SmogRank / Thailand / Phatthalung / Phatthalung

Phatthalung, month by month

Phatthalung has a measured daily mean on 546 days since 8 July 2023. Its worst month was March 2025, at 66 US AQI (17.0 µg/m³), 771st of 2,862 cities on that month's world ranking. Its cleanest was June 2026, at 42 US AQI (7.6 µg/m³).

Every month since 2023

202656 so far255 days measured749th of 2,793 in the world
Jan61#786Feb57#990Mar59#992Apr64#529May43#1,374Jun42#1,221Jul3 daysAug55#699Sep51#744Oct64#179
2025too few days for a mean (a year needs 256)223 days measured
Jan5 daysFeb66#766Mar66#771Apr47#1,655May43#1,433Jun55#891JulnoneAug6 daysSep46#1,154Oct10 daysNov12 daysDec53#1,287
2024too few days for a mean (a year needs 257)57 days measured
Jan12 daysFeb13 daysMar7 daysAprnoneMaynoneJunnoneJulnoneAug14 daysSep5 daysOct2 daysNov3 daysDec1 day
2023too few days for a mean (a year needs 256)11 days measured
JanFebMarAprMayJunJul5 daysAug3 daysSep3 daysOctnoneNovnoneDecnone
Each square is a month's mean PM2.5 in US AQI from Phatthalung's measured days, with its place on that month's world ranking under it. A month has a mean once 70% of its days are measured, the rule the monthly rankings use; under that, the square gives the days measured. Each square opens that month's ranking with Phatthalung marked; each year, the year's. A dashed square is the running month, so far.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Months without a mean, and why

24 months
MonthWhy
Jul 20263 of 31 days measured; a month needs 22. The others: 28 with under 18 hours of readings or readings that failed our checks.
Nov 202512 of 30 days measured; a month needs 21. The others: 18 with under 18 hours of readings or readings that failed our checks.
Oct 202510 of 31 days measured; a month needs 22. The others: 21 with under 18 hours of readings or readings that failed our checks.
Aug 20256 of 31 days measured; a month needs 22. The others: 25 with under 18 hours of readings or readings that failed our checks.
Jul 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jan 20255 of 31 days measured; a month needs 22. The others: 26 with under 18 hours of readings or readings that failed our checks.
Dec 20241 of 31 days measured; a month needs 22. The others: 30 with under 18 hours of readings or readings that failed our checks.
Nov 20243 of 30 days measured; a month needs 21. The others: 27 with under 18 hours of readings or readings that failed our checks.
Oct 20242 of 31 days measured; a month needs 22. The others: 29 with under 18 hours of readings or readings that failed our checks.
Sep 20245 of 30 days measured; a month needs 21. The others: 25 with under 18 hours of readings or readings that failed our checks.
Aug 202414 of 31 days measured; a month needs 22. The others: 17 with under 18 hours of readings or readings that failed our checks.
Jul 2024No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jun 2024No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
May 2024No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Apr 2024No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Mar 20247 of 31 days measured; a month needs 22. The others: 24 with under 18 hours of readings or readings that failed our checks.
Feb 202413 of 29 days measured; a month needs 21. The others: 1 missing from OpenAQ's archive, 15 with under 18 hours of readings or readings that failed our checks.
Jan 202412 of 31 days measured; a month needs 22. The others: 19 with under 18 hours of readings or readings that failed our checks.
Dec 2023No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Nov 2023No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Oct 2023No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Sep 20233 of 30 days measured; a month needs 21. The others: 27 with under 18 hours of readings or readings that failed our checks.
Aug 20233 of 31 days measured; a month needs 22. The others: 28 with under 18 hours of readings or readings that failed our checks.
Jul 20235 of 31 days measured; a month needs 22. The others: 1 missing from OpenAQ's archive, 18 with under 18 hours of readings or readings that failed our checks.

A day counts once 18 hours of it are measured; a month needs 70% of its days.

Phatthalung's worst months

MonthUS AQIDays measuredWorld rankEpisode
March 2025 6617.0 µg/m³27 of 31771stof 2,862Thailand and Laos, March 2025
February 2025 6616.9 µg/m³28 of 28766thof 2,633Thailand, 12 to 13 February 2025
April 2026 6415.9 µg/m³30 of 30529thof 2,941–
January 2026 6114.4 µg/m³31 of 31786thof 2,617–
March 2026 5913.6 µg/m³31 of 31992ndof 2,971–
February 2026 5712.3 µg/m³28 of 28990thof 2,866–

Monthly means over the days measured; finished months only. World rank: its place on that month's world ranking of every city with enough days. Each month opens that ranking.

Phatthalung's worst days

DayUS AQIEpisode
26 Mar 2025 9532.5 µg/m³Thailand and Laos, March 2025
9 Oct 2026 9231.2 µg/m³–
24 Aug 2026 8829.0 µg/m³–
12 Feb 2025 8728.6 µg/m³Thailand, 12 to 13 February 2025
13 Feb 2025 8728.5 µg/m³Thailand, 12 to 13 February 2025
1 Feb 2025 8728.4 µg/m³–
27 Mar 2025 8627.9 µg/m³Thailand and Laos, March 2025
22 Mar 2025 8426.7 µg/m³Thailand and Laos, March 2025
2 Feb 2025 8326.4 µg/m³–
7 Mar 2024 8226.0 µg/m³–

Daily means, the highest since 8 Jul 2023; the WHO's daily guideline is 15 µg/m³. Each date opens that day's world ranking, and each episode the bad-air spell it was part of.

Use this history

SmogRank, PM2.5 monthly and daily means, Phatthalung, Thailand, 8 Jul 2023 – 12 Oct 2026. Monitor data from Air4Thai via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/th/phatthalung/history (accessed 12 Oct 2026).

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You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.

Phatthalung now: the last 24 hours, its ranks today and the last 12 months day by day.

Updated 2026-10-12 21:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some low-cost readings: Sensor.Community, ODbL (data and licence). Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver), no reuse terms published (why we use them).