Water Temperature of the Florida Bay Near Key Largo, FL

Current Water Temperature

74.7°F 23.7°C
Comfortable Ideal for Swimming
74.7°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Pleasant and refreshing. Ideal for recreational swimming, triathlons, and active water recreation without thermal gear.

Measurement Time: Sunday, November 15, 2026, 2:00 AM EST

Temperature Locations

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Local Points of Interest

Butternut Key; Florida Bay; Everglades National Park; Gulf of Mexico; Atlantic Ocean

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Florida Bay

Station Name: Butternut Key, FL
Station Type: Fixed
Data Source: National Data Buoy Center

Elevation Above Sea Level: 0 feet

Nearest Address:
Offshore
Key Largo, FL 33037
Monroe County

GPS Coordinates: 25.087, -80.519

Nearby Water Temperatures

Mud Creek, Homestead, FL (9 mi)
Little Madeira Bay, Homestead, FL (9.4 mi)
Joe Bay, Key Largo, FL (9.6 mi)
Joe Bay, Key Largo, FL (10.1 mi)
Little Blackwater Sound, Key Largo, FL (10.3 mi)
Taylor River, Homestead, FL (10.4 mi)
Long Sound, Key Largo, FL (10.9 mi)
Florida Bay, Islamorada, FL (11 mi)
West Highway Creek, Key Largo, FL (11.6 mi)
Manatee Bay, Homestead, FL (12.1 mi)
Taylor River, Homestead, FL (12.2 mi)
Whipray Basin, Islamorada, FL (13.6 mi)
Seven Palm Lake, Flamingo, FL (14.1 mi)
Taylor Slough, Homestead, FL (15.4 mi)
Barnes Sound, Key Largo, FL (15.9 mi)

Marine Weather for the Florida Bay Near Key Largo, FL

Marine Weather

Coastal & Marine Conditions
Open-Meteo Marine
1.4ft 0.4 m
Light Chop Gentle waves and light chop, ideal for water activities.
Wave Period 3s
Wave Direction 11° N
Swell Waves
0.4 ft
3.6s • 64° ENE
Wind Waves / Chop
1.2 ft
2.4s • 4° N
Ocean Current
0.4 mph
0.3 kn • 198° SSW
Sea Surface Temp
79.5°F
Equivalent: 26.4°C

High & Low Tide Forecast

Falling (Ebb)
Next Tide: Low 6:00 AM (-1.2 ft)
0.0 ft (MSL) Sat, Nov 14 12 AM 6 AM 12 PM 6 PM 12 AM 6 AM Sun, Nov 15 Mon, Nov 16 ▲ High 10:00 PM +0.0 ft ▼ Low 6:00 AM -1.2 ft ▲ High 10:00 AM -0.3 ft ▼ Low 11:00 AM -0.3 ft ▲ High 1:00 PM -0.2 ft ▼ Low 6:00 PM -0.8 ft ▲ High 10:00 PM +0.1 ft NOW
High Tide Sat, Nov 14
10:00 PM
+0.0 ft (0.01 m)
Low Tide Sun, Nov 15
6:00 AM
-1.2 ft (-0.38 m)
High Tide Sun, Nov 15
10:00 AM
-0.3 ft (-0.08 m)
Low Tide Sun, Nov 15
11:00 AM
-0.3 ft (-0.09 m)
Open-Meteo Tidal Model (Mean Sea Level MSL datum) • Times in station local timezone.

5-Day Marine Wave Forecast

Today
Nov 15
1.8 ft
3.2s • NNE
Mon
Nov 16
2.6 ft
3.8s • ENE
Tue
Nov 17
3.1 ft
4.3s • ENE
Wed
Nov 18
3.1 ft
4.3s • ENE
Thu
Nov 19
3.5 ft
4.5s • ENE

Weather Near Key Largo, Florida

Current Weather

66.7°F
Overcast
Conditions: Overcast
Humidity: 68%
Feels Like: 60.6°F
Wind: N 18.8 mph
Wind Gusts: 20.1 mph
Pressure: 30.05 in
Precipitation: 0 in
Cloud Cover: 99%
Visibility: 17.2 mi
UV Index: 0

Five-Day Weather Forecast

Overcast
Sun
H: 77°F
L: 66°F
Sunny
Mon
H: 78°F
L: 74°F
Moderate Drizzle
Tue
H: 78°F
L: 71°F
Thunderstorm
Wed
H: 77°F
L: 72°F
Light Rain Showers
Thu
H: 78°F
L: 71°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
5 μg/m³
Good
PM10
6.1 μg/m³
Good
Ozone (O3)
65 μg/m³
Photochemical
NO2
6.1 μg/m³
Nitrogen Dioxide
SO2
0.9 μg/m³
Sulfur Dioxide
CO
129 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 55m daylight
Sunrise 6:39 AM
Solar Noon 12:06 PM
Sunset 5:34 PM
Moon
Waxing Crescent • 31%
Moonrise 11:51 AM
Transit 5:18 PM
Moonset 10:51 PM

Best Times for Fishing or Hunting

Major Periods

4:25 AM - 6:55 AM
4:48 PM - 7:18 PM

Minor Periods

11:21 AM - 12:51 PM
10:21 PM - 11:51 PM
Action Rating:
Good Action 3/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 71.8°F
Average Humidity: 70%
Chance of Rain: 2%
Wind: 20.5 mph
UV Index: 4.7

Air Quality

EPA Index 1 • Good
PM2.5
6.6 μg/m³
Good
PM10
8.9 μg/m³
Good
Ozone (O3)
80.9 μg/m³
Photochemical
NO2
4.2 μg/m³
Nitrogen Dioxide
SO2
0.8 μg/m³
Sulfur Dioxide
CO
123.4 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 55m daylight
Sunrise 6:39 AM
Solar Noon 12:06 PM
Sunset 5:34 PM
Moon
Waxing Crescent • 31%
Moonrise 11:51 AM
Transit 5:18 PM
Moonset 10:51 PM

Best Times for Fishing or Hunting

Major Periods

4:25 AM - 6:55 AM
4:48 PM - 7:18 PM

Minor Periods

11:21 AM - 12:51 PM
10:21 PM - 11:51 PM
Action Rating:
Good Action 3/5
Monday, November 16, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 76.8°F
Average Humidity: 61%
Chance of Rain: 5%
Wind: 17.7 mph
UV Index: 5.3

Air Quality

EPA Index 1 • Good
PM2.5
5.5 μg/m³
Good
PM10
8.9 μg/m³
Good
Ozone (O3)
92.8 μg/m³
Photochemical
NO2
1.1 μg/m³
Nitrogen Dioxide
SO2
0.4 μg/m³
Sulfur Dioxide
CO
116 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 54m daylight
Sunrise 6:40 AM
Solar Noon 12:06 PM
Sunset 5:34 PM
Moon
First Quarter • 42%
Moonrise 12:27 PM
Transit 6:03 PM
Moonset 11:44 PM

Best Times for Fishing or Hunting

Major Periods

5:11 AM - 7:41 AM
5:33 PM - 8:03 PM

Minor Periods

11:57 AM - 1:27 PM
11:14 PM - 12:44 AM
Action Rating:
Good Action 3/5
Tuesday, November 17, 2026

Weather Forecast

Conditions: Moderate Drizzle
Average Temperature: 74.3°F
Average Humidity: 77%
Chance of Rain: 42%
Wind: 20.4 mph
UV Index: 5.3

Air Quality

EPA Index 1 • Good
PM2.5
6.7 μg/m³
Good
PM10
11 μg/m³
Good
Ozone (O3)
91.3 μg/m³
Photochemical
NO2
1.1 μg/m³
Nitrogen Dioxide
SO2
0.3 μg/m³
Sulfur Dioxide
CO
113.8 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 53m daylight
Sunrise 6:41 AM
Solar Noon 12:07 PM
Sunset 5:33 PM
Moon
First Quarter • 54%
Moonrise 12:59 PM
Transit 6:46 PM
Moonset 1:24 AM

Best Times for Fishing or Hunting

Major Periods

5:54 AM - 8:24 AM
6:16 PM - 8:46 PM

Minor Periods

12:54 AM - 2:24 AM
12:29 PM - 1:59 PM
Action Rating:
Fair Action 2/5
Wednesday, November 18, 2026

Weather Forecast

Conditions: Thunderstorm
Average Temperature: 73.9°F
Average Humidity: 77%
Chance of Rain: 66%
Wind: 20.4 mph
UV Index: 5

Air Quality

EPA Index 1 • Good
PM2.5
6.7 μg/m³
Good
PM10
11.1 μg/m³
Good
Ozone (O3)
90.8 μg/m³
Photochemical
NO2
1.3 μg/m³
Nitrogen Dioxide
SO2
0.4 μg/m³
Sulfur Dioxide
CO
115.2 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 52m daylight
Sunrise 6:41 AM
Solar Noon 12:07 PM
Sunset 5:33 PM
Moon
First Quarter • 65%
Moonrise 1:30 PM
Transit 7:28 PM
Moonset 12:39 AM

Best Times for Fishing or Hunting

Major Periods

6:37 AM - 9:07 AM
6:58 PM - 9:28 PM

Minor Periods

12:09 AM - 1:39 AM
1:00 PM - 2:30 PM
Action Rating:
Good Action 3/5
Thursday, November 19, 2026

Weather Forecast

Conditions: Light Rain Showers
Average Temperature: 73.6°F
Average Humidity: 77%
Chance of Rain: 66%
Wind: 19.8 mph
UV Index: 5.1

Air Quality

EPA Index 1 • Good
PM2.5
3 μg/m³
Good
PM10
4.9 μg/m³
Good
Ozone (O3)
84.8 μg/m³
Photochemical
NO2
1.5 μg/m³
Nitrogen Dioxide
SO2
0.3 μg/m³
Sulfur Dioxide
CO
127.9 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 51m daylight
Sunrise 6:42 AM
Solar Noon 12:07 PM
Sunset 5:33 PM
Moon
Waxing Gibbous • 75%
Moonrise 2:02 PM
Transit 8:15 PM
Moonset 1:32 AM

Best Times for Fishing or Hunting

Major Periods

7:20 AM - 9:50 AM
7:45 PM - 10:15 PM

Minor Periods

1:02 AM - 2:32 AM
1:32 PM - 3:02 PM
Action Rating:
Fair Action 2/5
The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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