Why API-Key-Per-Tenant Is the Wrong Pattern for Multi-Tenant Weather Apps (And What to Build Instead)
Giving each tenant their own WeatherAPI key creates quota, caching, and deduplication headaches. Here’s a better architecture pattern.
API
Tutorial
Why Snow Depth Fields Reset at Midnight: Understanding Accumulation Windows and Building a Reliable Storm-Total Tracker
WeatherAPI’s snow fields don’t behave the way most developers expect. Here’s what actually resets when, and how to build a reliable storm-total accumulation tracker.
Tutorial
Why air_quality AQI Values Differ by Country — and How to Build a Display Layer That Handles All of Them
WeatherAPI returns multiple AQI standards in one response. Here’s why they diverge, which one to trust by region, and how to build a display layer that handles all of them.
API
Why uv_index Spikes at High Altitude Before Cloud Cover Does: Understanding the Fields That Don’t Move Together
UV index and cloud cover fields can move in opposite directions at elevation. Here’s why, and how to build altitude-aware UV logic in your app.
Tutorial
Why condition_code Mapping Breaks When You Cross Language Boundaries: Building a Locale-Safe Condition Display Layer
WeatherAPI condition codes are numeric — but mapping them to user-facing text in multiple locales breaks in subtle ways. Here’s how to build around it.
API
Why Snow Water Equivalent Gets Dropped from API Responses (And How to Back-Calculate It from What You Do Get)
SWE is missing from most weather API responses. Here’s why, and how to estimate it from totalsnow_cm, temp, and humidity fields you already have.
Tutorial
How to Build a Realtime Wet Bulb Globe Temperature (WBGT) Estimator Using WeatherAPI Fields
WBGT isn’t in your API response — but you can derive a useful estimate from temp, humidity, solar radiation, and wind. Here’s how to build it.
API
Why moon_phase Isn’t Enough: Building Lunar Illumination Estimates from WeatherAPI’s Astronomy Fields
moon_phase strings tell you the phase name, not how bright the sky actually is. Here’s how to derive lunar illumination from WeatherAPI’s astronomy fields.
API
Why vis_km Collapses at Night: Visibility Fields, Sensor Limits, and Building Fog Detection That Actually Works After Dark
Visibility fields in weather APIs behave differently after dark. Here’s why vis_km breaks down at night and how to build fog detection that accounts for it.
API
Why humidity_pct Alone Will Mislead You: Building Evapotranspiration Estimates from WeatherAPI Fields
humidity_pct alone tells you almost nothing about water demand. Here’s how to derive ET₀ estimates from WeatherAPI’s hourly fields — and where the math breaks down.