how long is the shamrock shake out for

McDonald’s Shamrock Shake is usually out for only a few weeks each year, from mid‑February through St. Patrick’s Day and then “while supplies last,” so you should plan on roughly a one‑month window.

How long is the Shamrock Shake out for?

Quick Scoop

For 2026 in the U.S., McDonald’s has brought back the Shamrock Shake starting February 17, alongside the Oreo Shamrock McFlurry.

McDonald’s has not given a hard end date, and officially calls it a limited‑time, seasonal item available only while supplies last.

Looking at recent years:

• In 2025, the shake was available from early February through at least the St. Patrick’s Day weekend (around March 17–23), then continued only while ingredients lasted at each store.

• Articles and fan coverage note that the drink “only sticks around for a few weeks each year,” centered on St. Patrick’s Day.

• Employee and fan forum posts suggest many locations drop it shortly after March 17–18 or whenever the special syrup runs out.

So in practice:

• Expect it to be reliably available from mid‑February through St. Patrick’s Day.
• After that, it’s hit‑or‑miss by location, and some stores may run out earlier than others.

What this means for you

If you’re wondering “how long is the Shamrock Shake out for,” the safe rule is:

• Aim to grab one before or right around St. Patrick’s Day.
• Don’t count on it being around much past late March, and availability can vary by store because it’s tied to remaining stock.

Information gathered from public forums or data available on the internet and portrayed here.