Final answer:
In summer, warm air holds more water vapor than cool air, leading to higher humidity and a sticky feeling.
Step-by-step explanation:
In summer, it is more likely to feel sticky because warm air can always hold more water vapor than cool air. When the air temperature rises, it has the ability to hold and retain more moisture, leading to increased humidity. This elevated humidity makes the air feel heavier and increases the chance of feeling sticky.
Learn more about Causes of feeling sticky in summer