OpenWeatherを使ってみる

You can generate as many API keys as needed for your subscription. We accumulate the total load from all of them.

- Access current weather data for any location including over 200,000 cities
- We collect and process weather data from different sources such as global and local weather models, satellites, radars and a vast network of weather stations
- JSON, XML, and HTML formats
- Included in both free and paid subscriptions

// 緯度と経度から
https://api.openweathermap.org/data/2.5/weather?lat={lat}&lon={lon}&appid={API key}

// 都市名から？
https://api.openweathermap.org/data/2.5/weather?q={city name}&appid={API key}

City name, state code and country code divided by comma, Please, refer to ISO 3166 for the state codes or country codes.
You can specify the parameter not only in English. In this case, the API response should be returned in the same language as the language of requested location name if the location is in our predefined list of more than 200,000 locations.

{"cod":401, "message": "Invalid API key. Please see https://openweathermap.org/faq#error401 for more info."}

Your API key is not activated yet. Within the next couple of hours, it will be activated and ready to use.

curl https://api.openweathermap.org/data/2.5/weather?zip=169-0072,JP&appid={API Key}&lang=jp

{
    "coord": {
        "lon": 139.7056,
        "lat": 35.7018
    },
    "weather": [
        {
            "id": 803,
            "main": "Clouds",
            "description": "broken clouds",
            "icon": "04d"
        }
    ],
    "base": "stations",
    "main": {
        "temp": 284.52,
        "feels_like": 282.89,
        "temp_min": 282.98,
        "temp_max": 286.3,
        "pressure": 1019,
        "humidity": 45
    },
    "visibility": 10000,
    "wind": {
        "speed": 4.12,
        "deg": 350
    },
    "clouds": {
        "all": 75
    },
    "dt": 1675732660,
    "sys": {
        "type": 2,
        "id": 2001249,
        "country": "JP",
        "sunrise": 1675719421,
        "sunset": 1675757614
    },
    "timezone": 32400,
    "id": 0,
    "name": "Ookubo",
    "cod": 200
}

{
    "coord": {
        "lon": 139.7056,  // 都市の地理的位置、経度
        "lat": 35.7018  // 都市の地理的位置、緯度
    },
    "weather": [  // ココ、配列なので注意！
        {
            "id": 803,  // 気象条件ID
            "main": "Clouds",  // 気象パラメータ群（雨、雪、異常気象など）
            "description": "broken clouds",  // グループ内の気象条件
            "icon": "04d"  // 天気アイコンID
        }
    ],
    "base": "stations",  // 内部パラメータ
    "main": {
        "temp": 284.52,  // 気温(華氏)
        "feels_like": 282.89,  // 体感温度
        "temp_min": 282.98,  // 現時点での最低気温。現在観測されている最低気温（大規模なメガロポリスや都市部内）。
        "temp_max": 286.3,  // 現時点での最高気温
        "pressure": 1019,  // 大気圧（sea_levelまたはgrnd_levelのデータがない場合は海面気圧）、hPa
        "humidity": 45  // 湿度, %.
    },
    "visibility": 10000,  // 視認性、メートル。視界の最大値は10km
    "wind": {
        "speed": 4.12,  // 風速(m/s)
        "deg": 350  // 風向き(度)
    },
    "clouds": {
        "all": 75  // 曇り度, %.
    },
    "dt": 1675732660,  // データ算出時刻、unix、UTC
    "sys": {
        "type": 2,  // 内部パラメータ
        "id": 2001249,  // 内部パラメータ
        "country": "JP",  // 国コード
        "sunrise": 1675719421,  // 日の出時刻、Unix、UTC
        "sunset": 1675757614  // 日没時刻、Unix、UTC
    },
    "timezone": 32400,  // UTCからのシフト（秒
    "id": 0,  // 
    "name": "Ookubo",
    "cod": 200  // 内部パラメータ
}