When in water, individuals often do not feel thirsty, but dehydration can still occur as the body does not absorb water from external sources like pools. Even in high humidity environments, the body continues to lose water through exhalation and perspiration, necessitating regular hydration. Drinking hot water may allow for larger quantities to be consumed comfortably, whereas cold water might lead to a feeling of fullness more quickly. The temperature of water does not significantly affect hydration since the body will adjust the temperature of ingested water to its own. Ultimately, while the sensation of thirst may vary with temperature, maintaining adequate hydration remains essential regardless of environmental conditions.