Summertime just got more delicious with this simple Watermelon Banana Smoothie recipe that can be served as a refreshing snack. Watermelon is naturally sweet and hydrating, and perfect for a cold and naturally sweet smoothie! This delicious drink is made dairy-free and vegan.

watermelon banana smoothie in a glass with a plate of fresh fruit.

If you love the flavor of watermelon, then you are going to go crazy for this smoothie. You only need four basic healthy ingredients, plus ice.

This is my favorite way to use up extra watermelon, especially on a hot day. It’s a healthy mid-day snack without any added sugar. Plus, it’s high in Vitamin C and satisfies a sweet tooth.

Save this Watermelon Banana Smoothie recipe for the next time you’re craving a refreshing drink. I’ve also included a secret tip for making this an adult summer drink (just in case….wink, wink)!

Why You Need This Recipe

  • This Watermelon Banana Smoothie is made dairy-free, gluten-free, and vegan. This way, everyone can enjoy this healthy snack that is a fun way to use this seasonal fruit.
  • You only need a few real food simple ingredients that are nutritious and easy to find.
  • No need for added sugars here! Sweet seasonal fruit adds plenty of natural sugars and sweetness.

Key Ingredients

ingredients with labels for watermelon banana smoothie.
  • Watermelon makes the base of this smoothie. Try to find a seedless and ripe watermelon if you can.
  • Frozen banana and frozen pineapple add thickness and balance the flavor of the watermelon. Be sure to freeze a ripe banana for this banana watermelon smoothie.
  • Milk adds creaminess to this yummy summer smoothie. I used unsweetened almond milk but you can use whatever type of milk you like (use a plant-based version to keep the recipe dairy-free and vegan). You could also use vanilla yogurt (dairy-based or dairy-free) if you want your smoothie to have a creamy texture. Or, try using coconut water instead as a great way to transform this into an electrolyte smoothie.

See the recipe card below for the exact ingredients and measurements of this delicious smoothie.

Recipe Substitutes

  • Use a seedless watermelon to avoid the bitter black seeds.
  • Fresh mint leaves are good in this smoothie too, but it will alter the color.
  • If you want to make this smoothie as a meal replacement, you can add a scoop or two of an unsweetened clean protein powder. You can also add chia seeds to add more healthy fats to this easy smoothie recipe.
  • For an adult beverage, add a shot of vodka to the blender. See my recipe for a Watermelon Vodka Cocktail.

Recipe Steps

Let me show you how easy it is to make this healthy smoothie recipe perfect for a hot summer day.

process photos for how to make this watermelon banana smoothie.

Step One

Making this watermelon smoothie recipe is just about as easy as it gets.

It’s ideal to use a high-speed blender like a Vitamix, but you can also use a regular blender.

To start, add the milk and chilled watermelon chunks to the base of your blender.

Step Two

Then, add the frozen banana and frozen pineapple.

Step Three

Add ice cubes to help thicken the smoothie.

Step Four

Bland and serve immediately.

This delicious watermelon smoothie should be served cold as soon as you’re done blending it.

I hope you agree that this smoothie is perfect with the watermelon flavor and natural sweetness.

picture pouring pink watermelon banana smoothie into glass.

Recipe Tips

  • If you prefer a thicker smoothie, feel free to add up to a cup of ice cubes.
  • Store any leftovers in an airtight container for up to 2 days. Or, freeze any extras in an ice cube tray.

Recipe FAQs

Can I use frozen watermelon chunks instead of fresh watermelon?

Yes, but you may need to add a little bit of water to help the ingredients blend.

What is my watermelon isn’t sweet?

It is a good idea to test your watermelon before making this drink. As long as your watermelon is average or above average on the sweetness scale, your smoothie will turn out awesome. If your watermelon isn’t sweet, you may need to add a teaspoon or two of honey (vegans can use maple syrup).

Can I blend the watermelon seeds?

It is best to use seedless watermelon for this recipe. The white seeds are okay, but try to avoid using watermelon with a lot of black seeds as they will make your smoothie bitter.

two glasses of watermelon smoothie with pineapple on edge.

More Healthy Recipes You Might Like During Summer

Or, you can see my entire index of healthy smoothie recipes.

Don’t Miss These Watermelon Recipes!

Watermelon Beet Salad

Dehydrated Watermelon Recipe

Watermelon Vodka Cocktail (No Added Sugar)

Watermelon Mint Juice

I hope you make this recipe! If you do, please leave a comment and a starred review below.

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watermelon banana smoothie in glass

Watermelon Banana Smoothie (Vegan & Dairy-Free)

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4.8 from 6 reviews

Print Recipe

Summertime just got more delicious with this simple Watermelon Banana Smoothie that can be served as a refreshing snack. Watermelon is naturally sweet and hydrating, and perfect for a cold and naturally sweet smoothie!

  • Total Time: 16 minutes
  • Yield: 2 1x

Ingredients

Units Scale
  • 1 cup unsweetened almond milk
  • 2 cups seedless watermelon chunks, chilled
  • 1 frozen banana, broken in half
  • 1/2 cup frozen pineapple niblets or chunks
  • 1/2 cup ice

Instructions

  1. In the base of a high-speed blender, combine the almond milk, watermelon chunks, banana, pineapple, and ice.
  2. Blend on high for about 30 seconds, or until the smoothie is fully blended.
  3. Serve immediately.

Notes

  1. If you aren’t on a dairy-free diet, you can replace the almond milk with regular milk or vanilla yogurt.
  2. This recipe is easily doubled or tripled.
  3. To make this smoothie a meal replacement, feel free to add a scoop of protein powder and a tablespoon of chia seeds per serving.
  4. If you prefer a thicker smoothie, feel free to add up to a cup of ice cubes.
  5. Use a seedless watermelon to avoid the bitter black seeds.
  6. Fresh mint is good in this smoothie too, but it will alter the color.
  7. For an adult beverage, add a shot of vodka to the blender.

Nutrition

  • Serving Size: 1/2 of recipe
  • Calories: 139
  • Sugar: 20.8 g
  • Sodium: 100.3 mg
  • Fat: 1.9 g
  • Saturated Fat: 0.1 g
  • Carbohydrates: 31.3 g
  • Fiber: 2.7 g
  • Protein: 2.6 g
  • Cholesterol: 0 mg

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About the Author: Carrie Forrest has a master’s degree in public health with a specialty in nutrition and is a certified holistic nutritionist. She is a top wellness and food blogger with over 5 million annual visitors to her site. Carrie has an incredible story of recovery from chronic illness and is passionate about helping other women transform their health. Send her a message through her contact form.