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

Current Water Temperature

76.8°F

Measurement Time: Saturday, May 9, 2026, 5:30 AM EDT

Temperature Locations

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Local Points of Interest

Riverfront Park; Marco Lake

St. Johns River

Station Name: ST JOHNS RIVER BL MARCO LK AT JACKSONVILLE, FL
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet

Nearest Address:
1799 River Rd
Jacksonville, FL 32207
Duval County

GPS Coordinates: 30.30478056, -81.6601

Nearby Water Temperatures

St. Johns River, Jacksonville, FL (1.3 mi)
St. Johns River, Jacksonville, FL (3.7 mi)
St. Johns River, Jacksonville, FL (4.5 mi)
Cedar River, Jacksonville, FL (5 mi)
Pottsburg Creek, Jacksonville, FL (5.5 mi)
St. Johns River, Jacksonville, FL (7.9 mi)
St. Johns River, Jacksonville, FL (8.3 mi)
St. Johns River, Jacksonville, FL (8.3 mi)
Ortega River, Jacksonville, FL (8.3 mi)
St. Johns River, Orange Park, FL (8.7 mi)
Broward River, Jacksonville, FL (9.6 mi)
Trout River, Jacksonville, FL (10.8 mi)
Dunn Creek, Jacksonville, FL (11 mi)
Julington Creek, Jacksonville, FL (12.4 mi)
Clapboard Creek, Jacksonville, FL (12.9 mi)

Weather for Jacksonville, Florida

Current Weather

73°F
Overcast
Overcast
77.2°F
75.4°F
87%
W 3.4 mph
4.6 mph
72.5°F
68.9°F
0 in
100%
9 mi
1014 mbar
1.5

Five Day Weather Forecast

Heavy rain
Sat
H: 92°F
L: 68°F
Patchy rain nearby
Sun
H: 91°F
L: 69°F
Patchy rain nearby
Mon
H: 88°F
L: 71°F
Patchy rain nearby
Tue
H: 76°F
L: 66°F
Patchy rain nearby
Wed
H: 85°F
L: 68°F

Air Quality

AQI: 1 - Good
PM2.5: 9.35 μg/m3
PM10: 9.85 μg/m3
Carbon Monoxide: 138.85 μg/m3
Nitrogen Dioxide: 5.75 μg/m3
Sulphur Dioxide: 3.65 μg/m3
Ozone: 91 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 1:23 PM
Sunset: 8:10 PM
Daylight: 13 hrs 33 mins
Moonrise: 2:05 AM
Moon Transit: 7:26 AM
Moonset: 12:54 AM
Moon Phase: Last Quarter
Moon Illumination: 36.7%

Best Times for Fishing or Hunting

Major Periods

6:56 AM - 9:26 AM
8:28 PM - 10:58 PM

Minor Periods

12:24 AM - 1:54 PM
1:35 AM - 3:05 AM

Action Rating: 4 out of 5

Saturday, May 9, 2026

Weather Forecast

Heavy rain
91.6°F
68.4°F
75.1°F
81%
0.8 in
84%
0%
5.8 mph
8.2


Air Quality

AQI: 1 - Good
PM2.5: 11.44 μg/m3
PM10: 13.15 μg/m3
Carbon Monoxide: 182.97 μg/m3
Nitrogen Dioxide: 6.42 μg/m3
Sulphur Dioxide: 3.08 μg/m3
Ozone: 86.8 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 1:23 PM
Sunset: 8:10 PM
Daylight: 13 hrs 33 mins
Moonrise: 2:05 AM
Moon Transit: 7:26 AM
Moonset: 12:54 AM
Moon Phase: Last Quarter
Moon Illumination: 36.7%

Best Times for Fishing or Hunting

Major Periods

6:56 AM - 9:26 AM
8:28 PM - 10:58 PM

Minor Periods

12:24 AM - 1:54 PM
1:35 AM - 3:05 AM

Action Rating: 4 out of 5

Sunday, May 10, 2026

Weather Forecast

Patchy rain nearby
91°F
68.5°F
77.2°F
75%
0.1 in
87%
0%
8.1 mph
9.9


Air Quality

AQI: 1 - Good
PM2.5: 7.83 μg/m3
PM10: 8.7 μg/m3
Carbon Monoxide: 198.21 μg/m3
Nitrogen Dioxide: 6.74 μg/m3
Sulphur Dioxide: 2.51 μg/m3
Ozone: 71 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 1:23 PM
Sunset: 8:11 PM
Daylight: 13 hrs 34 mins
Moonrise: 2:37 AM
Moon Transit: 8:11 AM
Moonset: 1:53 PM
Moon Phase: Last Quarter
Moon Illumination: 26.2%

Best Times for Fishing or Hunting

Major Periods

7:41 AM - 10:11 AM
9:12 PM - 11:42 PM

Minor Periods

1:23 PM - 2:53 PM
2:07 AM - 3:37 AM

Action Rating: 2 out of 5

Monday, May 11, 2026

Weather Forecast

Patchy rain nearby
88.4°F
70.9°F
77.6°F
74%
0.11 in
84%
0%
13 mph
8.6


Air Quality

AQI: 1 - Good
PM2.5: 12.16 μg/m3
PM10: 12.83 μg/m3
Carbon Monoxide: 181.57 μg/m3
Nitrogen Dioxide: 10.98 μg/m3
Sulphur Dioxide: 3.34 μg/m3
Ozone: 76.4 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 1:23 PM
Sunset: 8:11 PM
Daylight: 13 hrs 36 mins
Moonrise: 3:07 AM
Moon Transit: 8:56 AM
Moonset: 2:53 PM
Moon Phase: Last Quarter
Moon Illumination: 16.9%

Best Times for Fishing or Hunting

Major Periods

8:26 AM - 10:56 AM
12:00 AM - 12:00 AM

Minor Periods

2:23 PM - 3:53 PM
2:37 AM - 4:07 AM

Action Rating: 2 out of 5

Tuesday, May 12, 2026

Weather Forecast

Patchy rain nearby
76.3°F
66.2°F
71°F
79%
0.06 in
87%
0%
12.1 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 10.71 μg/m3
PM10: 11.94 μg/m3
Carbon Monoxide: 174.94 μg/m3
Nitrogen Dioxide: 5.33 μg/m3
Sulphur Dioxide: 3.31 μg/m3
Ozone: 91.6 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:23 PM
Sunset: 8:12 PM
Daylight: 13 hrs 37 mins
Moonrise: 3:36 AM
Moon Transit: 9:41 AM
Moonset: 3:54 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.3%

Best Times for Fishing or Hunting

Major Periods

9:11 PM - 11:41 PM
9:11 AM - 11:41 AM

Minor Periods

3:24 PM - 4:54 PM
3:06 AM - 4:36 AM

Action Rating: 2 out of 5

Wednesday, May 13, 2026

Weather Forecast

Patchy rain nearby
85.3°F
67.8°F
73.1°F
78%
0.16 in
84%
0%
9.8 mph
5


Air Quality

AQI: 1 - Good
PM2.5: 10.7 μg/m3
PM10: 14.02 μg/m3
Carbon Monoxide: 162.56 μg/m3
Nitrogen Dioxide: 4.52 μg/m3
Sulphur Dioxide: 2.81 μg/m3
Ozone: 108.23 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 1:23 PM
Sunset: 8:13 PM
Daylight: 13 hrs 39 mins
Moonrise: 4:07 AM
Moon Transit: 12:00 AM
Moonset: 4:57 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.8%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

4:27 PM - 5:57 PM
3:37 AM - 5:07 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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