Air Quality in Huntington Beach, California — Live
Live readings from PurpleAir sensors across Huntington Beach — with free alerts the moment the air turns.
AQI 32 from 4 PurpleAir sensors · Holding steady · data from PurpleAir
As of , the air quality in Huntington Beach, California is AQI 32 — Good and holding steady — with PM2.5 at 5.8 µg/m³, the median of 4 live PurpleAir sensors reading 26 to 38. Canairy's verdict: Breathe easy.
For scale, that PM2.5 reading is below the World Health Organization's 24-hour guideline of 15 µg/m³. The WHO figure is a daily average and this is a live reading, so read it as a sense of magnitude rather than a formal exceedance — a brief spike and a bad day are not the same thing. More on the WHO guidelines
Pollen today in Huntington Beach: grass pollen is the strongest of the three at a very low level, from Google's pollen forecast. Canairy shows the tree, grass and weed forecast beside the air reading on every plan, including the free one.
Free to download · Live data from PurpleAir & public monitors
Live PurpleAir sensor map for Huntington Beach and Seal Beach, Westminster, Fountain Valley, Costa Mesa. Every dot is a real sensor, color-coded by current air quality.
Sensor by sensor in Huntington Beach
The sensors Canairy reads in Huntington Beach agree right now — all 4 sit in the Good band, a 12-point spread — so the city-wide number is a fair description of the whole area today.
| From city center | AQI | Category |
|---|---|---|
| 1.7 mi SW | 34 | Good |
| 3.1 mi E | 38 | Good |
| 4.5 mi NE | 26 | Good |
| 7.0 mi NW | 31 | Good |
Huntington Beach starts from a better position than most of Southern California. The onshore wind off the Pacific keeps the coast cleaner than the inland valleys, and South Coast AQMD sites its regulatory monitors inland for exactly that reason — a district spokesman explained in 2021 that the highest concentrations of ozone and PM2.5 tend to be inland. What makes the air here worth watching is not the everyday background but the industry sitting in and offshore of the city: an oil field under the neighborhoods, a gas-fired power plant on Pacific Coast Highway, and drilling platforms visible from the sand.
What Canairy does for Huntington Beach
A clear verdict
Not just a number — a plain-English call for Huntington Beach: open the windows, or keep them shut.
Smoke alerts
A push or text the moment the air crosses your threshold — and again when it clears.
A heads-up before it's bad
Trend alerts catch the air turning, so you can close up the house before the smoke settles in.
Every place you care about
Home, work, the kids' school — across Huntington Beach or across the country, on one screen.
What the 2021 oil spill actually did to the air
On October 1, 2021 the San Pedro Bay Pipeline, operated by Beta Offshore, a unit of Amplify Energy, ruptured about 4.5 miles off Huntington Beach; investigators concluded a ship's anchor had likely hooked and dragged it. Estimates of how much crude escaped varied widely, from early figures as high as 126,000 gallons down to later consensus estimates around 24,500. Beaches closed on the evening of October 2 and did not fully reopen until October 11.
The air side of it was mostly odor, and it was over quickly. Huntington Beach and Newport Beach residents called police on the afternoon and evening of October 1 reporting the smell of oil fumes or hot roofing bitumen — two days before the spill was announced publicly on the morning of October 3. South Coast AQMD deployed mobile monitoring along the coast on October 4, having no permanent regulatory monitors in Orange County's coastal cities, and by October 8 air quality in Orange County was back to normal and below California health standards for the pollutants measured. It was a water and wildlife disaster far more than an air one, and it is worth saying that plainly.
The oil field is still under the city, and the platforms are still out there
Huntington Beach sits on top of the Huntington Beach Oil Field, and oil pumps still dot the city even as the reserves have depleted. Offshore there are the federal-lease platforms Edith, Elly, Ellen and Eureka, plus the state-lease platforms Ester, Emmy and Eva. Elly, the processing platform that strips water out of the pumped crude, sits about 8.6 miles out, and the pipeline that failed in 2021 ran roughly 17.5 miles from there toward the Port of Long Beach.
On shore, the AES site on Pacific Coast Highway runs a 644 MW air-cooled combined-cycle turbine commissioned on February 4, 2020 on a 53-acre parcel. The US Energy Information Administration lists AES Alamitos and Huntington Beach — 1,368 MW between them — as the largest natural gas retirement scheduled for 2026, a date that has already slipped from 2020 and then 2023 because the grid still needed the capacity. One caveat worth knowing: neighborhood sensors read fine particles well, but they do not measure the specific gases that come with oil, gas and power operations.
The coast is not out of range of canyon smoke
The ocean breeze is a genuine advantage for most of the year, but it does not hold when a fire is burning in the Orange County foothills and the wind turns offshore. During the Bond Fire in December 2020, South Coast AQMD's smoke advisory recorded very unhealthy AQI in Newport Beach — the city immediately southeast of Huntington Beach — along with Irvine and Lake Forest, and unhealthy AQI across northern Orange County and the Long Beach area. The same advisory declared a no-burn day across the whole South Coast Air Basin. A fire twenty miles inland is still a Huntington Beach problem.
Huntington Beach air quality FAQ
What is the air quality in Huntington Beach right now?
As of September 10, 2026 at 5:09 AM PDT, the air quality in Huntington Beach, California is AQI 32 — Good — with PM2.5 at 5.8 µg/m³, the median of 4 live PurpleAir sensors. Open the windows. Great for outdoor activity.
Why is there smoke in Huntington Beach today?
It has almost certainly drifted in rather than started here. Fires in the Orange County foothills and in Los Angeles County reach the coast when the wind swings offshore. In December 2020 the Bond Fire, burning in Silverado Canyon well inland, put neighboring Newport Beach into the very unhealthy AQI category under a South Coast AQMD advisory, and northern Orange County into the unhealthy category. If nothing is burning in the news, a smoky smell on a still evening is more often something local — a fire pit, or traffic exhaust sitting under an inversion.
Did the 2021 oil spill make the air unsafe to breathe?
The lasting damage was to the water, the beaches and the wildlife rather than the air. Residents in Huntington Beach and Newport Beach reported a strong smell of oil fumes on October 1, 2021, before the spill was publicly announced on October 3. South Coast AQMD sent mobile monitoring to the coast on October 4, and by October 8 air quality in Orange County was back to normal and below California health standards for the pollutants that were measured. Beaches stayed closed until October 11.
Does the power plant on Pacific Coast Highway show up in the air?
Not in a way a neighborhood particle sensor is designed to catch. The current unit there is a 644 MW air-cooled combined-cycle gas turbine commissioned in February 2020, and the older generating capacity at AES Huntington Beach and AES Alamitos is scheduled to retire in 2026 after two earlier target dates slipped. PurpleAir sensors measure fine particles, so they will pick up smoke and haze, but they are not the instrument for nitrogen oxides or any other specific gas.
What the AQI numbers mean
| AQI | Category | What it means for you |
|---|---|---|
| 0–50 | Good | Open the windows. Great for outdoor activity. |
| 51–100 | Moderate | Sensitive groups may want to take it slower outside. |
| 101–150 | Unhealthy for Sensitive Groups | Kids, elderly, and respiratory conditions stay closer to home. |
| 151–200 | Unhealthy | Skip outdoor exercise. Close windows. |
| 201–300 | Very Unhealthy | Limit time outside. N95 if you must go. |
| 301+ | Hazardous | Health emergency. Stay inside, run filtration if you have it. |
Canairy lets you tighten these bands if you’re more sensitive than the EPA default, so an alert can fire before the official category changes. How to read the Air Quality Index
Where these readings come from
The AQI at the top of this page is the median of the 4 curated PurpleAir sensors Canairy tracks in and around Huntington Beach, with outliers set aside so that one sensor brought indoors — or parked beside a barbecue — cannot set the number for a whole city. Every sensor behind it is listed above with its distance and bearing from the city center. There is no black box here.
In the app, a place you save resolves the same way first. When no neighborhood sensor is reporting it falls back to the nearest EPA AirNow monitor, and anything modeled rather than measured is labelled a regional estimate rather than passed off as a sensor reading. How low-cost sensors compare to regulatory monitors
About Canairy
Canairy is free to download. The free plan covers one saved place with live readings, a plain-English verdict, and push alerts when the air crosses a threshold you choose. Paid plans add more places, faster refreshes, and SMS alerts. It is built by two parents in Sonoma County, California, who got tired of guessing whether it was safe to send the kids outside. Why we built it
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Air quality near Huntington Beach
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