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A whole watermelon can stay in the fridge for about 7 to 10 days if it’s uncut, and once you cut into it, the clock speeds up fast.
If you’ve been wondering how long can a watermelon stay in the fridge, the short answer is that an uncut watermelon holds up well for roughly a week to ten days, while a cut watermelon should be eaten within 3 to 5 days for the best taste and safety.
The exact time depends on a few things like how ripe it was when you bought it, how you store it, and whether it’s whole or sliced.
In this post, we’ll break down how long a watermelon can stay in the fridge, how to store it properly, and the signs that tell you it’s time to toss it.
Let’s dive in.
How Long Can a Watermelon Stay in the Fridge?
How long a watermelon can stay in the fridge really comes down to whether it’s whole or cut.
Here’s the breakdown so you know exactly what to expect.
1. Whole Watermelon: 7 to 10 Days
An uncut watermelon can stay in the fridge for about 7 to 10 days.
That said, a whole watermelon doesn’t actually need the fridge to stay fresh.
In fact, many people keep whole watermelons on the counter for a week or two before cutting them.
But if your kitchen runs warm or you want to extend its life, the fridge is a great option.
Just know that a whole watermelon can take up a ton of space, so plan accordingly.
2. Cut Watermelon: 3 to 5 Days
Once you slice into a watermelon, how long it can stay in the fridge drops to about 3 to 5 days.
Cut watermelon is more exposed to air, bacteria, and moisture loss, which speeds up spoilage.
The USDA recommends eating cut watermelon within 3 to 4 days for maximum freshness.
If you store it properly in an airtight container, you might stretch it to 5 days.
After that, the texture gets mushy and the flavor starts to fade.
3. Watermelon Chunks or Cubes: 3 to 4 Days
Pre-cut chunks or cubes follow the same rule as sliced watermelon.
They can stay in the fridge for about 3 to 4 days when kept in a sealed container.
The smaller the pieces, the more surface area is exposed, so they tend to dry out faster.
How to Store Watermelon in the Fridge the Right Way
Storing watermelon correctly makes a big difference in how long it can stay in the fridge.
Here are the best practices to keep it fresh.
1. Keep Whole Watermelon in the Crisper Drawer
If you’re storing a whole watermelon, place it in the crisper drawer of your fridge.
That area has the right humidity level to keep it fresh without drying it out.
Make sure it’s not squeezed against other items, since bruising can lead to faster spoilage.
2. Wrap Cut Watermelon Tightly
For cut watermelon, wrap the exposed flesh tightly with plastic wrap or place it in an airtight container.
This keeps air out and locks in moisture so the watermelon stays juicy.
If you’re using plastic wrap, press it directly against the cut surface.
3. Use Glass Containers for Chunks
Glass containers with airtight lids are ideal for watermelon chunks.
They don’t absorb odors, and they keep the fruit from drying out.
Avoid leaving chunks in an open bowl, since they’ll lose moisture and pick up fridge smells fast.
4. Don’t Wash Before Storing
Only wash watermelon right before you eat it.
Extra moisture on the surface encourages mold growth and shortens how long a watermelon can stay in the fridge.
Signs Your Watermelon Has Gone Bad
Even when you follow all the storage rules, watermelon can still spoil.
Here’s how to tell when it’s time to let it go.
1. Slimy or Sticky Texture
Fresh watermelon should be crisp and firm.
If the surface feels slimy or sticky, bacteria have taken over.
Toss it immediately.
2. Sour or Fermented Smell
A fresh watermelon smells mild and sweet.
If you catch a sour, tangy, or fermented odor, that’s a clear sign it’s past its prime.
3. Mushy Flesh and Dull Color
When watermelon goes bad, the flesh turns mushy and the vibrant red or pink color fades.
If it looks dull or brownish, don’t eat it.
4. Visible Mold
Mold can show up as fuzzy white, green, or black patches.
If you see any mold, throw the whole container out, because mold spreads quickly through soft fruit.
So, How Long Can a Watermelon Stay in the Fridge?
A watermelon can stay in the fridge for about 7 to 10 days if it’s whole, and 3 to 5 days once it’s cut.
Storing it properly in airtight containers or wrapping it tightly helps you get the most out of that window.
Always check for slimy texture, sour smells, or mold before eating, and when in doubt, throw it out.
Now you know exactly how long a watermelon can stay in the fridge, so you can enjoy it fresh every time.