Dry Tortugas National Park, FL

Today’s Forecast:

Today’s Report:

About Dry Tortugas National Park

The forecast point for Dry Tortugas National Park represents conditions near Fort Jefferson, while exposed water, beaches, wetlands, courses, or remote access within the coverage area may differ. The day’s key decisions involve open-Gulf wind and waves, ferry and seaplane status, private-vessel safety, heat, and water supply.

Planning an Outing at Dry Tortugas National Park

Check open-Gulf wind and waves, ferry and seaplane status, private-vessel safety, heat, and water supply for the exact access point and activity—not just the nearest city forecast. Confirm current park, refuge, marina, ramp, ferry, road, bridge, course, or operator notices that apply to Dry Tortugas National Park, and preserve enough daylight and shelter margin to change plans.

Weather Tips

• Check wind, tides, marine forecasts, beach flags or inlet current, and water-quality notices for the exact access area.
• Leave beaches, boats, piers, jetties, and exposed shorelines immediately when thunder is heard.
• During tropical threats, follow local evacuation, bridge, marina, ferry, campground, and coastal-closure instructions; storm surge may affect access before landfall.
• Check conditions near Garden Key shortly before the activity starts.
• Use sun protection, hydration, insect protection, and a reliable lightning shelter.

Nearby Towns and Areas

Use this forecast as practical context for outdoor plans near:

• Fort Jefferson
• Garden Key
• Loggerhead Key
• Bush Key
• Key West ferry terminal
• Rebecca Shoal
• Marquesas Keys

Adjust the Day to the Forecast

Ferry, seaplane, or private-vessel cancellation ends the trip plan; once offshore, there is no equivalent sheltered substitute for worsening Gulf conditions.

7-Day Forecast for Dry Tortugas National Park

Weather by Season

Winter

At Dry Tortugas National Park, winter offers lower heat, but successive fronts frequently decide ferry, seaplane, and private-vessel access. For boating near Fort Jefferson, check the destination-specific forecast and operating notice before committing.

Spring

Spring can offer calmer crossings, but vessel availability, rising heat, water needs, and afternoon storms remain decisive. For paddling near Garden Key, check the destination-specific forecast and operating notice before committing.

Summer

Heat, limited fresh water, lightning, and tropical seas make summer access wholly dependent on operators and marine forecasts. For fishing near Loggerhead Key, check the destination-specific forecast and operating notice before committing.

Fall

Tropical seas can cancel all transport early in fall; later fronts reduce heat but may still prevent exposed crossings. For camping near Bush Key, check the destination-specific forecast and operating notice before committing.

Key Climate Data Points

• Annual average temperature: roughly 76–79°F in South Florida and the Keys.
• Annual snowfall: measurable snowfall is essentially absent; rare cold snaps can still bring frost inland.
• Warmest months: July and August are generally hottest, with heat index often more important than air temperature.
• Coolest months: January is usually coolest; passing cold fronts can create abrupt wind and temperature changes.
• Wettest season: Summer and early fall usually bring the most rain, thunderstorms, and tropical moisture.
• Driest season: Late fall through spring is generally drier, with regional drought and wildfire concerns possible.
• Best outdoor window: Late fall through spring often offers lower humidity; warm-season plans benefit from early starts and storm flexibility.