What is the air quality trend in Trincomalee?

Over the past 8 days, Trincomalee had an average AQI of 58 based on station measurements. The worst day was 2026-07-17 with AQI 67.

How is Trincomalee air quality measured?

Air quality in Trincomalee 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 Trincomalee, Sri Lanka

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

Historical PM2.5 and AQI trend from monitoring stations near Trincomalee, Sri Lanka.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

161h

PM2.5 Station

161h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-22	54	52–57	13.7 µg/m³	9.5	4h	1
2026-07-21	65	53–98	18.6 µg/m³	13.0	22h	1
2026-07-20	54	50–58	13.5 µg/m³	9.8	24h	1
2026-07-19	57	53–63	15.1 µg/m³	10.9	24h	1
2026-07-18	56	52–62	14.4 µg/m³	10.2	23h	1
2026-07-17	67	51–107	19.6 µg/m³	13.9	24h	1
2026-07-16	61	49–89	17.1 µg/m³	12.0	24h	1
2026-07-15	56	53–64	14.7 µg/m³	10.5	16h	1

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