Air Quality Daily Forecast

Platform: API iOS Android

Air Quality Daily Forecast API for Chinese cities, including AQI, air quality levels, primary pollutants.

Request URL

https://api.qweather.com/v7/air/5d?[params]

For Free subscription, change the API Host to devapi.qweather.com. See data available for Free subscription.

Request Parameters

All parameters are separated by &. If no optional parameters are set, the default value will be used.

key(required)API authentication key, please refer to How To Get Your Key. Support Signature Authentication. Example: key=12334567890ABC
location(required)The location to be queried, support LocationID or comma-separated longitude and latitude (decimal, up to 2 decimal places), LocationID can be obtained by GeoAPI. Example: location=101010100 or location=116.41,39.92
langMulti-language setting, see language code for available value. If data does not match the language you set, it will return results in English or its native language.

Request Example

Air quality daily forecast for Beijing

curl -L -X GET --compressed 'https://api.qweather.com/v7/air/5d?location=101010100&key=YOUR_KEY'

Response

The response is in JSON format and is Gzip compressed, all fields are Strings.

{
  "code": "200",
  "updateTime": "2021-02-16T10:42+08:00",
  "fxLink": "http://hfx.link/2ax4",
  "daily": [
    {
      "fxDate": "2021-02-16",
      "aqi": "46",
      "level": "1",
      "category": "优",
      "primary": "NA"
    },
    {
      "fxDate": "2021-02-17",
      "aqi": "47",
      "level": "1",
      "category": "优",
      "primary": "NA"
    },
    {
      "fxDate": "2021-02-18",
      "aqi": "67",
      "level": "2",
      "category": "良",
      "primary": "PM2.5"
    },
    {
      "fxDate": "2021-02-19",
      "aqi": "101",
      "level": "3",
      "category": "轻度污染",
      "primary": "PM2.5"
    },
    {
      "fxDate": "2021-02-20",
      "aqi": "120",
      "level": "3",
      "category": "轻度污染",
      "primary": "PM2.5"
    }
  ],
  "refer": {
    "sources": [
      "cnemc"
    ],
    "license": [
      "commercial license"
    ]
  }
}

code API status code, please refer to Status Code
updateTime API last update time
fxLink Responsive web page of this data, for embedded in website or APP
daily.fxDate Forecast date
daily.aqi Air Quality Index
daily.level AQI level
daily.category AQI category
daily.primary The main pollutant. If level=1, return NA
refer.sources Data source and other statements, may be null
refer.license Data license, may be null

Air Quality Index Level

See Air Quality Info.