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

Current Water Temperature

85.5°F

Measurement Time: Monday, August 3, 2026, 1:00 AM EDT

Temperature Locations

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Local Points of Interest

Dames Point Bridge; Henry H Buckman Bridge

St. Johns River

Station Name: ST JOHNS R DAMES POINT BRIDGE AT JACKSONVILLE, FL
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet

Nearest Address:
I-295 (Dames Point Bridge)
Jacksonville, FL 32257
Duval County

GPS Coordinates: 30.3860727, -81.55814749

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 (5.3 mi)
Pottsburg Creek, Jacksonville, FL (6.9 mi)
Broward River, Jacksonville, FL (7.7 mi)
St. Johns River, Jacksonville, FL (7.8 mi)
St. Johns River, Jacksonville, FL (7.8 mi)
St. Johns River, Jacksonville, FL (8.3 mi)
St. Johns River, Jacksonville, FL (10.5 mi)
Trout River, Jacksonville, FL (12.5 mi)
Cedar River, Jacksonville, FL (13 mi)
St. Johns River, Jacksonville, FL (15 mi)
St. Johns River, Orange Park, FL (16.3 mi)
Ortega River, Jacksonville, FL (16.4 mi)

Weather for Jacksonville, Florida

Current Weather

75.6°F
Clear
Clear
80.2°F
80.2°F
93%
SSW 8.7 mph
12.7 mph
75.6°F
73.4°F
0 in
11%
1 mi
1012 mbar
0

Five Day Weather Forecast

Partly Cloudy
Mon
H: 86°F
L: 74°F
Partly Cloudy
Tue
H: 88°F
L: 76°F
Sunny
Wed
H: 92°F
L: 74°F
Sunny
Thu
H: 93°F
L: 77°F
Patchy rain nearby
Fri
H: 93°F
L: 79°F

Air Quality

AQI: 1 - Good
PM2.5: 2.5 μg/m3
PM10: 2.9 μg/m3
Carbon Monoxide: 110 μg/m3
Nitrogen Dioxide: 4.3 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 51 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 1:32 PM
Sunset: 8:19 PM
Daylight: 13 hrs 33 mins
Moonrise: 11:08 PM
Moon Transit: 12:00 AM
Moonset: 11:26 AM
Moon Phase: Waning Gibbous
Moon Illumination: 65.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
6:00 PM - 8:30 PM

Minor Periods

12:00 AM - 12:00 AM
10:56 AM - 12:26 AM

Action Rating: 3 out of 5

Small Craft Advisory issued August 2 at 2:32PM EDT until August 3 at 11:00AM EDT by NWS Jacksonville FL

Effective: Sun August 2, 2026, 2:32 PM
Expires: Mon August 3, 2026, 11:00 AM

* WHAT...Southwest winds 15 to 25 kt with gusts up to 30 kt. * WHERE...All Southeast Georgia coastal waters from Altamaha Sound GA to Fernandina Beach FL out to 60 NM and Coastal waters from Fernandina Beach FL to St Augustine FL out to 60 NM. * WHEN...Until 11 AM EDT Monday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Monday, August 3, 2026

Weather Forecast

Partly Cloudy
86.4°F
74.3°F
78.6°F
84%
0.55 in
81%
0%
14.8 mph
9.7


Air Quality

AQI: 1 - Good
PM2.5: 2.84 μg/m3
PM10: 3.31 μg/m3
Carbon Monoxide: 122.58 μg/m3
Nitrogen Dioxide: 3.58 μg/m3
Sulphur Dioxide: 0.58 μg/m3
Ozone: 57.88 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 1:32 PM
Sunset: 8:19 PM
Daylight: 13 hrs 33 mins
Moonrise: 11:08 PM
Moon Transit: 12:00 AM
Moonset: 11:26 AM
Moon Phase: Waning Gibbous
Moon Illumination: 65.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
6:00 PM - 8:30 PM

Minor Periods

12:00 AM - 12:00 AM
10:56 AM - 12:26 AM

Action Rating: 3 out of 5

Tuesday, August 4, 2026

Weather Forecast

Partly Cloudy
88.1°F
75.8°F
80.7°F
69%
0.11 in
59%
0%
10.3 mph
9.5


Air Quality

AQI: 1 - Good
PM2.5: 4.98 μg/m3
PM10: 6.05 μg/m3
Carbon Monoxide: 135.63 μg/m3
Nitrogen Dioxide: 4.23 μg/m3
Sulphur Dioxide: 0.75 μg/m3
Ozone: 71.67 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 1:32 PM
Sunset: 8:18 PM
Daylight: 13 hrs 31 mins
Moonrise: 12:08 AM
Moon Transit: 5:43 AM
Moonset: 12:28 AM
Moon Phase: Last Quarter
Moon Illumination: 54.6%

Best Times for Fishing or Hunting

Major Periods

5:13 AM - 7:43 AM
6:47 PM - 9:17 PM

Minor Periods

11:58 AM - 1:28 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, August 5, 2026

Weather Forecast

Sunny
92°F
74°F
81.7°F
68%
0.03 in
36%
0%
12.3 mph
8.7


Air Quality

AQI: 1 - Good
PM2.5: 7.87 μg/m3
PM10: 10.1 μg/m3
Carbon Monoxide: 147.17 μg/m3
Nitrogen Dioxide: 5.61 μg/m3
Sulphur Dioxide: 0.89 μg/m3
Ozone: 71.5 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 1:32 PM
Sunset: 8:17 PM
Daylight: 13 hrs 30 mins
Moonrise: 12:40 AM
Moon Transit: 6:32 AM
Moonset: 1:33 PM
Moon Phase: Last Quarter
Moon Illumination: 43.2%

Best Times for Fishing or Hunting

Major Periods

6:02 AM - 8:32 AM
7:38 PM - 10:08 PM

Minor Periods

1:03 PM - 2:33 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, August 6, 2026

Weather Forecast

Sunny
92.8°F
77.2°F
84.7°F
70%
0.23 in
65%
0%
12.1 mph
8.4


Air Quality

AQI: 1 - Good
PM2.5: 8.93 μg/m3
PM10: 11.8 μg/m3
Carbon Monoxide: 138.64 μg/m3
Nitrogen Dioxide: 6.85 μg/m3
Sulphur Dioxide: 1.12 μg/m3
Ozone: 64.17 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 1:32 PM
Sunset: 8:16 PM
Daylight: 13 hrs 28 mins
Moonrise: 12:19 AM
Moon Transit: 7:26 AM
Moonset: 2:42 PM
Moon Phase: Last Quarter
Moon Illumination: 32.3%

Best Times for Fishing or Hunting

Major Periods

6:56 AM - 9:26 AM
8:34 PM - 11:04 PM

Minor Periods

2:12 PM - 3:42 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Friday, August 7, 2026

Weather Forecast

Patchy rain nearby
92.5°F
78.9°F
84.6°F
70%
0.03 in
40%
0%
10.3 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 7.24 μg/m3
PM10: 11.34 μg/m3
Carbon Monoxide: 116.89 μg/m3
Nitrogen Dioxide: 6.17 μg/m3
Sulphur Dioxide: 0.67 μg/m3
Ozone: 34.11 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 1:32 PM
Sunset: 8:15 PM
Daylight: 13 hrs 27 mins
Moonrise: 1:04 AM
Moon Transit: 8:24 AM
Moonset: 3:51 PM
Moon Phase: Last Quarter
Moon Illumination: 22.2%

Best Times for Fishing or Hunting

Major Periods

7:54 AM - 10:24 AM
12:00 AM - 12:00 AM

Minor Periods

3:21 PM - 4:51 PM
12:34 AM - 2:04 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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