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

Current Water Temperature

70.3°F

Measurement Time: Tuesday, April 28, 2026, 8:12 AM EDT

Today's Tides

Low: April 28, 12:41 AM, 0.2 ft
 High: April 28, 7:07 AM, 4.5 ft
Low: April 28, 12:55 PM, 0.0 ft
 High: April 28, 7:38 PM, 5.0 ft

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

69.1°F
Sunny
Sunny
69.1°F
73.7°F
93%
E 6 mph
8.9 mph
70.2°F
65.5°F
0 in
25%
9 mi
1020 mbar
0.5

Five Day Weather Forecast

Sunny
Tue
H: 84°F
L: 66°F
Patchy rain nearby
Wed
H: 82°F
L: 68°F
Moderate rain
Thu
H: 80°F
L: 68°F
Patchy rain nearby
Fri
H: 79°F
L: 69°F
Partly Cloudy
Sat
H: 89°F
L: 69°F

Air Quality

AQI: 1 - Good
PM2.5: 8.45 μg/m3
PM10: 12.15 μg/m3
Carbon Monoxide: 141.85 μg/m3
Nitrogen Dioxide: 3.05 μg/m3
Sulphur Dioxide: 4.25 μg/m3
Ozone: 113 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 1:23 PM
Sunset: 8:02 PM
Daylight: 13 hrs 17 mins
Moonrise: 5:30 PM
Moon Transit: 11:28 PM
Moonset: 4:52 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.6%

Best Times for Fishing or Hunting

Major Periods

11:47 AM - 2:17 PM
12:00 AM - 12:00 AM

Minor Periods

5:00 PM - 6:30 PM
4:22 AM - 5:52 AM

Action Rating: 2 out of 5

Rip Current Statement issued April 27 at 11:03AM EDT until April 28 at 10:00PM EDT by NWS Jacksonville FL

Effective: Mon April 27, 2026, 11:03 AM
Expires: Tue April 28, 2026, 5:00 AM

* WHAT...Dangerous rip currents. * WHERE...Northeast Florida Beaches. * WHEN...Through Tuesday 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.


Rip Current Statement issued April 28 at 2:23AM EDT until April 28 at 10:00PM EDT by NWS Jacksonville FL

Effective: Tue April 28, 2026, 2:23 AM
Expires: Tue April 28, 2026, 10:00 PM

* WHAT...Dangerous rip currents. * WHERE...Northeast Florida Beaches. * 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.
Tuesday, April 28, 2026

Weather Forecast

Sunny
83.5°F
66.4°F
73°F
77%
0 in
0%
0%
12.3 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 8.17 μg/m3
PM10: 11.51 μg/m3
Carbon Monoxide: 145.81 μg/m3
Nitrogen Dioxide: 4.18 μg/m3
Sulphur Dioxide: 3.35 μg/m3
Ozone: 102.16 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 1:23 PM
Sunset: 8:02 PM
Daylight: 13 hrs 17 mins
Moonrise: 5:30 PM
Moon Transit: 11:28 PM
Moonset: 4:52 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.6%

Best Times for Fishing or Hunting

Major Periods

11:47 AM - 2:17 PM
12:00 AM - 12:00 AM

Minor Periods

5:00 PM - 6:30 PM
4:22 AM - 5:52 AM

Action Rating: 2 out of 5

Wednesday, April 29, 2026

Weather Forecast

Patchy rain nearby
81.8°F
68.3°F
73.5°F
76%
0.02 in
89%
0%
11 mph
9.3


Air Quality

AQI: 1 - Good
PM2.5: 7.33 μg/m3
PM10: 9.55 μg/m3
Carbon Monoxide: 154.21 μg/m3
Nitrogen Dioxide: 5.21 μg/m3
Sulphur Dioxide: 2.76 μg/m3
Ozone: 97.2 μg/m3

Astronomical

Sunrise: 6:44 AM
Sun Transit: 1:23 PM
Sunset: 8:03 PM
Daylight: 13 hrs 18 mins
Moonrise: 6:27 PM
Moon Transit: 12:00 AM
Moonset: 5:19 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:30 AM - 3:00 PM

Minor Periods

5:57 PM - 7:27 PM
4:49 AM - 6:19 AM

Action Rating: 3 out of 5

Thursday, April 30, 2026

Weather Forecast

Moderate rain
79.7°F
68.4°F
72.6°F
76%
0.4 in
89%
0%
10.1 mph
9.2


Air Quality

AQI: 1 - Good
PM2.5: 6.89 μg/m3
PM10: 7.77 μg/m3
Carbon Monoxide: 166.61 μg/m3
Nitrogen Dioxide: 4.55 μg/m3
Sulphur Dioxide: 2.73 μg/m3
Ozone: 99.76 μg/m3

Astronomical

Sunrise: 6:43 AM
Sun Transit: 1:22 PM
Sunset: 8:03 PM
Daylight: 13 hrs 20 mins
Moonrise: 7:24 PM
Moon Transit: 12:10 AM
Moonset: 5:48 AM
Moon Phase: Full
Moon Illumination: 99.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:12 PM - 3:42 PM

Minor Periods

6:54 PM - 8:24 PM
5:18 AM - 6:48 AM

Action Rating: 5 out of 5

Friday, May 1, 2026

Weather Forecast

Patchy rain nearby
78.8°F
69.2°F
73.5°F
81%
0.11 in
85%
0%
10.1 mph
10.1


Air Quality

AQI: 1 - Good
PM2.5: 10.96 μg/m3
PM10: 13.18 μg/m3
Carbon Monoxide: 186.92 μg/m3
Nitrogen Dioxide: 8.33 μg/m3
Sulphur Dioxide: 5.59 μg/m3
Ozone: 104.28 μg/m3

Astronomical

Sunrise: 6:42 AM
Sun Transit: 1:22 PM
Sunset: 8:04 PM
Daylight: 13 hrs 21 mins
Moonrise: 8:22 PM
Moon Transit: 12:54 AM
Moonset: 6:19 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:24 AM - 2:54 AM
1:57 PM - 4:27 PM

Minor Periods

7:52 PM - 9:22 PM
5:49 AM - 7:19 AM

Action Rating: 4 out of 5

Saturday, May 2, 2026

Weather Forecast

Partly Cloudy
88.8°F
69°F
75.6°F
75%
0 in
0%
0%
18.3 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 13.23 μg/m3
PM10: 17.11 μg/m3
Carbon Monoxide: 224.89 μg/m3
Nitrogen Dioxide: 12.27 μg/m3
Sulphur Dioxide: 3.51 μg/m3
Ozone: 83.62 μg/m3

Astronomical

Sunrise: 6:42 AM
Sun Transit: 1:22 PM
Sunset: 8:05 PM
Daylight: 13 hrs 23 mins
Moonrise: 9:20 PM
Moon Transit: 1:39 AM
Moonset: 6:53 AM
Moon Phase: Full
Moon Illumination: 98.4%

Best Times for Fishing or Hunting

Major Periods

1:09 AM - 3:39 AM
2:44 PM - 5:14 PM

Minor Periods

8:50 PM - 10:20 PM
6:23 AM - 7:53 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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