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    Home » Recipes » Drinks

    How to Make Watermelon Water (Agua de Sandia)

    Published: Aug 17, 2021 · Modified: May 18, 2022 by Emily Miller · This post may contain affiliate links · 24 Comments

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    The refreshing taste of summer, all in a glass! With its fresh and juicy watermelon flavor, this drink is perfect for hot days at the beach.

    Share this fresh Watermelon Water with friends, enjoy it with your picnic lunch, or as an afternoon pick-me-up at home.

    Jump to:
    • Is Watermelon Water healthy?
    • Ingredients
    • How to pick a ripe watermelon
    • How to cut a watermelon
    • How to make Watermelon Water
    • Substitutions
    • Variations
    • Equipment
    • Storage
    • Expert tip
    • FAQ
    • Summer Drinks
    • Recipe
    • Comments

    This recipe was inspired by my last visit to Costa Rica, where I first tried a delicious Tamarind Margarita cocktail.

    My husband and I went to this great restaurant in Costa Rica by the seaside one day, where Aguas Frescas were made fresh in front of us. My husband and I were going through all these amazing flavors, trying to decide which ones sounded best - and it was hard because there were so many good choices.

    Finally, we tried a variety that left my mouth watering for more: Agua de Sandia - it tasted like summertime! I learned that Agua Fresca means fresh water, and Agua de Sandia means watermelon water.

    I couldn't wait to recreate this hydrating and cooling drink with no added sugar at home! Every time I take a sip, I am transported back to the ocean vistas of Costa Rica with toucans and macaws flying overhead.

    Is Watermelon Water healthy?

    Unlike your favorite sports drink, homemade watermelon water has clean ingredients and no artificial colors, flavors, or artificial sweeteners.

    Watermelon has many health benefits; it contains natural electrolytes such as potassium and magnesium and is full of nutrients including lycopene, carotenoids, antioxidants, vitamin A, vitamin B6, and vitamin C.

    Because of its high water content from watermelon juice, it is low in calories. Did you know that watermelon is 92% water?

    It may have anticancer effects, and it may support heart health. Since watermelon contains lycopene, it may reduce blood pressure and help lower cholesterol.

    It also contains an amino acid called citrulline which may increase nitric oxide levels in the body, helping blood vessels expand and lowering blood pressure.

    Ingredients

    You only need a few ingredients to make this incredibly refreshing watermelon agua fresca.

    I prefer not to add sugar; I do not think it is needed with ripe and naturally sweet watermelon, although it was added to the Agua de Sandia and other Aguas Frescas I enjoyed in Costa Rica.

    • Ripe watermelon - the sweeter and riper, the better!
    • Fresh ice and cold water
    • Freshly squeezed lime juice
    • Sea salt - just a pinch of Himalayan sea salt to bring out the flavor of the watermelon.

    See the recipe card for the quantities.

    How to pick a ripe watermelon

    Watermelon is a delicious summer fruit that is in peak season from May to September. The color of your watermelon can indicate its ripeness.

    • Choose a heavy watermelon. Pick it up - it should feel heavier than it looks, which means it has high water content, indicating a sweeter watermelon.
    • Green stripes should be deep green in order to show that it has fully matured, while pale yellowish stripes should be creamy yellow.
    • Look for a watermelon that is round and evenly shaped; it's likely to be sweeter than oval watermelons, which tend to be watery and less flavorful.
    • Take a look at all the sides of the watermelon. If you see dry spots and vein-like webbing lines, you may have an extra sweet watermelon! These dry spots show where sugar has been coming out of the fruit. Steer clear of any irregular lumps.
    • Look for the field spot, which is the large, discolored spot on the surface, indicating where the watermelon was on the ground as it ripened. The color of the field spot should be creamy and yellow. If it's white or light yellow, you may want to keep looking for your ideal watermelon.

    How to cut a watermelon

    Wash the melon in cool running tap water to remove surface debris before cutting it for eating. Dry. Wash your hands thoroughly with soap and water before cutting watermelons.

    First, cut off the ends. Then stand the watermelon on its side as you remove the rind. If your watermelon is huge like ours was (thirty pounds), cut the watermelon in half before attempting to stand it on its side. Refer to this video for directions on how to cut a watermelon.

    Cut the watermelon in half once the rind is removed and place the flat side down. Now you are ready to cut the watermelon into slices, and then cut each slice into 1-inch to 2-inch cubes.

    Kitchenaid blender filled with cut watermelon chunks on a white platter

    How to make Watermelon Water

    • Place the watermelon chunks into a high-speed blender. The blender pictured is 48 oz; I filled it with approximately 5 cups of chopped watermelon.
    • Add cold plain water, fresh ice, fresh lime juice, and a small pinch of sea salt.
    • Cover the blender securely. Start the high-speed blender at low speed and gradually increase to high speed. Blend for at least 30 seconds.
    • Pour into glasses and enjoy it right away! I love the froth at the top of the glasses; it is extra refreshing to me.
    • Hint: Find the ripest watermelon you can find, and be sure to include the seeds in this Watermelon Water!

    Substitutions

    If you don't have watermelon, you can try this recipe with cantaloupe or honeydew melon, or another variety of sweet melon. You can also try it with other juicy or watery fruit like pineapple, cucumber, or a mixture. You may need to add more water. Let me know what you try!

    Variations

    Here are some tasty ways to vary the recipe:

    • Lime juice - Instead of adding lime juice, try lemon juice, or skip it altogether.
    • Spicy - Add half a serrano pepper or half a jalapeño pepper. I'll leave it to you whether you want to add the seeds or not!
    • Deluxe - Add a sprig of mint or mint leaves when blending the watermelon, and garnish your watermelon water with fresh mint or lime wedges. Or try sparkling water. For super deluxe, try my favorite, coconut water! Garnish with a slice of lime.
    • Adult version - Add a splash of gin, rum, or vodka for a cocktail.
    • Kid-friendly - This recipe is already kid-friendly, but for a fun summertime treat, turn this recipe into popsicles. Add half the amount of water and skip the ice. For popsicle-making instructions, refer to my Creamy Coconut Popsicles.
    • Freeze - Make frozen watermelon water by blending frozen watermelon cubes with water.

    Equipment

    A high-speed blender works well for this, although a regular blender will work fine. I love my blender; I've had it for over ten years.

    If you don't have a blender, you can use a food processor.

    Storage

    Store the Watermelon Water in the refrigerator immediately in a tightly sealed container for up to 3 days.

    I use a 6-quart container for storing leftover cut watermelon in the fridge. You can tightly wrap the cut side of the watermelon with plastic wrap and place it in the fridge with the plastic wrap facing up. The plastic wrap prevents the surface of the melon from getting mushy.

    Expert tip

    Pick the ripest and sweetest watermelon you can find. Then get ready to enjoy this low-calorie, naturally sweet, healthy, and hydrating drink full of antioxidants and phytonutrients.

    FAQ

    Do I need to seed the watermelon?

    No, you do not need to do this. However, would you please not waste your time taking seeds out of a watermelon? It's beneficial to eat the seeds since they contain magnesium, zinc, and monounsaturated and polyunsaturated fatty acids, which protect against heart attack and stroke. The blender pulverizes the seeds, and if any remain, they will be at the bottom of the container.

    Do I need to strain the watermelon water?

    No, you don't need to strain it. It's beneficial to enjoy the pulp and the fiber in this drink. However, if you prefer, you can strain it.

    Can I eat the rind?

    Yes, if your watermelon is organic. I would add some chopped rind to the mixture to be blended. You can remove the green outer skin of the rind and use the rind as you would use squash in a stir fry, a curry, or soup.

    How do I store leftover watermelon?

    It's best if you cut the watermelon immediately before eating it. You can store any cut watermelon in the fridge, well wrapped, for up to three days. I put mine in a large covered bucket with a lid. Any large container will work as long as it is leak-proof and airtight.

    What if my watermelon water is too thick?

    Blend it with a little more water until you achieve your desired consistency. I like mine with the pulp and with ground seeds since it contains healthy natural plant fiber and vitamins and minerals. If you don't want the pulp and ground seeds, you can strain the mixture.

    Can I freeze watermelon?

    Yes! After you cut the watermelon into chunks, place them one by one on a sheet pan and put them in the freezer. Once they're frozen, make a frozen drink by blending the watermelon cubes with water. Place the leftover watermelon in a freezer-proof plastic bag or glass container.

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    There's nothing like a juicy and sweet, delicious watermelon on a hot summer day to keep you hydrated with antioxidant goodness. If you love watermelon, you are going to love Watermelon Water!

    If you make this recipe, please take a moment to ★★★★★ star-rate it and leave a comment below. Follow me on Instagram and Facebook, and share your creation with me! Tag me @resplendentkitchen and hashtag #resplendentkitchenrecipes.

    Recipe

    Side view of two glasses of watermelon coolers with pitcher on a white round plate

    How to Make Watermelon Water (Agua de Sandia)

    Emily Miller
    Enjoy this healthy and refreshing Watermelon Water all summer long. Blend chopped watermelon with water, ice, freshly squeezed lime, and a pinch of salt for a thirst-quenching beverage!
    5 from 132 votes
    Print Recipe Pin Recipe
    Prep Time 10 minutes mins
    Cook Time 0 minutes mins
    0 minutes mins
    Total Time 10 minutes mins
    Course Drinks
    Cuisine American
    Servings 5 servings
    Calories 45.1 kcal

    Equipment

    • High-speed blender
    • Cutting board
    • Chef's knife

    Ingredients
      

    • 5 cups chopped watermelon including seeds including seeds, approximately 725 g
    • 1 cup cold water or coconut water or sparkling water
    • 1 cup ice cubes
    • ½ lime freshly juiced
    • Pinch Sea salt

    Instructions
     

    • Place chopped watermelon into high-speed blender. Add water, ice, lime juice, and pinch of sea salt.
      5 cups chopped watermelon including seeds, 1 cup cold water, 1 cup ice cubes, ½ lime, Pinch Sea salt
    • Start high-speed blender at low speed and gradually increase to high speed. Mix for 30 seconds.
    • Pour into glasses and enjoy!

    Notes

    Refrigerate any remaining watermelon water for up to 3 days. Shake before serving.
     

    Nutrition

    Serving: 1cupCalories: 45.1kcalCarbohydrates: 11.4gProtein: 0.9gFat: 0.2gSodium: 17.8mgFiber: 0.6gSugar: 9.2g
    Keyword agua de sandia, agua fresca, fruit, summer, watermelon water
    Tried this recipe?Let us know how it was!

    Resplendent Kitchen offers nutritional information for recipes contained on this site as a courtesy. Although resplendentkitchen.com attempts to provide accurate nutritional information from online calculators, these figures are estimates.

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      Recipe Rating




    1. Kayla

      August 19, 2021 at 11:27 am

      5 stars
      Loving how fresh this is! It is so delicious and the perfect Summer drink!

      Reply
      • Emily

        August 19, 2021 at 2:24 pm

        Thank you for your review Kayla! I'm so glad to hear how much you enjoyed this summery drink!

        Reply
    2. Julia

      August 19, 2021 at 12:05 pm

      5 stars
      I was desperate to try this... went and bought a watermelon... came back ... followed your instructions and we sat out in the sunshine and enjoyed it. Delicious and so refreshing. Thank you.

      Reply
      • Emily

        August 19, 2021 at 2:25 pm

        Hi Julia, thank you for your review! I'm so glad the blog post was helpful and that it led to such a delicious experience. I hope you enjoy this seasonal fruit throughout the summer months!

        Reply
    3. Lucy

      August 19, 2021 at 12:40 pm

      5 stars
      This is the perfect summertime drink. So cooling, refreshing and hydrating. This is my go to drink! Thank you 🙂

      Reply
      • Emily

        August 19, 2021 at 2:27 pm

        Hi Lucy, thanks for your review! I'm really glad you enjoyed this Watermelon Water and that it's become your go-to drink!

        Reply
    4. Chris

      August 19, 2021 at 12:43 pm

      5 stars
      This watermelon water is so refreshing, easy to make, and perfect for hot summer days! Thanks for an amazing recipe!

      Reply
      • Emily

        August 19, 2021 at 2:29 pm

        Chris, thank you for your review! I'm so happy to hear that you enjoyed the watermelon water recipe. It's great to know that we're not alone in enjoying this refreshing drink!

        Reply
    5. Marinela

      August 19, 2021 at 4:10 pm

      5 stars
      This refreshing watermelon water is the ultimate drink to sip on hot summer days, a tasty summertime treat, yum!

      Reply
      • Emily

        August 19, 2021 at 7:48 pm

        Thank you for your review, Marinela! I'm glad to hear that you enjoyed this refreshing watermelon drink!

        Reply
    6. Anaiah

      August 19, 2021 at 4:31 pm

      5 stars
      Perfection in a glass! I made my watermelon water with mint like you suggested and it made it even more refreshing. Definitely gotta try the spicy version next time!

      Reply
      • Emily

        August 19, 2021 at 8:19 pm

        I'm so glad you enjoyed the watermelon water, Anaiah! I love hearing about the different ways it's enjoyed, let me know what you think of the spicy version!

        Reply
    7. Choclette

      August 20, 2021 at 12:55 am

      5 stars
      Really looking forward to trying this. It looks gorgeous and sounds so refreshing. Task for the weekend is to track down some watermelon.

      Reply
      • Emily

        August 20, 2021 at 9:38 am

        Thanks for the review, Choclette! I'm so glad to hear you're looking forward to trying this new recipe. I hope you find a nice watermelon! We've been getting ours at a local Mexican grocery store.

        Reply
    8. Emily

      October 28, 2021 at 10:22 am

      Thank you, Douglas, I'm glad you found this post helpful!

      Reply
    9. Emily

      October 31, 2021 at 10:26 pm

      Thank you, Kelly, I am glad you found the post helpful!

      Reply
    10. Jacqui

      April 17, 2022 at 11:47 am

      5 stars
      This watermelon water recipe is so refreshing! Can highly recommend!

      Reply
      • Emily

        April 17, 2022 at 12:43 pm

        Thank you for your feedback, Jacqui! I'm so glad to hear that you enjoyed this recipe and would recommend it.

        Reply
    11. Lisa

      April 17, 2022 at 3:34 pm

      5 stars
      We are on vacation right now and just made this to drink while hanging out by the pool. Everyone loved it! We are going to try it with honeydew tomorrow. Great recipe.

      Reply
      • Emily

        April 17, 2022 at 5:02 pm

        Hi Lisa, thanks so much for the feedback! I'm glad you enjoyed it and are considering experimenting with honeydew!

        Reply
    12. Nancy

      April 18, 2022 at 2:16 pm

      5 stars
      Watermelon water is super tasty and so refreshing! I can see us making this more and more as the weather improves.

      Reply
      • Emily

        April 18, 2022 at 2:57 pm

        Thank you for your review, Nancy, I'm so glad to hear that you enjoyed the watermelon water recipe! We love this drink too and it's a great way to stay hydrated.

        Reply
    13. Aretha

      September 27, 2022 at 1:46 am

      5 stars
      Outstanding!

      Reply
      • Emily

        September 27, 2022 at 1:03 pm

        Thank you, Aretha!

        Reply

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    Hi, I'm Emily, the photographer, writer, and cook behind Resplendent Kitchen, a 100% plant-based blog - where making vegan dishes that are good for you can also be incredibly tasty.

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