Water Temperature of Long Sound Near Key Largo, FL

Current Water Temperature

87.8°F

Measurement Time: Friday, July 24, 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

84.7°F
Sunny
Sunny
92.8°F
92.9°F
72%
ESE 12.5 mph
16.6 mph
84.7°F
74.7°F
0 in
6%
6 mi
1016 mbar
0.6

Five Day Weather Forecast

Sunny
Fri
H: 90°F
L: 83°F
Sunny
Sat
H: 86°F
L: 85°F
Sunny
Sun
H: 86°F
L: 84°F
Patchy rain nearby
Mon
H: 86°F
L: 84°F
Partly Cloudy
Tue
H: 86°F
L: 84°F

Air Quality

AQI: 1 - Good
PM2.5: 3.8 μg/m3
PM10: 5.8 μg/m3
Carbon Monoxide: 90 μg/m3
Nitrogen Dioxide: 1.8 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 49 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 1:28 PM
Sunset: 8:11 PM
Daylight: 13 hrs 26 mins
Moonrise: 4:36 PM
Moon Transit: 9:50 PM
Moonset: 2:18 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

10:14 AM - 12:44 AM
9:20 PM - 11:50 PM

Minor Periods

4:06 PM - 5:36 PM
1:48 AM - 3:18 AM

Action Rating: 2 out of 5

Friday, July 24, 2026

Weather Forecast

Sunny
90.1°F
82.6°F
85.6°F
73%
0.03 in
38%
0%
19 mph
11.7


Air Quality

AQI: 1 - Good
PM2.5: 4.33 μg/m3
PM10: 6.69 μg/m3
Carbon Monoxide: 92.46 μg/m3
Nitrogen Dioxide: 1.03 μg/m3
Sulphur Dioxide: 0.41 μg/m3
Ozone: 56 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 1:28 PM
Sunset: 8:11 PM
Daylight: 13 hrs 26 mins
Moonrise: 4:36 PM
Moon Transit: 9:50 PM
Moonset: 2:18 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

10:14 AM - 12:44 AM
9:20 PM - 11:50 PM

Minor Periods

4:06 PM - 5:36 PM
1:48 AM - 3:18 AM

Action Rating: 2 out of 5

Saturday, July 25, 2026

Weather Forecast

Sunny
85.7°F
84.8°F
85.5°F
71%
0.25 in
68%
0%
14.8 mph
11.2


Air Quality

AQI: 1 - Good
PM2.5: 5.1 μg/m3
PM10: 7.5 μg/m3
Carbon Monoxide: 92.33 μg/m3
Nitrogen Dioxide: 0.78 μg/m3
Sulphur Dioxide: 0.39 μg/m3
Ozone: 57.33 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 1:28 PM
Sunset: 8:11 PM
Daylight: 13 hrs 25 mins
Moonrise: 5:30 PM
Moon Transit: 10:41 PM
Moonset: 3:04 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

11:05 AM - 1:35 PM
12:00 AM - 12:00 AM

Minor Periods

5:00 PM - 6:30 PM
2:34 AM - 4:04 AM

Action Rating: 2 out of 5

Sunday, July 26, 2026

Weather Forecast

Sunny
86°F
84.3°F
85.3°F
69%
0.02 in
36%
0%
10.3 mph
11.3


Air Quality

AQI: 1 - Good
PM2.5: 3.9 μg/m3
PM10: 5.66 μg/m3
Carbon Monoxide: 91.63 μg/m3
Nitrogen Dioxide: 0.73 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 54.63 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 1:28 PM
Sunset: 8:10 PM
Daylight: 13 hrs 24 mins
Moonrise: 6:21 PM
Moon Transit: 11:33 PM
Moonset: 3:54 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

11:56 AM - 2:26 PM
12:00 AM - 12:00 AM

Minor Periods

5:51 PM - 7:21 PM
3:24 AM - 4:54 AM

Action Rating: 2 out of 5

Monday, July 27, 2026

Weather Forecast

Patchy rain nearby
85.6°F
84°F
85.1°F
67%
0.08 in
57%
0%
10.1 mph
2.8


Air Quality

AQI: 1 - Good
PM2.5: 8.95 μg/m3
PM10: 13.01 μg/m3
Carbon Monoxide: 99.57 μg/m3
Nitrogen Dioxide: 0.82 μg/m3
Sulphur Dioxide: 0.35 μg/m3
Ozone: 67.92 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 1:28 PM
Sunset: 8:10 PM
Daylight: 13 hrs 23 mins
Moonrise: 7:07 PM
Moon Transit: 12:00 AM
Moonset: 4:48 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:47 AM - 3:17 PM

Minor Periods

6:37 PM - 8:07 PM
4:18 AM - 5:48 AM

Action Rating: 3 out of 5

Tuesday, July 28, 2026

Weather Forecast

Partly Cloudy
85.8°F
83.6°F
84.8°F
69%
0.01 in
17%
0%
11.4 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 7.31 μg/m3
PM10: 10.76 μg/m3
Carbon Monoxide: 136.67 μg/m3
Nitrogen Dioxide: 0.7 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 78.44 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 1:28 PM
Sunset: 8:09 PM
Daylight: 13 hrs 22 mins
Moonrise: 7:49 PM
Moon Transit: 12:23 AM
Moonset: 5:43 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:37 PM - 4:07 PM

Minor Periods

7:19 PM - 8:49 PM
5:13 AM - 6:43 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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