Easy Watermelon Margarita (On The Rocks)

Easy Watermelon Margarita (On The Rocks)

Watermelon margarita on the rocks is the perfect refreshing drink for a hot summer day. Sweetened with just a hint of agave. This recipe makes two servings of margaritas, but can easily be scaled up for a full pitcher.

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Summer is finally here in St. Louis. We’ve had some hot days lately! It’s time to break out those lawn chairs, grab a drink, and sit outside on the patio after a long week of work. This watermelon margarita hits the spot perfectly for that! Now, all you need is a big bowl of guacamole and some tortilla chips.

watermelon margaritas

Ingredients for Watermelon Margarita on the Rocks

We only need 4 ingredients for these watermelon margaritas, which makes them even better!

Watermelon: Make sure you grab a seedless watermelon. You’ll want to pick up a ripe watermelon from the store.

Tequila: Everyone has their own favorite tequila brand – Casamigos, Jose Don Julio, or Patrón. This recipe tastes best with a silver or blanco tequila. Just remember one things you’re purchasing tequila – make sure it says “100% blue agave” somewhere on the bottle. That’s how you know you’re getting the real deal tequila!

Lime Juice: Freshly squeezed lime juice is always best if you have access to it! If you’re feeling fancy, you can add some lime zest to the granulated sugar for your rim.

Agave: Agave nectar is a syrup that helps sweeten up the drink. Feel free to add more or less depending on your taste!

Ice Cubes (aka the rocks): Fancy ice cubes makes the watermelon margarita even more fun! Just cut limes into small wedges, add water to an ice cube tray, and freeze!

Purchase the exact items you need to recreate this delicious summer drink…

Preparing for Summer Cocktails

Now that the weather is warmer and you’re likely going to be making more cocktails, it’s time to invest in a good (affordable) bartending kit. Make sure whichever one you purchase has a few basics including a cocktail shaker, jigger, and muddler. These are my favorite 3 items for crafting fun, fresh cocktails during the summer.

Next up, you’re going to want to stock up on your liquor of choice. Of course it’s nice to have a variety of liquors to choose from (tequila, vodka, rum, etc.), but if you’re trying to stick to a budget, buy a bottle of your favorite and work with that! Many cocktails recipes can be substituted with different liquors. Give it a try and see how it turns out!

Finally, I love having lemons, limes, and fresh herbs on hand for cocktails! They make the drinks more fresh and bright. It’s just the best!

easy watermelon margaritas

Customizing Your Cocktail

The fun thing about cocktails is customizing them and making them to your liking! Here are some fun ways to change up this watermelon margarita:

  • If you’re a fan of frozen margaritas, freeze the watermelon juice in an ice cube tray. When you are ready to mix your drink, grab your frozen watermelon cubes, along with the other ingredients, and mix in a blender. If needed, add additional watermelon juice if the consistency is too thick.

  • I love making fancy ice cubes (like the ones pictured below) to spice up my margarita on the rocks. These are especially fun if you’re hosting a party or having a fancy dinner. Just cut limes into small wedges, add water, and freeze!

  • The topic of a salt or sugar rim is very controversial! I’m normally a salt girl myself, but I’ve been convinced to add a sugar rim to this watermelon margarita. Feel free to coat rim in kosher salt, or leave completely clean!

  • If you’re looking to make this drink a mocktail, just skip the tequila and replace with extra watermelon juice and a splash of sparkling water.

  • Feel free to adjust the amount of lime juice if the margarita is too tart for you. Or add a splash of lime sparkling water as a substitution!
lime ice cubes
easy watermelon margaritas

Easy Watermelon Margarita (On The Rocks)

Watermelon margarita on the rocks is the perfect refreshing drink for a hot summer day. Sweetened with just a hint of agave. This recipe makes two servings of margaritas, but can easily be scaled up for a full pitcher.
Prep Time15 mins
Total Time15 mins
Course: Drinks
Servings: 2


  • 4 cups ripe, seedless watermelon cubed (2 inch cubes)
  • 3 ounces silver tequila
  • 2 ounces lime juice
  • 2 teaspoons agave
  • granulated sugar (optional, for lining rim)


  • Add cubed watermelon to a blender. Blend on high until watermelon juice has formed and no large pieces of watermelon remain. Using a fine mesh strainer, strain the watermelon juice 1-2 times to remove the excess pulp.
  • To a cocktail shaker add 10 ounces of watermelon juice, tequila, lime, agave, and a few ice cubes. Shake for 30-45 seconds until chilled.
  • To serve, use a lime wedge to wet the rim of serving glass. Dip glass into granulated sugar. Add a few ice cubes to the glass, then strain margarita mix over ice. Serve immediately.

Did you make this recipe?!

Let me know how you liked the recipe! Comment below, or share a picture on Instagram with the hashtag #HomebodyEats. Happy cooking, Homebody family!


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