How does the cold affect your golf ball?
As the season turns to autumn and temperatures drop, the golf ball suddenly feels different against the clubface. Many golfers have the feeling that the ball becomes “dead” and that their shots lose distance, without really being able to put their finger on why. The explanation has more to do with physics than imagination, and it is simpler than many people think.
The ball actually becomes harder
The core and cover of a golf ball are made of materials that react to temperature. When it gets colder, the material stiffens slightly, which means the ball compresses less at the moment of impact. The energy from the clubhead simply isn’t transferred as effectively to the ball as it is when the ball is at room temperature, and the result is lower ball speed across the board. It isn’t just your imagination when a cold ball feels harder at impact—it really is.
Denser air produces a higher but shorter flight
The second factor has nothing to do with the ball itself, but with the air around it. Cold air is denser than warm air, which creates both more lift and more air resistance on the ball during flight. Many people think that more lift should mean longer shots, but air resistance has the greater effect. The result is a ball that often flies slightly higher but lands shorter than it would on a warm summer day, even with an identical swing.
How much of a difference does it really make?
The figures vary depending on the club and how they are measured, but a common rule of thumb is that a driver loses a couple of meters in distance for every ten degrees Celsius of temperature difference, while shorter clubs such as wedges are affected significantly less. The difference between a round played at 20°C and one played just above freezing can therefore amount to a club length or more on the longest shots. This is rarely the full explanation for a poor round, but it is worth keeping in mind before you overcompensate for a short shot in the cold, or take one club less on an approach shot simply because it felt right last summer.
The myth of switching to a softer ball in autumn
It is a common belief that you should switch to a softer ball with lower compression when temperatures drop. This can provide a softer feel in the cold and may suit some players better, but it is not a general solution for the distance lost when it gets cold. All golf balls are affected by lower temperatures, and one important factor is actually the ball’s own temperature. A cold ball becomes less elastic and can lose ball speed. Therefore, keeping the ball warm may make a bigger difference than simply switching to a lower-compression model.
A ball that has been sitting in the trunk of the car overnight is significantly colder, and therefore harder, than a ball that has been stored indoors. Keeping a couple of balls in your jacket pocket during the round, or avoiding leaving your bag in a cold car the day before, often makes a bigger difference than buying a new type.
What you can take away from this
The cold affects both the ball and the air it flies through, and together this results in shorter and slightly higher shots during autumn and winter. The solution is rarely to change ball models, but rather to keep the balls warm until tee-off and expect the distance to shrink slightly. Anyone who wants to see how different balls perform in their own game can use the ball guide to find a model that suits both their swing and their wallet all year round.
