How Dew Affects Evening Cricket: The Bowling Team's Nightmare
Why dew is one of the most significant environmental factors in limited-overs cricket — how dew settles on the outfield and the ball in evening sessions, why it makes the ball uncontrollable for spinners and ungrippable for seamers, the toss decision in dew-affected matches, and why teams in tropical climates plan around it.
What Is Dew and Why Does It Form?
Dew is moisture that condenses on surfaces as the temperature drops during the evening. When the air temperature falls below the dew point (the temperature at which air becomes saturated with moisture), water vapour condenses on surfaces that are cooler than the ambient air — including the cricket outfield, the ball, and fielders' clothing. In tropical and subtropical regions (including most of India, Pakistan, Bangladesh, Sri Lanka, and the Caribbean), evening dew is common during specific seasons, particularly October to February when day-night ODIs and T20s are most frequently played.
The dew settles particularly quickly on the outfield because grass blades radiate heat faster than the air, cooling below the dew point earlier. Within 2-3 overs of the dew beginning (typically around overs 30-35 in an evening ODI or overs 10-12 in a T20 that starts in the late afternoon), the outfield is visibly wet and the ball becomes damp from contact with the grass. Damp grass on the ball's surface makes the leather slippery and removes the differential between the smooth and rough sides — eliminating both conventional and reverse swing.
Effect on Bowling
Dew affects spin bowling more dramatically than pace bowling, though both are impacted. A spinner who relies on finger friction to spin the ball (off-spinners, finger spinners) finds the damp ball difficult to grip tightly enough to impart full spin. The ball slips out of the fingers at release, producing flatter, quicker deliveries that turn less — in extreme dew, the spinner may produce something closer to a gentle medium-pace delivery than a sharply turning off-break. Leg-spinners (who use wrist rather than finger rotation) are slightly less affected but still find the damp ball harder to control.
Pace bowlers face a different problem with dew: the wet ball is harder to grip for accurate seam-up bowling. A pace bowler who is trying to land the ball on the seam for seam movement finds the wet leather harder to control at the release point — the ball slips slightly, producing unpredictable delivery trajectories (some deliveries are accurate, others wide or short of intended length). The wetness also eliminates reverse swing potential because the ball's surface differential (smooth side vs rough side) is neutralised by uniform wetness.
The Toss Decision in Dew Conditions
Dew conditions dramatically influence the toss decision in evening ODIs and T20s. The team that bats second — facing the bowling attack in the dew-affected evening session — has a significant advantage: the bowlers are more limited and the ball is harder to control, making the chase easier than a first innings would have been in the same conditions. This is why team captains at venues with predictable evening dew (Eden Gardens in Kolkata, Wankhede Stadium in Mumbai, most Bangladesh venues) typically elect to field first when they win the toss — bowling first in the dry conditions and then batting under dew is strategically preferable to the reverse.
Managing Dew
Ground staff apply anti-dew substances to outfields in some venues — silicon-based sprays that slow the dew's formation on the grass surface. The effectiveness is limited: heavy dew will settle regardless of treatment, and anti-dew treatments are typically only partially effective against strong evening condensation. Some venues have installed heating systems under the outfield to keep the surface temperature above the dew point, preventing dew formation — these are expensive and rare. More commonly, teams simply accept dew as a match condition and plan their tactics around it (toss decisions, when to bowl the spinner, when to use the drier side of the ball).
Frequently asked questions
Can dew cause a match to be abandoned?
No — dew makes conditions more difficult but does not make the pitch unplayable. Unlike rain (which soaks the pitch itself and makes batting and fielding unsafe), dew affects only the ball and outfield. Umpires can stop play to wipe the ball with a dry cloth, and ground staff regularly apply drying cloths to the ball throughout the evening session. Play continues under dew unless the outfield becomes genuinely dangerous (e.g., slippery enough to risk fielder injuries on diving catches).
Does dew affect Test cricket?
In day-night Tests (which continue under floodlights into the evening), dew can affect the pink ball used in those matches. The pink ball's different lacquer treatment means it absorbs dew slightly differently from the red ball — teams bowling in the evening session of a day-night Test have noticed the pink ball becoming harder to control in dew conditions. The pink ball's construction is partly designed to resist dew absorption (harder lacquer) but is not immune. Day-night Test schedules often place the bowling team's first innings in the daylight hours to avoid this.
Why do some venues have more dew than others?
Dew formation depends on the local climate's temperature range between day and evening. Tropical coastal venues (like Colombo, Dhaka, Mumbai) experience the most dew because the high daytime humidity means the dew point is reached very quickly as temperatures drop in the evening. Inland venues at altitude (like Johannesburg, Christchurch) experience less dew because the drier air has a lower dew point — the air must cool more before condensation begins. High-altitude venues in Australia (like Brisbane) have less dew than low-altitude venues in India.