Haze in S’pore: Air quality worsens as PSI hits unhealthy range in central, eastern and western regions

NEA said on Sept 26 the air quality in Singapore for the next 24 hours was forecast to be in the moderate range to low-unhealthy range.

Published Sep 27, 2026, 07:16 AM

Updated Sep 27, 2026, 07:16 AM

Air quality in Singapore worsened on Sept 27, with PSI readings in central, eastern, and western regions reaching unhealthy levels, while north and south remained moderate.

The National Environment Agency forecast moderate to low-unhealthy air quality, citing dry conditions in nearby regions and winds bringing haze to Singapore.

NEA advised the public to limit outdoor activities during unhealthy periods, especially vulnerable groups, and to monitor hourly PM2.5 and 24-hour PSI readings for health guidance.

SINGAPORE - The air quality here continued to worsen on Sept 27, with the 24-hour Pollutant Standards Index (PSI) readings in the eastern and western parts of the island entering the unhealthy range, joining the central region.

As at 7am, the 24-hour PSI readings stood at 128 in the central region, 115 in the east and 106 in the west.

Readings in the north ( 89 ) and south ( 95 ) remained in the moderate range. PSI reading for the central region started crossing into the unhealthy range at 8pm on Sept 26 when it hit 104, before inching upwards overnight and peaking at 127 at 3am.

The eastern region entered the unhealthy range (103) at midnight while the western areas (102) followed suit an hour later.

Hourly PM2.5 readings were 29-60 as at 7am on Sept 27.

Air quality is considered unhealthy when the 24-hour PSI is in the range of 101 to 200, while an hourly PM2.5 reading between 56 and 150 indicates an elevated concentration of fine particles.

In its daily haze advisory at about 6pm on Sept 26, the National Environment Agency (NEA) said air quality in Singapore for the next 24 hours was forecast to be in the moderate range to low-unhealthy range.

While some showers are forecast over Singapore and parts of the region overnight and on Sept 27, dry conditions are expected to continue over southern Sumatra, as well as southern and eastern Kalimantan.

Winds forecast to blow from the south-east or south-west could bring smoke haze to Singapore, NEA said.

It advised the public to refer to the hourly PM2.5 readings for immediate activities and 24-hour PSI ones to plan for the day ahead.

For periods when the air quality crosses into the unhealthy range, NEA has advised healthy people to reduce prolonged or strenuous outdoor activities, while vulnerable groups like the elderly, children and pregnant women, as well as people with chronic lung or heart disease, should minimise or avoid such activities altogether.

The PSI first returned to the unhealthy range on Sept 4, the first time since October 2023. Readings in the central region were the highest, peaking at 154 on Sept 15.

In its fortnightly weather forecast on Sept 16, the Meteorological Service Singapore said more showers are expected in the second half of the month, than in the first.

新加坡国家环境局 (NEA) 于 9 月 26 日表示，预计未来 24 小时新加坡的空气质量将处于中等至轻微不健康水平。

发布于 2026 年 9 月 27 日上午 7:16

更新于2026年9月27日上午7:16

9月27日，新加坡空气质量恶化，中部、东部和西部地区的空气污染指数（PSI）达到不健康水平，而北部和南部地区则保持中等水平。

国家环境局预测新加坡空气质量将达到中度至轻度不健康水平，原因是附近地区气候干燥，且风向将雾霾带到新加坡。

新加坡国家环境局建议公众在空气质量不佳时期限制户外活动，尤其是弱势群体，并监测每小时的 PM2.5 和 24 小时的 PSI 读数以获取健康指导。

新加坡——9月27日，新加坡的空气质量持续恶化，岛屿东部和西部地区的24小时污染物标准指数（PSI）读数进入不健康范围，与中部地区的情况类似。

截至早上 7 点，中部地区的 24 小时 PSI 读数为 128，东部地区为 115，西部地区为 106。

北部（89）和南部（95）的读数仍处于中等水平。中部地区的空气污染指数（PSI）读数于9月26日晚上8点开始进入不健康范围，达到104，之后在夜间缓慢上升，并在凌晨3点达到峰值127。

东部地区午夜时分气温进入不健康范围（103），而西部地区（102）一小时后也进入不健康范围。

9 月 27 日上午 7 点，PM2.5 小时读数为 29-60。

当 24 小时 PSI 值在 101 至 200 之间时，空气质量被认为是不健康的；而每小时 PM2.5 读数在 56 至 150 之间则表明细颗粒物浓度升高。

新加坡国家环境局 (NEA) 在 9 月 26 日下午 6 点左右发布的每日雾霾预警中表示，预计新加坡未来 24 小时的空气质量将处于中等至轻微不健康水平。

虽然预计新加坡和该地区部分地区在夜间和 9 月 27 日会有阵雨，但苏门答腊南部以及加里曼丹南部和东部预计将继续保持干燥天气。

新加坡国家环境局表示，预计东南风或西南风可能会给新加坡带来烟雾。

它建议公众参考每小时的 PM2.5 读数来安排当日活动，并参考 24 小时的 PSI 读数来计划接下来的一天。

当空气质量达到不健康水平时，新加坡国家环境局建议健康人群减少长时间或剧烈的户外活动，而老年人、儿童、孕妇等弱势群体以及患有慢性肺病或心脏病的人，则应尽量减少或完全避免此类活动。

9 月 4 日，PSI 指数首次回到不健康范围，这是自 2023 年 10 月以来的首次。中部地区的读数最高，9 月 15 日达到峰值 154。

新加坡气象局在9月16日发布的双周天气预报中表示，预计本月下半月降雨量将比上半月更多。