Watermelon Mojitos Recipe

By Jessica Hylton - - Updated

These Watermelon Mojitos are incredibly easy to make, only 5 ingredients and are a perfect refreshing, minty summer cocktail!

Two glasses of watermelon mojitos with sprigs of mint in them.

Back at it again with another Watermelon recipe, but hey – remember we are preparing for summer, okay? Also, it’s the WEEKEND so you’re going to need a great cocktail to celebrate. During our fun filled pre-Memorial Day celebration BBQ filled with amazing grilled veggies, I made the bold declaration that I was going to make Watermelon Mojitos for the first time, completely untested and went ahead and used ALL of the watermelon in the house on the first go.

Now completely aware that this could end in total failure, I went forth brave (foolish?) and whipped this recipe together. The very first comment from my bestie was “I hope you wrote down exactly what you did for this recipe, because YUM – this is a keeper.” 

Close up of a watermelon mojito in a tall glass with a sprig of mint.

I’ve been a watermelon addict all my life, and have found that anything it goes into – popsicles, by itself, a sorbet, a salad, the list goes on – it all comes out pretty perfect. Watermelons themselves are so versatile and refreshing in nature that they give that effect to anything and everything they are added to. Case in point – these shining watermelon mojitos.

Sliced watermelon on a wooden board.

Sure, mojitos are great all by themselves thanks to the magic of mint, and well, rum. What happens when you add juicy, sweet and fruity watermelon to the mix? You may as well be automatically transported to a tropical (hey!) island on the beach, sipping on these watermelon mojitos while gazing into the deep, clear blue sea. That immediate imagery is incredibly tempting, and something I kind of need to do like yesterday, but that’s exactly how you’ll feel after you sip on this.

Now, I’m not trying to say that a cocktail drink will give you amazing health benefits, but it does help with watermelon is 90% water, is also loaded with vitamins A, B6 and C, antioxidants and amino acids among other great benefits. This drink is so refreshing and will definitely help with the summer heat.

P.S. While I did add natural homemade simple syrup, I would definitely taste the drink before adding the simple syrup and adjust based on how sweet your watermelon is.

 Top down shot of watermelon mojitos on a white table top.

Look out summer, here we come! I know, super lame ending, but it sounded really preppy AND cool in my head. I’ll just stick to creating the yummy recipes, yah?

Two tall glasses of mojito on a white table.



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Watermelon Mojitos Recipe

These Watermelon Mojitos are incredibly easy to make, only 5 ingredients and are a perfect refreshing, minty summer cocktail!
by: Jessica in the Kitchen
Prep Time 10 minutes
Cook Time 0 minutes
Total Time 10 minutes
Servings 5 servings
Course Drinks, Drinks & Beverages
Cuisine American, Universal
  • 1/2 a medium size watermelon about 4 lbs watermelon, seeds removed and cut into chunks
  • 1/3 cup freshly squeezed lime juice
  • 3/4 cup to 1 cup white rum
  • 20-30 fresh mint leaves muddled
  • 1/2 cup simple syrup* see notes for how to make it


  • Add your watermelon chunks to a food processor or high speed blender until smooth, about 30 seconds to 1 minute in the food processor or in the blender.
  • Pour the pureed watermelon into a large pitcher and add in the lime juice, muddled mint leaves and stir. Add in the white rum. Stir vigorously for about 15-30 seconds to incorporate.
  • Taste and add the appropriate amount of simple syrup based on the sweetness of your watermelon, up to ½ cup simple syrup, and stir again.
  • Pour into an ice filled glass and enjoy!
  1. This recipe is vegan and gluten free. I’ve used both a Jamaican Appleton White Rum and a Brazilian White Rum, so any white rum should be fine! If your watermelon has seeds, you should remove the seeds. Alternatively, you could strain the watermelon but you will miss that cool refreshing watermelon taste.
  2. You can make the simple syrup by boiling ½ cup sugar (cane sugar, brown sugar, coconut sugar or any granulated sugar) with ½ cup water until completely liquid, stirring often. Cool it down, then measure it out! This makes a bit more than ½ cup simple syrup, closer to ¾ cup, so use as much or as little of it as you want depending on the sweetness of your watermelon.
    You can store this Mojito recipe in the pitcher in the fridge for several days.
  4. Feel free to add more or less rum!


Calories: 316kcal | Carbohydrates: 61g | Protein: 3g | Fat: 1g | Saturated Fat: 1g | Sodium: 26mg | Potassium: 567mg | Fiber: 2g | Sugar: 53g | Vitamin A: 2730IU | Vitamin C: 43mg | Calcium: 48mg | Iron: 2mg
by Jessica


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These Watermelon Mojitos are incredible easy to make, only 5 ingredients and are a perfect refreshing, minty summer cocktail!

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Recipe Rating


  1. What a beautiful and refreshing looking drink! Perfect for summer!

  2. This is so BEAUTIFUL!

  3. I wish it was summer here in Australia to justify something as cool as these Mojitos! love the photos Xx

  4. Tally erp 9 says:

    This sounds amazing!

  5. Kim Daniels says:

    This drink looks amazing! I love watermelon juice. Beautiful photos!


  6. Ann says:

    How many does this serve? I am making these this weekend. It only requires 1/4 cup of rum?

    • Jessica says:

      Hi Ann,

      Sorry I thought I replied! Yes I used Jamaica White Rum, but you can add more rum after tasting if you’d like. This made about 8-10 cups. Hope that helps!

  7. These look incredibly refreshing! One of my girls and I are going on vacation in a few weeks and this looks like the perfect, quick and easy drink to take to the beach! Love it

  8. Aggie says:

    These are perfect for summer!!

  9. Kelly says:

    These look SO pretty and refreshing! Definitely craving a big batch now!

  10. Judy says:

    What kind of mint do you use?

    • Jessica says:

      Hi Judy,

      I’m not really sure haha but it is some variety of peppermint/spearmint/apple mint which all look the same and have a similar taste. I hope that helps and I hope you enjoy!!


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