above 27 degrees Celsius.

4 For updates of the daily weather forecast, please visit the MSS website (www.weather.gov.sg) or download the myENV app. Since 4 September 2026, NEA has commenced issuance of the Daily Haze Advisories (DHA). Please refer to the DHA for the latest update of the haze situation.

REVIEW OF THE PAST TWO WEEKS (1 – 15 September 2026)

5 Southwest Monsoon conditions prevailed over Singapore and the surrounding region in the first half of September 2026, with winds blowing mostly from the southeast or southwest.

6 The first half of September 2026 was mostly dry, with brief thundery showers occurring over parts of the island on some days. On 11 September 2026, regional wind convergence brought moderate to heavy thundery showers over many parts of Singapore during the late morning and afternoon. The daily total rainfall of 105 mm recorded around Scotts Road area that day was the highest rainfall recorded for the first half of September 2026.

7 In the first half of September 2026, daily maximum temperatures exceeded 34 degrees Celsius on 12 occasions. The highest temperature of 35.3 degrees Celsius was recorded at Sembawang on 9 September 2026. Nights remained warm, with minimum temperatures staying above 27 degrees Celsius across many parts of the island.

8 Singapore recorded well below average rainfall in the first half of September 2026. The area around Changi registered rainfall of about 98 per cent below average.

CLIMATE STATION STATISTICS

Long-term Statistics for September
(Climatological reference period: 1991 – 2020)

Average daily maximum temperature:	31.6 °C
Average daily minimum temperature:	25.2 °C
Average monthly temperature:	28.0 °C
Average rainfall:	124.9 mm
Average number of rain days:	13

Historical Extremes for September
(Rainfall since 1869 and temperature since 1929)

Highest monthly mean daily maximum temperature:	33.0 °C (2019)
Lowest monthly mean daily minimum temperature:	22.4 °C (1930)

Highest monthly rainfall ever recorded:	440.4 mm (1988)
Lowest monthly rainfall ever recorded:	22.8 mm (2019)

September 15, 2026

Haze Situation Update (15 September 2026)

Singapore, 15 September 2026 – Dry conditions were observed over Singapore today. As at 6pm, the 1-hr PM2.5 concentration readings were 43 – 74 µg/m3, in Band 2 (Elevated), and the 24-hr PSI was 92 – 131, in the Moderate to Unhealthy range.

Update on Hotspot and Haze Situation

2 Compared to yesterday, there were some improvements in the smoke haze situation today due to overnight showers over some areas in the surrounding region. However, with the prevailing winds blowing from the east-southeast or southeast over Singapore and the surrounding region, some smoke haze was transported from Kalimantan and Sumatra to Singapore.

3 Dry conditions are expected over central and southern Sumatra and southern Kalimantan in the coming days. With the prevailing winds forecast to blow from the southeast to south, there is a risk of smoke haze affecting Singapore. The 24-hr PSI for Singapore is forecast to be in the High Moderate – Mid Unhealthy range.

Activity Guidelines

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

– End –

September 14, 2026

Haze Situation Update (14 September 2026)

Singapore, 14 September 2026 – Brief showers fell over a few parts of Singapore today. As at 5pm, the 1-hr PM_2.5 concentration readings were 56 – 115 µg/m³, in Band 2 (Elevated), and the 24-hr PSI was 88 – 117, in the Moderate to Unhealthy range.

Update on Hotspot and Haze Situation

2 Due to a shift in the prevailing winds to blow from east-southeast, moderate to dense smoke plumes from fires in Kalimantan drifted towards Singapore. Some smoke haze was also observed to drift from southern Sumatra.

3 Dry conditions are forecast over Singapore and the surrounding region in the coming days. With the prevailing winds forecast to continue blowing from the southeast to east-southeast, Singapore will likely be affected by smoke haze. The 24-hr PSI for Singapore is forecast to be in the High Moderate – Mid Unhealthy range.

Activity Guidelines

Areas with lighter smoke haze are not indicated as they cannot be clearly discerned from satellite imagery.

– End –

September 13, 2026

Haze Situation Update (13 September 2026)

Singapore, 13 September 2026 – It was dry over Singapore today. As at 5pm, the 1-hr PM_2.5 concentration readings were 34 – 57 µg/m³, in Band 1 – 2 (Normal to Elevated), and the 24-hr PSI was 68 – 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, some of which were observed to be drifting towards Singapore. Smoke plumes were also observed in southern Sumatra.

3 Showers are forecast over northern Sumatra and northwestern Borneo in the coming days. Dry weather conditions are expected to persist over Kalimantan and central and southern Sumatra. With the prevailing winds blowing from the southeast or south, 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

Areas with lighter smoke haze are not indicated as they cannot be clearly discerned from satellite imagery.

– End –

September 12, 2026

Haze Situation Update (12 September 2026)

Singapore, 12 September 2026 – There were showers mainly over the southern and western parts of Singapore today. As at 5pm, the 1-hr PM_2.5 concentration readings were 17 – 39 µg/m³, in Band 1 (Normal), and the 24-hr PSI was 66 – 78, in the Moderate range.

Update on Hotspot and Haze Situation

2 Moderate to dense smoke plumes continue to be observed from fires in southern Sumatra and Kalimantan. Some haze from Kalimantan was observed to drift towards Singapore.

3 Showers can be expected to continue over northern Sumatra over the next few days. Dry conditions are however forecast to return over central Sumatra and persist over Kalimantan and southern Sumatra. Under the prevailing southeasterly or southerly winds, 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

Areas with lighter smoke haze are not indicated as they cannot be clearly discerned from satellite imagery.

– End –