South Florida boat owners, take note: this week brings the coldest temperatures the region has seen since 2010. While we're used to year-round boating in Fort Lauderdale and Miami, these rare cold snaps can catch unprepared vessels off guard—and lead to costly damage.
Whether your boat sits at a marina, on a lift, or in dry storage, here's what you need to know to get through the cold safely.
What's Coming and Why It Matters
Temperatures across Miami-Dade and Broward counties are expected to drop significantly over the next few days. For boats that rarely see weather below 50°F, even a brief freeze can cause problems—particularly for engines, plumbing systems, and batteries that aren't prepared for the cold.
The good news? A little preparation now can prevent headaches (and repair bills) later.
Protect Your Engine and Plumbing
Freshwater systems are the most vulnerable. If temperatures drop near freezing, water left in lines, tanks, or the head can expand and crack fittings or hoses.
- Drain freshwater tanks and lines if you won't be using the boat for the next few days
- Run the engine to operating temperature before the cold hits—this circulates fluids and ensures everything is functioning
- Check raw water intake and confirm antifreeze is present in enclosed cooling systems if applicable
- Inspect hoses and fittings for any existing cracks that cold weather could worsen
If you're unsure about winterization steps for your specific engine, a local boat mechanic can walk you through it or handle the prep for you.
Battery and Electrical Checks
Cold weather is hard on marine batteries. A battery that's been struggling in Miami's heat may fail completely when temperatures drop.
- Test battery voltage—a healthy battery should read 12.6V or higher
- Clean terminals and check for corrosion, which Miami's salt air accelerates
- Ensure bilge pumps are operational—you don't want a surprise during rough weather
- Consider a trickle charger if the boat will sit unused for the week
Cover and Secure
Beyond mechanical systems, take a few minutes to button up the boat:
- Install covers or canvas to keep wind and moisture out of the cockpit
- Secure loose items—cold fronts often bring gusty winds
- Check dock lines for wear and adjust for any expected weather changes
Looking Ahead: Miami Boat Show 2026
Once this cold snap passes, South Florida's boating calendar heats up quickly. The Discover Boating Miami International Boat Show runs February 11–15 at the Miami Beach Convention Center and surrounding venues. It's a great opportunity to explore new gear, talk to marine service providers, and kick off the season right.
And if this week's cold weather reveals any maintenance issues with your boat, you'll have time to address them before peak season hits.
Need Help Preparing?
If you'd rather have a professional handle cold weather prep—or if you discover any issues during your inspection—Boatwork connects you with trusted marine mechanics and marine electricians throughout Fort Lauderdale, Miami, and South Florida.
