December Tide Knit Pillow: Free Knitting Pattern

There is something about December that makes you want to cocoon yourself in the softest, most beautiful things you own. The light changes, the air sharpens, and suddenly every corner of your home deserves a little more warmth and intention. That is exactly why I designed the December Tide knit pillow — a textured, cozy, and surprisingly quick project that brings coastal calm into the heart of winter. Whether you are curling up by a fireplace or dreaming of a snow-dusted shoreline, this pillow captures the quiet rhythm of winter waves in every stitch.

This free knitting pattern is written for intermediate knitters but includes enough notes and tips that confident beginners can absolutely give it a go. The finished pillow works up beautifully in a chunky or bulky weight yarn and features a mix of knit and purl stitches arranged in a wave-like ripple pattern that mimics the pull of tides along a cold December shore. It is the kind of project that looks impressively intricate but knits up faster than you would expect.

Let me walk you through everything — yarn recommendations, materials, gauge, pattern notes, the full stitch-by-stitch instructions, and finishing details. By the end, you will have a pillow that looks like it belongs in a high-end coastal shop but cost you almost nothing beyond your time and yarn.

Why You Will Love This Pattern

Before we dive into the actual knitting, let me tell you what makes the December Tide knit pillow special. The design centers on a textured wave stitch that creates a three-dimensional ridge across the pillow face. These ridges catch the light in a way that flat stockinette simply cannot, giving the finished piece a sculptural quality that photographs beautifully and feels even better in person.

The construction is straightforward: you knit a front panel with the textured wave pattern, then knit a simpler back panel, and seam them together around a pillow insert. There are no complicated cables, no colorwork, and no techniques that require a separate cable needle. Everything is built from knit and purl stitches alone, which makes it an excellent project for building confidence with texture knitting.

The December Tide pillow also makes a spectacular handmade gift. Knit one for yourself, then cast on another for every person on your holiday list. A chunky textured pillow in a neutral cream, warm gray, dusty sage, or deep navy looks elegant on any sofa, bed, or reading chair.

Materials and Supplies

Here is what you will need to complete one December Tide knit pillow in the finished size of approximately 18 inches by 18 inches.

Yarn: You will need approximately 300 to 350 yards of bulky weight yarn (weight category 5 or 6). Look for something with good stitch definition so the wave texture really pops. A wool or wool-blend yarn is ideal because it has natural elasticity that helps the stitches sit neatly. Some beautiful options include Lion Brand Wool-Ease Thick & Quick, Cascade Yarns Pacific Chunky, Paintbox Yarns Simply Chunky, or any comparable bulky yarn you love. For a more luxurious finish, a merino wool blend adds softness that makes the pillow an absolute pleasure to touch.

Needles: US size 10 (6mm) straight or circular needles, at least 24 inches long if you are using circulars. You can also use US size 10.5 (6.5mm) if you tend to knit tightly and want to match gauge more easily.

Additional supplies: A tapestry needle for seaming and weaving in ends, scissors, stitch markers (optional but helpful), and an 18-inch by 18-inch pillow insert. If you want a slightly fuller pillow, you can use a 20-inch insert inside your 18-inch cover — the stretch of the knit fabric will accommodate it and give you a nicely plump finished pillow.

Gauge

Getting gauge right matters here because you want your pillow cover to fit snugly around your insert. In stockinette stitch on US size 10 needles, you are aiming for approximately 12 stitches and 16 rows over 4 inches. The wave stitch pattern will knit up at a slightly tighter gauge due to the density of the texture, so always swatch before you begin.

To swatch, cast on 18 stitches and work in the wave pattern (described below) for about 5 inches. Bind off, wet block your swatch gently by soaking it in cool water for 10 minutes and then pressing out the water without wringing, then lay it flat to dry. Measure once fully dry. Adjust needle size up or down if needed.

Abbreviations Used in This Pattern

Throughout the pattern you will see the following abbreviations. If you are newer to reading knitting patterns, take a moment to review these before you start.

CO — cast on. BO — bind off. K — knit. P — purl. RS — right side. WS — wrong side. Rep — repeat. St(s) — stitch or stitches. Sl — slip stitch purlwise unless otherwise noted. PM — place marker. SM — slip marker.

Pattern Notes

The December Tide pillow is worked flat in two separate panels — a front panel and a back panel. Both panels are then seamed together on three sides, the pillow insert is tucked inside, and the final side is seamed closed. Alternatively, you can leave one side open and add buttons or a simple folded flap closure if you want to be able to remove the cover for washing.

The wave stitch pattern is worked over a multiple of 10 stitches plus 5 additional stitches for balance. The pattern creates a horizontal ripple of raised ridges that runs across the width of the pillow. On right side rows you work a combination of knit and purl that builds the ridge, and on wrong side rows you follow the established pattern to maintain the texture.

The back panel is worked in a simple seed stitch or reverse stockinette for contrast. I personally love reverse stockinette on the back because it lies flat and gives the cover a clean, professional finish on the inside. Seed stitch adds a little extra texture and stability if you prefer that.

December Tide Front Panel Pattern

Cast on 59 stitches. This gives you the multiple of 10 plus 5 needed for the wave stitch, with a little extra on each edge for a clean selvedge.

Row 1 (RS): Sl1 wyif, K2, K5, P5, rep from to last 6 sts, K6.
Row 2 (WS): Sl1 wyif, K2, P5, K5, rep from to last 6 sts, P3, K3.
Row 3 (RS): Sl1 wyif, K2, K5, P5, rep from to last 6 sts, K6.
Row 4 (WS): Sl1 wyif, K2, P5, K5, rep from to last 6 sts, P3, K3.
Row 5 (RS): Sl1 wyif, K2, P5, K5, rep from to last 6 sts, P3, K3.
Row 6 (WS): Sl1 wyif, K2, K5, P5, rep from to last 6 sts, K6.
Row 7 (RS): Sl1 wyif, K2, P5, K5, rep from to last 6 sts, P3, K3.
Row 8 (WS): Sl1 wyif, K2, K5, P5, rep from to last 6 sts, K6.

These 8 rows form the complete wave pattern repeat. Continue working rows 1 through 8 until your front panel measures approximately 18 inches from the cast on edge, ending after a row 4 or row 8 to complete a full pattern repeat. Bind off loosely in pattern.

The slipped first stitch on every row creates a clean chain selvedge along both side edges, which makes seaming much neater and easier. If you find the slipped stitch creates too tight an edge, simply knit the first stitch instead.

December Tide Back Panel Pattern

The back panel is worked in seed stitch for a clean, textured finish that complements the wave front without competing with it.

Cast on 59 stitches.

Seed Stitch Setup Row: K1, P1, rep from to last st, K1.

Repeat this row for every row of the back panel. Because you begin and end every row with K1 and the number of stitches is odd, the seed stitch naturally alternates and you never have to think about which stitch comes next. Just knit the purls and purl the knits.

Work until the back panel matches the front panel in length. Bind off loosely in pattern.

Finishing Your December Tide Knit Pillow

Once both panels are complete, it is time to block them and seam them together. Blocking is genuinely one of those steps that transforms a piece from homemade to handcrafted. Even a quick wet block makes a remarkable difference in how evenly the stitches sit and how beautifully the texture shows.

To block, soak both panels in cool water for about 10 minutes, gently press out the excess water by rolling each panel in a clean towel, then lay flat and shape to 18 by 18 inches. Use blocking pins or wires along the edges if you have them. Allow to dry completely — overnight is best.

Once blocked and dry, hold the front and back panels with wrong sides together, meaning the outsides face away from each other and you can see both right sides. Thread your tapestry needle with a length of matching yarn and use mattress stitch to seam three sides of the pillow together. Mattress stitch creates an almost invisible seam along the edges and is well worth learning if you have not used it before. Work into the chain loops of the selvedge edge on each panel, picking up one loop from each side alternately and pulling the yarn snug every few inches.

After seaming three sides, insert your pillow form through the open edge. Take your time adjusting the insert so it sits evenly inside the cover. Then seam the final side closed using the same mattress stitch.

Weave in all your yarn ends using the tapestry needle, threading each end back and forth through the back of the fabric for about an inch in two different directions to secure it. Trim any excess.

Yarn Color Ideas for December Tide

The beauty of a textured pattern like this one is that it works in nearly any color, but certain shades really make the wave motif sing.

For a classic coastal winter feel, look for a warm cream, natural oatmeal, or undyed wool. These neutrals make the raised ridges of the wave pattern stand out beautifully and work with virtually any home decor palette. A salt-and-pepper heathered gray is another gorgeous choice — it feels both modern and timeless at once.

If you want something that leans more into December’s holiday atmosphere, try a deep navy, a forest green, or a rich burgundy. These colors give the pillow a cozy, jewel-toned warmth that feels right at home next to candlelight and pine branches.

For a more contemporary look, dusty blue, soft sage, warm terracotta, or even a blush mauve all photograph beautifully and feel fresh rather than traditional. If your living space has a minimalist or Scandinavian-inspired aesthetic, a pure white or pale silver will make this pillow look right at home.

You can also stripe the pattern by switching yarn colors every two rows for a subtle horizontal color shift that echoes the wave movement. Just be sure to carry the unused yarn up the side edge so you do not have too many ends to weave in.

Tips for Knitting Success

A few small habits will make a big difference in how your December Tide pillow turns out.

Always slip the first stitch of every row as noted. This single habit makes seaming infinitely easier and gives your finished piece a polished edge. Count your stitches at the end of every few rows, especially when you are first getting the hang of the wave pattern — it is easy to accidentally add or drop a stitch when you are switching between knit and purl stitches across a row.

If you find yourself losing track of which pattern row you are on, use a row counter or keep a simple tally on a notepad. The 8-row repeat becomes very intuitive after one or two full repeats, but those first few rows benefit from careful tracking.

When you bind off, do so loosely. A tight bind off edge will cause the pillow cover to pucker at the seam and prevent it from fitting smoothly over the insert. If you consistently bind off too tightly, try binding off with a needle one or two sizes larger than you used for the body of the piece.

Caring for Your Finished Pillow

How you care for your December Tide knit pillow will depend largely on the fiber content of your yarn. If you used a superwash wool or acrylic blend, machine washing on a gentle cold cycle in a mesh laundry bag is usually safe. If you used a non-superwash wool, hand washing in cool water with a gentle wool wash is always the safest approach.

To dry, lay the cover flat rather than hanging it — hanging a wet knitted item can distort the shape significantly. Reshape gently while damp and allow to air dry away from direct heat or sunlight, which can cause some yarns to fade or become brittle over time.

Make It Your Own

One of the best things about a simple, structured pattern like this is how easily it can be modified. You can scale the pillow up or down by adjusting your stitch count in multiples of 10. Cast on 49 stitches for a smaller 14-inch pillow, or 69 stitches for a larger 20-inch version. Just keep that extra 5 stitches for the pattern balance and adjust your selvedge as needed.

You can also add a simple folded button band to the back panel instead of seaming the final edge fully closed. Divide your back panel into two overlapping rectangular flaps, pick up stitches along the overlapping edges, knit a short band, and sew on a few large buttons. This envelope closure looks beautiful and makes the pillow cover removable for easy washing.

Another lovely variation is to knit the entire pillow in the wave pattern — front and back — for a fully textured piece that looks dramatic from every angle.

A Little Something to Knit This December

The December Tide knit pillow is one of those projects that carries the season with it. Every time I pick it up to work a few rows, I think of cold mornings, quiet water, the particular gray-blue light that only December seems to hold. The rhythm of the wave pattern — that steady back and forth of knit and purl — is itself a kind of meditation, a small repeated gesture that builds into something warm and lasting.

I hope you love knitting this pattern as much as I loved designing it. Whether you make one for yourself or as a gift for someone who fills your December with warmth, this pillow is a reminder that beautiful, handmade things do not have to be complicated — they just have to be made with care.

If you knit the December Tide pillow, I would absolutely love to see it. Share your finished project and tag it so others in the knitting community can find this free pattern and make one of their own. Happy knitting, and may your December be full of all the coziest things.