UV index
Sun exposure is a separate weather decision.
UV describes the intensity of sunburn-producing ultraviolet radiation. It is not a temperature scale: a comfortable, breezy or partly cloudy day can still require protection.
Miami is the only indexed UV city pilot while we validate usefulness and search demand.
Understand the scale
Check the hour, not only the daily maximum.
UV index scale
Read the standard 0–11+ categories and the protection guidance associated with them.
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UV index explained
Learn about peak timing, cloud misconceptions, elevation and reflective surfaces.
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Miami UV index today
View the forecast date, hourly samples and provider daily maximum for Miami.
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Heat index hub
Check the humidity-driven heat burden separately from ultraviolet exposure.
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Why only one city page?
HeatGuard does not automatically index every location variation. We are testing whether the Miami page provides a useful hourly answer before publishing additional UV city pages. You can still search any supported U.S. location from the homepage for combined heat and UV planning.