Key West, Florida Weather in May

May weather

May feels warm and sticky in Key West, with highs around 27°C and little difference after dark. Rain falls on many days, but there's still plenty of sunshine. Showers can interrupt a walk, so keep indoor stops like the Key West Aquarium in mind.

The water and warm weather suit snorkelling trips and relaxed swims. Old Town's pastel houses are pleasant to explore between showers, but long stretches outdoors can feel tiring in the humidity. June gets hotter and much wetter, so May is a better choice for outdoor plans.

Events and crowds

The Key West Songwriters Festival usually brings performers to venues around town in May. It's a good way to hear the stories behind country and other popular songs. Dates and line-ups change each year.

If you hate crowds, avoid Memorial Day weekend, when holiday visitors can make Duval Street and popular sunset spots busier. Outside that weekend, May is generally quieter than Key West's busy winter season. Prices often ease after the winter rush, though holiday demand can push them up.

Local tips for Key West

Travelling with kids? The Key West Butterfly & Nature Conservatory makes a handy indoor stop when a shower rolls through. It's on Duval Street, close to other Old Town sights.

For a local food break, try conch fritters: fried bites made with conch, a shellfish served across the Keys. You'll find them on many menus, including around the Historic Seaport. If you've booked a boat trip, ask the operator how rain affects departures; showers are common, and sea conditions matter more than a wet walk through town.