Dew Effect in Cricket — How Dew Changes the Game in Day-Night Matches

**Dew** is one of the most influential factors in day-night cricket. As the temperature drops in the evening session, moisture condenses on the outfield grass — making the ball wet and slippery, the outfield faster, and fielding grips uncertain. Dew is not part of cricket's Laws, but it dramatically affects how captains think about the toss and match strategy.

How Dew Affects the Ball

• **Swing bowling:** Swing requires one side of the ball to be polished and dry. Dew moistens both sides equally, destroying the condition differential and preventing conventional and reverse swing.
• **Spin bowling:** Spinners grip the ball with their fingers on the seam. A wet ball slips out of the fingers, reducing revolutions (RPM) and therefore spin. Turn and drift both decrease significantly.
• **Seam movement:** Seam bowlers rely on a proud, upright seam to generate deviation off the pitch. Dew flattens the seam and softens the leather, reducing seam movement.
• **Outfield:** A dew-covered outfield is faster and slicker — boundaries come more easily, and fielders diving or sliding lose grip. Ground fielding errors increase.

The Toss and Dew

In day-night matches in subcontinental countries (India, Pakistan, Bangladesh, Sri Lanka), captains who win the toss almost always **bowl first** and bat second — specifically to bat in the dew period when bowling is harder. The team batting second benefits from:

• A wet, slippery ball that swing and spin bowlers cannot grip properly.
• A faster, dew-covered outfield where boundaries come more easily.
• Psychological advantage — they know exactly what they need to chase.

Rules Around Dew

There are no Laws that address dew directly. Both teams face the same conditions if batting in the same session, and the umpires cannot intervene to manage the ball differently. However, fielding captains are allowed to use the designated ball-drying cloth (a small towel agreed before the match) to dry the ball between deliveries. Excessive slowdown for ball-drying can attract umpire warnings for slow over rate.

Dew in Pink-Ball Tests

Day-night Test matches use a **pink ball** instead of red, partly because pink is more visible under floodlights. However, the pink ball's lacquer coating is less durable than the red ball's, and dew further accelerates wear — leading to Test matches in the evening session sometimes producing flat, batter-friendly conditions that frustrate bowling sides.