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This refreshing Watermelon Mojito recipe is the ultimate summer rum cocktail! Mix fresh watermelon juice with white rum, simple syrup, lime juice, muddled mint leaves, and a splash of club soda together and you will be sipping your way through summer parties and poolside gatherings!

Check out these Tropical Rum Drinks for even more fruity cocktail recipes!

Three watermelon mojitos with lime wedges and mint leaves with a pitcher in the background.

I’m not sure what it is about watermelon, but I just can’t stop turning this delicious summer fruit into cocktails! They are naturally sweet, easy to work with, the color is gorgeous, and you can freeze chunks to have on hand all year long. And I’m not the only one, they are some of your favorite cocktail recipes as well.

More Easy Watermelon Cocktails

Two copper mugs filled with ice , ginger beer, watermelon juice, and vodka with watermelon wedge and mint leaves garnish.

Watermelon Moscow Mule

Frozen watermelon martini with two watermelon balls for garnish.

Fresh Watermelon Martinis

Looking down on a frozen watermelon margarita with a lime wedge garnish and green striped straw.

Frozen Watermelon Margaritas

What you will need

Ingredients needed to make watermelon mojitos. cookingwithcurls.com

Fresh watermelon cut into chunks, pureed in the blender, then strained into a seedless juice
White rum, like Bacardi
Simple Syrup just in case the watermelon is not as sweet as expected – adjust according to taste
Fresh mint leaves and limes to give us that traditional mojito flavor
A splash of club soda to give this fun cocktail some fizz, and keep it from getting too strong
A muddler, a citrus juicer, a blender, and a fine-mesh strainer

Be sure to check out the detailed printable recipe card below

Two glasses with red cocktail garnished with mint leaves and watermelon wedges.

How to make watermelon mojitos

Watermelon mojitos by the pitcher

Place the watermelon cubes in a blender and puree until smooth and frothy.

Pour the mixture through a fine-mesh strainer into a large measuring cup or pitcher, pressing with a spoon to release all of the juice.

Pureed watermelon going through a fine mesh sieve into a large measuring cup.

Discard solids and set aside.

Four cups of watermelon juice in a glass measuring cup.

Muddle the fresh mint leaves with some crushed ice and lime juice in a cocktail shaker or measuring cup.

Mint leaves, crushed ice, and lime juice muddled in a glass measuring cup.

Pour the mint mixture, watermelon juice, and simple syrup into a serving pitcher. Stir to combine.

Pour mojitos into eight ice-filled glasses…

Three cocktail glasses filled with ice chunks with a lime wedge and two black cocktail straws.

Top off with club soda and serve immediately garnished with a watermelon wedge and additional mint leaves.

Three glasses and a pitcher filled with a bright pink cocktail garnished with watermelon and lime wedges with fresh mint sprigs.

Single serving Watermelon Mint Mojito

Muddle the .25-ounces of lime juice, 1 tablespoon of simple syrup and 4 mint leaves in a cocktail shaker.

Add 1.5-ounces of rum and 0.5 cup of watermelon juice to the cocktail shaker. Fill with ice and shake until well chilled.

Strain into a tall glass with fresh ice and top off with 0.5 cup of club soda.

Garnish with watermelon, lime wedges, and fresh mint sprigs.

Recipe Notes & Tips

For icy cold cocktail, use icy cold ingredients. Chill the watermelon juice, simple syrup, and rum in the refrigerator for several hours before hand. Added bonus points if you also chill your glasses as well.
The watermelon juice and simple syrups can be made 4 days in advance and stored in the refrigerator until ready to serve.
For Watermelon Mojito Mocktails – leave out the rum.
You can get extra fancy and strategically add thin lime slices and additional mint leaves to the pitcher before serving.

Tools used to create this recipe

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What to serve with watermelon mojitos

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Enjoy!!