Watermelon Smoothie Recipe

There’s nothing more refreshing than a chilled Watermelon Smoothie on a hot summer day. Light, juicy, and bursting with the sweet flavor of ripe watermelon, this smoothie feels like sunshine in a glass.

this Recipe

I first whipped this up during a sweltering afternoon with some leftover watermelon in the fridge. One sip, and it instantly became my go-to recipe for beach days, brunches, and everything in between. Whether you're looking for a hydrating breakfast, a post-workout cooler, or a healthy treat for the kids, this smoothie delivers.

Let’s dive into what makes this watermelon smoothie your new warm-weather essential.

Why You'll Love This Watermelon Smoothie

Get ready to meet your new favorite summer drink. This Watermelon Smoothie is not only incredibly easy to make, but it’s also packed with feel-good benefits that make it a winner for any occasion.

First off, it's ultra-hydrating and naturally sweet. Watermelon is over 90% water, which means every sip helps you beat the heat without needing added sugars or syrups. Perfect for cooling down after time in the sun.

It also takes just 5 minutes to prepare. With minimal ingredients and no fancy equipment required, you can throw this smoothie together at a moment’s notice – even when your blender’s buried in the back of the cabinet.

If you're watching your budget, this one’s for you. Watermelon is one of the most affordable fruits per pound, especially in the summertime. Add a banana or a splash of yogurt, and you’ve got a snack that feels fancy without breaking the bank.

Best of all, it’s totally customizable. Want it dairy-free? Sub in coconut milk. Need a post-gym protein hit? Add a scoop of your favorite powder. You can keep it simple or make it as nutrient-packed as you like.

Whether you're blending up breakfast or just need a sweet afternoon break, this smoothie fits the bill.

Ingredients Notes

What makes this Watermelon Smoothie stand out is the simplicity of its ingredients. Each one brings its own layer of flavor, texture, or nutrition – and you probably already have most of them on hand.

Start with seedless watermelon. The fresher and riper, the better. I like to cube and freeze mine ahead of time for a creamier texture without needing ice. If your watermelon isn’t super sweet, a touch of honey or maple syrup can help boost the flavor naturally.

Next up is banana. Just half of one gives the smoothie a silky smooth consistency and a hint of natural sweetness. Frozen bananas work especially well if you're after that thick, milkshake-like texture.

Greek yogurt adds creaminess and a nice dose of protein. You can use plain or vanilla depending on your sweetness preference. For a dairy-free option, coconut or almond yogurt works beautifully and adds a subtle tropical vibe.

A splash of lime juice adds a bright, tangy contrast that makes the watermelon flavor pop. It’s optional, but highly recommended if you love a slightly zesty finish.

Lastly, if your blender needs a little help, coconut water or regular water can thin things out. Coconut water adds electrolytes, making this smoothie even more hydrating.

As for equipment, all you need is a standard blender. No high-speed model required – just something that can handle frozen fruit.

How To Make This Watermelon Smoothie

Making this smoothie couldn’t be easier, and once you’ve tried it, you’ll wonder how you ever went a summer without it.

Start by prepping your fruit. Cube the seedless watermelon and place it in a single layer on a baking sheet to freeze for at least 2–3 hours. This step gives the smoothie a thicker, frostier texture without watering it down with ice.

Once frozen, add the watermelon cubes to your blender, followed by half a banana, Greek yogurt, a squeeze of fresh lime juice, and a splash of coconut water if needed.

Blend everything on high until smooth. Depending on your blender, this might take 30–60 seconds. If it looks too thick, add a little more liquid, one tablespoon at a time.

Taste the smoothie. If you’d like it sweeter, now’s the time to add a teaspoon of honey or maple syrup. Blend again briefly to combine.

Pour into a chilled glass and serve immediately. If you're feeling fancy, garnish with a sprig of mint or a small wedge of watermelon on the rim.

The whole process takes about 5 minutes, plus a little freeze time if you're starting from fresh fruit. The result? A creamy, icy-cold smoothie that's both satisfying and surprisingly light.

Storage Options

This smoothie is best enjoyed immediately after blending when it’s cold and at peak creaminess. However, if you have leftovers or want to prep ahead, there are a couple of options.

Store the smoothie in an airtight mason jar or lidded container in the refrigerator for up to 24 hours. Just be sure to give it a good shake or stir before drinking, as the ingredients may separate slightly over time.

For longer storage, pour the smoothie into an ice cube tray and freeze. Once frozen, transfer the cubes to a zip-top bag. When you're ready to enjoy, just re-blend with a bit of liquid for a fresh-tasting smoothie in minutes.

Avoid storing it at room temperature, as the fruit will oxidize and lose its vibrant flavor quickly.

To reheat – well, don't! This one is meant to stay frosty. But if it's too firm from the freezer, let it sit out for 5–10 minutes before blending again.

Variations and Substitutions

This smoothie is endlessly adaptable depending on what you’ve got on hand – or what you're craving.

Want a tropical twist? Replace the banana with pineapple chunks or mango. Both bring a sweet tang that plays beautifully with watermelon.

Looking for a dairy-free version? Use plant-based yogurt and almond or coconut milk instead of Greek yogurt and water. It keeps the creaminess while staying 100% vegan.

To turn it into a post-workout shake, just add a scoop of your favorite vanilla or unflavored protein powder. Collagen peptides work great too and blend in without altering the taste.

If you're after a smoothie bowl instead of a drink, go heavier on the frozen fruit and skip the added liquid. Then top with granola, chia seeds, or fresh berries for a spoonable treat.

Print