Haze in Singapore: Normal PM2.5 and good to moderate 24-hour PSI readings islandwide

Hourly PM2.5 readings remained in the normal range and the 24-hour PSI stayed in the good-to-moderate band across the island on Oct 26 and overnight into the morning of Oct 27.

Published Oct 27, 2026, 06:15 AM

Updated Oct 27, 2026, 06:15 AM

Singapore’s air stayed healthy overnight, with hourly PM2.5 in the normal range and 24-hour PSI at good to moderate levels across all five regions.

At 6am on Oct 27, PM2.5 was 14 to 32 and PSI was 62 to 72. The NEA said air was better after weeks of bad haze.

NEA forecast PSI of 60 to 90 on Oct 27 and said haze risk is low. Showers and wet weather should help keep smoke and hotspots down.

SINGAPORE – The air quality here has remained healthy overnight, with the hourly PM2.5 readings remaining in the normal range and the 24-hour PSI in the good-to-moderate band across the island.

At 6am on Oct 27, the one-hour PM2.5 readings in all the five regions of Singapore ranged between 14 and 32, while the 24-hour PSI stood between 62 and 72.

PM2.5 readings are gauged hourly and reflect the current air quality. Scores from zero to 55 represent normal values, and those between 56 and 150 indicate an elevated concentration of fine particles.

Air quality is considered good to moderate when the PSI – a 24-hour rolling average of six key air pollutants – is in the range of zero to 100, and unhealthy when it is in the range of 101 to 200.

When air quality breaches the “unhealthy” threshold, people, especially the elderly, children and those with health issues, should start scaling down outdoor activities.

Following weeks of bad air quality, residents in Singapore saw some respite over the weekend when the PM2.5 levels stood in the normal range for most parts of the country although the 24-hour PSI readings remained unhealthy in some areas.

In its daily haze advisory on the evening of Oct 26, the National Environment Agency (NEA) said the PSI for Oct 27 is forecast to be in the good-to-moderate range of 60 to 90.

Smoke haze was observed but confined over Kalimantan on Oct 26, NEA said, adding that it was cloudy over Singapore.

NEA said the likelihood of smoke haze affecting the Republic on Oct 27 is low as prevailing winds are expected to blow from the north-east or south-east. Showers are also expected over and in the vicinity of Singapore.

For Oct 28 and 29, winds are forecast to become variable and showers are expected over Singapore and in the surrounding region.

“The wet conditions should help keep hotspot and smoke haze activity suppressed,” NEA said.

National Environment Agency

10 月 26 日及 10 月 27 日凌晨，全岛 PM2.5 小时读数保持在正常范围内，24 小时 PSI 指数保持在良好至中等水平。

发布于 2026 年 10 月 27 日上午 6:15

更新于2026年10月27日上午6:15

新加坡一夜之间空气质量良好，五个地区的每小时 PM2.5 浓度均在正常范围内，24 小时空气污染指数 (PSI) 也均处于良好至中等水平。

10月27日早上6点，PM2.5浓度为14至32，空气污染指数为62至72。国家环境局表示，经过数周的严重雾霾后，空气质量有所改善。

国家环境局预测10月27日空气污染指数（PSI）为60至90，并表示雾霾风险较低。阵雨和潮湿天气应有助于减少烟雾和热点区域。

新加坡——昨夜新加坡的空气质量保持良好，PM2.5 小时读数保持在正常范围内，全岛 24 小时空气污染指数 (PSI) 处于良好至中等水平。

10 月 27 日上午 6 点，新加坡五个地区的 PM2.5 一小时读数在 14 至 32 之间，而 24 小时 PSI 指数在 62 至 72 之间。

PM2.5读数每小时测量一次，反映当前的空气质量。0到55之间的数值代表正常值，56到150之间的数值则表示细颗粒物浓度升高。

当 PSI（六种主要空气污染物的 24 小时滚动平均值）在 0 到 100 之间时，空气质量被认为是良好到中等；当 PSI 在 101 到 200 之间时，空气质量被认为是不健康的。

当空气质量超过“不健康”阈值时，人们，特别是老年人、儿童和有健康问题的人，应该开始减少户外活动。

经历了数周糟糕的空气质量后，新加坡居民在周末迎来了一丝喘息之机，该国大部分地区的 PM2.5 水平处于正常范围内，尽管一些地区的 24 小时 PSI 读数仍然不健康。

国家环境局 (NEA) 在 10 月 26 日晚间发布的每日雾霾预警中表示，10 月 27 日的空气污染指数 (PSI) 预计在 60 至 90 之间，属于良好至中等水平。

新加坡国家环境局表示，10月26日加里曼丹岛出现烟雾，但仅限于此；新加坡上空阴云密布。

新加坡国家环境局表示，10月27日新加坡受烟霾影响的可能性较低，因为预计盛行风向为东北风或东南风。新加坡及其周边地区预计会有阵雨。

预计10月28日和29日，新加坡及周边地区风向将变得不稳定，并有阵雨。

国家环境局表示：“潮湿的环境应该有助于抑制热点和烟雾活动。”

国家环境局