South Korea · Asia/Seoul
Jeju air quality
AQI estimate unavailable
CAMS model-based US AQI estimate
Complete eligible model windows are not available within the stale policy; pollutant concentrations are shown below.
Model values for Oct 31 15:00 KST · CAMS model estimate, may differ from monitoring stations and street-level conditions
Data may be delayed · Page generated 2026-10-31 15:22 KST
AirNow by Skymory is an independent service; it is not affiliated with or endorsed by U.S. EPA or the official AirNow service.
Pollutants now (modeled)
- PM2.5Fine particles35.6 µg/m³
- PM10Coarse particles68.6 µg/m³
- O3Ozone84.5 µg/m³
- NO2Nitrogen dioxide5.2 µg/m³
- SO2Sulphur dioxide3.2 µg/m³
- COCarbon monoxide300.0 µg/m³
Weather in Jeju
See the temperature, rain and wind forecast for Jeju.
Jeju weather forecast on SkymoryNext 24 hours: PM2.5
Pollutant forecast
Hourly model samples in local time; no interpolation.
| Local time | PM2.5 µg/m³ | PM10 µg/m³ | O3 µg/m³ | NO2 µg/m³ | SO2 µg/m³ | CO µg/m³ |
|---|---|---|---|---|---|---|
| 29.8 | 52.1 | 88.0 | 5.1 | 2.9 | 279.0 | |
| 24.2 | 41.4 | 89.6 | 5.9 | 2.6 | 252.5 | |
| 19.9 | 36.3 | 89.0 | 6.6 | 2.4 | 227.1 | |
| 17.2 | 34.5 | 88.4 | 6.3 | 2.4 | 206.4 | |
| 15.8 | 32.8 | 87.3 | 6.3 | 2.4 | 193.3 | |
| 14.6 | 29.7 | 86.0 | 6.4 | 2.3 | 184.5 | |
| 13.3 | 25.7 | 85.5 | 6.4 | 2.3 | 176.2 | |
| 11.8 | 21.4 | 85.9 | 6.3 | 2.2 | 168.2 | |
| 10.5 | 18.4 | 85.4 | 6.6 | 2.2 | 163.4 | |
| 9.3 | 15.5 | 85.2 | 6.7 | 2.2 | 158.7 | |
| 8.1 | 12.9 | 85.1 | 6.8 | 2.2 | 154.6 | |
| 7.1 | 10.9 | 85.2 | 6.9 | 2.2 | 151.1 | |
| 6.4 | 9.7 | 84.1 | 7.5 | 2.4 | 150.1 | |
| 5.9 | 8.6 | 82.6 | 8.2 | 2.5 | 150.1 | |
| 4.9 | 6.8 | 81.9 | 8.8 | 2.6 | 149.9 | |
| 3.8 | 5.0 | 82.6 | 11.4 | 2.7 | 151.3 | |
| 3.3 | 3.9 | 83.7 | 12.6 | 2.7 | 154.1 | |
| 3.2 | 3.8 | 85.1 | 12.0 | 2.8 | 155.1 | |
| 3.9 | 5.1 | 86.5 | 10.2 | 2.7 | 152.3 | |
| 6.4 | 9.3 | 87.6 | 8.2 | 2.5 | 151.8 | |
| 11.1 | 16.8 | 91.3 | 6.0 | 2.2 | 156.0 | |
| 16.8 | 27.4 | 97.7 | 4.1 | 1.9 | 169.6 | |
| 20.7 | 35.7 | 104.5 | 2.9 | 1.6 | 184.8 | |
| 24.7 | 42.6 | 109.5 | 2.6 | 1.5 | 199.3 |
Data details: about this air quality estimate
Values are modeled by the Copernicus Atmosphere Monitoring Service (CAMS) global forecast, extracted and converted by Skymory for this city. They are model estimates on a coarse grid, not measurements from monitoring stations, and they do not resolve street-level exposure.
- Model initialization: 2026-10-30T12:00:00+00:00. Values valid: Oct 31 15:00 KST. Retrieved: 2026-10-31T03:34:22.424119+00:00.
- Page generated from a snapshot with data state STALE_USABLE; model age 18.4 hours at generation.
- Nearest valid 0.4° model grid cell, about 15 km from the city point.
- Gases are converted with matching model-level 137 temperature, humidity, surface pressure (lnsp) and hybrid coefficients; particulate matter is read directly from the surface fields.
- AQI estimate completeness: UNAVAILABLE (COMPLETE means all six pollutants have a complete model window).
The AQI estimate applies EPA breakpoints (May 2026) to explicit trailing model windows (PM 24 h, CO 8 h, NO2 1 h, SO2 and O3 per EPA rules). It is not a station observation, official daily maximum or NowCast, and the official AQI field remains unavailable.
Surface compatibility by pollutant
| Pollutant | Surface compatibility |
|---|---|
| PM2.5 | DIRECT_SURFACE |
| PM10 | DIRECT_SURFACE |
| O3 | DERIVABLE_SURFACE |
| NO2 | DERIVABLE_SURFACE |
| SO2 | DERIVABLE_SURFACE |
| CO | DERIVABLE_SURFACE |
Source and license
Contains modified Copernicus Atmosphere Monitoring Service information 2026; city extraction and concentration conversion. CAMS global atmospheric composition forecasts (ECMWF/CAMS). CC BY 4.0.
Provider times stay separate from page generation: collecting data or regenerating this page never resets the source time. Data sources and methodology
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