Pricing overview
OpenWeatherMap employs a tiered subscription pricing model that accommodates a range of usage scenarios, from individual hobbyists to large-scale commercial deployments. The core of their pricing structure revolves around the volume of API calls, the refresh rate of weather data, and access to specialized data products and features. All plans include access to fundamental APIs such as Current Weather Data, the One Call API, and the Geocoding API, with higher tiers unlocking features like Historical Data, Weather Maps, and Weather Alerts with more frequent updates and greater precision allowances. The Free plan provides a substantial allowance for initial development and low-volume applications, while paid plans, starting at $40 per month, cater to projects requiring higher call volumes and advanced capabilities, as detailed on the official OpenWeatherMap pricing page.
The pricing model is designed to be transparent, with clear distinctions between plan limits and included features. Users can upgrade or downgrade plans based on their evolving usage needs, ensuring scalability. The primary factors influencing cost are the monthly API call allowance, the frequency of data updates (e.g., every 10 minutes vs. every minute), and access to premium features like certain historical data ranges or specific mapping layers. This structure contrasts with purely pay-as-you-go models by offering predictable monthly costs for defined usage thresholds.
Plans and tiers
OpenWeatherMap offers several plans, each incrementally increasing the API call limits, data refresh rates, and access to advanced features. The primary tiers include the Free, Starter, Developer, Professional, and Enterprise plans. Each tier is designed to support different scales of application and development needs.
| Plan | Monthly Price | Key Limits & Features | Best For |
|---|---|---|---|
| Free | $0 | 1,000,000 calls/month, 10-minute data updates, limited access to core APIs. | Personal projects, educational use, initial testing, low-traffic websites. |
| Starter | $40 | 2,000,000 calls/month, 10-minute data updates, enhanced access to core APIs, some historical data. | Small web/mobile applications, startups, projects needing more reliability than free tier. |
| Developer | $120 | 10,000,000 calls/month, 5-minute data updates, full access to core APIs, extended historical data, Weather Maps. | Growing applications, business dashboards, internal tools, projects requiring moderate data freshness. |
| Professional | $400 | 50,000,000 calls/month, 1-minute data updates, advanced mapping layers, Weather Alerts, dedicated support. | High-traffic applications, real-time services, enterprise-level projects, critical infrastructure. |
| Enterprise | Custom | Unlimited calls, sub-minute data updates, custom features, dedicated infrastructure, SLA. | Large corporations, mission-critical applications, high-volume data analytics, bespoke integrations. |
The specific features and exact call limits for each plan are subject to change and are detailed on the official OpenWeatherMap pricing page. Users are encouraged to review these details to ensure the selected plan aligns with their project's requirements for API calls, data refresh intervals, and access to premium weather data products.
Free tier and limits
OpenWeatherMap's free tier is designed to provide developers with a robust starting point for integrating weather data into their applications without upfront costs. This tier includes a generous allowance of 1,000,000 API calls per month, making it suitable for personal projects, educational initiatives, and small-scale web or mobile applications. The data in the free tier is typically updated every 10 minutes, which is sufficient for many non-critical applications where real-time accuracy to the second is not a primary requirement.
Key limitations of the free tier include a lower data refresh rate compared to paid plans, restricted access to certain advanced features such as specific historical data ranges, and a limit on the number of locations that can be queried simultaneously. While it provides access to essential APIs like Current Weather Data and the One Call API, some specialized products, such as detailed Weather Maps or advanced Weather Alerts, are often reserved for paid subscribers. Developers should monitor their API usage to avoid exceeding the monthly call limit, which can lead to temporary service interruptions. For projects that anticipate exceeding these limits or require more frequent data updates, upgrading to a paid plan is necessary. Detailed information on the free plan's specifics can be found on the OpenWeatherMap API documentation.
Real-world cost examples
Understanding the practical implications of OpenWeatherMap's pricing model can be illustrated through various use cases:
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Personal Weather Dashboard (Free Tier): A developer building a personal weather dashboard for their local area and a few favorite cities might make 10 requests per hour for 5 locations, totaling approximately 3,600 calls per day, or about 108,000 calls per month. This usage falls well within the 1,000,000 calls/month free tier limit, incurring no cost.
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Small Business Website (Starter Plan): A small business website displaying current weather for customer locations in 20 different cities might refresh data every 15 minutes. This equates to 96 requests per day per city, or 1,920 calls daily across all cities. Over a month, this totals approximately 57,600 calls. If the website scales to serve 500 visitors an hour, with each visitor triggering a few API calls for specific weather data, the total could easily reach 500,000 to 1,000,000 calls per month. While this might fit the free tier initially, the Starter plan at $40/month provides a higher ceiling of 2,000,000 calls/month and more stable performance guarantees, making it a safer option for a public-facing application.
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Mobile Application (Developer Plan): A mobile weather application with 50,000 active users, each requesting current weather data twice a day and forecast data once a day, could generate a substantial volume of API calls. If each request involves 2 API calls (e.g., current and forecast), this would be 50,000 users * (2 current + 2 forecast) calls/day = 200,000 calls/day. Over a month, this accumulates to roughly 6,000,000 calls. This usage level would require the Developer plan, priced at $120/month, which offers 10,000,000 calls/month and more frequent data updates (every 5 minutes).
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Logistics & Mapping Service (Professional Plan): A logistics company integrating weather data for route optimization across 1,000 delivery vehicles, needing minute-by-minute updates for current conditions and short-term forecasts for each vehicle's location. If each vehicle checks weather every minute during an 8-hour shift, this is 1,000 vehicles * 60 minutes/hour * 8 hours/day = 480,000 calls/day. Over 30 days, this is 14,400,000 calls. This scenario would necessitate the Professional plan, starting at $400/month, which offers 50,000,000 calls/month and 1-minute data updates, crucial for real-time operational decisions.
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Agricultural Data Platform (Enterprise Plan): An agricultural platform monitoring weather conditions for thousands of farms globally, requiring hyper-local, sub-minute updates, historical data analysis, and custom alert systems. Such a platform would likely exceed even the Professional plan's limits and feature set, requiring a custom Enterprise plan with tailored call volumes, dedicated infrastructure, and specialized support to meet stringent performance and data requirements. These plans are negotiated directly with OpenWeatherMap.
How the pricing compares
OpenWeatherMap's pricing model is competitive within the weather API market, often providing a generous free tier compared to some alternatives. Many weather API providers, like Tomorrow.io's Weather API or AccuWeather's Developer program, also offer tiered subscription models or usage-based pricing. However, the exact call limits, data refresh rates, and included features can vary significantly.
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Free Tier Generosity: OpenWeatherMap's 1,000,000 free calls per month is notably higher than some competitors. For instance, some providers might offer 50,000 to 250,000 free calls, making OpenWeatherMap more accessible for initial development or smaller projects. This aligns with the common practice for API providers to offer a free tier to attract developers, as described in guides on API gateway pricing strategies.
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Starting Paid Plans: At $40/month for its Starter plan, OpenWeatherMap typically sits in a similar range to other entry-level paid plans from competitors like Weatherstack's pricing, which offers comparable call volumes for a similar monthly fee. The value proposition often comes down to the specific features included at each price point, such as historical data access, mapping capabilities, or specialized weather alerts.
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Data Freshness and Precision: For applications requiring very high data freshness (sub-minute updates) or hyper-local precision, comparing the cost per API call for specific data types (e.g., historical data, minute-by-minute forecasts) becomes crucial. While OpenWeatherMap offers 1-minute updates in its Professional plan, some specialized meteorological services might offer even more granular data at a higher premium. However, for most common use cases, OpenWeatherMap's refresh rates are adequate and cost-effective.
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Feature Set: When evaluating pricing, it's important to consider the breadth of the API's features. OpenWeatherMap includes a comprehensive set of APIs covering current, forecast, historical, and mapping data. Alternatives might specialize in certain areas, potentially offering deeper features for those specific aspects but at a higher cost or with fewer general-purpose options. Developers should assess whether the included features match their project requirements before focusing solely on call volume pricing.