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

Current Water Temperature

87.1°F

Measurement Time: Monday, July 20, 2026, 4:30 PM EDT

Temperature Locations

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Local Points of Interest

Henry H Buckman Bridge; Plummers Cove; Mulberry Cove; Naval Air Station Jacksonville

St. Johns River

Station Name: ST.JOHNS RIVER BUCKMAN BRIDGE AT JACKSONVILLE,FL
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet

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

GPS Coordinates: 30.1902405, -81.6662048

Nearby Water Temperatures

St. Johns River, Orange Park, FL (1.9 mi)
Ortega River, Jacksonville, FL (3.9 mi)
St. Johns River, Jacksonville, FL (4.5 mi)
Julington Creek, Jacksonville, FL (5.7 mi)
Cedar River, Jacksonville, FL (7.7 mi)
St. Johns River, Jacksonville, FL (7.9 mi)
Durbin Creek, Jacksonville, FL (8.7 mi)
Pottsburg Creek, Jacksonville, FL (8.8 mi)
St. Johns River, Jacksonville, FL (9.1 mi)
St. Johns River, Jacksonville, FL (11.8 mi)
St. Johns River, Green Cove Springs, FL (13.1 mi)
St. Johns River, Green Cove Springs, FL (14.6 mi)
St. Johns River, Jacksonville, FL (15 mi)
St. Johns River, Jacksonville, FL (15 mi)
Broward River, Jacksonville, FL (17.5 mi)

Weather for Jacksonville, Florida

Current Weather

82°F
Partly cloudy
Partly cloudy
90.6°F
84.7°F
77%
S 6.7 mph
9.7 mph
79.2°F
74°F
0 in
75%
9 mi
1014 mbar
0

Five Day Weather Forecast

Sunny
Mon
H: 97°F
L: 78°F
Sunny
Tue
H: 100°F
L: 77°F
Sunny
Wed
H: 99°F
L: 79°F
Sunny
Thu
H: 101°F
L: 80°F
Partly Cloudy
Fri
H: 100°F
L: 76°F

Air Quality

AQI: 2 - Moderate
PM2.5: 12.3 μg/m3
PM10: 16.7 μg/m3
Carbon Monoxide: 135 μg/m3
Nitrogen Dioxide: 3.8 μg/m3
Sulphur Dioxide: 0.8 μg/m3
Ozone: 82 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 1:33 PM
Sunset: 8:28 PM
Daylight: 13 hrs 49 mins
Moonrise: 1:05 PM
Moon Transit: 6:48 PM
Moonset: 12:55 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

7:04 AM - 9:34 AM
6:18 PM - 8:48 PM

Minor Periods

12:35 AM - 2:05 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Small Craft Advisory issued July 20 at 2:17PM EDT until July 22 at 5:00AM EDT by NWS Jacksonville FL

Effective: Mon July 20, 2026, 2:17 PM
Expires: Tue July 21, 2026, 4:00 AM

* WHAT...South winds 15 to 25 kt with gusts up to 30 kt expected. * WHERE...All Southeast Georgia and Northeast Florida coastal waters from Altamaha Sound GA to Flagler Beach FL out to 60 NM. * WHEN...From 2 PM Tuesday to 5 AM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Monday, July 20, 2026

Weather Forecast

Sunny
97.3°F
78.3°F
83.5°F
78%
0.45 in
70%
0%
10.7 mph
10.6


Air Quality

AQI: 1 - Good
PM2.5: 10.44 μg/m3
PM10: 14.26 μg/m3
Carbon Monoxide: 149.67 μg/m3
Nitrogen Dioxide: 3.99 μg/m3
Sulphur Dioxide: 0.94 μg/m3
Ozone: 76.29 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 1:33 PM
Sunset: 8:28 PM
Daylight: 13 hrs 49 mins
Moonrise: 1:05 PM
Moon Transit: 6:48 PM
Moonset: 12:55 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

7:04 AM - 9:34 AM
6:18 PM - 8:48 PM

Minor Periods

12:35 AM - 2:05 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Tuesday, July 21, 2026

Weather Forecast

Sunny
99.5°F
77.4°F
87.3°F
61%
0 in
17%
0%
12.8 mph
10.9


Air Quality

AQI: 1 - Good
PM2.5: 11.8 μg/m3
PM10: 15.95 μg/m3
Carbon Monoxide: 134.13 μg/m3
Nitrogen Dioxide: 3.39 μg/m3
Sulphur Dioxide: 1.02 μg/m3
Ozone: 77 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 1:33 PM
Sunset: 8:27 PM
Daylight: 13 hrs 48 mins
Moonrise: 2:03 PM
Moon Transit: 7:32 PM
Moonset: 12:25 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

7:48 AM - 10:18 AM
7:02 PM - 9:32 PM

Minor Periods

1:33 PM - 3:03 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, July 22, 2026

Weather Forecast

Sunny
98.5°F
79.4°F
87.9°F
56%
0 in
3%
0%
11.2 mph
10.7


Air Quality

AQI: 1 - Good
PM2.5: 14.48 μg/m3
PM10: 20.43 μg/m3
Carbon Monoxide: 138.75 μg/m3
Nitrogen Dioxide: 4.69 μg/m3
Sulphur Dioxide: 0.92 μg/m3
Ozone: 68.79 μg/m3

Astronomical

Sunrise: 6:40 AM
Sun Transit: 1:33 PM
Sunset: 8:27 PM
Daylight: 13 hrs 47 mins
Moonrise: 3:01 PM
Moon Transit: 8:17 PM
Moonset: 12:56 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

8:33 AM - 11:03 AM
7:47 PM - 10:17 PM

Minor Periods

2:31 PM - 4:01 PM
12:26 AM - 1:56 AM

Action Rating: 2 out of 5

Thursday, July 23, 2026

Weather Forecast

Sunny
101°F
79.8°F
88.7°F
54%
0.05 in
57%
0%
11.6 mph
10.7


Air Quality

AQI: 2 - Moderate
PM2.5: 16.91 μg/m3
PM10: 26.18 μg/m3
Carbon Monoxide: 139.2 μg/m3
Nitrogen Dioxide: 4.92 μg/m3
Sulphur Dioxide: 0.74 μg/m3
Ozone: 61.83 μg/m3

Astronomical

Sunrise: 6:40 AM
Sun Transit: 1:33 PM
Sunset: 8:26 PM
Daylight: 13 hrs 46 mins
Moonrise: 3:58 PM
Moon Transit: 9:05 PM
Moonset: 1:30 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%

Best Times for Fishing or Hunting

Major Periods

9:20 AM - 11:50 AM
8:35 PM - 11:05 PM

Minor Periods

3:28 PM - 4:58 PM
1:00 AM - 2:30 AM

Action Rating: 3 out of 5

Friday, July 24, 2026

Weather Forecast

Partly Cloudy
100.4°F
76°F
84.3°F
68%
2.2 in
73%
0%
8.5 mph
10.9


Air Quality

AQI: 2 - Moderate
PM2.5: 15.87 μg/m3
PM10: 23.19 μg/m3
Carbon Monoxide: 145.56 μg/m3
Nitrogen Dioxide: 5.94 μg/m3
Sulphur Dioxide: 0.66 μg/m3
Ozone: 41.11 μg/m3

Astronomical

Sunrise: 6:41 AM
Sun Transit: 1:33 PM
Sunset: 8:26 PM
Daylight: 13 hrs 45 mins
Moonrise: 4:55 PM
Moon Transit: 9:55 PM
Moonset: 2:10 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

10:09 AM - 12:39 AM
9:25 PM - 11:55 PM

Minor Periods

4:25 PM - 5:55 PM
1:40 AM - 3:10 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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