Why Cloud Cover Percentages Are Lying to You (And What to Use Instead)
Cloud cover % from weather APIs is a model output, not a measurement. Here’s what the number actually means, where it breaks down, and what to query instead.
API
API
How HRRR, NAM, and GFS Differ — and Which One to Trust for Your Use Case
HRRR, NAM, and GFS aren’t interchangeable. Here’s how each model works, where each breaks down, and how to pick the right one for your app.
API
How to Use weather_alerts Correctly: Rate Limits, Deduplication, and the Edge Cases That’ll Trip You Up
A practical guide to consuming weather alerts via API without duplicates, missed events, or alert fatigue. Real patterns for polling and caching alert data correctly.
API
How to Use dew_point and humidity Together to Build a Real Feels-Like Layer
WeatherAPI returns dew point, humidity, and feelslike separately. Here’s how to combine them to build a more honest comfort layer in your app.
API
Wind Shear in API Responses: What the Numbers Actually Mean and How to Use Them
Wind shear data from weather APIs is often misread or ignored. Here’s what the numbers mean, why they matter, and how to actually use them in your app.
API
How Wet Bulb Temperature Works and Why Your API Response Probably Doesn’t Include It
Wet bulb temperature isn’t in most API responses — here’s the formula, why it matters for heat safety apps, and how to derive it from what WeatherAPI does return.
API
Why Weather Forecast Confidence Degrades Over Time (And How to Expose That to Your Users)
Forecast accuracy drops fast beyond 3 days. Here’s how to surface that uncertainty honestly in your app using WeatherAPI data and real model behavior.
API
Polling vs. WebSockets vs. Webhooks: Choosing the Right Weather Data Delivery Pattern for Your App
Polling, WebSockets, and webhooks each have real trade-offs for weather data apps. Here’s how to pick the right one — with concrete latency and cost implications.
Tutorial
Pressure Altitude vs. Density Altitude: Pulling Real-Time Data for In-App DA Calculations
How to use WeatherAPI temperature, pressure, and humidity data to compute density altitude in real time — with code and the edge cases that bite pilots.
API
Marine Weather Routing: How to Use Forecast Data to Flag High-Risk Offshore Windows
Learn how to use WeatherAPI forecast data — wind, wave height, pressure tendency — to programmatically flag dangerous offshore routing windows.