Best Time to Visit Key West: Weather, Seasons & Top Things to Do

Rank Kings
Jan 27
3 min read

Key West is a year-round destination, but the best time to visit Key West depends on what kind of adventure you’re looking for — calm water snorkeling, sandbar days, fishing, or trips to the Dry Tortugas. Weather, crowds, and marine conditions all play a role, and choosing the right season can make a huge difference in your experience.

Below is a season-by-season breakdown of the best times to visit Key West, plus the top activities to enjoy during each period.

Best Overall Time to Visit Key West

March through May

Spring is widely considered the best overall time to visit Key West. The weather is warm but not overwhelming, humidity is manageable, and the water is calm and clear.

Why this is peak season:

Average temps: 75–85°F
Low rainfall
Excellent visibility for water activities
Fewer crowds than winter

Best activities in spring:

Key West snorkeling
Sandbar trips
Spearfishing
Day trips to the Dry Tortugas

This is the sweet spot if you want perfect weather and ideal ocean conditions.

Best Time for Sandbars, Snorkeling & Calm Water

April through August

If your goal is floating on turquoise water, anchoring up at a sandbar, or snorkeling coral reefs, late spring through summer is ideal.

Why this season shines:

Flat seas and light winds
Warm water (no wetsuit needed)
Long daylight hours

Top experiences:

Key West Sandbar trips
Key West Snorkeling
Shallow-water reef exploration

Summer afternoons can be hot, but mornings on the water are spectacular.

Best Time for Fishing, Spearfishing & Lobstering

July through September

This is prime time for anglers and underwater hunters. While it’s warmer and more humid, marine life is abundant and conditions are excellent offshore.

Highlights:

Key West Spearfishing is at its best
Florida Keys lobster season (Aug–Mar) begins
Fewer tourists on the water

If you’re experienced and want action-packed days, this is your window.

Best Time to Visit the Dry Tortugas

March through June

The Dry Tortugas are weather-dependent, and spring to early summer offers the calmest crossings and clearest water.

Perfect for:

Dry Tortugas Charters
Snorkeling around Fort Jefferson
Photography and wildlife viewing

Camping trips also benefit from calmer seas during this period.

Best Time for Dry Tortugas Camping

April through early June

Camping in the Dry Tortugas is unforgettable — but timing matters.

Why late spring works best:

Lower wind and wave activity
Cooler nights than midsummer
Fewer weather delays

Camping later in summer can be extremely hot and unpredictable due to storms.

Best Time to Visit Key West on a Budget

September through November

This is the off-season, but also when you’ll find the lowest prices on lodging and charters.

Pros:

Fewer crowds
Discounted tours
Warm water and air temps

Cons:

Hurricane season (travel insurance recommended)

For flexible travelers, this can be a great value window.

Winter in Key West (December–February)

Winter offers beautiful weather, but it’s also the busiest and most expensive time to visit.

Expect:

Cooler temps (65–75°F)
Stronger winds
Busy streets and booked tours

Great for sightseeing and nightlife, but not always ideal for calm-water activities.

Final Verdict: When Should You Visit Key West?

Your Priority	Best Time
Overall experience	March–May
Snorkeling & sandbars	April–August
Fishing & spearfishing	July–September
Dry Tortugas trips	March–June
Camping	April–June
Budget travel	Sept–Nov