WeatherAPI.com

WeatherAPI.com is a developer-focused weather data provider that delivers current conditions, forecasts, historical data, and a wide range of supplementary feeds (marine, astronomy, air quality, alerts, sports, time zone, and IP geolocation) through a single, simple REST/JSON API. It positions itself as the easy-to-integrate option in the weather-API market, trading some of the hyperlocal depth of competitors like OpenWeatherMap's One Call 3.0 for clean JSON responses, a generous free tier (100K calls/month), and flat, predictable pricing. The company markets itself as trusted by 800,000+ developers and is a common pick for prototypes, side projects, dashboards, and digital-signage use cases.

The product's strongest selling point is its developer experience and price-to-value: a single API key works across all endpoints and persists when you upgrade, history reaches back to January 1, 2010 on paid plans, and forecasts extend up to 300 days on the Future API. Reliability is solid but not best-in-class, the public status page reports roughly 99.91-99.93% uptime over the trailing window, with occasional short outages (e.g., a 59-minute API incident on June 18, 2026). That sits below a hard 99.9%+ guarantee for the API endpoint and falls short of the four-nines reliability some enterprise weather vendors advertise; a formal SLA is reserved for the custom Enterprise tier.

Where WeatherAPI.com loses ground is depth and enterprise assurances. Users and comparison write-ups note occasional forecast inaccuracies and lighter hyperlocal/minute-level precision versus heavier providers, and historically the company drew criticism when it altered its free tier (it has since restored a 100K-call free plan). For teams needing minute-by-minute precipitation, dense numerical-weather-model access, or contractual uptime guarantees below the Enterprise tier, specialist providers (Meteomatics, The Weather Company, Xweather) are stronger. But for the large middle of the market that wants fast, affordable, clean weather data, WeatherAPI.com is a pragmatic default.