SmogRank / Thailand / Lamphun

Air quality in Lamphun

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

14.0µg/m³
Fair

Latest hour (04:00 UTC), 0.9× the WHO 24-hour guideline.

Rank, worst first

24 hours–not enough data
7 days#778of 2,604, at 9.9 µg/m³
30 days#634of 2,624, at 10.8 µg/m³
This year#289of 2,447, at 31.1 µg/m³

Why it ranks here

Cleaner than usual this week. The last 7 days averaged 9.9 µg/m³, well below its typical 26.8; rain or wind often clears the air for a while.
Seasonal. Over the past year its worst months were April, averaging up to 82.3 µg/m³ against 10.2 in its cleanest month. Seasonal peaks usually come from heating, crop burning, fire or dust seasons.

Based on Lamphun'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: 13.5 µg/m³2025-11-20: 13.0 µg/m³2025-11-21: 14.5 µg/m³2025-11-22: 19.1 µg/m³2025-11-23: 22.1 µg/m³2025-11-24: 23.3 µg/m³2025-11-25: 21.9 µg/m³2025-11-26: 28.2 µg/m³2025-11-27: 31.0 µg/m³2025-11-28: 32.9 µg/m³2025-11-29: 34.5 µg/m³2025-11-30: 35.9 µg/m³2025-12-01: 38.5 µg/m³2025-12-02: 40.4 µg/m³2025-12-03: 43.6 µg/m³2025-12-04: 38.2 µg/m³2025-12-05: 33.2 µg/m³2025-12-06: 33.9 µg/m³2025-12-07: 30.8 µg/m³2025-12-08: 30.2 µg/m³2025-12-09: 28.0 µg/m³2025-12-10: 31.6 µg/m³2025-12-11: 32.1 µg/m³2025-12-12: 29.5 µg/m³2025-12-13: 27.5 µg/m³2025-12-14: 24.1 µg/m³2025-12-15: 23.8 µg/m³2025-12-16: 21.6 µg/m³2025-12-17: 26.6 µg/m³2025-12-18: 30.8 µg/m³2025-12-19: 29.4 µg/m³2025-12-20: 29.4 µg/m³2025-12-21: 30.9 µg/m³2025-12-22: 30.4 µg/m³2025-12-23: 32.4 µg/m³2025-12-24: 33.6 µg/m³2025-12-25: 31.3 µg/m³2025-12-26: 30.7 µg/m³2025-12-27: 31.6 µg/m³2025-12-28: 32.5 µg/m³2025-12-29: 31.2 µg/m³2025-12-30: 33.0 µg/m³2025-12-31: 36.8 µg/m³2026-01-01: 41.8 µg/m³2026-01-02: 37.6 µg/m³2026-01-03: 32.3 µg/m³2026-01-04: 27.7 µg/m³2026-01-05: 27.4 µg/m³2026-01-06: 28.5 µg/m³2026-01-07: 31.2 µg/m³2026-01-08: 32.1 µg/m³2026-01-09: 30.0 µg/m³2026-01-10: 32.3 µg/m³2026-01-11: 33.7 µg/m³2026-01-12: 38.1 µg/m³2026-01-13: 37.7 µg/m³2026-01-14: 40.2 µg/m³2026-01-15: 42.0 µg/m³2026-01-16: 31.4 µg/m³2026-01-17: 29.1 µg/m³2026-01-18: 26.0 µg/m³2026-01-19: 24.9 µg/m³2026-01-20: 23.7 µg/m³2026-01-21: 25.9 µg/m³2026-01-22: 26.8 µg/m³2026-01-23: 29.8 µg/m³2026-01-24: 33.1 µg/m³2026-01-25: 32.0 µg/m³2026-01-26: 29.6 µg/m³2026-01-27: 30.5 µg/m³2026-01-28: 32.1 µg/m³2026-01-29: 34.6 µg/m³2026-01-30: 36.0 µg/m³2026-01-31: 35.8 µg/m³2026-02-01: 39.6 µg/m³2026-02-02: 34.7 µg/m³2026-02-03: 29.8 µg/m³2026-02-04: 24.0 µg/m³2026-02-05: 25.0 µg/m³2026-02-06: 26.6 µg/m³2026-02-07: 29.3 µg/m³2026-02-08: 28.8 µg/m³2026-02-09: 29.5 µg/m³2026-02-10: 26.2 µg/m³2026-02-11: 26.1 µg/m³2026-02-12: 23.9 µg/m³2026-02-13: 24.0 µg/m³2026-02-14: 28.1 µg/m³2026-02-15: 34.5 µg/m³2026-02-16: 35.9 µg/m³2026-02-17: 35.9 µg/m³2026-02-18: 42.4 µg/m³2026-02-19: 43.1 µg/m³2026-02-20: 34.3 µg/m³2026-02-21: 31.5 µg/m³2026-02-22: 30.3 µg/m³2026-02-23: 32.0 µg/m³2026-02-24: 30.0 µg/m³2026-02-25: 17.9 µg/m³2026-02-26: 12.7 µg/m³2026-02-27: 21.4 µg/m³2026-02-28: 34.2 µg/m³2026-03-01: 44.9 µg/m³2026-03-02: 47.5 µg/m³2026-03-03: 65.1 µg/m³2026-03-04: 90.6 µg/m³2026-03-05: 89.4 µg/m³2026-03-06: 74.5 µg/m³2026-03-07: 59.1 µg/m³2026-03-08: 48.2 µg/m³2026-03-09: 50.8 µg/m³2026-03-10: 54.5 µg/m³2026-03-11: 34.6 µg/m³2026-03-12: 27.7 µg/m³2026-03-13: 28.4 µg/m³2026-03-14: 21.3 µg/m³2026-03-15: 25.3 µg/m³2026-03-16: 27.3 µg/m³2026-03-17: 27.5 µg/m³2026-03-18: 31.5 µg/m³2026-03-19: 29.9 µg/m³2026-03-20: 29.5 µg/m³2026-03-21: no data2026-03-22: 41.5 µg/m³2026-03-23: 32.2 µg/m³2026-03-24: 50.7 µg/m³2026-03-25: 71.7 µg/m³2026-03-26: 61.6 µg/m³2026-03-27: 73.9 µg/m³2026-03-28: 79.9 µg/m³2026-03-29: 114.0 µg/m³2026-03-30: 87.9 µg/m³2026-03-31: 92.7 µg/m³2026-04-01: 108.0 µg/m³2026-04-02: 129.0 µg/m³2026-04-03: 138.0 µg/m³2026-04-04: 146.0 µg/m³2026-04-05: 141.0 µg/m³2026-04-06: 113.0 µg/m³2026-04-07: 112.0 µg/m³2026-04-08: 96.2 µg/m³2026-04-09: 85.8 µg/m³2026-04-10: 75.2 µg/m³2026-04-11: 77.7 µg/m³2026-04-12: 88.3 µg/m³2026-04-13: 90.6 µg/m³2026-04-14: 89.3 µg/m³2026-04-15: 71.1 µg/m³2026-04-16: 66.5 µg/m³2026-04-17: 87.7 µg/m³2026-04-18: 97.0 µg/m³2026-04-19: 82.6 µg/m³2026-04-20: 71.5 µg/m³2026-04-21: 71.5 µg/m³2026-04-22: 75.3 µg/m³2026-04-23: 68.5 µg/m³2026-04-24: 61.1 µg/m³2026-04-25: 49.5 µg/m³2026-04-26: 38.2 µg/m³2026-04-27: 31.2 µg/m³2026-04-28: 37.0 µg/m³2026-04-29: 32.4 µg/m³2026-04-30: 36.7 µg/m³2026-05-01: 31.6 µg/m³2026-05-02: 29.4 µg/m³2026-05-03: 27.9 µg/m³2026-05-04: 36.9 µg/m³2026-05-05: 28.4 µg/m³2026-05-06: 25.9 µg/m³2026-05-07: 24.4 µg/m³2026-05-08: 23.1 µg/m³2026-05-09: 18.6 µg/m³2026-05-10: 15.5 µg/m³2026-05-11: 14.9 µg/m³2026-05-12: 18.2 µg/m³2026-05-13: 14.3 µg/m³2026-05-14: 16.6 µg/m³2026-05-15: 13.8 µg/m³2026-05-16: 11.9 µg/m³2026-05-17: 11.1 µg/m³2026-05-18: 13.8 µg/m³2026-05-19: 15.4 µg/m³2026-05-20: 18.4 µg/m³2026-05-21: 21.4 µg/m³2026-05-22: 21.5 µg/m³2026-05-23: 17.5 µg/m³2026-05-24: 13.5 µg/m³2026-05-25: 12.3 µg/m³2026-05-26: 13.9 µg/m³2026-05-27: 16.5 µg/m³2026-05-28: 18.6 µg/m³2026-05-29: 13.9 µg/m³2026-05-30: 14.3 µg/m³2026-05-31: 15.0 µg/m³2026-06-01: 17.7 µg/m³2026-06-02: 19.3 µg/m³2026-06-03: 20.6 µg/m³2026-06-04: 16.8 µg/m³2026-06-05: 15.3 µg/m³2026-06-06: 12.4 µg/m³2026-06-07: 11.4 µg/m³2026-06-08: 13.3 µg/m³2026-06-09: 15.8 µg/m³2026-06-10: 14.2 µg/m³2026-06-11: 12.4 µg/m³2026-06-12: 11.7 µg/m³2026-06-13: no data2026-06-14: 10.0 µg/m³2026-06-15: 10.6 µg/m³2026-06-16: 11.0 µg/m³2026-06-17: 12.2 µg/m³2026-06-18: 14.1 µg/m³2026-06-19: no data2026-06-20: 15.1 µg/m³2026-06-21: 12.9 µg/m³2026-06-22: 12.5 µg/m³2026-06-23: 15.4 µg/m³2026-06-24: 12.1 µg/m³2026-06-25: 12.3 µg/m³2026-06-26: 12.2 µg/m³2026-06-27: 14.2 µg/m³2026-06-28: 12.2 µg/m³2026-06-29: 11.2 µg/m³2026-06-30: 11.5 µg/m³2026-07-01: 13.4 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: 10.4 µg/m³2026-07-31: 10.4 µg/m³2026-08-01: 10.5 µg/m³2026-08-02: 10.2 µg/m³2026-08-03: 9.9 µg/m³2026-08-04: 9.4 µg/m³2026-08-05: 9.7 µg/m³2026-08-06: 9.8 µg/m³2026-08-07: 9.3 µg/m³2026-08-08: 8.6 µg/m³2026-08-09: 9.0 µg/m³2026-08-10: 8.4 µg/m³2026-08-11: 9.3 µg/m³2026-08-12: 9.5 µg/m³2026-08-13: 9.9 µg/m³2026-08-14: 9.9 µg/m³2026-08-15: 10.8 µg/m³2026-08-16: 9.7 µg/m³2026-08-17: 10.6 µg/m³2026-08-18: 11.9 µg/m³2026-08-19: 13.1 µg/m³2026-08-20: 11.4 µg/m³2026-08-21: 8.8 µg/m³2026-08-22: 8.8 µg/m³2026-08-23: 10.0 µg/m³2026-08-24: 11.5 µg/m³2026-08-25: 13.3 µg/m³2026-08-26: 11.4 µg/m³2026-08-27: 8.9 µg/m³2026-08-28: 9.3 µg/m³2026-08-29: 11.2 µg/m³2026-08-30: 11.7 µg/m³2026-08-31: 11.4 µg/m³2026-09-01: 9.6 µg/m³2026-09-02: 9.8 µg/m³2026-09-03: 9.5 µg/m³2026-09-04: 11.5 µg/m³2026-09-05: 10.9 µg/m³2026-09-06: 11.3 µg/m³2026-09-07: 11.1 µg/m³2026-09-08: 10.1 µg/m³2026-09-09: 9.6 µg/m³2026-09-10: 9.5 µg/m³2026-09-11: 9.6 µg/m³2026-09-12: 12.3 µg/m³2026-09-13: 16.1 µg/m³2026-09-14: 18.4 µg/m³2026-09-15: 14.2 µg/m³2026-09-16: 11.4 µg/m³2026-09-17: 9.9 µg/m³2026-09-18: 9.5 µg/m³2026-09-19: 8.1 µg/m³2026-09-20: 9.3 µg/m³2026-09-21: 8.7 µg/m³2026-09-22: 8.9 µg/m³2026-09-23: 12.8 µg/m³2026-09-24: 13.0 µg/m³2026-09-25: 12.2 µg/m³2026-09-26: 9.9 µg/m³2026-09-27: 7.6 µg/m³2026-09-28: 7.3 µg/m³2026-09-29: 8.8 µg/m³2026-09-30: 10.9 µg/m³2026-10-01: 12.4 µg/m³
187 of 286 measured days were over the WHO 24-hour guideline (15 µg/m³). One row per month, one square per local day.
Good0–5
Fair6–15
Moderate16–50
Poor51–90
Very poor91–140
Extremely poor141+

The European Environment Agency's air quality index bands for PM2.5 (2024 revision); it has bands, not numbers, so values stay in µg/m³. 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 00:00 UTC: 13.7 µg/m³2026-10-02 01:00 UTC: 13.6 µg/m³2026-10-02 02:00 UTC: 13.7 µg/m³2026-10-02 03:00 UTC: 14.0 µg/m³2026-10-02 04:00 UTC: 14.0 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#2,835DecJanFebMarAprMayJunJulAugSep#647
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: 32.1 µg/m³JanFeb 2025: 33.3 µg/m³Feb 2026: 29.7 µg/m³FebMar 2025: 65.6 µg/m³Mar 2026: 53.8 µg/m³MarApr 2025: 29.1 µg/m³Apr 2026: 82.3 µg/m³AprMay 2025: 11.8 µg/m³May 2026: 19.0 µg/m³MayJun 2025: 14.6 µg/m³Jun 2026: 13.6 µg/m³JunJulAug 2026: 10.2 µg/m³AugSep 2026: 10.7 µg/m³SepOctNov 2025: 24.2 µg/m³NovDec 2025: 31.5 µg/m³Dec
Faded bars: 2025. A month shows once it has 10 measured days.

Monitors

StationOperatorType
Meteorological Staions, LamphunPermission 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, Lamphun, Thailand, 19 Nov 2025 – 1 Oct 2026, smogrank.com/th/lamphun (accessed 2 Oct 2026).

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Other cities in Thailand

30-day averages, µg/m³. All of Thailand.

Updated 2026-10-02 05:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors in µg/m³.