Few things say summer quite like a juicy, refreshing watermelon. Whether you’re serving it at a barbecue, taking it on a picnic, or simply enjoying a few slices on a hot afternoon, watermelon is an easy favorite.

But because a whole watermelon can be surprisingly large, it’s common to have plenty left after cutting it open. That raises an important question: How long does cut watermelon actually last, and what’s the best way to store it?

How Long Does Cut Watermelon Last in the Fridge?

Once you cut into a watermelon, its shelf life becomes much shorter.

When properly refrigerated, cut watermelon generally keeps for around 3 to 5 days. To help it stay fresh, place the pieces in an airtight container or wrap them tightly with plastic wrap. This helps retain moisture while also preventing the fruit from absorbing odors from other foods in your refrigerator.

For the best results, keep your refrigerator at a safe, consistent temperature and avoid leaving the cut fruit sitting out unnecessarily.

How Long Can Watermelon Sit Out?

Cut watermelon doesn’t stay fresh for long at room temperature.

If you’ve sliced a watermelon and left it on the kitchen counter, at a picnic, or during an outdoor gathering, it’s important not to let it sit out for extended periods. Around 4 to 6 hours at room temperature can significantly affect its freshness, particularly in warm conditions.

Planning a picnic or summer gathering? Keep cut watermelon chilled in a cooler with plenty of ice or frozen packs until you’re ready to serve it.

Can You Freeze Watermelon?

Yes, you can freeze watermelon—but don’t expect it to have the same crisp texture once it’s thawed.

Freezing causes the water inside the fruit to form ice crystals, which changes the texture. Once thawed, watermelon tends to become softer and somewhat mushy.

That doesn’t mean frozen watermelon has to go to waste. It can be excellent in smoothies, frozen drinks, desserts, or as a refreshing frozen snack.

To freeze it, cut the watermelon into bite-sized pieces and arrange them in a single layer on a baking sheet. Freeze until solid, then transfer the pieces to a freezer-safe bag or container.

For best quality, frozen watermelon is generally best used within about a year.

How Can You Tell If Watermelon Has Gone Bad?

Sometimes the easiest way to determine whether watermelon is still good is simply to use your senses.

Watch for these warning signs:

• Sour or unpleasant smell: Fresh watermelon should have a clean, sweet smell.
• Slimy texture: A slippery or unusually soft surface can indicate spoilage.
• Mold: Any visible mold is a clear reason to discard the fruit.
• Discoloration: Significant changes in color or appearance can indicate that the watermelon is no longer fresh.
• Unusually mushy texture: Some softness is normal after freezing, but fresh watermelon that has become excessively mushy may have spoiled.

If you’re unsure whether your watermelon is still safe to eat, it’s better to throw it away than take a chance.

The Best Way to Keep Watermelon Fresh

The key to extending the life of cut watermelon is simple: keep it cold, covered, and protected from contamination.

Refrigerate it promptly after cutting, store it in an airtight container, and try to enjoy it within a few days for the best flavor and texture.

And if you have more watermelon than you can possibly eat, freezing it is a convenient option—especially if you plan to use it later in smoothies or frozen treats.

With the right storage, you don’t have to let that leftover summer favorite go to waste.