28 Oct – 3 Nov 2026 · Singapore

Singapore weekly air quality

US AQI · PM2.5 · 24-hour source averages

86.3Weekly mean AQI · Moderate

Official PSI mean: 68.8. Calculated separately from reported official observations.

Each NEA 24-hour PM2.5 concentration is converted using US AQI breakpoints. This is not an official all-pollutant AQI or NowCast. Calculation details

840 eligible observations · 0 excluded.

-37.3 AQI compared with the previous week’s eligible mean of 123.6.

Peak AQI: 124 at West · 1 Nov 2026, 11:00 (UTC+8).

Daily US AQI (PM2.5)

Low 62High 124AQI

28 Oct3 Nov

3 NovDaily mean · Peak 11087.6Avg AQI

Based on 120 hourly readings.

Daily and hourly means use eligible observations across the selected locations. Each observation uses a 24-hour PM2.5 average.

Export AQI CSV

Means and peaks use only converted observations. Missing days remain gaps.

Day	Mean AQI	Peak AQI	Eligible / excluded
2026-10-28	92.9Moderate	105	120 / 0
2026-10-29	90.6Moderate	102	120 / 0
2026-10-30	73.4Moderate	96	120 / 0
2026-10-31	74.5Moderate	99	120 / 0
2026-11-01	94.5Moderate	124	120 / 0
2026-11-02	90.4Moderate	122	120 / 0
2026-11-03	87.6Moderate	110	120 / 0

Hourly means (UTC+8)

Day	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23
2026-10-28	84	85.4	87	87.8	89.2	90.4	91.2	92.6	93	95.2	96.4	97.4	97.6	97	96.8	96.4	94.6	94.2	93.8	93.2	93.2	93.8	94.6	94.2
2026-10-29	93	92.6	92.4	91.8	91	91	91.4	91.4	91.4	91.4	91.8	92	92	92.4	92.8	91	90.2	89.8	88.6	89	88.2	87.4	86.2	85.6
2026-10-30	84.4	83.4	82.6	81.8	80.4	79.2	77.6	76.6	75.4	74	72	70.4	68.8	68	67.6	68	68.4	68.8	68.8	69.2	68.4	68.4	69.6	70
2026-10-31	70.4	70.4	70.4	70.2	70.6	71	72	72.2	72.6	73	73.2	73.2	74	74.8	75.6	76	76.8	77	76.6	77.4	79	79.8	80.6	81.6
2026-11-01	83	84.8	86.4	88	89.4	91	91.8	93	93.8	95.6	96.8	98	99	99.2	99.2	99.4	99.2	98.4	98.4	98.4	96.4	97.2	96	96
2026-11-02	94.8	94.8	94	93.8	93.6	93.6	92	92	92	90.8	90.4	90	89.6	89.2	89.6	89	88	87.2	87.2	87.6	87.2	87.6	87.6	87.8
2026-11-03	87.8	87.8	87.8	87.8	88.2	88	87.8	88.6	89	89.4	88.4	88	87.2	86.4	86.4	86.4	87.2	88.4	88.4	87.6	87.6	86.4	86	84.8

Observation categories

Good: 0

Moderate: 735

Unhealthy for Sensitive Groups: 105

Unhealthy: 0

Very Unhealthy: 0

Hazardous: 0

US AQI scale
AQI	Category
0–50	Good
51–100	Moderate
101–150	Unhealthy for Sensitive Groups
151–200	Unhealthy
201–300	Very Unhealthy
301+	Hazardous

Regions by US AQI

Sorted by eligible mean AQI. Counts show the available coverage.

Location	Mean AQI	Peak AQI	Official PSI mean	Eligible / excluded
West	101.1Unhealthy for Sensitive Groups	124	76.9	168 / 0
Central	85.4Moderate	105	68.5	168 / 0
North	84.8Moderate	105	68.1	168 / 0
South	80.8Moderate	97	65.9	168 / 0
East	79.2Moderate	96	64.7	168 / 0

Singapore air quality.
Weekly haze review.

28 Oct – 3 Nov 20267 days · 5 NEA Regions

Weekly Pollutant Standards Index (PSI) and PM2.5 air quality report for Singapore

During the week of 28 Oct – 3 Nov 2026, Singapore recorded an average PSI of 68.8 (Moderate) across reporting regions. Average 1-hour PM2.5 was 27.5 µg/m³.

National weekly average

68.8PSI

Moderate

22.7 PSI cleaner than the week before, which averaged 91.5

Daily averages61.3 – 73.5 PSIWed → Tue

Explore the week

Overall weekly PSI: 68.8Moderate airAverage across reporting regions
1-hour PM2.5 average: 27.5µg/m³Fine particulate matter
Cleanest region: EastAvg PSI: 64.7Lowest weekly regional average
Regions reporting: 5 of 5Central, North, South, East, WestNEA air quality network

Seven days of Singapore air quality

Daily movement of 24-hour PSI and regional variance

Archived API · Malaysia TimePoint, tap or use ← → to inspect

National averageStation peakMin–max rangeAPI bands7 of 7 points · 0–100 API

The average follows all available readings each day. The range spans the lowest and highest station readings; a national average can hide local peaks.

View chart data as a table

Archived national API, daily
Date / time	Average	Minimum	Peak
Wed, 28 Oct	72.9	64	79
Thu, 29 Oct	71.6	66	78
Fri, 30 Oct	61.3	55	75
Sat, 31 Oct	62	55	77
Sun, 1 Nov	73.5	63	89
Mon, 2 Nov	71	63	87
Tue, 3 Nov	69.6	61	81

Singapore regions ranked by weekly average

Air quality across Central, North, South, East and West Singapore

East Region64.7 PSI
Moderate · PM2.5: 23.6 µg/m³Peak PSI: 74
South Region65.9 PSI
Moderate · PM2.5: 25.1 µg/m³Peak PSI: 76
North Region68.1 PSI
Moderate · PM2.5: 26.5 µg/m³Peak PSI: 79
Central Region68.5 PSI
Moderate · PM2.5: 27.3 µg/m³Peak PSI: 79
West Region76.9 PSI
Moderate · PM2.5: 35 µg/m³Peak PSI: 89

The week, hour by hour

Hourly Singapore air quality trend across seven days

Hourly levels reflect regional atmospheric dispersion and transboundary wind patterns recorded across the island.

0255075100APIBrighter cells ran hazier than the rest of this week (57.8 – 76.6 API)

Haziest hour of the week: Sun at 13:00 MYT, averaging API 76.6 nationwide.

View the hourly figures as a table

National average API by hour, Malaysia Time
Day	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23
Wed	67.8	68.8	69.2	69.8	70.6	71.2	72.2	72.8	73.6	74.4	75	75.4	75.6	75.2	74.8	74.8	74.2	73.6	73.6	73.2	73.4	73.6	73.8	73.4
Thu	73.2	72.8	72.4	72.6	72	72.4	72.2	72	72	72	72.2	72.2	72.4	72.4	72.6	72	71.4	71	70.6	70.8	70.2	70	69.2	68.6
Fri	68.2	67.4	66.8	66	65.4	64.6	63.6	63	62.2	61.4	60.4	59.4	58.4	57.8	57.8	58	58.6	58.8	58.8	58.8	58.4	58.6	59	59.2
Sat	59.4	59.6	59.6	59.4	59.4	59.8	60.2	60.6	61	61.2	61.2	61.4	61.6	61.8	62.4	62.8	63.2	63.4	63.4	64	64.8	65	65.8	66.4
Sun	67.2	67.8	68.8	70	70.6	71.4	72	72.8	73.2	74	74.6	75.6	76	76.6	76.2	76.2	75.8	76	75.4	75.2	75	74.6	74.2	73.8
Mon	73.6	73.6	73.2	72.8	72.8	72.6	72	71.8	71.4	71.4	71.4	71	70.8	70.4	70.4	70.2	69.6	69.2	69.2	69.2	69.4	69.4	69.4	69.4
Tue	69.4	69.8	69.8	69.8	69.6	69.8	69.8	69.8	70.2	70.4	70.2	69.8	69.2	69.2	69	69	69.2	69.8	70.2	70	69.6	69.2	68.6	68.2