Humidity is often overlooked by golfers, but it has a significant impact on how far the ball travels and how the course plays. High humidity creates denser air, which affects ball flight in ways many golfers don't fully understand. Learning to account for humidity can help you club correctly and manage your expectations.
Air density is the key factor. In high humidity, the air is denser, which creates more resistance to the ball's flight. This means the ball doesn't travel as far in humid conditions compared to dry conditions. Conversely, in low humidity, the air is thinner and the ball travels farther.
The effect is subtle but measurable. On a hot, humid day at sea level, you might lose 2-5 yards compared to a cool, dry day. At high altitude where air is thinner, you'll gain distance. This is why golf tournaments held in Denver or Mexico City often see lower scores – the thin air allows the ball to travel farther.
Temperature and humidity work together to affect air density. A hot, humid day creates denser air than a cool, dry day. This is why summer rounds often feel shorter in distance than spring rounds, even though the temperature is higher. The humidity negates some of the distance gains from the warmer weather.
Professional golfers and serious amateurs account for these factors. They know that on a humid summer day, they might need to club up compared to a cool spring day, even if the temperature is higher.
High humidity also affects how the course plays. Greens tend to be softer and more receptive in humid conditions. The grass holds more moisture, making approach shots stop more quickly. This is generally favorable for accurate shot-makers.
Explore our weather guide for comprehensive information about all weather factors. For tips on adjusting your game, visit our golf tips section.