How to Handle time_zone Offsets, epoch Fields, and DST Gaps Without Getting Burned
WeatherAPI returns both local timestamps and epoch values — here’s how they interact with DST, which one to trust, and where UTC-naive code quietly breaks.
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Moon Phase Data from WeatherAPI: What the Fields Mean and How to Build Accurate Rise/Set Logic
WeatherAPI returns moon phase, moonrise, and moonset — but using them correctly requires knowing what the fields actually represent. Here’s how to do it right.
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Freezing Level in API Responses: What It Is, Why It’s Not in the Payload, and How to Derive It
WeatherAPI doesn’t return freezing level altitude directly. Here’s the exact method to derive it from temp, dew point, and lapse rate — with real code.
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How to Interpret pressure_mb Changes Over Time: Building a Storm Approach Detector
Raw pressure_mb values aren’t useful alone. Learn how to use rate-of-change logic on WeatherAPI forecast data to detect approaching storms before they arrive.
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How to Detect Fog Programmatically: Using Visibility, Dew Point Spread, and Condition Codes Together
Fog detection via weather API is trickier than it looks. Here’s how to combine visibility, dew point spread, and condition codes reliably in your app.
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Condition Codes vs. Raw METAR: Why You Should Stop Treating Them as Equivalent
WeatherAPI condition codes are not a direct METAR passthrough. Here’s what the mapping actually does, where it loses fidelity, and when raw data matters.
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Humidity Is Not Humidity: vapor_pressure_deficit and why absolute humidity changes what your app should do
Relative humidity alone misleads. Here’s how to derive VPD and absolute humidity from WeatherAPI data, and when each one actually matters for your use case.
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How to Build a Hyper-Local Heat Stress Index Using WeatherAPI’s Hourly Forecast
Build a real-time heat stress index from WeatherAPI hourly data using WBGT approximation, humidity, and solar load — with working Python code.
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Wind Direction Fields in Weather API Responses: Why wind_dir and wind_degree Aren’t Always Telling You the Same Thing
wind_dir and wind_degree look redundant until they disagree. Here’s what each field actually represents and how to use both without getting burned.
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What feelslike_c Actually Calculates — and When to Stop Trusting It
WeatherAPI’s feelslike_c blends wind chill and heat index — but the thresholds and edge cases matter. Here’s what’s actually being calculated and where it breaks.