Get ready to crochet your new favorite summer layer! The Beach Day Swim Suit Cover Up Crochet Pattern is light, breezy, and perfect for throwing on over your swimsuit for a day at the beach or by the pool. Made from simple granny hexagons, this project combines vintage charm with modern style—and it’s easier than it looks!
With a relaxed fit, playful fringe, and optional drawstring, this cover up is as fun to wear as it is to make. Whether you’re lounging in the sun or chasing waves, you’ll feel confident and handmade-chic.
Even better? There’s a kids version available too—so you can create a matching mommy and me set for the ultimate summer vibes!
Choosing Your Yarn
For this cover up I used Caron Cotton Cakes (250g). Caron Cotton Cakes is a great choice for this project because it’s a soft, durable cotton-blend yarn that’s perfect for warm weather wearables. With its lightweight feel and excellent stitch definition, it really makes those granny hexagons pop! Plus, the generous yardage and self-striping colorways add fun visual interest without having to change colors—perfect for a playful, summer-ready cover up! Any worsted weight cotton yarn would work great for this project.
The Granny Hexagon
The granny hexagon is the perfect foundation for this project—it’s simple, versatile, and adds a fun geometric twist to a classic summer staple. Its shape naturally creates the angles needed for sleeves and shaping, making it easy to build a wearable garment without complex construction. Plus, it’s beginner-friendly and super satisfying to make, especially when you start seeing the pieces come together into a cute and comfy cover up!
Mommy & Me Project
This pattern is part of a sweet mommy and me set, with a matching adult version available too! Whether you’re twinning at the beach or just creating coordinating summer looks, it’s a fun way to make something special for both you and your little one. Customize the colors, add fringe, and make it your own—because handmade is always better together! Get the kid’s version >HERE<.
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Beach Day Swim Suit Cover Up Crochet Pattern
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Materials
250g Caron Cotton Cakes (3 for S/M, 4 for L/XL & 2X/3X, 5 for 4X/5X)
I/5.5 mm hook
Yarn needle
Scissors
stitch markers
Level
intermediate
Pattern notes & stitches to know
ch – chain
sl st – slip stitch
dc – double crochet
sc – single crochet
sc2tog – single crochet 2 together
· written in US terms
· ch 2 counts as dc
· The hexagon will end up wavy. It will not lay flat.
· Gauge: Hexagon with 4 rounds = approx 4.5″ each side
Sizes:
(S/M, L/XL, 2X/3X, 4X/5X) – The pattern is written in these sizes consecutively.
Approx Finished Size—
Bust: S/M (40″) L/XL (48″) 2X/3X (56″) 4X/5X (64″)
Length: S/M (30″) L/XL (32″) 2X/3X (34″) 4X/5X (36″)
Sleeve: S/M (21″) L/XL (25″) 2X/3X (29″) 4X/5X (33″)
BEACH DAY SWIM SUIT COVER UP CROCHET PATERN
ch 4
Round 1: ch 2, 2 dc, ch 2, *3dc, ch 2* repeat from * to * 4 more times, join to first ch 2 with sl st (18 dc)
Round 2: sl st to ch-2, ch 2, (2 dc, ch 2, 3 dc) in ch-2space, (3 dc, ch 2, 3 dc) in each ch-2 space around, join to first ch 2 with sl st (26 dc)
Round 3: sl st to ch-2, ch 2, (2 dc, ch 2, 3 dc) in ch-2 space, 3 dc in between 3 dc’s from previous round, *(3 dc, ch 2, 3 dc) in ch-2 space, 3 dc in between 3 dc’s from previous round* repeat from * to * around, join to first ch 2 with sl st (54 dc)
Round 4: sl st to ch-2, ch 2, (2 dc, ch 2, 3 dc) in ch-2 space, 3 dc in between each 3 dc’s from previous round, *(3 dc, ch 2, 3 dc) in ch-2 space, 3 dc in between each 3 dc’s from previous round* repeat from * to * around, join to first ch 2 with sl st (72 dc)
Round 5 – Round (21, 25, 29, 33): repeat round 4 – each round will increase by 18 stitches
Or until desired size is reached.
To check sizing: fold one corner to the opposite to make an “L” shape. Measure from the corner to the edge. This is about 1/4 of the total bust measurement.
Hexagon measured from center to edge: (10”, 12”, 14”, 16”)
Fasten off. Leave a long end for sewing.
Repeat hexagon pattern for Part 2.
SEWING
Fold both hexagons into an “L” shape. Place them together so they make a sweater shape.
Using the long end, sew across the shoulders with a whip stitch.
Sew both hexagons together up the center for the back.
Turn the piece over. Sew the center, about halfway up, for the neckline.
Weave in the ends.
SKIRT
Join yarn to a space along the bottom of the top.
Round 1: ch 2, 2 dc in same space, 3 dc in between each 3 dc’s from previous round, join to ch 2 with sl st
Round 2: ch 2, 3 dc in between each 3 dc group around, 3 dc in last space before ch 2, join to ch 2 with sl st
Round 3: ch 2, 3 dc in first space after ch 2, 3 dc in between each 3 dc group around, join to first ch 2 with sl st
Repeat rounds 2 & 3 to Round (19, 20, 21, 22) or until desired length
Fasten off. Weave in the ends.
SLEEVE CUFFS (optional)
Join yarn to a dc along bottom of the sleeve
Round 1: ch 1, sc in each dc around to shoulder seam, 1 sc in ch-2 space, 1 sc in the center of the seam, 1 sc in ch-2 space , sc in each remaining dc around, joint to first sc with sl st
Round 2: ch 1, *sc, sc2tog* repeat from * to * around, join to first sc with sl st
Round 3: ch 1, sc in each stitch around, join to first sc with sl st
Fasten off. Weave in the ends.
Repeat other sleeve.
TWISTED FRINGE (optional)
Join yarn to a dc along the bottom of the skirt, ch 1.
*sl st in dc, and continue to pull the yarn until the loop is approx. the length of a crochet hook (about 6”).
Twist the 6” loop towards you 20 times.
Fold twisted loop in half, sl st to the same stitch*
Repeat from * to * in each dc around the bottom.
Fasten off, weave in the ends.
DRAWSTING (optional)
ch 3
Row 1: insert hook into 2nd ch from hook and pull up a loop, insert hook into last ch and pull up a loop (3 loops on hook)
Row 2: secure the bottom of the loops with thumb and middle finger of left hand (or right hand if left handed), remove the two leftmost loops off the hook (or rightmost if lefthanded) -do not let them go- , you have 1 loop on the hook, ch 1, insert hook into middle loop, ch 1, insert hook into last loop, ch 1
Repeat row 2 until drawstring is 2X the waist measurement.
Fasten off. Weave in the ends.
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