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

Current Water Temperature

57.0°F

Measurement Time: Saturday, January 17, 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

62.1°F
Partly cloudy
Partly cloudy
62.1°F
60.8°F
70%
SE 3.4 mph
6.6 mph
60.9°F
46.1°F
0 in
75%
9 mi
1019 mbar
0

Five Day Weather Forecast

Sunny
Sat
H: 70°F
L: 46°F
Moderate rain
Sun
H: 59°F
L: 35°F
Sunny
Mon
H: 53°F
L: 31°F
Sunny
Tue
H: 55°F
L: 37°F
Sunny
Wed
H: 52°F
L: 34°F

Air Quality

PM2.5: 7.25 μg/m3
PM10: 8.75 μg/m3
Carbon Monoxide: 184.85 μg/m3
Nitrogen Dioxide: 9.35 μg/m3
Sulphur Dioxide: 3.05 μg/m3
Ozone: 71 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:36 AM
Sunset: 5:50 PM
Daylight: 10 hrs 27 mins
Moonrise: 6:45 AM
Moon Transit: 11:44 AM
Moonset: 4:47 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

4:17 PM - 5:47 PM
6:15 AM - 7:45 AM

Action Rating: 5 out of 5

Freeze Watch issued January 17 at 5:28AM EST until January 19 at 9:00AM EST by NWS Jacksonville FL

Effective: Sat January 17, 2026, 5:28 AM
Expires: Sun January 18, 2026, 4:00 AM

* WHAT...Sub-freezing temperatures as low as 24 possible early on Monday morning. * WHERE...All of northeast and north central Florida and 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.


Freeze Watch issued January 17 at 5:28AM EST until January 19 at 9:00AM EST by NWS Jacksonville FL

Effective: Sat January 17, 2026, 5:28 AM
Expires: Sun January 18, 2026, 4:00 AM

* WHAT...Sub-freezing temperatures as low as 23 possible early on Monday morning. * WHERE...All of northeast and north central Florida and 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 17, 2026

Weather Forecast

Sunny
69.8°F
45.5°F
56.8°F
62%
0 in
0%
0%
6.5 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 9.52 μg/m3
PM10: 9.94 μg/m3
Carbon Monoxide: 220.7 μg/m3
Nitrogen Dioxide: 16.54 μg/m3
Sulphur Dioxide: 7.48 μg/m3
Ozone: 70.32 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:36 AM
Sunset: 5:50 PM
Daylight: 10 hrs 27 mins
Moonrise: 6:45 AM
Moon Transit: 11:44 AM
Moonset: 4:47 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

4:17 PM - 5:47 PM
6:15 AM - 7:45 AM

Action Rating: 5 out of 5

Sunday, January 18, 2026

Weather Forecast

Moderate rain
59.3°F
35.2°F
47.6°F
76%
0.29 in
78%
0%
17.9 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 8.23 μg/m3
PM10: 9.9 μg/m3
Carbon Monoxide: 196.63 μg/m3
Nitrogen Dioxide: 11.12 μg/m3
Sulphur Dioxide: 3.26 μg/m3
Ozone: 66.77 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:37 AM
Sunset: 5:51 PM
Daylight: 10 hrs 28 mins
Moonrise: 7:28 AM
Moon Transit: 12:35 AM
Moonset: 5:47 PM
Moon Phase: New
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

12:49 AM - 3:19 AM
12:05 AM - 2:35 PM

Minor Periods

5:17 PM - 6:47 PM
6:58 AM - 8:28 AM

Action Rating: 4 out of 5

Monday, January 19, 2026

Weather Forecast

Sunny
52.5°F
31°F
37.3°F
56%
0 in
0%
0%
8.9 mph
0


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:37 AM
Sunset: 5:52 PM
Daylight: 10 hrs 29 mins
Moonrise: 8:07 AM
Moon Transit: 1:24 PM
Moonset: 6:49 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

1:39 AM - 4:09 AM
12:54 AM - 3:24 PM

Minor Periods

6:19 PM - 7:49 PM
7:37 AM - 9:07 AM

Action Rating: 5 out of 5

Tuesday, January 20, 2026

Weather Forecast

Sunny
55°F
37.3°F
45°F
46%
0 in
0%
0%
10.3 mph
3


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:37 AM
Sunset: 5:53 PM
Daylight: 10 hrs 30 mins
Moonrise: 8:42 AM
Moon Transit: 2:12 PM
Moonset: 7:49 PM
Moon Phase: New
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

2:27 AM - 4:57 AM
1:42 PM - 4:12 PM

Minor Periods

7:19 PM - 8:49 PM
8:12 AM - 9:42 AM

Action Rating: 3 out of 5

Wednesday, January 21, 2026

Weather Forecast

Sunny
52.3°F
33.5°F
43.6°F
52%
0 in
0%
0%
8.1 mph
3


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:22 AM
Sun Transit: 12:38 AM
Sunset: 5:54 PM
Daylight: 10 hrs 32 mins
Moonrise: 9:12 AM
Moon Transit: 2:57 PM
Moonset: 8:50 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.1%

Best Times for Fishing or Hunting

Major Periods

3:13 AM - 5:43 AM
2:27 PM - 4:57 PM

Minor Periods

8:20 PM - 9:50 PM
8:42 AM - 10:12 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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