Simple and sweet watermelon juice (no added sugar)

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The easiest and most refreshing watermelon juice recipe ever

There are so many of reasons to love this watermelon juice: it’s super easy to make, very refreshing and delicious.
And the best part: you just need a blender to get all this thirst-quenching goodness!
Use this recipe any time you want a revitalizing and vitamin packed drink.

Fresh made watermelon juice with watermelon pieces behind

The inspiration for this juice came when making gazpacho with watermelon.
Where I live, tomatoes are not so great, so every summer when visiting my parents in South Spain, I go CRAZY having gazpacho.
This year I discovered for myself how great watermelon blends into this savory refreshment, so an idea popped up: “what if I just blend watermelon?”.
It only took us a sip to fall in love with this awesome beverage.
I hope you enjoy this watermelon drink too!

Why you’ll love this watermelon juice

Fresh made watermelon smoothie

Who doesn’t love the feeling of biting into a slice of juicy watermelon on hot summer days? It’s just so refreshing and delicious!
So, you may wonder: why make juice of it when eating watermelon is already a treat?

Well, it turns out that making your own 100% natural watermelon drink is surprisingly easy.
And it tastes like dessert, without needing ANY sweetener.

So, although I still love eating watermelon, here are some reasons to make some homemade watermelon juice today: 

  • Have you ever bought a watermelon that wasn’t so sweet? Making it into juice always makes the taste sweeter
  • Watermelon is very easy to puree, even with an old blender or per hand
  • This drink is very revitalizing when you’re not feeling hungry because of the heat
  • Too much watermelon at home? No one likes eating spoiled fruit! Making juice out of watermelon helps you finish it before it goes bad
  • Watermelon is a low calorie fruit that offers many benefits
  • Watermelon juice can be mixed with other ingredients for even more flavor combinations. The options are endless!

Watermelon juice or watermelon smoothie?

Before going further, let me make a confession: while we call this drink “watermelon juice”, it’s actually a smoothie.

Juicing extracts the water and flavor from the fruits and vegetables but discards any indigestible fiber found naturally in these foods.
Smoothies are blended so they contain both soluble and insoluble fibers.
That makes them gut friendlier.
The blending process also keeps your stomach fuller for longer because it takes more time to digest as opposed to juicing, which removes most of what provides satiety.

In this recipe, the watermelon doesn’t go though the process of juicing, but it’s blended instead.
So, you get the advantages of both things: this blended drink still contains the good fibers of the fruit while tasting like fruit juice. Watermelon magic!

Is natural watermelon juice sweet enough?

Oh yes! This refreshing summer drink is one of the sweetest drinks you can make without the need of any sweetener.
Of course, it helps if you use ripe watermelon, but this healthy drink is always deliciously sweet.
You may also add a pinch of salt to bring out the natural sweetness of this refreshing drink or splash some fresh lime or lemon juice for an extra zing.

How to make fresh watermelon juice

The secret to make this refreshing watermelon juice quickly and easily lies in using seedless watermelon.
We don’t want to strain this watermelon smoothie because it would not only remove the fiber, but also make the recipe much more laborious.
And I’m all for easy recipes!
But if you only have watermelons with seeds in stock, don’t worry; you can still prepare this fresh drink filtering out the seeds afterward, like pouring the juice though a mesh strainer.

The equipment couldn’t be easier also: you don’t need a juicer for this juice drink.
Since fresh watermelon cubes are very tender, the flesh becomes puréed quickly enough so you can use any blender in the kitchen.

Time needed: 10 minutes

How to make homemade watermelon juice

  1. Prepare the watermelon

    Remove the watermelon rind; chop the flesh into medium-sized (around 1 inch) watermelon chunksWatermelon chunks

  2. Blend

    Blend the cubed watermelon until you achieve an even consistency.
    [If you’re using watermelon with seeds, don’t forget to put the liquid through a mesh sieve]Blender and watermelon cubes

  3. Enjoy

    Serve cool. If you want, you can add some lemon or lime juice and decorate with some fresh mint leaves.Watermelon smoothie

Fresh watermelon smoothie
5 from 5 votes

Easy watermelon juice

How to make a refreshing and healthy watermelon drink with just one ingredient
Print Recipe
Prep Time:5 minutes
Blending:1 minute
Total Time:6 minutes


  • Blender or hand mixer


  • 1 cup seedless watermelon
  • pinch of salt/lemon juice Optional


  • Remove the watermelon rind and cut the flesh in cubes.
    Cubes watermelon with hand blender
  • Blend until smooth – it doesn’t take a minute. Any hand mixer will do it, no need for a fancy blender!
    Glass full of homemade watermelon juice


This smoothie can separate with time: give it an occasional swirl to avoid it!


Calories: 60kcal
Course: Dessert, Drinks, Snack
Cuisine: Mediterranean
Keyword: caffeine free, cold drink, fruits, juice, smoothie, vegan
Servings: 1 serving
Calories: 60kcal

The next time you or your kids are bored with usual summer treats, give watermelon juice a try.!
Not only will this instant thirst relief cool you off but it also tastes great too and it’s very easy to make.

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  1. 5 stars
    This watermelon smoothie was amazingly easy to
    prepare and I think it’s even sweeter than just eating watermelon. I love it!

  2. 5 stars
    I tried this watermelon juice and it was indeed delicious! It tastes so sweet, is hard to believe it’s all natural!

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