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

Current Water Temperature

88.3°F

Measurement Time: Wednesday, July 8, 2026, 5:30 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

90°F
Partly cloudy
Partly cloudy
104.4°F
96.6°F
64%
WSW 4.3 mph
7.7 mph
86.9°F
75.4°F
0 in
75%
9 mi
1018 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 101°F
L: 77°F
Sunny
Thu
H: 102°F
L: 78°F
Sunny
Fri
H: 102°F
L: 79°F
Partly Cloudy
Sat
H: 101°F
L: 75°F
Sunny
Sun
H: 99°F
L: 75°F

Air Quality

AQI: 1 - Good
PM2.5: 6.1 μg/m3
PM10: 8.1 μg/m3
Carbon Monoxide: 159 μg/m3
Nitrogen Dioxide: 4.6 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 61 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 1:31 PM
Sunset: 8:32 PM
Daylight: 14 hrs mins
Moonrise: 1:06 AM
Moon Transit: 7:47 AM
Moonset: 2:37 PM
Moon Phase: Last Quarter
Moon Illumination: 26.8%

Best Times for Fishing or Hunting

Major Periods

7:17 AM - 9:47 AM
8:51 PM - 11:21 PM

Minor Periods

2:07 PM - 3:37 PM
12:36 AM - 2:06 AM

Action Rating: 3 out of 5

Special Marine Warning issued July 8 at 7:41PM EDT until July 8 at 8:45PM EDT by NWS Jacksonville FL

Effective: Wed July 8, 2026, 7:41 PM
Expires: Wed July 8, 2026, 8:45 PM

SMWJAX The National Weather Service in Jacksonville has issued a * Special Marine Warning for... Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM... * Until 845 PM EDT. * At 741 PM EDT, a strong thunderstorm was located 13 nm south of Jekyll Island, or 19 nm south of St. Simons Island, moving east at 10 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... High Point and Cumberland Island.

Move to safe harbor until hazardous weather passes. If your vessel is caught offshore, immediately secure for heavy weather. Ensure all crew members are wearing USCG approved Type I life jackets and nonessential crew are below decks. Deploy jack lines and harnesses if available. Check life saving equipment, including batteries on handheld radios, for readiness.


Special Marine Warning issued July 8 at 7:58PM EDT until July 8 at 8:45PM EDT by NWS Jacksonville FL

Effective: Wed July 8, 2026, 7:58 PM
Expires: Wed July 8, 2026, 8:45 PM

For the following areas... Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM... At 758 PM EDT, a strong thunderstorm was located 12 nm south of Jekyll Island, or 18 nm south of St. Simons Island, moving east at 10 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. The strong thunderstorm will remain over mainly open waters.

Move to safe harbor until hazardous weather passes. If your vessel is caught offshore, immediately secure for heavy weather. Ensure all crew members are wearing USCG approved Type I life jackets and nonessential crew are below decks. Deploy jack lines and harnesses if available. Check life saving equipment, including batteries on handheld radios, for readiness.
Wednesday, July 8, 2026

Weather Forecast

Sunny
100.6°F
77.2°F
87.8°F
66%
0 in
5%
0%
11.2 mph
10.8


Air Quality

AQI: 1 - Good
PM2.5: 5.93 μg/m3
PM10: 7.66 μg/m3
Carbon Monoxide: 127.92 μg/m3
Nitrogen Dioxide: 4.65 μg/m3
Sulphur Dioxide: 0.55 μg/m3
Ozone: 62.96 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 1:31 PM
Sunset: 8:32 PM
Daylight: 14 hrs mins
Moonrise: 1:06 AM
Moon Transit: 7:47 AM
Moonset: 2:37 PM
Moon Phase: Last Quarter
Moon Illumination: 26.8%

Best Times for Fishing or Hunting

Major Periods

7:17 AM - 9:47 AM
8:51 PM - 11:21 PM

Minor Periods

2:07 PM - 3:37 PM
12:36 AM - 2:06 AM

Action Rating: 3 out of 5

Thursday, July 9, 2026

Weather Forecast

Sunny
101.8°F
78.1°F
87.7°F
58%
0.02 in
36%
0%
8.7 mph
10.9


Air Quality

AQI: 1 - Good
PM2.5: 7.99 μg/m3
PM10: 11.46 μg/m3
Carbon Monoxide: 124.58 μg/m3
Nitrogen Dioxide: 4.07 μg/m3
Sulphur Dioxide: 0.57 μg/m3
Ozone: 64.13 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:32 PM
Sunset: 8:32 PM
Daylight: 13 hrs 59 mins
Moonrise: 1:41 AM
Moon Transit: 8:38 AM
Moonset: 3:44 PM
Moon Phase: Last Quarter
Moon Illumination: 17.4%

Best Times for Fishing or Hunting

Major Periods

8:08 AM - 10:38 AM
12:00 AM - 12:00 AM

Minor Periods

3:14 PM - 4:44 PM
1:11 AM - 2:41 AM

Action Rating: 2 out of 5

Friday, July 10, 2026

Weather Forecast

Sunny
102.2°F
78.9°F
87.1°F
59%
0.08 in
57%
0%
11.4 mph
10.6


Air Quality

AQI: 1 - Good
PM2.5: 13.83 μg/m3
PM10: 23.7 μg/m3
Carbon Monoxide: 139 μg/m3
Nitrogen Dioxide: 4.69 μg/m3
Sulphur Dioxide: 0.61 μg/m3
Ozone: 65.33 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:32 PM
Sunset: 8:31 PM
Daylight: 13 hrs 58 mins
Moonrise: 2:23 AM
Moon Transit: 9:35 AM
Moonset: 4:56 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:05 AM - 11:35 AM

Minor Periods

4:26 PM - 5:56 PM
1:53 AM - 3:23 AM

Action Rating: 2 out of 5

Saturday, July 11, 2026

Weather Forecast

Partly Cloudy
100.6°F
74.6°F
86.3°F
55%
0.49 in
64%
0%
9.6 mph
10.4


Air Quality

AQI: 2 - Moderate
PM2.5: 17.05 μg/m3
PM10: 26.91 μg/m3
Carbon Monoxide: 124.1 μg/m3
Nitrogen Dioxide: 5.23 μg/m3
Sulphur Dioxide: 0.62 μg/m3
Ozone: 73.67 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 1:32 PM
Sunset: 8:31 PM
Daylight: 13 hrs 58 mins
Moonrise: 3:13 AM
Moon Transit: 10:38 AM
Moonset: 6:08 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:08 AM - 12:38 AM

Minor Periods

5:38 PM - 7:08 PM
2:43 AM - 4:13 AM

Action Rating: 2 out of 5

Sunday, July 12, 2026

Weather Forecast

Sunny
99.3°F
74.6°F
83.9°F
63%
0.08 in
57%
0%
9.4 mph
10.5


Air Quality

AQI: 1 - Good
PM2.5: 10.12 μg/m3
PM10: 14.98 μg/m3
Carbon Monoxide: 143 μg/m3
Nitrogen Dioxide: 6.11 μg/m3
Sulphur Dioxide: 0.43 μg/m3
Ozone: 53.22 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 1:32 PM
Sunset: 8:31 PM
Daylight: 13 hrs 57 mins
Moonrise: 4:13 AM
Moon Transit: 11:44 AM
Moonset: 7:15 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:14 AM - 1:44 PM

Minor Periods

6:45 PM - 8:15 PM
3:43 AM - 5:13 AM

Action Rating: 3 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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