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

Current Water Temperature

65.7°F

Measurement Time: Saturday, January 10, 2026, 3:30 PM EST

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

70°F
Clear
Clear
70°F
71.4°F
66%
WSW 6.7 mph
12 mph
70.6°F
58.6°F
0 in
0%
9 mi
1020 mbar
0

Five Day Weather Forecast

Sunny
Sat
H: 83°F
L: 62°F
Patchy rain nearby
Sun
H: 67°F
L: 52°F
Cloudy
Mon
H: 50°F
L: 41°F
Partly Cloudy
Tue
H: 62°F
L: 43°F
Partly Cloudy
Wed
H: 60°F
L: 52°F

Air Quality

AQI: 2 - Moderate
PM2.5: 7.35 μg/m3
PM10: 8.05 μg/m3
Carbon Monoxide: 166.85 μg/m3
Nitrogen Dioxide: 10.05 μg/m3
Sulphur Dioxide: 2.55 μg/m3
Ozone: 62 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:34 AM
Sunset: 5:44 PM
Daylight: 10 hrs 20 mins
Moonrise: 12:20 AM
Moon Transit: 6:08 AM
Moonset: 11:50 AM
Moon Phase: Last Quarter
Moon Illumination: 46.5%

Best Times for Fishing or Hunting

Major Periods

5:38 AM - 8:08 AM
7:07 PM - 9:37 PM

Minor Periods

11:20 AM - 12:50 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Freeze Watch issued January 10 at 12:26PM EST until January 12 at 8:00AM EST by NWS Jacksonville FL

Effective: Sat January 10, 2026, 12:26 PM
Expires: Sun January 11, 2026, 4:00 AM

* WHAT...Sub-freezing temperatures as low as 30 possible. * WHERE...A portion of southeast Georgia. * WHEN...From late Sunday night through Monday morning. * IMPACTS...Appropriate action should be taken to ensure tender vegetation and outdoor pets have adequate protection from the cold temperatures. Young children, the elderly and the homeless are especially vulnerable to the cold. Take measures to protect them.

Take steps now to protect tender plants from the cold.
Saturday, January 10, 2026

Weather Forecast

Sunny
82.6°F
62.4°F
71°F
75%
0 in
0%
0%
8.9 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 7.63 μg/m3
PM10: 9.09 μg/m3
Carbon Monoxide: 183.05 μg/m3
Nitrogen Dioxide: 11.81 μg/m3
Sulphur Dioxide: 3.71 μg/m3
Ozone: 67.12 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:34 AM
Sunset: 5:44 PM
Daylight: 10 hrs 20 mins
Moonrise: 12:20 AM
Moon Transit: 6:08 AM
Moonset: 11:50 AM
Moon Phase: Last Quarter
Moon Illumination: 46.5%

Best Times for Fishing or Hunting

Major Periods

5:38 AM - 8:08 AM
7:07 PM - 9:37 PM

Minor Periods

11:20 AM - 12:50 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, January 11, 2026

Weather Forecast

Patchy rain nearby
66.6°F
52.2°F
61.8°F
69%
0.04 in
80%
0%
11.6 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 6.72 μg/m3
PM10: 7.23 μg/m3
Carbon Monoxide: 186.01 μg/m3
Nitrogen Dioxide: 9.09 μg/m3
Sulphur Dioxide: 3.54 μg/m3
Ozone: 67.12 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:34 AM
Sunset: 5:45 PM
Daylight: 10 hrs 21 mins
Moonrise: 1:15 AM
Moon Transit: 6:50 AM
Moonset: 12:20 AM
Moon Phase: Last Quarter
Moon Illumination: 35.3%

Best Times for Fishing or Hunting

Major Periods

6:20 AM - 8:50 AM
7:50 PM - 10:20 PM

Minor Periods

11:50 AM - 1:20 PM
12:45 AM - 2:15 AM

Action Rating: 2 out of 5

Monday, January 12, 2026

Weather Forecast

Cloudy
50.4°F
40.8°F
46.5°F
54%
0 in
0%
0%
10.3 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 6.11 μg/m3
PM10: 7.25 μg/m3
Carbon Monoxide: 182.01 μg/m3
Nitrogen Dioxide: 5.97 μg/m3
Sulphur Dioxide: 4.66 μg/m3
Ozone: 77.68 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:35 AM
Sunset: 5:46 PM
Daylight: 10 hrs 22 mins
Moonrise: 2:11 AM
Moon Transit: 7:33 AM
Moonset: 12:51 AM
Moon Phase: Last Quarter
Moon Illumination: 25.0%

Best Times for Fishing or Hunting

Major Periods

7:03 AM - 9:33 AM
8:35 PM - 11:05 PM

Minor Periods

12:21 AM - 1:51 PM
1:41 AM - 3:11 AM

Action Rating: 3 out of 5

Tuesday, January 13, 2026

Weather Forecast

Partly Cloudy
61.5°F
42.6°F
50.2°F
60%
0 in
0%
0%
6 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 9.51 μg/m3
PM10: 11.64 μg/m3
Carbon Monoxide: 217.51 μg/m3
Nitrogen Dioxide: 10.91 μg/m3
Sulphur Dioxide: 5.61 μg/m3
Ozone: 68.6 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:35 AM
Sunset: 5:47 PM
Daylight: 10 hrs 23 mins
Moonrise: 3:08 AM
Moon Transit: 8:19 AM
Moonset: 1:27 PM
Moon Phase: Waning Crescent
Moon Illumination: 15.9%

Best Times for Fishing or Hunting

Major Periods

7:49 AM - 10:19 AM
9:22 PM - 11:52 PM

Minor Periods

12:57 AM - 2:27 PM
2:38 AM - 4:08 AM

Action Rating: 3 out of 5

Wednesday, January 14, 2026

Weather Forecast

Partly Cloudy
59.6°F
51.6°F
54.6°F
55%
0 in
0%
0%
8.3 mph
0.3


Air Quality

AQI: 2 - Moderate
PM2.5: 21.19 μg/m3
PM10: 24.6 μg/m3
Carbon Monoxide: 324.45 μg/m3
Nitrogen Dioxide: 33.6 μg/m3
Sulphur Dioxide: 8.94 μg/m3
Ozone: 43 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:35 AM
Sunset: 5:48 PM
Daylight: 10 hrs 24 mins
Moonrise: 4:05 AM
Moon Transit: 9:08 AM
Moonset: 2:08 PM
Moon Phase: Waning Crescent
Moon Illumination: 8.5%

Best Times for Fishing or Hunting

Major Periods

8:38 AM - 11:08 AM
12:00 AM - 12:00 AM

Minor Periods

1:38 PM - 3:08 PM
3:35 AM - 5:05 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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