Shamrock Shakes 2025 Battery. Shamrock shakes, as we all know, are only available for a limited time. The shamrock shake is making a return.

Here are some fun facts you may not know about this delicious treat (including how it’s linked to the start of ronald mcdonald house charities®): And even if you do hit up your local mcdonald’s during the right season, they may not be in stock.