The watermelon ought to be substantial for its size. Have a go at contrasting the heaviness of your watermelon and another of equivalent size. The heavier one will be riper.
The underside of the watermelon ought to have a smooth yellow spot, known as field spot. The darker it is the better. In the event that the field spot is white or even non-existent, this presumably implies the watermelon was picked too early and won't be ready.
An immaculate ready watermelon ought to be dim green in shading and dull in appearance, as opposed to gleaming.
