Big Coppitt Key Island

Residential island in the lower Florida Keys

A low-lying island in the Lower Florida Keys near Key West, known for marinas, sportfishing, snorkel and easy access to the Florida Reef; visitors combine boating, diving and casual Key seafood.

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Big Coppitt Key at a Glance#

Address: Big Coppitt Key, Monroe County, Florida, United States

About Big Coppitt Key#

Big Coppitt Key is a small island and census-designated place in the Lower Florida Keys, Monroe County, Florida, at coordinates 24.59931, -81.6587. It is a residential island with waterfront properties, marinas, and direct road connections.

The island offers roadside access to boat launches, small marinas and waterside accommodation, and is commonly used as a base for fishing, boating and accessing nearby reefs. The community is compact and most visitor activity centers on water-based recreation rather than large tourist attractions.

The island developed as part of the settled Lower Keys and is traversed by U.S. Route 1 (the Overseas Highway), which links it to other Keys and to Key West. Its modern character is mainly residential and marine-oriented.

Positioned in the Lower Keys chain, Big Coppitt Key lies on the Atlantic/Gulf side of the Overseas Highway, about 8 miles (13 kilometers) east of Key West.

  • Access: Located on the Overseas Highway, providing direct road access to the rest of the Florida Keys.
  • Proximity to Key West: Approximately 8 miles (about 13 kilometers) east of Key West, making it convenient for day trips to Key West and nearby diving and fishing spots.

How to Get to Big Coppitt Key#

Big Coppitt Key is reached via U.S. Route 1 (Overseas Highway), about 6-8 miles south of Key West depending on the route. The drive from Key West is short; local roads on the island serve residences and marinas.

Tips for Visiting Big Coppitt Key#

  • Big Coppitt Key is a residential island - be respectful of private property and quiet hours.
  • Stop at local dive shops for up-to-date snorkel and reef reports; the Florida Keys' reefs are fragile and conditions change.
  • If looking for seafood, check local schedules; small community eateries can sell out quickly.

Best Time to Visit Big Coppitt Key#

Winters are busiest and most comfortable; summer brings heat and the risk of tropical storms.

Winter
December-April · 18-26°C (64-79°F)
Peak season with comfortable temperatures and lower humidity.
Summer
June-September · 25-33°C (77-91°F)
Hot and humid with higher chance of thunderstorms; hurricane season runs June-November.

Weather & Climate near Big Coppitt Key#

Climate

Big Coppitt Key's climate is classified as Tropical Savanna - Tropical Savanna climate with hot summers (peaking in July) and warm winters (coldest in January). Temperatures range from 18°C to 32°C. Abundant rainfall (1039 mm/year), wettest in September.

Air Quality: AQI 25 Good
Temperature & Rainfall
Temperature Range
32°
Warmest Month
18°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January - 18° - 24° 21° 61 mm - - 4.7 m/s - -
February - 18° - 24° 21° 41 mm - - 4.8 m/s - -
March - 20° - 26° 23° 47 mm - - 5.0 m/s - -
April - 22° - 27° 25° 50 mm - - 4.8 m/s - -
May - 24° - 29° 27° 94 mm - - 4.2 m/s - -
June - 25° - 31° 28° 140 mm - - 3.5 m/s - -
July - 26° - 32° 29° 96 mm - - 3.4 m/s - -
August - 26° - 32° 29° 142 mm - - 3.1 m/s - -
September - 25° - 31° 28° 148 mm - - 3.6 m/s - -
October - 24° - 29° 27° 115 mm - - 4.3 m/s - -
November - 21° - 27° 24° 51 mm - - 4.8 m/s - -
December - 19° - 25° 22° 54 mm - - 4.6 m/s - -

Nearby Attractions to Big Coppitt Key#