SmogRank / Thailand / Saraburi

Air quality in Saraburi

Saraburi, Thailand. PM2.5 from 1 reference monitor, updated hourly.

2AQHI+
Low risk

Latest hour (04:00 UTC), 1.3× the WHO 24-hour guideline. PM2.5 18.9 µg/m³.

Rank, worst first

24 hours–not enough data
7 days#1,099of 2,604, at 1 AQHI+ (8.5 µg/m³)
30 days#610of 2,624, at 2 AQHI+ (11.2 µg/m³)
This year#473of 2,447, at 3 AQHI+ (20.7 µg/m³)

Why it ranks here

Cleaner than usual this week. The last 7 days averaged 8.5 µg/m³, well below its typical 22.2; rain or wind often clears the air for a while.
Seasonal. Over the past year its worst months were January, averaging up to 37.8 µg/m³ against 10.1 in its cleanest month. Seasonal peaks usually come from heating, crop burning, fire or dust seasons.

Based on Saraburi's own measurements; causes are the usual kinds for a pattern like this, not a confirmed source.

The last 12 months, day by day

1102031Nov 2025DecJan 2026FebMarAprMayJunJulAugSepOct2025-11-01: no data2025-11-02: no data2025-11-03: no data2025-11-04: no data2025-11-05: no data2025-11-06: no data2025-11-07: no data2025-11-08: no data2025-11-09: no data2025-11-10: no data2025-11-11: no data2025-11-12: no data2025-11-13: no data2025-11-14: no data2025-11-15: no data2025-11-16: no data2025-11-17: no data2025-11-18: no data2025-11-19: no data2025-11-20: no data2025-11-21: no data2025-11-22: no data2025-11-23: no data2025-11-24: no data2025-11-25: no data2025-11-26: no data2025-11-27: no data2025-11-28: no data2025-11-29: 20.1 µg/m³2025-11-30: 22.0 µg/m³2025-12-01: 26.6 µg/m³2025-12-02: 27.2 µg/m³2025-12-03: 26.4 µg/m³2025-12-04: 23.7 µg/m³2025-12-05: 22.0 µg/m³2025-12-06: 22.3 µg/m³2025-12-07: 22.5 µg/m³2025-12-08: 23.2 µg/m³2025-12-09: 23.7 µg/m³2025-12-10: 24.0 µg/m³2025-12-11: no data2025-12-12: no data2025-12-13: no data2025-12-14: no data2025-12-15: no data2025-12-16: no data2025-12-17: no data2025-12-18: 21.2 µg/m³2025-12-19: 25.0 µg/m³2025-12-20: 34.1 µg/m³2025-12-21: 30.6 µg/m³2025-12-22: 24.4 µg/m³2025-12-23: 24.6 µg/m³2025-12-24: 27.0 µg/m³2025-12-25: 29.0 µg/m³2025-12-26: 21.9 µg/m³2025-12-27: 18.7 µg/m³2025-12-28: 22.2 µg/m³2025-12-29: 25.8 µg/m³2025-12-30: 31.6 µg/m³2025-12-31: 39.7 µg/m³2026-01-01: 44.2 µg/m³2026-01-02: 33.4 µg/m³2026-01-03: 22.4 µg/m³2026-01-04: 24.6 µg/m³2026-01-05: 28.1 µg/m³2026-01-06: 24.1 µg/m³2026-01-07: 19.8 µg/m³2026-01-08: 22.0 µg/m³2026-01-09: 27.6 µg/m³2026-01-10: 33.0 µg/m³2026-01-11: 33.8 µg/m³2026-01-12: 32.8 µg/m³2026-01-13: 44.2 µg/m³2026-01-14: 47.6 µg/m³2026-01-15: 53.1 µg/m³2026-01-16: 60.1 µg/m³2026-01-17: 51.2 µg/m³2026-01-18: 41.8 µg/m³2026-01-19: 47.4 µg/m³2026-01-20: 48.7 µg/m³2026-01-21: 42.6 µg/m³2026-01-22: 45.3 µg/m³2026-01-23: 31.9 µg/m³2026-01-24: 31.1 µg/m³2026-01-25: 32.3 µg/m³2026-01-26: 48.9 µg/m³2026-01-27: 51.4 µg/m³2026-01-28: 36.6 µg/m³2026-01-29: 35.8 µg/m³2026-01-30: no data2026-01-31: no data2026-02-01: no data2026-02-02: no data2026-02-03: no data2026-02-04: no data2026-02-05: no data2026-02-06: no data2026-02-07: 27.3 µg/m³2026-02-08: 27.5 µg/m³2026-02-09: 26.5 µg/m³2026-02-10: no data2026-02-11: 36.6 µg/m³2026-02-12: 38.0 µg/m³2026-02-13: 33.0 µg/m³2026-02-14: 30.1 µg/m³2026-02-15: 29.5 µg/m³2026-02-16: 33.2 µg/m³2026-02-17: 33.3 µg/m³2026-02-18: 31.0 µg/m³2026-02-19: 25.6 µg/m³2026-02-20: 25.8 µg/m³2026-02-21: 25.0 µg/m³2026-02-22: 28.2 µg/m³2026-02-23: 27.2 µg/m³2026-02-24: 24.8 µg/m³2026-02-25: 22.6 µg/m³2026-02-26: 29.3 µg/m³2026-02-27: 22.7 µg/m³2026-02-28: 15.1 µg/m³2026-03-01: 9.6 µg/m³2026-03-02: 14.3 µg/m³2026-03-03: 20.9 µg/m³2026-03-04: 31.1 µg/m³2026-03-05: 32.0 µg/m³2026-03-06: 30.0 µg/m³2026-03-07: 29.2 µg/m³2026-03-08: 28.9 µg/m³2026-03-09: 31.7 µg/m³2026-03-10: 27.0 µg/m³2026-03-11: 20.1 µg/m³2026-03-12: 29.6 µg/m³2026-03-13: no data2026-03-14: no data2026-03-15: 19.3 µg/m³2026-03-16: no data2026-03-17: 27.3 µg/m³2026-03-18: 27.8 µg/m³2026-03-19: 24.8 µg/m³2026-03-20: 25.3 µg/m³2026-03-21: no data2026-03-22: 26.0 µg/m³2026-03-23: 25.4 µg/m³2026-03-24: 24.0 µg/m³2026-03-25: 24.6 µg/m³2026-03-26: 26.3 µg/m³2026-03-27: 30.9 µg/m³2026-03-28: no data2026-03-29: 25.9 µg/m³2026-03-30: 23.7 µg/m³2026-03-31: 23.9 µg/m³2026-04-01: 25.0 µg/m³2026-04-02: 27.1 µg/m³2026-04-03: 27.2 µg/m³2026-04-04: 30.0 µg/m³2026-04-05: 31.0 µg/m³2026-04-06: 35.0 µg/m³2026-04-07: 33.4 µg/m³2026-04-08: 34.1 µg/m³2026-04-09: 31.9 µg/m³2026-04-10: 30.2 µg/m³2026-04-11: 30.1 µg/m³2026-04-12: 30.9 µg/m³2026-04-13: 28.4 µg/m³2026-04-14: 28.2 µg/m³2026-04-15: 30.3 µg/m³2026-04-16: 28.6 µg/m³2026-04-17: 29.6 µg/m³2026-04-18: 28.5 µg/m³2026-04-19: 29.9 µg/m³2026-04-20: 27.2 µg/m³2026-04-21: 25.5 µg/m³2026-04-22: 28.0 µg/m³2026-04-23: 28.7 µg/m³2026-04-24: 25.6 µg/m³2026-04-25: 26.1 µg/m³2026-04-26: 22.9 µg/m³2026-04-27: 24.0 µg/m³2026-04-28: 23.5 µg/m³2026-04-29: no data2026-04-30: no data2026-05-01: 23.7 µg/m³2026-05-02: 23.9 µg/m³2026-05-03: 23.4 µg/m³2026-05-04: 23.1 µg/m³2026-05-05: 18.6 µg/m³2026-05-06: 21.3 µg/m³2026-05-07: 23.0 µg/m³2026-05-08: 15.8 µg/m³2026-05-09: 21.7 µg/m³2026-05-10: 25.6 µg/m³2026-05-11: 26.9 µg/m³2026-05-12: 24.4 µg/m³2026-05-13: 19.0 µg/m³2026-05-14: 14.3 µg/m³2026-05-15: 13.2 µg/m³2026-05-16: 11.4 µg/m³2026-05-17: 10.5 µg/m³2026-05-18: 7.6 µg/m³2026-05-19: 10.0 µg/m³2026-05-20: 10.1 µg/m³2026-05-21: 12.6 µg/m³2026-05-22: 18.3 µg/m³2026-05-23: 16.3 µg/m³2026-05-24: 14.2 µg/m³2026-05-25: 13.5 µg/m³2026-05-26: 14.4 µg/m³2026-05-27: 14.1 µg/m³2026-05-28: 12.9 µg/m³2026-05-29: 18.3 µg/m³2026-05-30: 16.6 µg/m³2026-05-31: 16.9 µg/m³2026-06-01: 13.5 µg/m³2026-06-02: 12.5 µg/m³2026-06-03: 13.8 µg/m³2026-06-04: 10.1 µg/m³2026-06-05: 9.0 µg/m³2026-06-06: 9.6 µg/m³2026-06-07: 8.2 µg/m³2026-06-08: 8.1 µg/m³2026-06-09: 9.9 µg/m³2026-06-10: 9.9 µg/m³2026-06-11: 8.4 µg/m³2026-06-12: 6.5 µg/m³2026-06-13: no data2026-06-14: 10.9 µg/m³2026-06-15: 9.1 µg/m³2026-06-16: 9.8 µg/m³2026-06-17: 8.7 µg/m³2026-06-18: 10.6 µg/m³2026-06-19: 9.2 µg/m³2026-06-20: 8.5 µg/m³2026-06-21: 12.5 µg/m³2026-06-22: 11.0 µg/m³2026-06-23: 14.1 µg/m³2026-06-24: 13.1 µg/m³2026-06-25: 10.4 µg/m³2026-06-26: 8.6 µg/m³2026-06-27: 8.9 µg/m³2026-06-28: 9.4 µg/m³2026-06-29: 8.7 µg/m³2026-06-30: 9.9 µg/m³2026-07-01: 12.5 µg/m³2026-07-02: no data2026-07-03: no data2026-07-04: no data2026-07-05: no data2026-07-06: no data2026-07-07: no data2026-07-08: no data2026-07-09: no data2026-07-10: no data2026-07-11: no data2026-07-12: no data2026-07-13: no data2026-07-14: no data2026-07-15: no data2026-07-16: no data2026-07-17: no data2026-07-18: no data2026-07-19: no data2026-07-20: no data2026-07-21: no data2026-07-22: no data2026-07-23: no data2026-07-24: no data2026-07-25: no data2026-07-26: no data2026-07-27: no data2026-07-28: no data2026-07-29: no data2026-07-30: 13.0 µg/m³2026-07-31: 11.8 µg/m³2026-08-01: no data2026-08-02: no data2026-08-03: 12.2 µg/m³2026-08-04: 13.0 µg/m³2026-08-05: 10.3 µg/m³2026-08-06: 8.3 µg/m³2026-08-07: 8.6 µg/m³2026-08-08: 8.9 µg/m³2026-08-09: 8.9 µg/m³2026-08-10: 9.7 µg/m³2026-08-11: 9.2 µg/m³2026-08-12: 12.2 µg/m³2026-08-13: 12.9 µg/m³2026-08-14: 11.6 µg/m³2026-08-15: 15.7 µg/m³2026-08-16: 14.6 µg/m³2026-08-17: 14.4 µg/m³2026-08-18: 12.7 µg/m³2026-08-19: 12.3 µg/m³2026-08-20: 11.0 µg/m³2026-08-21: 9.2 µg/m³2026-08-22: 11.2 µg/m³2026-08-23: 8.4 µg/m³2026-08-24: 13.1 µg/m³2026-08-25: 17.2 µg/m³2026-08-26: 11.1 µg/m³2026-08-27: 10.6 µg/m³2026-08-28: 13.9 µg/m³2026-08-29: 10.1 µg/m³2026-08-30: 9.8 µg/m³2026-08-31: 9.7 µg/m³2026-09-01: 11.9 µg/m³2026-09-02: 11.2 µg/m³2026-09-03: 13.9 µg/m³2026-09-04: 17.5 µg/m³2026-09-05: 18.8 µg/m³2026-09-06: 15.5 µg/m³2026-09-07: 9.9 µg/m³2026-09-08: 9.9 µg/m³2026-09-09: 11.0 µg/m³2026-09-10: 14.1 µg/m³2026-09-11: 10.4 µg/m³2026-09-12: 12.0 µg/m³2026-09-13: 17.3 µg/m³2026-09-14: 17.8 µg/m³2026-09-15: 12.8 µg/m³2026-09-16: 8.0 µg/m³2026-09-17: 8.1 µg/m³2026-09-18: 7.2 µg/m³2026-09-19: 9.5 µg/m³2026-09-20: 10.1 µg/m³2026-09-21: 9.6 µg/m³2026-09-22: 8.8 µg/m³2026-09-23: 13.6 µg/m³2026-09-24: 10.8 µg/m³2026-09-25: 6.3 µg/m³2026-09-26: 5.4 µg/m³2026-09-27: 3.3 µg/m³2026-09-28: 4.3 µg/m³2026-09-29: 7.5 µg/m³2026-09-30: 16.2 µg/m³2026-10-01: 16.2 µg/m³
156 of 254 measured days were over the WHO 24-hour guideline (15 µg/m³). One row per month, one square per local day.
Low risk1–3
Moderate risk4–6
High risk7–10
Very high risk10+

Canada's AQHI+ for PM2.5 (1 point per 10 µg/m³), which is defined on hourly values. Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Last 4 days, hour by hour

15302026-10-02 01:00 UTC: 17.4 µg/m³2026-10-02 02:00 UTC: 17.8 µg/m³2026-10-02 03:00 UTC: 18.3 µg/m³2026-10-02 04:00 UTC: 18.9 µg/m³Sep 29Sep 30Oct 1Oct 2
Times in UTC. Dashed line: WHO 24-hour guideline (15 µg/m³).

Where it stood each day

Top 10Top 100#1#10#100#1,000#2,835NovDecJanFebMarAprMayJunJulAugSep#233
Its rank on each day's world board, #1 being the most polluted city that day. The scale is logarithmic: each step down is ten times as many cities. See it among every city.

2026 against 2025, month by month

15Jan 2026: 37.8 µg/m³JanFeb 2025: 35.0 µg/m³Feb 2026: 28.2 µg/m³FebMar 2025: 29.6 µg/m³Mar 2026: 25.4 µg/m³MarApr 2025: 18.6 µg/m³Apr 2026: 28.6 µg/m³AprMay 2025: 10.4 µg/m³May 2026: 17.3 µg/m³MayJun 2025: 10.3 µg/m³Jun 2026: 10.1 µg/m³JunJulAug 2026: 11.4 µg/m³AugSep 2025: 10.5 µg/m³Sep 2026: 11.1 µg/m³SepOctNovDec 2025: 25.7 µg/m³Dec
Faded bars: 2025. A month shows once it has 10 measured days.

This week against past years

This weekThis week: 8.5 µg/m³8.520252025: 10.6 µg/m³10.6
Mean PM2.5 for 25 Sept to 1 Oct in each year. Dashed line: WHO 24-hour guideline.

Monitors

StationOperatorType
Khao Noi Fire StationPermission requested (Thailand PCD, Air4Thai, 2026-10-01)Air4ThaiReference

The city's value is the median of its reference monitors each hour, when at least a third of them report (three are always enough); low-cost sensors are listed but not counted when reference monitors exist. Data via OpenAQ; licences as listed. How we rank. Embed this on your site.

Use this page

SmogRank, PM2.5 daily means, Saraburi, Thailand, 2 Oct 2025 – 1 Oct 2026, smogrank.com/th/saraburi (accessed 2 Oct 2026).

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Other cities in Thailand

30-day averages, AQHI+. All of Thailand.

Updated 2026-10-02 05:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the Canada AQHI+ PM2.5 sub-index.