What is the air quality trend in Si Racha?

Over the past 8 days, Si Racha had an average AQI of 57 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
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

67h

PM2.5 Station

67h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	60	51–72	16.2 µg/m³	6h	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	38	36–39	9.1 µg/m³	3h	2

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