Pricing overview

OpenWeatherMap employs a tiered pricing structure that includes a free tier and several paid subscription plans. The primary differentiators between tiers are the maximum number of API calls allowed per month, the frequency of data updates, and access to advanced features and historical data. The service offers various APIs, including Current Weather Data, Forecast, One Call, Historical Data, and Geocoding APIs, with specific usage limits applied per plan.

The free tier is designed to support development, testing, and small-scale applications, providing access to essential weather data with generous limits. As usage scales or more specialized data and higher update frequencies are required, users can upgrade to paid plans. These plans are subscription-based, billed monthly, and offer increased call volumes, faster data updates, and additional features such as 16-day daily forecasts, minute-by-minute forecasts, and access to historical weather data archives. OpenWeatherMap clearly outlines its pricing details on its official website, detailing the inclusions and limitations of each plan.

For enterprise-level requirements or custom solutions beyond the standard plans, OpenWeatherMap also provides options for tailored packages. These typically involve direct consultation with their sales team to define specific needs regarding API call volumes, data types, service level agreements (SLAs), and dedicated support. This flexibility allows a range of users, from individual developers to large organizations, to integrate weather data effectively into their applications and services.

Plans and tiers

OpenWeatherMap's pricing model is structured around several tiers, each designed to meet different usage requirements. The plans are primarily differentiated by API call limits, data update frequency, and access to specific API endpoints and features. Key plans include the Free, Startup, Developer, Professional, and Enterprise tiers.

Plan comparison table

Plan Name Monthly Price Key Limits & Features Best For
Free $0
  • 1,000,000 calls/month (Current Weather, 5-day Forecast)
  • 60 calls/minute rate limit
  • 5-day / 3-hour forecast
  • Current weather data
  • Geocoding API
 Small projects, prototypes, educational use, testing, low-traffic personal websites
Startup $40
  • 2,000,000 calls/month
  • 1,000 calls/minute rate limit
  • All Free plan features
  • 16-day / daily forecast
  • Hourly forecast for 4 days
  • Weather maps (basic)
  • Data update: every 10 minutes
 Small businesses, growing applications, web and mobile apps requiring more frequent updates
Developer $100
  • 10,000,000 calls/month
  • 1,000 calls/minute rate limit
  • All Startup plan features
  • Minute-by-minute forecast for 1 hour
  • Historical data (1 year back)
  • Air pollution API
  • Data update: every 5 minutes
 Medium-sized applications, analytics platforms, IoT projects needing historical data and more granular forecasts
Professional $500
  • 50,000,000 calls/month
  • 2,000 calls/minute rate limit
  • All Developer plan features
  • Historical data (5 years back)
  • Road risk API
  • Data update: every 2 minutes
 Large-scale applications, enterprise solutions, platforms requiring high reliability and extensive historical data
Enterprise Custom
  • Custom call volumes & rate limits
  • All Professional plan features
  • Dedicated support
  • SLAs
  • On-premise solutions
 Very large organizations, mission-critical applications, specific data requirements

Each paid plan offers an upgrade path, allowing users to scale their usage and access more advanced features as their application's needs evolve. Detailed information on each plan's specific inclusions and limitations is available on the OpenWeatherMap pricing page.

Free tier and limits

OpenWeatherMap provides a robust free tier designed to facilitate development, testing, and small-scale deployments without initial cost. This tier includes access to fundamental weather data services, making it suitable for students, hobbyists, and developers prototyping new applications.

Key limits and features of the free tier:

  • API Calls: Up to 1,000,000 API calls per month. This generous limit applies to core services like Current Weather Data and the 5-day / 3-hour Forecast API.
  • Rate Limit: A maximum of 60 API calls per minute. This ensures fair usage across all free tier users and helps maintain service stability.
  • Data Access: Users can retrieve current weather conditions, a 5-day / 3-hour forecast, and utilize the Geocoding API to convert city names or ZIP codes into geographical coordinates.
  • Data Update Frequency: Data is updated approximately every 10-15 minutes, which is sufficient for many non-real-time applications.

The free tier is often sufficient for applications that display basic weather information, such as personal weather widgets, educational projects, or internal tools with moderate usage. Developers can use this tier to build and test their integrations thoroughly before committing to a paid plan. However, for applications requiring more frequent data updates, longer forecast periods, historical data, or higher call volumes, upgrading to a paid plan becomes necessary.

Real-world cost examples

Understanding OpenWeatherMap's pricing requires looking at how different usage patterns translate into monthly costs. Here are a few real-world scenarios:

Scenario 1: Personal Weather Widget (Free Tier)

  • Application: A personal website displaying current weather and a 5-day forecast for a single location. The widget updates every 30 minutes.
  • API Calls: 2 calls (current + forecast) * 2 updates/hour * 24 hours/day * 30 days/month = 2,880 calls/month.
  • Cost: $0. This usage falls well within the free tier's 1,000,000 calls/month and 60 calls/minute limits.
  • Consideration: Even if the widget served 100 users, each triggering an update, the total calls would be 288,000 calls/month, still comfortably within the free tier.

Scenario 2: Small Business Web Application (Startup Plan)

  • Application: A travel agency website that displays 16-day daily forecasts for various destinations searched by customers. The site serves approximately 5,000 unique visitors per day, with each visitor making an average of 5 API calls (e.g., searching multiple destinations or viewing detailed forecasts).
  • API Calls: 5,000 visitors/day * 5 calls/visitor * 30 days/month = 750,000 calls/month.
  • Required Features: 16-day daily forecast (not available in free tier).
  • Cost: $40/month (Startup plan). This plan provides 2,000,000 calls/month and includes the 16-day forecast feature, accommodating the application's needs.
  • Consideration: The Startup plan also offers faster data updates (every 10 minutes) compared to the free tier, which can improve user experience.

Scenario 3: IoT Device Network (Developer Plan)

  • Application: A network of 1,000 IoT agricultural sensors that report their location and request current weather data every hour for localized irrigation decisions. The system also stores 6 months of historical weather data for analytics.
  • API Calls: 1,000 devices * 1 call/hour * 24 hours/day * 30 days/month = 720,000 calls/month for current weather. Additionally, periodic calls for historical data or minute-by-minute forecasts might be made.
  • Required Features: Historical data access (1 year back) and potentially minute-by-minute forecasts.
  • Cost: $100/month (Developer plan). This plan offers 10,000,000 calls/month, ample for the sensor network, and includes historical data access, as well as an air pollution API.
  • Consideration: The Developer plan's 5-minute data update frequency is beneficial for real-time agricultural decision-making.

Scenario 4: Large-Scale Logistics Platform (Professional Plan)

  • Application: A logistics company's platform that provides real-time weather conditions and road risk assessments for thousands of delivery routes across multiple regions, updating every few minutes. The platform processes 10,000 requests per hour on average for various weather data types.
  • API Calls: 10,000 calls/hour * 24 hours/day * 30 days/month = 7,200,000 calls/month. This could easily fluctuate higher during peak times.
  • Required Features: Road risk API, extensive historical data (5 years back), high reliability, and fast data updates.
  • Cost: $500/month (Professional plan). This plan provides 50,000,000 calls/month, includes the Road Risk API, and offers data updates every 2 minutes, critical for dynamic logistics.
  • Consideration: The Professional plan's higher rate limits and specialized APIs are essential for complex operational platforms.

How the pricing compares

OpenWeatherMap's pricing model, particularly its generous free tier and tiered subscription plans, positions it competitively against other weather data providers. Many alternatives offer similar services but may differ in their free tier limitations, per-call pricing, or feature sets.

For instance, AccuWeather Developer API also provides a free tier, but its limits are typically lower (e.g., 50 calls/day for some endpoints) before requiring a paid subscription. AccuWeather's paid plans can vary significantly based on API usage and specific data products, often leading to higher costs for comparable call volumes, particularly for enterprise-level usage.

Tomorrow.io's Weather API, while offering highly granular and hyperlocal forecasts, tends to focus on more advanced use cases and its pricing structure can reflect this, often starting at higher price points for similar call volumes compared to OpenWeatherMap's entry-level paid plans. Tomorrow.io emphasizes its proprietary forecasting models and high-resolution data, which may justify a premium for specific applications requiring that level of detail.

Weatherstack, another popular alternative, offers a free tier with 25,000 calls/month and paid plans starting around $10/month. While seemingly cheaper at the lowest paid tier, Weatherstack's free tier is significantly more restrictive than OpenWeatherMap's 1,000,000 calls/month. For applications requiring a substantial number of calls without immediate cost, OpenWeatherMap's free tier often provides a more extended runway.

Overall, OpenWeatherMap often stands out for its balance of affordability and feature set, especially for developers and small to medium-sized businesses. Its free tier provides substantial utility, and its paid plans offer a clear progression for scaling applications. When evaluating alternatives, developers should consider not just the base price but also the specific API endpoints needed, the required data update frequency, call volume limits, and the availability of specialized features like historical data or road risk APIs, as these factors significantly influence overall cost and suitability for a project.

For further comparison of API pricing models across various services, resources like the Google Cloud comparison documentation can offer insights into how different cloud providers structure their API costs, which can sometimes influence third-party API providers or offer alternative data sources.