Fitness
Wet Bulb Globe Temperature
Wet bulb globe temperature combines heat, humidity, wind, and sun into one outdoor safety index—higher values demand stricter training limits.
Wet bulb globe temperature (WBGT) combines dry bulb, humidity, wind, and radiant heat into one outdoor safety index used by schools, military, and sports organizations. Higher WBGT means stricter activity limits—more water breaks, shorter sessions, or cancellation.
It predicts heat illness risk better than air temperature alone in sun-exposed fields. Check local WBGT charts or apps before team practices.
Common questions
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Is WBGT the same as heat index?
Related but not identical—WBGT includes radiant heat and is common for athletics policy. Heat index is a public weather product; both signal when to ease outdoor load.
Related terms
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