Watermelon Mojito Recipe – The Perfect Summer Cocktail!

This watermelon mojito recipe combines sweet watermelon, fresh mint, and lots of lime, making it the perfect cocktail for summer!

When I was a kid, I never really understood why my parents and the other adults in my life loved summer so much. I mean, I loved summer because there was no school (clearly the best thing ever!) But why did they like it, when they still had to go to work?

And now that I’m an adult, I think I know. Alcohol.

Because at no other time during the year would it be appropriate to be drinking a fruity, ice-y, tropical, or creamy alcoholic concoction on a random Tuesday night! You don’t even need the “it’s 5 o’clock somewhere” excuse. You can just say “it’s 1000 degrees today,” and you’re good to go!

So in honor of summer, today I’m sharing one of my absolute favorite cocktails, a watermelon mojito. This cocktail is a riff on one I had at a restaurant. I loved it so much I came home and tried to re-create it. It is summer in a glass.



watermelon mojito cocktail recipe gold rimmed glasses topped with watermelon slices

It’s got watermelon, the most summery of summer fruits. Tons of fresh mint (that’s the mojito part). And a lot of fresh lime juice to brighten it up. It’s perfectly delicious on a hot summer night, something I’ve been experiencing lately as we’re in the middle of more than a week of 100 degree days.

In fact, that gives me an excuse to make these again tonight, right? πŸ˜‰

And just to make it extra yummy, I used my favorite monogram glasses! Mine are sold out, but I found these which are very similar as well as a few others below. 


watermelon mojito cocktail with watermelon, rum, mint and limes on cutting board


watermelon on counter for watermelon mojito recipe

It’s confession time though, and for someone who loves summer, it’s surprising. I hate watermelon. I mean, I really don’t like it. Don’t ever eat it. Even in summer. But I do drink it.

I hate cucumbers, too, but those are also good in cocktails (Apparently, I’ll eat anything when combined with alcohol, lol!)


watermelon mojito cocktail contains watermelon limes and mint in mortar and pestle

I used a mortar and pestle to muddle the mint. If you don’t already have this work horse in your kitchen, you definitely need it! It’s perfect for making this cocktail, of course, but it’s also great for crushing peppercorns or spices, as well. 


watermelon mojito cocktail gold rimmed glass topped with watermelon and mint

One piece of equipment you do need is either a food processor or a blender. You want to make sure the watermelon is thoroughly pulverized so it creates a smooth drink.


watermelon mojito cocktail recipe gold rimmed glasses with mint white kitchen


Yield: 5-6 cocktails

Watermelon Mojitos

Watermelon Mojitos

This watermelon mojito is the perfect summer cocktail! Full of watermelon, with a bright kick from the mint, it's literally summer-in-a-glass!

Prep Time 5 minutes
Total Time 5 minutes


  • roughly 10 sprigs of fresh mint, 30-40 leaves
  • 6 large slices of watermelon
  • 9 ounces of rum
  • 1/2 cup simple syrup*
  • juice of 3 limes
  • watermelon spears and sprigs of mint for garnishing


1. Chop the watermelon into large chunks, and remove any large seeds and the rind.

2. Puree the fruit in a food processor until smooth.

3. Use a mortar and pestle to mash your mint leaves.

4. Combine the mashed mint, rum, simple syrup, 2 cups of the pureed watermelon, and the lime juice and stir to combine.

5. Fill glasses with ice cubes and pour mojito mixture over. Garnish with a sprig of mint and a spear of watermelon in each glass. Enjoy!

*To make simple syrup, put equal parts sugar and water into a small saucepan and boil until the sugar dissolves (I usually do one cup of each so that I have some leftover). Cool before using.


Simple syrup stays fresh in the refrigerator for one month and it's great for cocktails, iced tea, smoothies, and other summer drinks.


I hope you’ll try my watermelon mojito recipe – and let me know what you think!

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Happy Summer!


Watermelon Mojito cocktail graphic on Maison de Cinq




And be sure to visit my friends and get some more ideas for fun cocktails and summer drinks below!


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  1. How many servings does this make? Trying to plan. Thank you!

    1. Hi Amy! This makes 5-6 cocktails depending on the size of your glasses (it’s on the recipe -top left). Hope that helps!


      1. Thank you! Sorry I missed that detail πŸ™‚

    1. haha, I’m glad you enjoyed it!

      Thanks so much for stopping by:)


    1. Aren’t they SO good?!! Perfect for summer! Thanks so much Shirley, and happy weekend to you:)


  2. Hahaha omg Sheila you’re so right!! This is why we adults love summer! This sounds soo yum, I love watermelon in drinks too!

    1. Haha! I know – so true, right?! Glad you liked it Merichelle!

      Happy Summer to you!


  3. Watermelon with anything sounds so yummy!its my favorite!i can’t wait to try these!

    1. If it’s your favorite, you are going to love these Kirsten!

      So fun hopping with you:)


  4. Oh you make that watermelon look SO good! I can’t wait to try this! Thanks for sharing and joining me on this fun summer hop!

    1. Thank you Kelly! So happy I got to be a part of it!


  5. These are so pretty and sound delicious! I love mojitos & watermelon!

    1. They definitely are! So if you love watermelon, you’re sure to love these:)

      Thanks for stopping by Desiree!


  6. debra@5th and State says:

    love this Sheila! just in time for the weekend

    1. Yay! Thanks Debra – hope you’ll try it!