In this study, the influence of concrete temperature assuming extreme hot season on strength properties, adiabatic temperature rise properties, and thermal stress analysis were investigated. The results showed that the strength properties were equivalent to those during the normal hot season. Although the adiabatic temperature rise properties had a difference between some measured and estimated values in the range of high-strength concrete, the influence of the difference between the measured and estimated equations for adiabatic temperature rise properties on the thermal stress analysis results was small.