Water Temperature of Long Sound Near Key Largo, FL

Current Water Temperature

74.8°F

Measurement Time: Wednesday, April 22, 2026, 2:00 AM EDT

Temperature Locations

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Local Points of Interest

Little Blackwater Sound; Florida Bay; Barnes Sound; Florida Keys National Marine Sactuary; Everglades National Park; Florida Keys; Gulf of Mexico

Long Sound

Station Name: Long Sound, 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: 25.235, -80.457

Nearby Water Temperatures

West Highway Creek, Key Largo, FL (0.8 mi)
Little Blackwater Sound, Key Largo, FL (2.1 mi)
Manatee Bay, Homestead, FL (2.2 mi)
Joe Bay, Key Largo, FL (4.2 mi)
Joe Bay, Key Largo, FL (5.3 mi)
Barnes Sound, Key Largo, FL (5.3 mi)
Mud Creek, Homestead, FL (8.2 mi)
Florida Bay, Key Largo, FL (10.9 mi)
Little Madeira Bay, Homestead, FL (11.7 mi)
Taylor River, Homestead, FL (11.8 mi)
Taylor River, Homestead, FL (12.1 mi)
Taylor Slough, Homestead, FL (14.2 mi)
Seven Palm Lake, Flamingo, FL (17.1 mi)
Mowry Canal Number C-103, Homestead, FL (17.7 mi)
Florida Bay, Islamorada, FL (20.1 mi)

Weather Near Key Largo, Florida

Current Weather

71.4°F
Clear
Clear
71.4°F
77.2°F
53%
E 22.1 mph
27.6 mph
74.3°F
58.4°F
0 in
0%
9 mi
1020 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Wed
H: 77°F
L: 74°F
Patchy rain nearby
Thu
H: 76°F
L: 74°F
Patchy rain nearby
Fri
H: 77°F
L: 76°F
Patchy rain nearby
Sat
H: 78°F
L: 76°F
Sunny
Sun
H: 79°F
L: 76°F

Air Quality

AQI: 1 - Good
PM2.5: 10.25 μg/m3
PM10: 15.75 μg/m3
Carbon Monoxide: 129.85 μg/m3
Nitrogen Dioxide: 1.45 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 117 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 1:20 PM
Sunset: 7:48 PM
Daylight: 12 hrs 55 mins
Moonrise: 11:24 AM
Moon Transit: 6:36 PM
Moonset: 12:49 AM
Moon Phase: Waxing Crescent
Moon Illumination: 28.4%

Best Times for Fishing or Hunting

Major Periods

6:55 AM - 9:25 AM
6:06 PM - 8:36 PM

Minor Periods

10:54 AM - 12:24 AM
12:19 AM - 1:49 AM

Action Rating: 3 out of 5

Rip Current Statement issued April 21 at 7:50PM EDT until April 23 at 8:00PM EDT by NWS Miami FL

Effective: Tue April 21, 2026, 7:50 PM
Expires: Wed April 22, 2026, 4:00 PM

* WHAT...Dangerous rip currents. * WHERE...Coastal Broward County and Coastal Miami Dade County. * WHEN...Through Thursday evening. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water.

Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.
Wednesday, April 22, 2026

Weather Forecast

Patchy rain nearby
77.4°F
74.1°F
75.3°F
60%
0.03 in
87%
0%
24.8 mph
6.6


Air Quality

AQI: 1 - Good
PM2.5: 9.31 μg/m3
PM10: 14.8 μg/m3
Carbon Monoxide: 129.85 μg/m3
Nitrogen Dioxide: 1.47 μg/m3
Sulphur Dioxide: 1.07 μg/m3
Ozone: 115.36 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 1:20 PM
Sunset: 7:48 PM
Daylight: 12 hrs 55 mins
Moonrise: 11:24 AM
Moon Transit: 6:36 PM
Moonset: 12:49 AM
Moon Phase: Waxing Crescent
Moon Illumination: 28.4%

Best Times for Fishing or Hunting

Major Periods

6:55 AM - 9:25 AM
6:06 PM - 8:36 PM

Minor Periods

10:54 AM - 12:24 AM
12:19 AM - 1:49 AM

Action Rating: 3 out of 5

Thursday, April 23, 2026

Weather Forecast

Patchy rain nearby
75.6°F
74.3°F
75.2°F
62%
0.04 in
80%
0%
20.8 mph
8.7


Air Quality

AQI: 1 - Good
PM2.5: 9.53 μg/m3
PM10: 14.13 μg/m3
Carbon Monoxide: 128.85 μg/m3
Nitrogen Dioxide: 1.42 μg/m3
Sulphur Dioxide: 1.09 μg/m3
Ozone: 111.88 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 1:20 PM
Sunset: 7:48 PM
Daylight: 12 hrs 56 mins
Moonrise: 12:32 AM
Moon Transit: 7:34 PM
Moonset: 1:44 AM
Moon Phase: First Quarter
Moon Illumination: 39.1%

Best Times for Fishing or Hunting

Major Periods

7:55 AM - 10:25 AM
7:04 PM - 9:34 PM

Minor Periods

12:02 AM - 1:32 PM
1:14 AM - 2:44 AM

Action Rating: 2 out of 5

Friday, April 24, 2026

Weather Forecast

Patchy rain nearby
76.8°F
75.6°F
76.3°F
68%
0.05 in
86%
0%
17.4 mph
9.8


Air Quality

AQI: 1 - Good
PM2.5: 8.34 μg/m3
PM10: 12.41 μg/m3
Carbon Monoxide: 126.97 μg/m3
Nitrogen Dioxide: 1.38 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 103.68 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 1:19 PM
Sunset: 7:49 PM
Daylight: 12 hrs 57 mins
Moonrise: 1:36 PM
Moon Transit: 8:27 PM
Moonset: 2:32 AM
Moon Phase: First Quarter
Moon Illumination: 50.4%

Best Times for Fishing or Hunting

Major Periods

8:50 AM - 11:20 AM
7:57 PM - 10:27 PM

Minor Periods

1:06 PM - 2:36 PM
2:02 AM - 3:32 AM

Action Rating: 3 out of 5

Saturday, April 25, 2026

Weather Forecast

Patchy rain nearby
78.2°F
76.4°F
77.3°F
67%
0.04 in
79%
0%
12.5 mph
10.4


Air Quality

AQI: 1 - Good
PM2.5: 7.11 μg/m3
PM10: 10.44 μg/m3
Carbon Monoxide: 125.65 μg/m3
Nitrogen Dioxide: 1.55 μg/m3
Sulphur Dioxide: 1.16 μg/m3
Ozone: 94.44 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 1:19 PM
Sunset: 7:49 PM
Daylight: 12 hrs 59 mins
Moonrise: 2:37 PM
Moon Transit: 9:15 PM
Moonset: 3:11 AM
Moon Phase: First Quarter
Moon Illumination: 61.6%

Best Times for Fishing or Hunting

Major Periods

9:40 AM - 12:10 AM
8:45 PM - 11:15 PM

Minor Periods

2:07 PM - 3:37 PM
2:41 AM - 4:11 AM

Action Rating: 2 out of 5

Sunday, April 26, 2026

Weather Forecast

Sunny
79.4°F
76.1°F
77.3°F
64%
0 in
0%
0%
9.6 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 3.94 μg/m3
PM10: 5.5 μg/m3
Carbon Monoxide: 124.02 μg/m3
Nitrogen Dioxide: 2.2 μg/m3
Sulphur Dioxide: 1.1 μg/m3
Ozone: 79 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 1:19 PM
Sunset: 7:50 PM
Daylight: 13 hrs mins
Moonrise: 3:34 PM
Moon Transit: 10:00 PM
Moonset: 3:47 AM
Moon Phase: First Quarter
Moon Illumination: 72.3%

Best Times for Fishing or Hunting

Major Periods

10:26 AM - 12:56 AM
12:00 AM - 12:00 AM

Minor Periods

3:04 PM - 4:34 PM
3:17 AM - 4:47 AM

Action Rating: 2 out of 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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