Runna Launches Adapt for Heat, Auto-Adjusting Runner Paces From Individual Training Data

UK-based running coaching app Runna launched Adapt for Heat on July 29, 2026, available to all subscribers. The feature recalibrates target paces downward based on local heat and humidity, using each runner's personal training history rather than blanket regional adjustments. A color-coded hourly forecast helps users shift sessions to cooler windows. The go/no-go decision on dangerous heat remains with the runner.