Water Temperature of the St. Johns River in Jacksonville, FL

Current Water Temperature

87.3°F

Measurement Time: Friday, July 17, 2026, 7:06 PM EDT

Temperature Locations

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Local Points of Interest

Mayport, FL; Mayport Naval Station; Huguenot Memorial Park

St. Johns River

Station Name: Mayport (Bar Pilots Dock)
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 0 feet

Sensor Depth: -6 feet

Nearest Address:
4910 Ocean St
Jacksonville, FL 32233
Duval County

GPS Coordinates: 30.398167, -81.427889

Nearby Water Temperatures

Clapboard Creek, Jacksonville, FL (6.7 mi)
St. Johns River, Jacksonville, FL (7.8 mi)
St. Johns River, Jacksonville, FL (7.9 mi)
Dunn Creek, Jacksonville, FL (10.8 mi)
St. Johns River, Jacksonville, FL (11.4 mi)
Pottsburg Creek, Jacksonville, FL (11.4 mi)
Broward River, Jacksonville, FL (14.7 mi)
St. Johns River, Jacksonville, FL (15.1 mi)
St. Johns River, Jacksonville, FL (15.3 mi)
St. Johns River, Jacksonville, FL (16.3 mi)
Amelia River, Fernandina Beach, FL (19 mi)
Trout River, Jacksonville, FL (19.9 mi)
St. Johns River, Jacksonville, FL (20.2 mi)
Cedar River, Jacksonville, FL (20.3 mi)
Durbin Creek, Jacksonville, FL (20.5 mi)

Weather for Jacksonville, Florida

Current Weather

86.2°F
Partly cloudy
Partly cloudy
97.8°F
97.8°F
77%
SE 9.4 mph
13.2 mph
86.2°F
77.7°F
0 in
75%
9 mi
1017 mbar
0.5

Five Day Weather Forecast

Sunny
Fri
H: 94°F
L: 76°F
Sunny
Sat
H: 92°F
L: 77°F
Sunny
Sun
H: 91°F
L: 79°F
Sunny
Mon
H: 91°F
L: 79°F
Patchy rain nearby
Tue
H: 92°F
L: 79°F

Air Quality

AQI: 1 - Good
PM2.5: 7.6 μg/m3
PM10: 9 μg/m3
Carbon Monoxide: 149 μg/m3
Nitrogen Dioxide: 4.9 μg/m3
Sulphur Dioxide: 0.8 μg/m3
Ozone: 136 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:31 PM
Sunset: 8:29 PM
Daylight: 13 hrs 53 mins
Moonrise: 10:04 AM
Moon Transit: 4:34 PM
Moonset: 10:56 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

4:51 AM - 7:21 AM
4:04 PM - 6:34 PM

Minor Periods

10:26 PM - 11:56 PM
9:34 AM - 11:04 AM

Action Rating: 2 out of 5

Friday, July 17, 2026

Weather Forecast

Sunny
94.3°F
76.3°F
84.1°F
82%
0 in
10%
0%
11.2 mph
10.7


Air Quality

AQI: 1 - Good
PM2.5: 6.8 μg/m3
PM10: 7.25 μg/m3
Carbon Monoxide: 151.83 μg/m3
Nitrogen Dioxide: 6.21 μg/m3
Sulphur Dioxide: 0.98 μg/m3
Ozone: 109.04 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:31 PM
Sunset: 8:29 PM
Daylight: 13 hrs 53 mins
Moonrise: 10:04 AM
Moon Transit: 4:34 PM
Moonset: 10:56 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

4:51 AM - 7:21 AM
4:04 PM - 6:34 PM

Minor Periods

10:26 PM - 11:56 PM
9:34 AM - 11:04 AM

Action Rating: 2 out of 5

Saturday, July 18, 2026

Weather Forecast

Sunny
91.5°F
76.8°F
84.2°F
71%
0.1 in
57%
0%
14.8 mph
10.8


Air Quality

AQI: 1 - Good
PM2.5: 6.42 μg/m3
PM10: 7.33 μg/m3
Carbon Monoxide: 130.83 μg/m3
Nitrogen Dioxide: 3.8 μg/m3
Sulphur Dioxide: 0.79 μg/m3
Ozone: 103.46 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 1:32 PM
Sunset: 8:28 PM
Daylight: 13 hrs 52 mins
Moonrise: 11:06 AM
Moon Transit: 5:19 PM
Moonset: 11:25 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

5:38 AM - 8:08 AM
4:49 PM - 7:19 PM

Minor Periods

12:00 AM - 12:00 AM
10:36 AM - 12:06 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Sunny
90.5°F
78.7°F
84.4°F
64%
0.01 in
17%
0%
12.8 mph
9.5


Air Quality

AQI: 1 - Good
PM2.5: 6.25 μg/m3
PM10: 8.21 μg/m3
Carbon Monoxide: 112.23 μg/m3
Nitrogen Dioxide: 3.5 μg/m3
Sulphur Dioxide: 0.66 μg/m3
Ozone: 71.75 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 1:32 PM
Sunset: 8:28 PM
Daylight: 13 hrs 51 mins
Moonrise: 12:06 AM
Moon Transit: 6:03 PM
Moonset: 12:25 AM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

6:22 AM - 8:52 AM
5:33 PM - 8:03 PM

Minor Periods

11:36 AM - 1:06 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Monday, July 20, 2026

Weather Forecast

Sunny
90.9°F
78.9°F
84.3°F
68%
0.06 in
57%
0%
14.8 mph
10.9


Air Quality

AQI: 1 - Good
PM2.5: 6.03 μg/m3
PM10: 7.55 μg/m3
Carbon Monoxide: 163.5 μg/m3
Nitrogen Dioxide: 4.97 μg/m3
Sulphur Dioxide: 0.72 μg/m3
Ozone: 68.88 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 1:32 PM
Sunset: 8:27 PM
Daylight: 13 hrs 50 mins
Moonrise: 1:04 PM
Moon Transit: 6:47 PM
Moonset: 12:54 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

7:05 AM - 9:35 AM
6:17 PM - 8:47 PM

Minor Periods

12:34 AM - 2:04 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Tuesday, July 21, 2026

Weather Forecast

Patchy rain nearby
91.9°F
79.1°F
85.6°F
65%
0.05 in
57%
0%
11 mph
10.8


Air Quality

AQI: 1 - Good
PM2.5: 6.33 μg/m3
PM10: 7.3 μg/m3
Carbon Monoxide: 179.67 μg/m3
Nitrogen Dioxide: 6.44 μg/m3
Sulphur Dioxide: 0.78 μg/m3
Ozone: 59.33 μg/m3

Astronomical

Sunrise: 6:38 AM
Sun Transit: 1:32 PM
Sunset: 8:27 PM
Daylight: 13 hrs 49 mins
Moonrise: 2:02 PM
Moon Transit: 7:31 PM
Moonset: 12:24 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

7:49 AM - 10:19 AM
7:01 PM - 9:31 PM

Minor Periods

1:32 PM - 3:02 PM
12:00 AM - 12:00 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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