How to pick a good watermelon
Five signals reveal a ripe, sweet watermelon before you slice it open — the field spot, the sound, the weight, the shape, and the stem.
1. The yellow field spot
Flip the melon over. The spot where it sat on the ground while ripening is the single most reliable tell. A deep, creamy yellow means it stayed on the vine long enough to fully ripen. A white spot means it was picked early and will taste bland.
2. The hollow thump
Give it a firm knock with your knuckles. Ripe watermelons sound hollow because the cells inside break down slightly and fill with air as sugar develops. A tight, high-pitched sound usually means it is under-ripe; a soft, mushy thud often means it is over-ripe.
3. Heavy for its size
Pick up two melons of about the same size and compare. The heavier one is riper and juicier — a ripe watermelon is roughly 92% water, so more weight means more juice.
4. Shape, stripes, and rind
Prefer a uniform, symmetrical melon — irregular bumps often mean uneven watering and uneven ripening. The rind should be a dull dark green with clearly contrasting stripes. A shiny, glossy rind is a sign it was picked too soon.
5. The stem
A dry brown stem means the melon detached naturally from the vine when it was ripe. A green stem means someone cut it off early.
Double-check with the color tool
The Best Produce Picker now supports watermelon. Snap a photo of the field spot on the underside of the melon — a creamy butter-yellow reads as ripe; a white patch reads as unripe.
Frequently asked
How do you tell if a watermelon is ripe?
Look for a creamy yellow field spot, a deep hollow thump when tapped, heavy weight for its size, a dull dark green rind with contrasting stripes, and a dry brown stem.
What does the yellow spot mean?
It is the field spot — where the melon rested on the ground while ripening. A rich butter-yellow means it fully ripened on the vine; white or pale means it was picked early.
Should a ripe watermelon sound hollow?
Yes. A ripe watermelon gives a deep, hollow, drum-like sound when knocked. A dull or high, tight thud usually means it is under- or over-ripe.