Water Temperature of Long Sound Near Key Largo, FL

Current Water Temperature

83.3°F 28.5°C
Warm Warm & Relaxing
83.3°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Water feels warm and inviting. Safe for extended immersion with virtually no thermal fatigue.

Measurement Time: Saturday, November 7, 2026, 6:00 AM EST

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

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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

78.9°F
Sunny
Conditions: Sunny
Humidity: 75%
Feels Like: 81.9°F
Wind: NNE 8.5 mph
Wind Gusts: 9.5 mph
Pressure: 29.93 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 6 mi
UV Index: 1.8

Weather Forecast

Sunny
Sat
H: 81°F
L: 78°F
Patchy rain nearby
Sun
H: 80°F
L: 78°F
Sunny
Mon
H: 80°F
L: 78°F

Air Quality

EPA Index 1 • Good

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

PM2.5
11.6 μg/m³
Good
PM10
15.5 μg/m³
Good
Ozone (O3)
66 μg/m³
Photochemical
NO2
7.1 μg/m³
Nitrogen Dioxide
SO2
1.5 μg/m³
Sulfur Dioxide
CO
133 μg/m³
Carbon Monoxide

Astronomical

Sun
11h 3m daylight
Sunrise 6:34 AM
Solar Noon 12:05 PM
Sunset 5:37 PM
Moon
Waning Crescent • 1%
Moonrise 5:01 AM
Transit 10:45 AM
Moonset 4:26 PM

Best Times for Fishing or Hunting

Major Periods

10:15 AM - 12:45 PM
10:38 PM - 1:08 AM

Minor Periods

4:31 AM - 6:01 AM
3:56 PM - 5:26 PM
Action Rating:
Good Action 3/5

Coastal Flood Statement issued November 7 at 1:19AM EST until November 8 at 7:00PM EST by NWS Miami FL

Effective: Sat November 7, 2026, 1:19 AM
Expires: Sat November 7, 2026, 4:00 PM

* WHAT...Isolated minor coastal flooding. * WHERE...Coastal Palm Beach County, Coastal Broward County and Coastal Miami Dade County. * WHEN...Through Sunday evening. * IMPACTS...Some water on low lying roads and property.
Saturday, November 7, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 79.9°F
Average Humidity: 71%
Chance of Rain: 19%
Wind: 10.1 mph
UV Index: 6.9

Astronomical

Sun
11h 3m daylight
Sunrise 6:34 AM
Solar Noon 12:05 PM
Sunset 5:37 PM
Moon
Waning Crescent • 1%
Moonrise 5:01 AM
Transit 10:45 AM
Moonset 4:26 PM

Best Times for Fishing or Hunting

Major Periods

10:15 AM - 12:45 PM
10:38 PM - 1:08 AM

Minor Periods

4:31 AM - 6:01 AM
3:56 PM - 5:26 PM
Action Rating:
Good Action 3/5
Sunday, November 8, 2026

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 79.2°F
Average Humidity: 75%
Chance of Rain: 73%
Wind: 11.9 mph
UV Index: 6.6

Astronomical

Sun
11h 2m daylight
Sunrise 6:34 AM
Solar Noon 12:05 PM
Sunset 5:37 PM
Moon
New • 0%
Moonrise 5:57 AM
Transit 11:31 AM
Moonset 5:02 PM

Best Times for Fishing or Hunting

Major Periods

11:01 AM - 1:31 PM
11:25 PM - 1:55 AM

Minor Periods

5:27 AM - 6:57 AM
4:32 PM - 6:02 PM
Action Rating:
Peak Action 5/5
Monday, November 9, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 79.2°F
Average Humidity: 72%
Chance of Rain: 57%
Wind: 12.8 mph
UV Index: 7

Astronomical

Sun
11h 1m daylight
Sunrise 6:35 AM
Solar Noon 12:05 PM
Sunset 5:36 PM
Moon
New • 2%
Moonrise 6:54 AM
Transit 12:19 PM
Moonset 5:41 PM

Best Times for Fishing or Hunting

Major Periods

12:14 AM - 2:44 AM
11:49 AM - 2:19 PM

Minor Periods

6:24 AM - 7:54 AM
5:11 PM - 6:41 PM
Action Rating:
Peak Action 5/5
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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