Water Temperature of Long Sound Near Key Largo, FL

Current Water Temperature

82.4°F

Measurement Time: Wednesday, May 27, 2026, 6:00 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

86.2°F
Light rain
Light rain
100.8°F
93.4°F
70%
ESE 21 mph
27.5 mph
83.7°F
79.9°F
0 in
75%
9 mi
1018 mbar
7.1

Five Day Weather Forecast

Sunny
Wed
H: 86°F
L: 81°F
Moderate rain
Thu
H: 82°F
L: 78°F
Moderate rain
Fri
H: 83°F
L: 79°F
Moderate rain
Sat
H: 84°F
L: 80°F
Partly Cloudy
Sun
H: 84°F
L: 81°F

Air Quality

AQI: 1 - Good
PM2.5: 8.05 μg/m3
PM10: 12.95 μg/m3
Carbon Monoxide: 109.85 μg/m3
Nitrogen Dioxide: 1.25 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 71 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:19 PM
Sunset: 8:06 PM
Daylight: 13 hrs 33 mins
Moonrise: 5:07 PM
Moon Transit: 10:48 PM
Moonset: 3:52 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.7%

Best Times for Fishing or Hunting

Major Periods

11:15 AM - 1:45 PM
12:00 AM - 12:00 AM

Minor Periods

4:37 PM - 6:07 PM
3:22 AM - 4:52 AM

Action Rating: 2 out of 5

Rip Current Statement issued May 27 at 4:03AM EDT until May 27 at 8:00PM EDT by NWS Miami FL

Effective: Wed May 27, 2026, 4:03 AM
Expires: Wed May 27, 2026, 12:15 PM

* WHAT...Dangerous rip currents. * WHERE...Coastal Broward County and Coastal Miami Dade County. * WHEN...Through This 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, May 27, 2026

Weather Forecast

Sunny
86.4°F
81.1°F
82.5°F
79%
0 in
0%
0%
22.6 mph
11


Air Quality

AQI: 1 - Good
PM2.5: 7.63 μg/m3
PM10: 12.41 μg/m3
Carbon Monoxide: 109.73 μg/m3
Nitrogen Dioxide: 1.46 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 62.36 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:19 PM
Sunset: 8:06 PM
Daylight: 13 hrs 33 mins
Moonrise: 5:07 PM
Moon Transit: 10:48 PM
Moonset: 3:52 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.7%

Best Times for Fishing or Hunting

Major Periods

11:15 AM - 1:45 PM
12:00 AM - 12:00 AM

Minor Periods

4:37 PM - 6:07 PM
3:22 AM - 4:52 AM

Action Rating: 2 out of 5

Thursday, May 28, 2026

Weather Forecast

Moderate rain
81.5°F
77.7°F
80.6°F
79%
0.43 in
89%
0%
17.9 mph
10.9


Air Quality

AQI: 1 - Good
PM2.5: 7.85 μg/m3
PM10: 12.46 μg/m3
Carbon Monoxide: 108.81 μg/m3
Nitrogen Dioxide: 1.55 μg/m3
Sulphur Dioxide: 1.07 μg/m3
Ozone: 65.32 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:19 PM
Sunset: 8:06 PM
Daylight: 13 hrs 34 mins
Moonrise: 6:02 PM
Moon Transit: 11:32 PM
Moonset: 4:25 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.7%

Best Times for Fishing or Hunting

Major Periods

11:59 AM - 2:29 PM
12:00 AM - 12:00 AM

Minor Periods

5:32 PM - 7:02 PM
3:55 AM - 5:25 AM

Action Rating: 2 out of 5

Friday, May 29, 2026

Weather Forecast

Moderate rain
82.5°F
79.1°F
81.4°F
72%
0.28 in
87%
0%
7.4 mph
11.6


Air Quality

AQI: 1 - Good
PM2.5: 5.73 μg/m3
PM10: 8.94 μg/m3
Carbon Monoxide: 108.25 μg/m3
Nitrogen Dioxide: 1.82 μg/m3
Sulphur Dioxide: 1.14 μg/m3
Ozone: 60.08 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 1:19 PM
Sunset: 8:07 PM
Daylight: 13 hrs 34 mins
Moonrise: 6:57 PM
Moon Transit: 12:00 AM
Moonset: 5:00 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:44 AM - 3:14 PM

Minor Periods

6:27 PM - 7:57 PM
4:30 AM - 6:00 AM

Action Rating: 3 out of 5

Saturday, May 30, 2026

Weather Forecast

Moderate rain
84°F
80.3°F
82.2°F
71%
0.2 in
80%
0%
15.2 mph
8.4


Air Quality

AQI: 1 - Good
PM2.5: 6.27 μg/m3
PM10: 9.28 μg/m3
Carbon Monoxide: 118.93 μg/m3
Nitrogen Dioxide: 1.77 μg/m3
Sulphur Dioxide: 1.38 μg/m3
Ozone: 64.72 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 1:19 PM
Sunset: 8:07 PM
Daylight: 13 hrs 35 mins
Moonrise: 7:52 PM
Moon Transit: 12:19 AM
Moonset: 5:39 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:33 PM - 4:03 PM

Minor Periods

7:22 PM - 8:52 PM
5:09 AM - 6:39 AM

Action Rating: 4 out of 5

Sunday, May 31, 2026

Weather Forecast

Partly Cloudy
84.4°F
81°F
82.8°F
69%
0 in
0%
0%
10.1 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 8.66 μg/m3
PM10: 13.21 μg/m3
Carbon Monoxide: 141.93 μg/m3
Nitrogen Dioxide: 2.42 μg/m3
Sulphur Dioxide: 1.94 μg/m3
Ozone: 79.62 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 1:19 PM
Sunset: 8:08 PM
Daylight: 13 hrs 36 mins
Moonrise: 8:47 PM
Moon Transit: 1:08 AM
Moonset: 6:24 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:38 AM - 3:08 AM
2:23 PM - 4:53 PM

Minor Periods

8:17 PM - 9:47 PM
5:54 AM - 7:24 AM

Action Rating: 4 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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