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.

Temperature & Rainfall
Temperature Range
32°
Warmest Month
18°
Coldest Month
Monthly Conditions

January

January is mild with highs of 24°C and lows of 18°C. Moderate rainfall (61 mm).

Comfort

21°
Feels Like Mild
21°C
Temperature
18° 24°

Weather

61 mm
Rainfall
4.7 m/s
Wind
Light Breeze

February

February is mild with highs of 24°C and lows of 18°C. Moderate rainfall (41 mm).

Comfort

21°
Feels Like Mild
21°C
Temperature
18° 24°

Weather

41 mm
Rainfall
4.8 m/s
Wind
Light Breeze

March

March is mild with highs of 26°C and lows of 20°C. Moderate rainfall (47 mm).

Comfort

23°
Feels Like Mild
23°C
Temperature
20° 26°

Weather

47 mm
Rainfall
5.0 m/s
Wind
Light Breeze

April

April is warm with highs of 27°C and lows of 22°C. Moderate rainfall (50 mm).

Comfort

25°
Feels Like Warm
25°C
Temperature
22° 27°

Weather

50 mm
Rainfall
4.8 m/s
Wind
Light Breeze

May

May is warm with highs of 29°C and lows of 24°C. Regular rainfall (94 mm).

Comfort

27°
Feels Like Warm
27°C
Temperature
24° 29°

Weather

94 mm
Rainfall
4.2 m/s
Wind
Light Breeze

June

June is hot with highs of 31°C and lows of 25°C. Significant rainfall (140 mm).

Comfort

28°
Feels Like Hot
28°C
Temperature
25° 31°

Weather

140 mm
Rainfall
3.5 m/s
Wind
Light Breeze

July

July is the hottest month with highs of 32°C and lows of 26°C. Regular rainfall (96 mm).

Comfort

29°
Feels Like Hot
29°C
Temperature
26° 32°

Weather

96 mm
Rainfall
3.4 m/s
Wind
Light Breeze

August

August is the hottest month with highs of 32°C and lows of 26°C. Significant rainfall (142 mm).

Comfort

29°
Feels Like Hot
29°C
Temperature
26° 32°

Weather

142 mm
Rainfall
3.1 m/s
Wind
Light Breeze

September

September is hot with highs of 31°C and lows of 25°C. The wettest month with heavy rain (148 mm).

Comfort

28°
Feels Like Hot
28°C
Temperature
25° 31°

Weather

148 mm
Rainfall
3.6 m/s
Wind
Light Breeze

October

October is warm with highs of 29°C and lows of 24°C. Significant rainfall (115 mm).

Comfort

27°
Feels Like Warm
27°C
Temperature
24° 29°

Weather

115 mm
Rainfall
4.3 m/s
Wind
Light Breeze

November

November is warm with highs of 27°C and lows of 21°C. Moderate rainfall (51 mm).

Comfort

24°
Feels Like Warm
24°C
Temperature
21° 27°

Weather

51 mm
Rainfall
4.8 m/s
Wind
Light Breeze

December

December is mild with highs of 25°C and lows of 19°C. Moderate rainfall (54 mm).

Comfort

22°
Feels Like Mild
22°C
Temperature
19° 25°

Weather

54 mm
Rainfall
4.6 m/s
Wind
Light Breeze

Nearby Attractions to Big Coppitt Key#