Winter in the Pacific Northwest brings moisture, wind, and long periods of inactivity for many boats. Proper winterization protects your investment, prevents costly repairs, and ensures you’re ready to hit the water when spring arrives.

Here’s a practical checklist to help you get your boat ready for the off-season.

Step 1: Clean your boat thoroughly

Before storing, wash:

• Hull and topsides
• Decks and rails
• Cockpit and hatches

Remove any food, paper products, or cloth items that can attract moisture or pests. A clean boat stores better and prevents staining and mildew.

Step 2: Fuel and engine care

Proper mechanical winterizing may include:

• Stabilizing fuel
• Fogging the engine (if recommended)
• Changing engine oil and filters
• Flushing and protecting raw-water systems

A certified marine technician can perform this professionally to protect against corrosion and internal damage.

Step 3: Protect your boat with shrink-wrap

Shrink-wrapping is one of the best defenses against winter weather. It helps:

• Keep moisture out
• Prevent pooling rainwater
• Stop debris buildup
• Reduce UV exposure

Vents are typically added to allow airflow, minimizing mold and mildew risk.

Step 4: Choose the right storage option

Your options usually include:

• Dry storage — excellent long-term protection and easier maintenance access
• In-water moorage — convenient but requires extra winter prep

If stored in the water, ensure lines, fenders, and bilge pumps are secure and functioning.

Step 5: Don’t forget your batteries

Either:

• Disconnect and remove batteries, or
• Keep them on a proper marine trickle charger

Dead batteries are one of the most common springtime frustrations for boaters.

A little preparation now means less time fixing problems and more time enjoying the coming boating season.