October in Key West, Florida, typically marks the transition from the wet, hot summer to the drier, cooler fall season. Average high temperatures reside in the low 80s Fahrenheit (high 20s Celsius), while lows dip into the mid-70s Fahrenheit (low 20s Celsius). Rainfall decreases significantly compared to the summer months, although the chance of tropical storms and hurricanes remains a possibility. Ocean temperatures remain warm, making swimming and other water activities still enjoyable.
This period offers a desirable climate for many visitors, combining warm days with comfortable evenings. The reduced rainfall and humidity provide more pleasant conditions for outdoor exploration and activities. Historically, October has represented a shoulder season for tourism, offering potentially lower prices and fewer crowds compared to peak winter months while still providing favorable weather. This transitional period is also significant for the local ecosystem, as migratory birds begin to pass through the region.