I can’t think of a better summer sip than this watermelon agua fresca, sweet, light, and ice-cold. One glass of agua de sandía and the heat doesn’t stand a chance.

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I’m obsessed with watermelon agua fresca the second summer starts acting rude. It’s icy, juicy, sweet in that clean, fresh way, and ridiculously easy to love.

I first had agua de sandía in Mexico, and now I crave it whenever the heat gets loud and my brain wants something cold right now. Fresh watermelon and lime juice do all the heavy lifting here, giving me that bright, slushy, drink-it-too-fast kind of refreshment.

And honestly, it tastes like summer without trying too hard. No sticky soda vibes.

No heavy smoothie situation. Just a chilled glass of pure watermelon relief.

So good.

Ingredients

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Seedless watermelon is the whole vibe here, juicy, sweet, and super refreshing.
Cold water keeps it light, so it’s not just blended fruit juice.
Sugar smooths out any bland melon moments, but you’re still in control.
Simple syrup blends in faster if you don’t want gritty sugar bits.
Fresh lime juice makes everything pop and keeps the drink from tasting flat.
A tiny pinch of salt sounds weird, but it wakes up the sweetness.
Ice cubes make it extra cold, which is basically the whole point.
Fresh mint looks pretty and adds that cool backyard-summer kind of smell.
Plus, this drink feels fun without being heavy or too sweet.

Ingredient Quantities

6 cups seedless watermelon, cubed (about 1.8 pounds or 800 grams)

2 cups cold water (480 ml)

2 to 3 tablespoons granulated sugar, to taste (or 1/4 cup simple syrup)

2 tablespoons fresh lime juice (juice of about 1 lime)

Pinch of fine salt

Ice cubes, for serving

Fresh mint sprigs, for garnish (optional)

How to Make this

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1. Place 6 cups cubed seedless watermelon and 2 cups cold water in a blender.

2. Blend on high until completely smooth, about 30 to 60 seconds.

3. Pour the purée through a fine-mesh sieve into a pitcher, pressing with a spoon to extract as much liquid as possible; discard solids.

4. Stir in 2 to 3 tablespoons granulated sugar to taste or 1/4 cup simple syrup if using, until dissolved.

5. Add 2 tablespoons fresh lime juice and a pinch of fine salt, stir to combine.

6. Taste and adjust sweetness or lime as needed.

7. Chill the agua fresca in the refrigerator for at least 30 minutes or serve immediately over ice cubes.

8. Garnish each glass with a fresh mint sprig if desired and serve cold.

Equipment Needed

1. Blender
2. Fine mesh sieve
3. Large pitcher
4. Large spoon or rubber spatula
5. Sharp chef knife
6. Cutting board
7. Measuring cups and measuring spoons
8. Ice tray or ice bucket
9. Serving glasses and mint sprigs for garnish

FAQ

Can I make this ahead of time? Yes. Make and strain the agua fresca up to 24 hours ahead and keep it covered in the refrigerator. Stir or shake before serving as it may settle.

Do I have to strain the blended watermelon? No. Straining creates a smoother drink, but if you prefer a thicker, pulpy texture skip the sieve and serve as is.

How do I sweeten it without granulated sugar? Use 1/4 cup simple syrup, honey, agave syrup, or a few drops of liquid stevia. Add gradually and taste as you go.

Can I use frozen watermelon? Yes. Frozen cubes work well and make the drink extra cold and slushy. Reduce added ice when serving.

How long will leftovers keep? Stored in a sealed container in the refrigerator it will keep 24 to 48 hours, but freshness and flavor are best within the first day.

Can I add other flavors? Absolutely. Try a handful of strawberries or a few basil leaves in the blender for a flavor twist.

What is the ratio of watermelon to water? This recipe uses about 6 cups watermelon to 2 cups water for a bright, fruity intensity. Add more water if you want a lighter, more diluted drink.

Watermelon Agua Fresca Recipe Substitutions and Variations

Watermelon: cantaloupe or honeydew cubes; ripe strawberries or mixed berries; peeled, diced pineapple for a tangier version
Cold water: chilled sparkling water for fizz; coconut water for a hint of sweetness and electrolytes; cold green tea for subtle herbal notes
Granulated sugar: honey or agave syrup, use slightly less by volume; simple syrup in equal measure for easy dissolving; liquid stevia to taste for a calorie free option
Fresh lime juice: fresh lemon juice for similar acidity; fresh orange juice for a sweeter, fruitier profile; a splash of white wine vinegar or apple cider vinegar in very small amount for bright acidity

Pro Tips

1. Use very ripe, fragrant watermelon for the sweetest flavor; if it smells bland, add a touch more lime or simple syrup rather than masking it with too much sugar.

2. When sieving, press gently to leave a little texture if you like a silkier mouthfeel skip pressing as hard; a bit of pulp adds character and keeps the drink feeling fresh.

3. Chill the blender jar and water beforehand or blend with a few ice cubes to preserve bright flavor and reduce dilution when serving over ice.

4. Balance the sweetness with salt and lime gradually; a tiny pinch of salt lifts the fruitiness without making the drink taste salty.

5. Make a pitcher ahead and keep it cold up to 48 hours in the fridge, stirring before serving. Leftover agua fresca also freezes well into cubes for future use in smoothies or cold drinks.

Watermelon Agua Fresca Recipe

Recipe by Dan Coroni

0.0 from 0 votes

I can’t think of a better summer sip than this watermelon agua fresca, sweet, light, and ice-cold. One glass of agua de sandía and the heat doesn’t stand a chance.

Servings

servings

Calories

kcal

Equipment: 1. Blender
2. Fine mesh sieve
3. Large pitcher
4. Large spoon or rubber spatula
5. Sharp chef knife
6. Cutting board
7. Measuring cups and measuring spoons
8. Ice tray or ice bucket
9. Serving glasses and mint sprigs for garnish

Ingredients

6 cups seedless watermelon, cubed (about 1.8 pounds or 800 grams)
2 cups cold water (480 ml)
2 to 3 tablespoons granulated sugar, to taste (or 1/4 cup simple syrup)
2 tablespoons fresh lime juice (juice of about 1 lime)
Pinch of fine salt
Ice cubes, for serving
Fresh mint sprigs, for garnish (optional)

Directions

Place 6 cups cubed seedless watermelon and 2 cups cold water in a blender.
Blend on high until completely smooth, about 30 to 60 seconds.
Pour the purée through a fine-mesh sieve into a pitcher, pressing with a spoon to extract as much liquid as possible; discard solids.
Stir in 2 to 3 tablespoons granulated sugar to taste or 1/4 cup simple syrup if using, until dissolved.

Add 2 tablespoons fresh lime juice and a pinch of fine salt, stir to combine.
Taste and adjust sweetness or lime as needed.
Chill the agua fresca in the refrigerator for at least 30 minutes or serve immediately over ice cubes.
Garnish each glass with a fresh mint sprig if desired and serve cold.

Notes

Below you’ll find my best estimate of this recipe’s nutrition facts. Treat the numbers as a guide rather than a rule—great food should nourish both body and spirit. Figures are approximate, and the website owner assumes no liability for any inaccuracies in this recipe.