Worst air pollution Chigasaki, today and tomorrow
Today (16 July): Air quality in Chigasaki is poor. AQI and O3 are poor; PM1 is fair; PM2.5, PM10, NO2, SO2, CO, and HCHO are good. Pollution peaks around 5:00 PM (O3: 66.8/100).
Tomorrow (17 July 2026): Air quality in Chigasaki is fair. AQI improves to fair; PM2.5 increases to fair; O3 decreases to fair; all other pollutants stay as today. Pollution peaks around 10:00 AM (O3: 35.6/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Chigasaki's air quality benefits from its exceptional Sagami Bay and Pacific Ocean coastal position in Kanagawa Prefecture, with consistent Pacific and Sagami Bay maritime breezes providing reliable ventilation. Vehicle traffic on surrounding roads and the manufacturing, surfing tourism, and residential corridor contribute local sources, while the outstanding Pacific coastal exposure generally maintains Chigasaki among Kanagawa's more moderately ventilated coastal cities and summer photochemical ozone from the broader Kanto corridor is the primary warm-season concern.
Today - 16 July | Pollution peaks at 17:00
AQI:
Poor
66.8/100
PM2.5 (fine particles):
Good
18.7/100
PM10 (coarse particles):
Good
5.6/100
NO2 (nitrogen dioxide):
Good
9.0/100
O3 (ozone):
Poor
66.8/100
SO2 (sulfur dioxide):
Good
5.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.4/100
PM1 (ultrafine particles):
Fair
21.9/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 10:00
AQI:
Fair
35.6/100
PM2.5 (fine particles):
Fair
22.5/100
PM10 (coarse particles):
Good
6.5/100
NO2 (nitrogen dioxide):
Good
11.2/100
O3 (ozone):
Fair
35.6/100
SO2 (sulfur dioxide):
Good
9.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
13.0/100
PM1 (ultrafine particles):
Fair
27.0/100
Frequently Asked Questions
Is air quality bad in Chigasaki right now?
On 16 July 2026, overall air quality in Chigasaki is poor. AQI is the main air quality indicator at 66.8/100. Pollution peaks around 5:00 PM (O3: 66.8/100).
Will air quality be worse tomorrow in Chigasaki?
On 17 July 2026, air quality conditions in Chigasaki will be better than today, with AQI forecast at fair at 35.6/100. Pollution peaks around 10:00 AM (O3: 35.6/100).
When is air pollution at its worst in Chigasaki?
In Chigasaki, traffic emissions, steel, cement, and chemical production, together with manufacturing activity are the main local sources, with conditions worsening when warm, sunny weather takes hold. Photochemical reactions in the heat push ozone levels higher. Sea breezes typically keep conditions in check, except during still weather.
Are air quality levels in Chigasaki based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app