What is the air quality trend in Si Racha?

Over the past 15 days, Si Racha had an average AQI of 55 based on station measurements. The worst day was 2026-07-16 with AQI 74.

How is Si Racha air quality measured?

Air quality in Si Racha is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Si Racha, Thailand

Name: Si Racha Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Si Racha, Thailand.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

207h

PM2.5 Station

207h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	48	48–48	11.6 µg/m³	1h	2
2026-07-21	54	33–72	14.4 µg/m³	9h	1
2026-07-20	63	63–63	17.9 µg/m³	1h	2
2026-07-19	52	44–62	13.5 µg/m³	5h	1
2026-07-18	60	51–65	16.4 µg/m³	5h	2
2026-07-17	64	42–139	18.4 µg/m³	12h	2
2026-07-16	74	40–135	23.0 µg/m³	14h	2
2026-07-15	51	33–122	13.3 µg/m³	21h	2
2026-07-14	48	23–62	11.9 µg/m³	24h	2
2026-07-13	48	37–59	11.7 µg/m³	23h	2
2026-07-12	51	25–59	12.8 µg/m³	23h	2
2026-07-11	52	38–67	13.4 µg/m³	24h	2
2026-07-10	58	39–65	15.5 µg/m³	21h	2
2026-07-09	56	51–63	14.6 µg/m³	13h	2
2026-07-08	55	40–64	14.5 µg/m³	11h	2

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