What is the air quality trend in Si Racha?

Over the past 21 days, Si Racha had an average AQI of 49 based on station measurements. The worst day was 2026-09-03 with AQI 68.

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

477h

PM2.5 Station

477h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	65	52–72	18.7 µg/m³	14h	2
2026-09-04	62	34–145	17.5 µg/m³	23h	2
2026-09-03	68	29–171	21.9 µg/m³	24h	2
2026-09-02	49	12–79	13.2 µg/m³	24h	2
2026-09-01	52	19–84	13.9 µg/m³	24h	2
2026-08-31	66	33–112	20.0 µg/m³	23h	2
2026-08-30	50	23–76	12.8 µg/m³	24h	2
2026-08-29	40	18–79	10.0 µg/m³	24h	2
2026-08-28	35	17–71	8.8 µg/m³	24h	2
2026-08-27	39	27–52	9.4 µg/m³	24h	2
2026-08-26	32	14–53	7.6 µg/m³	24h	2
2026-08-25	47	28–77	12.0 µg/m³	24h	2
2026-08-24	38	19–64	9.3 µg/m³	24h	2
2026-08-23	45	8–133	12.8 µg/m³	24h	2
2026-08-22	34	13–64	8.3 µg/m³	24h	2
2026-08-21	52	23–88	13.9 µg/m³	24h	2
2026-08-20	42	20–70	10.2 µg/m³	24h	2
2026-08-19	52	12–130	14.9 µg/m³	24h	2
2026-08-18	60	33–91	17.2 µg/m³	24h	2
2026-08-17	55	24–151	16.0 µg/m³	23h	2
2026-08-16	52	36–66	13.3 µg/m³	10h	2

Back to Si Racha Air Quality