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

Current Water Temperature

70.5°F

Measurement Time: Tuesday, March 31, 2026, 1:30 PM 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

79°F
Partly cloudy
Partly cloudy
81.4°F
81°F
56%
ESE 10.3 mph
11.9 mph
78.5°F
65.8°F
0 in
75%
9 mi
1023 mbar
0.8

Five Day Weather Forecast

Sunny
Tue
H: 81°F
L: 60°F
Sunny
Wed
H: 85°F
L: 63°F
Heavy rain
Thu
H: 79°F
L: 66°F
Partly Cloudy
Fri
H: 80°F
L: 70°F
Sunny
Sat
H: 85°F
L: 65°F

Air Quality

AQI: 1 - Good
PM2.5: 9.35 μg/m3
PM10: 12.95 μg/m3
Carbon Monoxide: 184.85 μg/m3
Nitrogen Dioxide: 8.25 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 83 μg/m3

Astronomical

Sunrise: 7:17 AM
Sun Transit: 1:30 PM
Sunset: 7:45 PM
Daylight: 12 hrs 28 mins
Moonrise: 6:41 PM
Moon Transit: 12:06 AM
Moonset: 6:23 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:06 PM - 3:36 PM

Minor Periods

6:11 PM - 7:41 PM
5:53 AM - 7:23 AM

Action Rating: 4 out of 5

Rip Current Statement issued March 31 at 2:30AM EDT until March 31 at 8:00PM EDT by NWS Jacksonville FL

Effective: Tue March 31, 2026, 2:30 AM
Expires: Tue March 31, 2026, 8:00 PM

* WHAT...Dangerous rip currents. * WHERE...Northeast Florida Beaches. * WHEN...Through this evening. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water.

Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.
Tuesday, March 31, 2026

Weather Forecast

Sunny
81°F
59.7°F
69.1°F
81%
0 in
0%
0%
11.6 mph
9


Air Quality

AQI: 1 - Good
PM2.5: 11.41 μg/m3
PM10: 16.05 μg/m3
Carbon Monoxide: 180.05 μg/m3
Nitrogen Dioxide: 7.53 μg/m3
Sulphur Dioxide: 2.78 μg/m3
Ozone: 95.16 μg/m3

Astronomical

Sunrise: 7:17 AM
Sun Transit: 1:30 PM
Sunset: 7:45 PM
Daylight: 12 hrs 28 mins
Moonrise: 6:41 PM
Moon Transit: 12:06 AM
Moonset: 6:23 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:06 PM - 3:36 PM

Minor Periods

6:11 PM - 7:41 PM
5:53 AM - 7:23 AM

Action Rating: 4 out of 5

Wednesday, April 1, 2026

Weather Forecast

Sunny
84.7°F
62.8°F
71.4°F
75%
0 in
0%
0%
11.4 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 11.17 μg/m3
PM10: 15.63 μg/m3
Carbon Monoxide: 175.81 μg/m3
Nitrogen Dioxide: 7.29 μg/m3
Sulphur Dioxide: 2.9 μg/m3
Ozone: 92.36 μg/m3

Astronomical

Sunrise: 7:16 AM
Sun Transit: 1:30 PM
Sunset: 7:45 PM
Daylight: 12 hrs 30 mins
Moonrise: 7:38 PM
Moon Transit: 12:49 AM
Moonset: 6:50 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:19 AM - 2:49 AM
1:48 PM - 4:18 PM

Minor Periods

7:08 PM - 8:38 PM
6:20 AM - 7:50 AM

Action Rating: 3 out of 5

Thursday, April 2, 2026

Weather Forecast

Heavy rain
79.2°F
66.2°F
70.7°F
79%
1.76 in
84%
0%
13.4 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 8.79 μg/m3
PM10: 12.9 μg/m3
Carbon Monoxide: 165.57 μg/m3
Nitrogen Dioxide: 5.62 μg/m3
Sulphur Dioxide: 2.3 μg/m3
Ozone: 89.84 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 1:30 PM
Sunset: 7:46 PM
Daylight: 12 hrs 32 mins
Moonrise: 8:36 PM
Moon Transit: 1:31 AM
Moonset: 7:18 AM
Moon Phase: Full
Moon Illumination: 99.5%

Best Times for Fishing or Hunting

Major Periods

1:01 AM - 3:31 AM
2:31 PM - 5:01 PM

Minor Periods

8:06 PM - 9:36 PM
6:48 AM - 8:18 AM

Action Rating: 5 out of 5

Friday, April 3, 2026

Weather Forecast

Partly Cloudy
80.2°F
69.6°F
73.6°F
74%
0 in
0%
0%
11.4 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 9.95 μg/m3
PM10: 14.69 μg/m3
Carbon Monoxide: 153.14 μg/m3
Nitrogen Dioxide: 4.87 μg/m3
Sulphur Dioxide: 2.38 μg/m3
Ozone: 92.24 μg/m3

Astronomical

Sunrise: 7:13 AM
Sun Transit: 1:29 PM
Sunset: 7:47 PM
Daylight: 12 hrs 34 mins
Moonrise: 9:33 PM
Moon Transit: 2:14 AM
Moonset: 7:47 AM
Moon Phase: Full
Moon Illumination: 96.6%

Best Times for Fishing or Hunting

Major Periods

1:44 AM - 4:14 AM
3:15 PM - 5:45 PM

Minor Periods

9:03 PM - 10:33 PM
7:17 AM - 8:47 AM

Action Rating: 4 out of 5

Saturday, April 4, 2026

Weather Forecast

Sunny
84.7°F
64.9°F
73.5°F
69%
0 in
0%
0%
13.9 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 9.43 μg/m3
PM10: 13.82 μg/m3
Carbon Monoxide: 148.02 μg/m3
Nitrogen Dioxide: 7.3 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 62.08 μg/m3

Astronomical

Sunrise: 7:12 AM
Sun Transit: 1:29 PM
Sunset: 7:47 PM
Daylight: 12 hrs 35 mins
Moonrise: 10:32 PM
Moon Transit: 2:58 AM
Moonset: 8:19 AM
Moon Phase: Full
Moon Illumination: 91.3%

Best Times for Fishing or Hunting

Major Periods

2:28 AM - 4:58 AM
4:00 PM - 6:30 PM

Minor Periods

10:02 PM - 11:32 PM
7:49 AM - 9:19 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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