How to migrate from Dark Sky API to OpenWeather One Call API

Features of OpenWeather One Call API:

1. Free access

One Call API is included in the Free subscription with 1,000 API calls per day. Many other products are available in the same Free subscription, such as Weather Maps, Weather Alerts, etc.

2. Essential weather data with one API call

One Call API provides you with the following weather data for any location:
• Current weather
• Minute forecast data for the next 1 hour
• Hourly forecast data for the next 48 hours
• Daily forecast data for the next 7 days
• Historical weather data for 5 previous days

3. Matching parameters of Dark Sky API and OpenWeather One Call API

To match Dark Sky API parameters to the equivalent OpenWeather One Call API parameters, please use this table.

How to start using One Call API

There are 3 simple steps:

1. Sign up

You will receive a welcome email that contains endpoints and instructions.




2. Get API key

On the account page find the "API key" tab and get the API key. Please use your API key in each API call.




3. Call API

• Getting current, minute, hourly and daily forecast weather data

  https://api.openweathermap.org/data/2.5/onecall?lat={lat}&lon={lon}&appid={YOUR API KEY}



• Getting historical weather data for 5 previous days

  https://api.openweathermap.org/data/2.5/onecall/timemachine?lat={lat}&lon={lon}&dt={time}&appid={YOUR API KEY}




lat, lon geographical coordinates of the location (latitude, longitude)
API key your API key (available on the account page)
dt date from the 5 previous days (unix time, UTC time zone), e.g. dt=1586468027


One Call API documentation (complete description of API calls and parameters in API response, with examples).
One Call API documentation

Matching parameters