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

Current Water Temperature

67.5°F

Measurement Time: Tuesday, March 17, 2026, 2:54 AM EDT

Today's Tides

Low: March 17, 2:32 AM, -0.3 ft
 High: March 17, 8:53 AM, 3.5 ft
Low: March 17, 3:05 PM, -0.4 ft
 High: March 17, 9:07 PM, 3.5 ft

Temperature Locations

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Local Points of Interest

Dames Point; Blount Island

St. Johns River

Station Name: Dames Point
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 30 feet

Sensor Depth: -3 feet

Nearest Address:
I-295 S
Jacksonville, FL 32226
Duval County

GPS Coordinates: 30.387222, -81.559166

Nearby Water Temperatures

St. Johns River, Jacksonville, FL (0.1 mi)
St. Johns River, Jacksonville, FL (3.9 mi)
Clapboard Creek, Jacksonville, FL (4.8 mi)
Dunn Creek, Jacksonville, FL (5.2 mi)
Pottsburg Creek, Jacksonville, FL (7 mi)
Broward River, Jacksonville, FL (7.6 mi)
St. Johns River, Jacksonville, FL (7.8 mi)
St. Johns River, Jacksonville, FL (7.9 mi)
St. Johns River, Jacksonville, FL (8.3 mi)
St. Johns River, Jacksonville, FL (10.5 mi)
Trout River, Jacksonville, FL (12.4 mi)
Cedar River, Jacksonville, FL (13 mi)
St. Johns River, Jacksonville, FL (15 mi)
St. Johns River, Orange Park, FL (16.4 mi)
Ortega River, Jacksonville, FL (16.4 mi)

Weather for Jacksonville, Florida

Current Weather

43°F
Clear
Clear
37.3°F
41.1°F
62%
NNW 10.1 mph
13.4 mph
34.9°F
31.6°F
0 in
0%
9 mi
1018 mbar
0

Five Day Weather Forecast

Sunny
Tue
H: 55°F
L: 38°F
Sunny
Wed
H: 63°F
L: 46°F
Partly Cloudy
Thu
H: 68°F
L: 52°F
Sunny
Fri
H: 69°F
L: 50°F
Partly Cloudy
Sat
H: 78°F
L: 55°F

Air Quality

PM2.5: 3.05 μg/m3
PM10: 3.15 μg/m3
Carbon Monoxide: 177.85 μg/m3
Nitrogen Dioxide: 4.25 μg/m3
Sulphur Dioxide: 2.85 μg/m3
Ozone: 87 μg/m3

Astronomical

Sunrise: 7:33 AM
Sun Transit: 12:00 AM
Sunset: 7:36 PM
Daylight: 12 hrs 2 mins
Moonrise: 6:42 AM
Moon Transit: 12:29 AM
Moonset: 6:25 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:46 AM - 3:16 AM
11:59 AM - 2:29 PM

Minor Periods

5:55 PM - 7:25 PM
6:12 AM - 7:42 AM

Action Rating: 5 out of 5

Freeze Watch issued March 17 at 1:05AM EDT until March 18 at 9:00AM EDT by NWS Jacksonville FL

Effective: Tue March 17, 2026, 1:05 AM
Expires: Tue March 17, 2026, 5:00 PM

* WHAT...Sub-freezing temperatures as low as the lower 30s possible. * WHERE...Portions of northeast and northern Florida and southeast Georgia. * WHEN...From late tonight through Wednesday morning. * IMPACTS...Appropriate action should be taken to ensure tender vegetation and outdoor pets have adequate protection from the cold temperatures. Young children, the elderly and the homeless are especially vulnerable to the cold. Take measures to protect them.

Take steps now to protect tender plants from the cold.


Frost Advisory issued March 17 at 1:05AM EDT until March 18 at 9:00AM EDT by NWS Jacksonville FL

Effective: Tue March 17, 2026, 1:05 AM
Expires: Tue March 17, 2026, 5:00 PM

* WHAT...Temperatures as low as 33 to 36 will result in frost formation. * WHERE...Western Clay, Western Putnam, Bradford, Central Marion, Eastern Alachua, Gilchrist, Western Alachua, and Western Marion Counties. * WHEN...From 4 AM to 9 AM EDT Wednesday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.


Freeze Watch issued March 16 at 1:38PM EDT until March 18 at 8:00AM EDT by NWS Jacksonville FL

Effective: Mon March 16, 2026, 1:38 PM
Expires: Tue March 17, 2026, 6:00 AM

* WHAT...Sub-freezing temperatures as low as 30 possible. * WHERE...Brantley, Clinch, Northeastern Charlton, Northern Ware, Pierce, Southern Ware, Wayne, and Western Charlton Counties. * WHEN...From late Tuesday night through Wednesday morning. * IMPACTS...Appropriate action should be taken to ensure tender vegetation and outdoor pets have adequate protection from the cold temperatures. Young children, the elderly and the homeless are especially vulnerable to the cold. Take measures to protect them.

Take steps now to protect tender plants from the cold.
Tuesday, March 17, 2026

Weather Forecast

Sunny
54.9°F
37.8°F
46.8°F
53%
0 in
0%
0%
12.5 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 4.59 μg/m3
PM10: 4.89 μg/m3
Carbon Monoxide: 178.73 μg/m3
Nitrogen Dioxide: 4.19 μg/m3
Sulphur Dioxide: 3.67 μg/m3
Ozone: 100.8 μg/m3

Astronomical

Sunrise: 7:33 AM
Sun Transit: 12:00 AM
Sunset: 7:36 PM
Daylight: 12 hrs 2 mins
Moonrise: 6:42 AM
Moon Transit: 12:29 AM
Moonset: 6:25 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:46 AM - 3:16 AM
11:59 AM - 2:29 PM

Minor Periods

5:55 PM - 7:25 PM
6:12 AM - 7:42 AM

Action Rating: 5 out of 5

Wednesday, March 18, 2026

Weather Forecast

Sunny
63.1°F
46°F
53.6°F
53%
0 in
0%
0%
10.1 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 6.4 μg/m3
PM10: 7.76 μg/m3
Carbon Monoxide: 177.81 μg/m3
Nitrogen Dioxide: 5.01 μg/m3
Sulphur Dioxide: 3.85 μg/m3
Ozone: 103.92 μg/m3

Astronomical

Sunrise: 7:32 AM
Sun Transit: 12:00 AM
Sunset: 7:36 PM
Daylight: 12 hrs 4 mins
Moonrise: 7:12 AM
Moon Transit: 12:00 AM
Moonset: 7:28 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

6:58 PM - 8:28 PM
6:42 AM - 8:12 AM

Action Rating: 3 out of 5

Thursday, March 19, 2026

Weather Forecast

Partly Cloudy
67.5°F
52°F
58°F
57%
0 in
0%
0%
10.1 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 7.76 μg/m3
PM10: 10.6 μg/m3
Carbon Monoxide: 165.69 μg/m3
Nitrogen Dioxide: 4.24 μg/m3
Sulphur Dioxide: 3.3 μg/m3
Ozone: 112.92 μg/m3

Astronomical

Sunrise: 7:31 AM
Sun Transit: 12:00 AM
Sunset: 7:37 PM
Daylight: 12 hrs 6 mins
Moonrise: 7:42 AM
Moon Transit: 1:31 AM
Moonset: 8:33 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

1:01 AM - 3:31 AM
1:01 AM - 3:31 AM

Minor Periods

8:03 PM - 9:33 PM
7:12 AM - 8:42 AM

Action Rating: 5 out of 5

Friday, March 20, 2026

Weather Forecast

Sunny
69.4°F
49.7°F
59.3°F
55%
0 in
0%
0%
9.4 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 11.34 μg/m3
PM10: 14.26 μg/m3
Carbon Monoxide: 217.7 μg/m3
Nitrogen Dioxide: 14.06 μg/m3
Sulphur Dioxide: 4.19 μg/m3
Ozone: 91.62 μg/m3

Astronomical

Sunrise: 7:30 AM
Sun Transit: 10:27 AM
Sunset: 7:38 PM
Daylight: 12 hrs 8 mins
Moonrise: 8:15 AM
Moon Transit: 2:52 PM
Moonset: 9:39 PM
Moon Phase: New
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

3:07 AM - 5:37 AM
2:22 PM - 4:52 PM

Minor Periods

9:09 PM - 10:39 PM
7:45 AM - 9:15 AM

Action Rating: 4 out of 5

Saturday, March 21, 2026

Weather Forecast

Partly Cloudy
77.7°F
55.2°F
63.1°F
57%
0 in
0%
0%
8.7 mph
0


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:29 AM
Sun Transit: 12:00 AM
Sunset: 7:38 PM
Daylight: 12 hrs 10 mins
Moonrise: 8:50 AM
Moon Transit: 3:45 PM
Moonset: 10:49 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

3:58 AM - 6:28 AM
3:15 PM - 5:45 PM

Minor Periods

10:19 PM - 11:49 PM
8:20 AM - 9:50 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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