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

Current Water Temperature

77.4°F

Measurement Time: Monday, May 12, 2025, 7:48 PM EDT

Today's Tides

 Low: May 12, 3:07 AM, 0.27 ft
High: May 12, 9:14 AM, 4.01 ft
 Low: May 12, 2:51 PM, 0.21 ft
High: May 12, 9:40 PM, 4.91 ft

Temperature Locations

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Local Points of Interest

Mayport, FL; Mayport Naval Station; Huguenot Memorial Park

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St. Johns River

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

Elevation Above Sea Level: 0 feet / 0 meters

Sensor Depth: -5.9 feet / -1.8 meters

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 (19.0 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

80.1°F
Partly cloudy
Conditions: Partly cloudy
Humidity: 71%
Feels Like: 86.3°F
Wind: SSE 12.8 mph
Wind Gusts: 19.1 mph
Pressure: 29.9 in
Precipitation: 0 in
Cloud Cover: 75%
Visibility: 9 mi
UV Index: 0.4

Five Day Weather Forecast

Heavy rain
Mon
H: 78°F
L: 73°F
Partly Cloudy
Tue
H: 82°F
L: 70°F
Sunny
Wed
H: 86°F
L: 70°F
Sunny
Thu
H: 89°F
L: 72°F
Sunny
Fri
H: 91°F
L: 71°F

Air Quality

AQI: 1 - Good
PM2.5: 3.15 μg/m3
PM10: 3.15 μg/m3
Carbon Monoxide: 347.8 μg/m3
Nitrogen Dioxide: 8.7 μg/m3
Sulphur Dioxide: 3.7 μg/m3
Ozone: 67 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 1:22 PM
Sunset: 8:11 PM
Daylight: 13 hrs 38 mins
Moonrise: 8:32 PM
Moon Transit: 12:55 AM
Moonset: 6:11 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:25 AM - 2:55 AM
1:58 PM - 4:28 PM

Minor Periods

8:02 PM - 9:32 PM
5:41 AM - 7:11 AM

Action Rating: 4 out of 5

Rip Current Statement issued May 12 at 3:10AM EDT until May 13 at 4:00AM EDT by NWS Jacksonville FL

Effective: Mon May 12, 2025, 3:10 AM
Expires: Mon May 12, 2025, 5:00 PM

* WHAT...Dangerous rip currents. * WHERE...Northeast Florida Beaches. * WHEN...Through late tonight. * 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 May 12 at 3:10AM EDT until May 13 at 4:00AM EDT by NWS Jacksonville FL

Effective: Mon May 12, 2025, 3:10 AM
Expires: Mon May 12, 2025, 5:00 PM

* WHAT...Dangerous rip currents. * WHERE...Northeast Florida Beaches. * WHEN...Through late tonight. * 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 May 12 at 3:10AM EDT until May 13 at 4:00AM EDT by NWS Jacksonville FL

Effective: Mon May 12, 2025, 3:10 AM
Expires: Mon May 12, 2025, 5:00 PM

* WHAT...Dangerous rip currents. * WHERE...Northeast Florida Beaches. * WHEN...Through late tonight. * 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 May 12 at 3:10AM EDT until May 13 at 4:00AM EDT by NWS Jacksonville FL

Effective: Mon May 12, 2025, 3:10 AM
Expires: Mon May 12, 2025, 5:00 PM

* WHAT...Dangerous rip currents. * WHERE...Northeast Florida Beaches. * WHEN...Through late tonight. * 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 May 12 at 3:10AM EDT until May 13 at 4:00AM EDT by NWS Jacksonville FL

Effective: Mon May 12, 2025, 3:10 AM
Expires: Mon May 12, 2025, 5:00 PM

* WHAT...Dangerous rip currents. * WHERE...Northeast Florida Beaches. * WHEN...Through late tonight. * 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.
Monday, May 12, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 74.9°F
Average Humidity: 89%
Chance of Rain: 73%
Wind: 18.6 mph
UV Index: 1.8

Air Quality

AQI: 1 - Good
PM2.5: 8.5 μg/m3
PM10: 11.32 μg/m3
Carbon Monoxide: 234.36 μg/m3
Nitrogen Dioxide: 4.43 μg/m3
Sulphur Dioxide: 2.43 μg/m3
Ozone: 68.72 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 1:22 PM
Sunset: 8:11 PM
Daylight: 13 hrs 38 mins
Moonrise: 8:32 PM
Moon Transit: 12:55 AM
Moonset: 6:11 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:25 AM - 2:55 AM
1:58 PM - 4:28 PM

Minor Periods

8:02 PM - 9:32 PM
5:41 AM - 7:11 AM

Action Rating: 4 out of 5

Tuesday, May 13, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 75.7°F
Average Humidity: 77%
Chance of Rain: 0%
Wind: 11.6 mph
UV Index: 2

Air Quality

AQI: 1 - Good
PM2.5: 10.86 μg/m3
PM10: 13.72 μg/m3
Carbon Monoxide: 320.64 μg/m3
Nitrogen Dioxide: 4.62 μg/m3
Sulphur Dioxide: 2.73 μg/m3
Ozone: 92.24 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:22 PM
Sunset: 8:12 PM
Daylight: 13 hrs 39 mins
Moonrise: 9:29 PM
Moon Transit: 1:41 AM
Moonset: 6:48 AM
Moon Phase: Full
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

1:11 AM - 3:41 AM
2:46 PM - 5:16 PM

Minor Periods

8:59 PM - 10:29 PM
6:18 AM - 7:48 AM

Action Rating: 4 out of 5

Wednesday, May 14, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 76.9°F
Average Humidity: 71%
Chance of Rain: 0%
Wind: 13.9 mph
UV Index: 2.5

Air Quality

AQI: 1 - Good
PM2.5: 12.17 μg/m3
PM10: 14.71 μg/m3
Carbon Monoxide: 314.57 μg/m3
Nitrogen Dioxide: 4.12 μg/m3
Sulphur Dioxide: 2.18 μg/m3
Ozone: 106.76 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 1:22 PM
Sunset: 8:13 PM
Daylight: 13 hrs 40 mins
Moonrise: 10:27 PM
Moon Transit: 2:31 AM
Moonset: 7:30 AM
Moon Phase: Full
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

2:01 AM - 4:31 AM
3:38 PM - 6:08 PM

Minor Periods

9:57 PM - 11:27 PM
7:00 AM - 8:30 AM

Action Rating: 4 out of 5

Thursday, May 15, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 79.6°F
Average Humidity: 69%
Chance of Rain: 0%
Wind: 9.4 mph
UV Index: 2.6

Air Quality

AQI: 1 - Good
PM2.5: 14.68 μg/m3
PM10: 18.47 μg/m3
Carbon Monoxide: 311.54 μg/m3
Nitrogen Dioxide: 5.35 μg/m3
Sulphur Dioxide: 1.93 μg/m3
Ozone: 94.72 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 1:22 PM
Sunset: 8:13 PM
Daylight: 13 hrs 42 mins
Moonrise: 11:21 PM
Moon Transit: 3:23 AM
Moonset: 8:19 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

2:53 AM - 5:23 AM
4:31 PM - 7:01 PM

Minor Periods

12:00 AM - 12:00 AM
7:49 AM - 9:19 AM

Action Rating: 2 out of 5

Friday, May 16, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 80°F
Average Humidity: 60%
Chance of Rain: 0%
Wind: 10.5 mph
UV Index: 2.6

Air Quality

AQI: 1 - Good
PM2.5: 11.75 μg/m3
PM10: 15.13 μg/m3
Carbon Monoxide: 287.03 μg/m3
Nitrogen Dioxide: 4.63 μg/m3
Sulphur Dioxide: 1.12 μg/m3
Ozone: 75.85 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 1:22 PM
Sunset: 8:14 PM
Daylight: 13 hrs 43 mins
Moonrise: 12:21 AM
Moon Transit: 4:17 AM
Moonset: 9:14 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

3:47 AM - 6:17 AM
5:25 PM - 7:55 PM

Minor Periods

8:44 AM - 10:14 AM
12:00 AM - 12:00 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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