What is the air quality trend in Hilton Head?

Over the past 15 days, Hilton Head had an average AQI of 27 based on station measurements. The worst day was 2026-05-16 with AQI 41.

How is Hilton Head air quality measured?

Air quality in Hilton Head 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 Hilton Head, United States

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

Historical PM2.5 and AQI trend from monitoring stations near Hilton Head, United States.

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

157h

PM2.5 Station

157h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	20	12–30	4.8 µg/m³	6h	1
2026-05-29	26	5–44	6.2 µg/m³	10h	1
2026-05-28	25	5–42	6.1 µg/m³	10h	1
2026-05-27	24	6–52	5.7 µg/m³	7h	1
2026-05-26	20	5–40	4.7 µg/m³	10h	1
2026-05-25	24	11–56	6.0 µg/m³	8h	1
2026-05-24	27	13–59	6.6 µg/m³	11h	1
2026-05-23	22	9–45	5.3 µg/m³	14h	1
2026-05-22	27	9–58	6.7 µg/m³	11h	1
2026-05-21	22	5–34	5.4 µg/m³	12h	1
2026-05-20	31	21–51	7.3 µg/m³	10h	1
2026-05-19	35	20–57	8.5 µg/m³	13h	1
2026-05-18	26	9–38	6.2 µg/m³	14h	1
2026-05-17	40	6–61	10.0 µg/m³	18h	1
2026-05-16	41	39–42	9.8 µg/m³	3h	1

Back to Hilton Head Air Quality