Frequently Asked Questions Getting Started Weather APIs Pricing Marketplace Maps News Support For Enterprises Search for... Login Sign up Login Build smarter, plan better with the world’s most flexible weather data platform Build smarter, plan better with the world’s most flexible weather data platform Get API Key Explore API Docs Products Current and Forecast APIs Historical Weather Data Weather Maps Weather Dashboard Widgets Subscription How to start Pricing Subscribe for free FAQ Technologies Our technology Accuracy and quality of weather data Connect your weather station OfficesLondon, UK The Gherkin, 30 St Mary`s Axe,  The City Of London, London EC3A 8BF, United Kingdom Paphos, Cyprus Gladstonos 12-14, Office 1 Hugge Space, Paphos 8046, Cyprus Delaware, US 16192 Coastal Highway, Lewes,  Delaware 19958, United States Company OpenWeather is a London-based weather intelligence company serving enterprises, developers, businesses, and researchers worldwide. Through its developer business, the company provides global weather data and forecasting services via fast, reliable APIs, delivering historical, current, and forecast weather data for any location worldwide. Combining advanced meteorology, AI-enhanced forecasting models, and scalable data infrastructure, OpenWeather helps customers integrate weather intelligence into applications, services, and operational workflows. Supplier of Achilles UVDB community © 2012 - 2026 OpenWeather ® All rights reserved Terms & conditions of sale Website terms & conditions Privacy policy Frequently Asked Questions General overview About the company: what is OpenWeather? OpenWeather (headquartered in London) is a team of IT-intellectuals that create pivotal products for business using climate data. For each point on the globe, OpenWeather provides hyperlocal minutely forecast, historical data, current state, and from short-term to annual forecasted weather data. All data is available via industry standard APIs. OpenWeather Ltd. has more than 9 million users including Fortune 500 companies and thousands of other businesses globally. Get started How to get an API key? To use OpenWeather services, you first need to create an OpenWeather account. Once your account is created and your email address is verified, you will receive your personal API key (APPID), which is required to access our APIs and other OpenWeather services. Getting started is easy: Sign up for an OpenWeather account to get an API key (APPID) on your account page Verify your email address using the confirmation email we sent you. If you do not receive it, you can resend the verification email from your profile settings one hour after registration After verification, check your Inbox again to find our welcome email that contains your API key and important information Congratulations! Now you have a Free OpenWeather account and can start using our services. We also recommend reading our API documentation to learn how to integrate and use our APIs effectively. What products and types of data can I request? For each point on the globe, OpenWeather provides hyperlocal minutely forecast, historical data, current state, and from short-term to annual and forecasted weather data. All data is available via industry standard APIs. One Call API by call: Make just one API call and get all your essential weather data for a specific location with One Call API 4.0. Current weather 1-minute forecast for 1 hour Hourly forecast for 48 hours Daily forecast for 8 days National weather alerts Weather data for 47+ years history archive and 4 days ahead forecast by timestamp Daily aggregated weather data for 47+ years historical archive and 1,5 year forecast ahead Weather overview with a human-readable weather summary for today and tomorrow's forecast, utilizing OpenWeather AI technologies AI Weather Assistant for retrieving weather data and weather-related advice in a human-readable and friendly format For more functionality, please consider our generous professional subscriptions. Professional collections: Current Weather and Forecasts Collection How to get: APIs (you can request data for geographic coordinates, ZIP codes, city name, city ID, number of cities) Bulk Download (download already collected and regularly updated data for a list of global locations; available for premium subscriptions) Historical Weather Collection How to get: On-the-fly bulks for customised lists of coordinates Marketplace of prepared data sets (coordinates, cities, zip codes) - History Bulk (47+ years back), History Forecast Bulk (from 7 Oct 2017) APIs to a timestamp / a period (subscriptions with different limits on calls and depth of archive) Specialised products: Solar Irradiance API Solar Panels Energy Prediction Global Weather Alerts Road Risk API Global Precipitation Maps - Forecast and historical data Weather Maps 2.0 with 1-hour step Detailed information about all our products can be found on the Pricing page. Do I need to activate my API key? Your API key will be activated automatically, up to 2 hours after your successful registration. We invite you to read the API documentation that explains how to use our APIs. How can I use an API key in API calls? To authorise a request from you and process it, we require you to use your unique API key in each API call. In order to do this, add your API key as an appid parameter to the GET request, like in the following example: api.openweathermap.org/data/2.5/weather?id=524901&appid=YOUR_API_KEY Just use your API key instead of “YOUR_API_KEY” with your personal API key, it can be found in your personal account on the “API keys” page. You can also create additional API keys there. Where can I find my API key(s) and generate additional ones? Your API key can be found in your personal account on the “API keys” page. You can always create additional API keys there. How many keys can I create? You can create as many keys as you like. Any API key associated with your account can be used with all subscribed products. API call limits are applied at the account level, not per API key. Usage from all API keys associated with your account is combined and counted toward the same account limits. When choosing a subscription plan, make sure to consider the total expected API usage across all your API keys and subscribed products, as subscription plans have different daily and per-minute API call limits. More information about subscription limits can be found on the Pricing page. How to delete an API key? You can delete unnecessary API keys but please note that your account with us should have at least 1 API key at any time. To find your API key, go to your personal account and click the “API keys” tab When you have more than 1 registered API key, there will be an option to delete an API key. How often is the weather data updated? The frequency of weather data updates depends on your subscription. Please find more information on our “Detailed pricing” page, the “Weather API data update” part. What should I do if I subscribed before creating an account? If you subscribed before creating an OpenWeather account, an account was automatically created using the email address you provided during the subscription process. To access your account, you need to reset your password: Click “Sign in” in the top-right corner of the website Click on "Select Lost your password? Click here to recover" Follow the instructions sent to your email address What should I do if I didn't receive the confirmation email? If you haven't received the confirmation email, try the following: Check your Spam or Junk folder. If you find the email there, mark it as Not Spam to ensure future emails from OpenWeather are delivered to your Inbox Wait at least 1 hour after registration. You can then resend the verification email from your account settings: https://home.openweathermap.org/home If you still don't receive the email, you can send another verification email 3 hours after your previous resend request If you still haven't received the verification email after following these steps, please contact us at [email protected] for assistance. About One Call API 4.0 product What is One Call API 4.0? What does this product include? One Call API 4.0 is a unified weather intelligence API designed to give developers, digital products, and enterprise teams access to current weather, short-term forecasts, long-range daily outlooks, historical weather records, and official weather alerts through a single integration.  One Call API 4.0 simplifies weather data access by consolidating multiple temporal layers of weather information into one coherent API product. With a single API key and a standard request model based on geographic coordinates, teams can access: Current weather conditions Minute-by-minute forecast data for the next 60 minutes 15-minute forecast data for the next 48 hours Hourly weather timelines spanning 47 years of history and 48 hours of forecast Daily weather timelines spanning 47 years of history and up to 1.5 years ahead Detailed weather alert information from national agencies This combination helps businesses reduce integration complexity, shorten development time, and create richer weather-aware experiences across consumer, commercial, and industrial use cases. One Call API 4.0 is included to the "Pay as you call" subscription type. Please note, that you do not need to subscribe to any other OpenWeather subscription plans to get access to the One Call API 4.0. If you are ready to subscribe to the One Call API 4.0, please refer to the Pricing page. How much does subscription on the One Call API 4.0 cost? Subscription on the One Call API 4.0 allows you to pay only for the number of API calls made to this product. 1,000 API calls per day are included for free. Our system sums up the number of calls that were in excess of the free limit (1,000 calls per day). You will be automatically charged at the end of your subscription months. If you unsubscribe before the end of your subscription month, then you will be charged at the time of unsubscribing. Please refer to the Pricing page to find information about actual price for calls to One Call API 4.0. How to start use the One Call 4.0? First, please create your account by signing up with your email, if haven't OpenWeather account yet, and find API keys in the ‘API keys’ tab. Second, on the Pricing page, click 'Subscribe' button in the "One Call API 4.0" section. Fill out a short billing form and complete your subscription. Please pay attention, that you do not need to sign up any other subscriptions to get access to the One Call API 4.0. Congratulations! Now you can start using the One Call API 4.0. Please note that the limit of 2,000 API calls per day is set by default. You can always change this limit at the "Billing plan" tab in your Personal account. Before you subscribe to our service, please read Terms and conditions of sale, Privacy policy, and Websites terms and conditions of use. Third, make an API call according One Call API 4.0 documentation. Professional API collections What is Professional API collections? The Professional API collections include several products in each subscription plan. Unlike the "Pay as you Call" subscription type, professional subscriptions have a fix price per month and API call limits (number of API calls per minute and number of API calls per month). The Professional API collections contain access to weather historical data, current and various forecasts. These collections also allow users to request weather maps and get weather data not only via API, but with other instruments. I want to start using of the professional subscriptions. Where do I begin? It is easy and takes a couple of steps. First, please create your account by signing up with your email and find API keys in the ‘API keys’ tab. On the Pricing page, choose a proper…