Savannah, GA → Key West, FL

From Savannah's historic squares, you'll head south on Interstate 95, one of America's busiest coastal corridors, before transitioning to US Highway 17 through the Georgia and Florida Low Country. This stretch carries you through some of the Southeast's most distinctive terrain—a landscape of salt marshes, moss-draped live oaks, and tidal creeks that define the coastal plain between Savannah and Jacksonville. As you progress deeper into Florida on I-95 and eventually US Route 1, the elevation gradually diminishes, and the terrain flattens considerably, signaling your transition from the subtropical uplands toward the tropical peninsula. The drive's character shifts markedly around the Melbourne area, where you'll leave the busier interstate behind and embrace the slower pace of Florida's Space Coast and central regions.

The most dramatic transformation occurs as you approach the Florida Keys themselves, where US Route 1 becomes the legendary Overseas Highway. After passing through Miami's sprawling urban corridors and the Homestead agricultural belt, you'll cross the Seven Mile Bridge and dozens of smaller causeways that connect a string of limestone islands stretching 160 miles into the Gulf of Mexico and Atlantic Ocean. This final stretch to Key West is unlike any other driving experience in America—you're essentially driving on water with mangrove shorelines and turquoise ocean visible from both sides of the road, a surreal journey that takes roughly three hours alone.

The entire route encompasses a remarkable range of American landscapes: coastal marshlands, pine flatwoods, bustling metropolitan areas, and finally the exotic island chain of the Keys. Urban driving demands patience through Jacksonville, the Miami area, and smaller town centers throughout central Florida, while long rural stretches between Savannah and Jacksonville and again between West Palm Beach and the Keys offer opportunities for steady cruising. Winter months from November through March offer the most pleasant driving conditions with moderate temperatures and lower humidity, while summer driving from June through September brings oppressive heat and the elevated risk of afternoon thunderstorms that can reduce visibility dramatically.

The 678-mile drive from Savannah, Georgia to Key West, Florida takes approximately 11h 22m under normal conditions. Weather along this route can vary significantly, especially along coastal regions where fog and marine weather can impact visibility. Route Outlook helps you find the safest time to travel by showing you weather conditions at every point along your route, timed to when you'll actually be there.

Common Weather Hazards on This Route

• Severe thunderstorms and flash flooding (spring and summer)
• Hurricane and tropical storm impacts (June through November)

Seasonal Driving Considerations

Coastal weather on this route can shift quickly. Marine fog is common during morning hours, especially in spring and fall, reducing visibility to near zero. Hurricane season (June through November) can bring extended road closures and dangerous conditions. During fair weather, coastal routes offer scenic driving — but always verify conditions with live traffic cameras before heading out.

Best Time to Drive Savannah to Key West

For long drives like this 678-mile journey, planning is essential. Consider breaking the trip into segments if weather looks challenging. The best approach is to check conditions for multiple departure times using Route Outlook's optimizer, which considers weather at each point when you'll actually be there.

Driving Strategy

Covering 678 miles from Savannah to Key West is a full-day or multi-day drive that requires advance planning. Break the route into manageable segments, planning fuel and rest stops every 2-3 hours. Weather that looks fine at departure may deteriorate significantly at the midpoint. Consider booking overnight accommodation if the forecast shows deteriorating conditions in the latter half. Route Outlook's segment-level weather data helps you identify exactly where and when conditions will change.

Frequently Asked Questions