Longer, oval-shaped melons are considered “male” and tend to contain more water, making them less sweet. Rounder, more compact melons, or “female” ones, are generally sweeter. So, if you’re looking for a sugary bite, choose a round melon over an elongated one.

Finally, don’t be fooled by size alone.

Bigger watermelons aren’t always tastier—some can be overly watery and lack flavor. Instead, choose one that feels heavy for its size and has a medium or average shape. These usually offer the best balance of juiciness and sweetness—ideal for hot summer days and sharing with loved ones.