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    Home » Recipes » Drinks

    3 Ingredient Watermelon Banana Smoothie

    Modified: Jun 14, 2025 • Published: Jul 28, 2022 by Dr. Erin Carter • This post may contain affiliate links • Leave a Comment

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    a watermelon banana smoothie in a glass with a straw in it
    a watermelon banana smoothie in a glass with a straw
    a watermelon banana smoothie in a glass with a straw
    a watermelon banana smoothie in a glass with a straw in it

    This is the best watermelon banana smoothie recipe. This healthy smoothie is refreshing and is perfect for hot summer days. It's made with only three ingredients including watermelon, banana and milk. This smoothie is ready in just a few minutes and is so easy to make.

    A watermelon banana smoothie in a glass with a straw and a small piece of watermelon on top.

    Refreshing drinks like lemon juice and apple cider vinegar and lemonade smoothie are some of my favourite, which is why I can't wait for you to try the delicious smoothie recipe I am sharing with you today.

    Table of Contents
    • Why you will love this smoothie: 
    • Ingredients:
    • Recipe variations and add ins: 
    • How to make a watermelon banana smoothie:
    • Watermelon banana smoothie FAQs:
    • Other smoothie recipes you will love:
    • Recipe

    Why you will love this smoothie: 

    • The taste! It is so refreshing and full of fruity flavour. 
    • It's so easy to make and comes together in just a few minutes, just like air fryer bananas. Plus you only need 3 ingredients to make it.
    • This smoothie is healthy, and can easily be made dairy-free, and vegan.

    If you love refreshing drinks you will also love my Pina colada mocktail and virgin pornstar martini.

    Ingredients:

    For the full ingredient list and exact measurements refer to the recipe card later in this post.

    Jump to the Recipe Card.
    Three bowls, one with banana, one with watermelon and one with milk in it.
    • Watermelon - the riper the better!
    • Banana - use ripe, yellow bananas rather than unripe green ones. You can use either fresh or frozen ripe banana for this smoothie. 
    • Milk - I use full fat coconut milk but you can use any type of milk that you like including dairy milk, almond milk, oat milk, cashew milk, soy milk etc. 

    Recipe variations and add ins: 

    • If you want leftovers for meal prep you can double or triple this recipe.
    • For a thicker smoothie: add a few tablespoons of your favourite yogurt. Both plain and vanilla yogourt are delicious. 
    • To increase the protein content: add a scoop of vanilla protein powder.
    • To make this smoothie dairy-free: use a dairy-free milk. 
    • To make this smoothie vegan: use a dairy-free or vegan milk. 

    How to make a watermelon banana smoothie:

    A blender with chopped banana and watermelon in it.
    1. Step 1: First, add all the ingredients to your blender. 
    A blender with a pink smoothie in it.
    1. Step 2: Then blend well until smooth, and enjoy!
    A watermelon banana smoothie in a glass with a straw and a piece of watermelon on top.

    Watermelon banana smoothie FAQs:

    Is banana and watermelon a good combination?

    Banana and watermelon go really well together. The sweetness of these two fruits compliment each other well and you can combine banana and watermelon in smoothies, fruit juices or fruit salads. 

    Is this smoothie keto?

    No, this smoothie recipe is not low carb or keto.

    Is this smoothie gluten-free?

    Yes it is.

    Can I store this smoothie for later?

    Store any leftovers in a glass or jar in the fridge for up to 24 hours. 

    Can I freeze this smoothie?

    This smoothie freezes really well in an airtight container or jar for up to 3 months.

    Other smoothie recipes you will love:

    • A smoothie in a glass topped with blueberries and oats with a straw in it.
      The Best Oat Milk Smoothie
    • A clear glass with a cherry smoothie in it, topped with fresh cherries and hemp hearts with fresh cherries around the glass.
      Healthy Cherry Smoothie (high protein)
    • A glass filled with a chocolate smoothie with a glass straw in it.
      Chocolate Coffee and Banana Smoothie (healthy & high protein)
    • A glass of a key lime pie smoothie topped with a lime slice and crushed graham crackers.
      Key Lime Pie Smoothie with Yogurt (high protein)

    Since you made it this far we are basically best friends so be sure to follow me on Instagram, Pinterest, TikTok and Facebook where I share even more recipes and healthy living tips! And don’t forget to leave this recipe a star review before you go!

    Recipe

    Watermelon Banana Smoothie

    This is the best watermelon banana smoothie recipe! So easy to make with just 3 ingredients this refreshing smoothie is ready in no time.
    5 from 4 votes
    Print Pin Rate
    Course: Beverage, Drinks
    Cuisine: American
    Diet: Diabetic, Gluten Free, Vegan
    Prep Time: 5 minutes minutes
    Blend time: 1 minute minute
    Total Time: 6 minutes minutes
    Servings: 1
    Calories: 461kcal
    Author: Dr. Erin Carter

    Equipment

    • Vitamix blender

    Ingredients

    • 1 ripe banana
    • 1 1/2 cups chopped watermelon
    • 1/2 cup milk of choice
    • 1 teaspoon vanilla extract (feel free to omit this)

    Optional additions

    • 1 scoop vanilla protein powder
    • 1 tablespoon hemp hearts

    Instructions

    • Add all the ingredients to your blender.
    • Blend until smooth.
    • Serve and enjoy!

    Notes

    1. Nutritional values are an estimate and will vary depending on the exact ingredients used - the values here include the optional protein powder and hemp hearts. 
    2. If you are serving a crowd you can double or triple this recipe. 

    Nutrition

    Calories: 461kcal | Carbohydrates: 58g | Protein: 31g | Fat: 13g | Saturated Fat: 4g | Polyunsaturated Fat: 6g | Monounsaturated Fat: 2g | Cholesterol: 76mg | Sodium: 127mg | Potassium: 990mg | Fiber: 4g | Sugar: 36g | Vitamin A: 1648IU | Vitamin C: 29mg | Calcium: 347mg | Iron: 3mg
    Tried this Recipe? Pin it for Later!Mention @pureandsimpleno or tag #pureandsimpleno!

    DISCLAIMERS: The statements made on this website have not been approved by the Food and Drug Administration or Health Canada. The information is not intended to diagnose, treat, cure, or prevent disease. You assume full responsibility for how you use this information. Always consult with your physician or other health professionals before making any diet or lifestyle changes. This post may contain affiliate links whereby if you purchase these products I receive a small percentage of the sale price. This allows me to keep the blog running and I thank you for allowing me to do that!

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    A photo of Dr. Erin Carter wearing a floral dress in her kitchen.

    Hi everyone!

    My name is Dr. Erin Carter and I am so thrilled you are here. I am a physician with specialties in both internal medicine and rheumatology, and I believe that food and healthy living are forms of medicine. In my spare time I share health information and delicious, healthy recipes here on Pure and Simple Nourishment.

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