Soup is not surrender. A steaming bowl in humid weather looks like a mistake only if eating is treated as an exercise in lowering body temperature, rather than supplying fluid, nourishment and pleasure. Temperature tells too little. A chilled drink answers thirst, but broth can answer several demands at once, especially when heat makes a substantial meal seem uninviting.
The cooling claim needs caution. Although hot liquids can stimulate sweating, thermoregulation depends on whether that sweat evaporates, because evaporative heat loss, not sweat production alone, removes heat effectively from the body. Humidity changes the bargain. When the air already holds abundant water vapor, evaporation slows, so a hot bowl cannot be assumed to cool its eater and may instead add to the body's heat load. Broth still supplies water. Its sodium can contribute to replacing sweat losses, although salt content varies widely and ordinary meals often supply enough without any special effort.
Appetite offers another explanation. Soup combines liquid with ingredients such as vegetables, beans, fish or meat, allowing a bowl to provide nutrients that a sweet cooling drink may lack, depending on the recipe and portion. Comfort also carries weight. Serving habits and familiar flavors can outlast the weather, while prolonged cooking softens many ingredients and produces aromas that make a modest meal appealing. Neither choice excludes the other. A bowl can accompany drinking water rather than compete with it, leaving the apparent contradiction suspended in the steam above a meal.