Why does car stall when it rains?

A car may stall when it rains due to water entering critical electrical components, such as the ignition system, spark plugs, or battery connections, causing misfires or short circuits. Additionally, moisture can affect the fuel system, leading to poor combustion. Worn or damaged components, like spark plug wires or seals, are more vulnerable to water intrusion, increasing the likelihood of stalling in wet conditions. Proper maintenance and sealing can help mitigate these issues.