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

Current Water Temperature

61.2°F

Measurement Time: Monday, February 23, 2026, 10:54 AM EST

Today's Tides

 High: February 23, 12:45 AM, 3.4 ft
Low: February 23, 7:39 AM, -0.2 ft
 High: February 23, 1:14 PM, 2.9 ft
Low: February 23, 7:33 PM, -0.5 ft

Temperature Locations

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Local Points of Interest

Dames Point; Blount Island

St. Johns River

Station Name: Dames Point
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 30 feet

Sensor Depth: -3 feet

Nearest Address:
I-295 S
Jacksonville, FL 32226
Duval County

GPS Coordinates: 30.387222, -81.559166

Nearby Water Temperatures

St. Johns River, Jacksonville, FL (0.1 mi)
St. Johns River, Jacksonville, FL (3.9 mi)
Clapboard Creek, Jacksonville, FL (4.8 mi)
Dunn Creek, Jacksonville, FL (5.2 mi)
Pottsburg Creek, Jacksonville, FL (7 mi)
Broward River, Jacksonville, FL (7.6 mi)
St. Johns River, Jacksonville, FL (7.8 mi)
St. Johns River, Jacksonville, FL (7.9 mi)
St. Johns River, Jacksonville, FL (8.3 mi)
St. Johns River, Jacksonville, FL (10.5 mi)
Trout River, Jacksonville, FL (12.4 mi)
Cedar River, Jacksonville, FL (13 mi)
St. Johns River, Jacksonville, FL (15 mi)
St. Johns River, Orange Park, FL (16.4 mi)
Ortega River, Jacksonville, FL (16.4 mi)

Weather for Jacksonville, Florida

Current Weather

43°F
Sunny
Sunny
36.2°F
43.4°F
41%
NW 13.2 mph
15.2 mph
36.3°F
18.3°F
0 in
0%
9 mi
1022 mbar
4.6

Five Day Weather Forecast

Sunny
Mon
H: 56°F
L: 37°F
Sunny
Tue
H: 55°F
L: 35°F
Overcast
Wed
H: 64°F
L: 41°F
Sunny
Thu
H: 78°F
L: 51°F
Moderate rain
Fri
H: 69°F
L: 59°F

Air Quality

AQI: 1 - Good
PM2.5: 3.85 μg/m3
PM10: 3.95 μg/m3
Carbon Monoxide: 181.85 μg/m3
Nitrogen Dioxide: 2.45 μg/m3
Sulphur Dioxide: 3.65 μg/m3
Ozone: 94 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 12:39 AM
Sunset: 6:21 PM
Daylight: 11 hrs 22 mins
Moonrise: 10:33 AM
Moon Transit: 5:47 PM
Moonset: 12:01 AM
Moon Phase: First Quarter
Moon Illumination: 39.8%

Best Times for Fishing or Hunting

Major Periods

5:59 AM - 8:29 AM
5:17 PM - 7:47 PM

Minor Periods

10:03 AM - 11:33 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Red Flag Warning issued February 23 at 1:14AM EST until February 23 at 6:00PM EST by NWS Jacksonville FL

Effective: Mon February 23, 2026, 1:14 AM
Expires: Mon February 23, 2026, 6:00 PM

The National Weather Service in Jacksonville has issued a Red Flag Warning for critically low humidity values, strong northwesterly winds, and ongoing extreme drought conditions, which is in effect from 1 PM this afternoon to 6 PM EST this evening. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...In Florida, Baker, Inland Nassau, Union, Bradford, Gilchrist, Inland Flagler, Eastern Clay, Eastern Alachua, Eastern Putnam, Coastal Flagler, Eastern Marion, Western Clay, Western Alachua, Western Putnam, Central Marion, Southeast Coastal St. Johns, Western Marion, Western Duval, Northern Inland St. Johns, Southern Inland St. Johns and Western St. Johns. * TIMING...1 PM to 6 PM Monday. * WINDS...Northwest 15 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 25 percent. * TEMPERATURES...Up to 55. * IMPACTS...Ongoing wildfires will become difficult to contain and newly ignited fires may exhibit erratic fire behavior. Rapid rates of wildfire spread is expected.

A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and ongoing drought conditions can contribute to extreme fire behavior.


Cold Weather Advisory issued February 23 at 12:22AM EST until February 24 at 9:00AM EST by NWS Jacksonville FL

Effective: Mon February 23, 2026, 12:22 AM
Expires: Mon February 23, 2026, 9:15 AM

* WHAT...For the first Cold Weather Advisory, very cold wind chills as low as 23 expected. For the Freeze Warning, sub-freezing temperatures as low as 26 expected. For the second Cold Weather Advisory, very cold wind chills as low as 20 expected. * WHERE...Portions of northeast and northern Florida. * WHEN...For the first Cold Weather Advisory, from 4 AM to 9 AM EST this morning. For the Freeze Warning, from midnight tonight to 9 AM EST Tuesday. For the second Cold Weather Advisory, from 2 AM to 9 AM EST Tuesday. * IMPACTS...The cold wind chills as low as 25 degrees could result in hypothermia or frostbite if precautions are not taken. Wind chill values can lead to hypothermia with prolonged exposure. 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.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold. Take steps now to protect tender plants from the cold.


Freeze Warning issued February 23 at 12:22AM EST until February 24 at 9:00AM EST by NWS Jacksonville FL

Effective: Mon February 23, 2026, 12:22 AM
Expires: Mon February 23, 2026, 9:15 AM

* WHAT...For the first Cold Weather Advisory, very cold wind chills as low as 23 expected. For the Freeze Warning, sub-freezing temperatures as low as 26 expected. For the second Cold Weather Advisory, very cold wind chills as low as 20 expected. * WHERE...Portions of northeast and northern Florida. * WHEN...For the first Cold Weather Advisory, from 4 AM to 9 AM EST this morning. For the Freeze Warning, from midnight tonight to 9 AM EST Tuesday. For the second Cold Weather Advisory, from 2 AM to 9 AM EST Tuesday. * IMPACTS...The cold wind chills as low as 25 degrees could result in hypothermia or frostbite if precautions are not taken. Wind chill values can lead to hypothermia with prolonged exposure. 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.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold. Take steps now to protect tender plants from the cold.


Cold Weather Advisory issued February 23 at 12:22AM EST until February 23 at 9:00AM EST by NWS Jacksonville FL

Effective: Mon February 23, 2026, 12:22 AM
Expires: Mon February 23, 2026, 9:15 AM

* WHAT...For the first Cold Weather Advisory, very cold wind chills as low as 23 expected. For the Freeze Warning, sub-freezing temperatures as low as 26 expected. For the second Cold Weather Advisory, very cold wind chills as low as 20 expected. * WHERE...Portions of northeast and northern Florida. * WHEN...For the first Cold Weather Advisory, from 4 AM to 9 AM EST this morning. For the Freeze Warning, from midnight tonight to 9 AM EST Tuesday. For the second Cold Weather Advisory, from 2 AM to 9 AM EST Tuesday. * IMPACTS...The cold wind chills as low as 25 degrees could result in hypothermia or frostbite if precautions are not taken. Wind chill values can lead to hypothermia with prolonged exposure. 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.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold. Take steps now to protect tender plants from the cold.


Freeze Warning issued February 23 at 12:22AM EST until February 23 at 9:00AM EST by NWS Jacksonville FL

Effective: Mon February 23, 2026, 12:22 AM
Expires: Mon February 23, 2026, 9:15 AM

* WHAT...For the first Freeze Warning, sub-freezing temperatures as low as 30. For the first Cold Weather Advisory, very cold wind chills as low as 20 expected. For the second Freeze Warning, sub-freezing temperatures as low as 26 expected, a hard freeze is possible for some locations. For the second Cold Weather Advisory, very cold wind chills as low as 20 expected. * WHERE...Baker, Inland Nassau, Eastern Hamilton, Northern Columbia, and Western Hamilton Counties. * WHEN...For the first Freeze Warning, until 9 AM EST this morning. For the first Cold Weather Advisory, from 4 AM to 9 AM EST this morning. For the second Freeze Warning, from midnight tonight to 9 AM EST Tuesday. For the second Cold Weather Advisory, from 2 AM to 9 AM EST Tuesday. * IMPACTS...The cold wind chills as low as 20 degrees could result in hypothermia or frostbite if precautions are not taken. Wind chill values can lead to hypothermia with prolonged exposure. 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.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold. Take steps now to protect tender plants from the cold.


Monday, February 23, 2026

Weather Forecast

Sunny
56.1°F
36.9°F
45.9°F
35%
0 in
0%
0%
14.1 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 4.41 μg/m3
PM10: 4.49 μg/m3
Carbon Monoxide: 178.29 μg/m3
Nitrogen Dioxide: 3.59 μg/m3
Sulphur Dioxide: 3.77 μg/m3
Ozone: 85.48 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 12:39 AM
Sunset: 6:21 PM
Daylight: 11 hrs 22 mins
Moonrise: 10:33 AM
Moon Transit: 5:47 PM
Moonset: 12:01 AM
Moon Phase: First Quarter
Moon Illumination: 39.8%

Best Times for Fishing or Hunting

Major Periods

5:59 AM - 8:29 AM
5:17 PM - 7:47 PM

Minor Periods

10:03 AM - 11:33 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Tuesday, February 24, 2026

Weather Forecast

Sunny
55.4°F
34.9°F
45.2°F
37%
0 in
0%
0%
8.5 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 5.86 μg/m3
PM10: 5.99 μg/m3
Carbon Monoxide: 190.61 μg/m3
Nitrogen Dioxide: 5.76 μg/m3
Sulphur Dioxide: 5.39 μg/m3
Ozone: 78.32 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 12:39 AM
Sunset: 6:22 PM
Daylight: 11 hrs 24 mins
Moonrise: 11:21 AM
Moon Transit: 6:48 PM
Moonset: 1:10 AM
Moon Phase: First Quarter
Moon Illumination: 51.1%

Best Times for Fishing or Hunting

Major Periods

6:58 AM - 9:28 AM
6:18 PM - 8:48 PM

Minor Periods

10:51 AM - 12:21 AM
12:40 AM - 2:10 AM

Action Rating: 4 out of 5

Wednesday, February 25, 2026

Weather Forecast

Overcast
63.7°F
41.2°F
51.5°F
62%
0 in
0%
0%
10.5 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 6.87 μg/m3
PM10: 7.91 μg/m3
Carbon Monoxide: 195.77 μg/m3
Nitrogen Dioxide: 7.04 μg/m3
Sulphur Dioxide: 3.36 μg/m3
Ozone: 83.8 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 12:39 AM
Sunset: 6:23 PM
Daylight: 11 hrs 26 mins
Moonrise: 12:19 AM
Moon Transit: 7:50 PM
Moonset: 2:19 AM
Moon Phase: First Quarter
Moon Illumination: 62.3%

Best Times for Fishing or Hunting

Major Periods

7:59 AM - 10:29 AM
7:20 PM - 9:50 PM

Minor Periods

11:49 AM - 1:19 PM
1:49 AM - 3:19 AM

Action Rating: 2 out of 5

Thursday, February 26, 2026

Weather Forecast

Sunny
77.5°F
50.9°F
63.7°F
57%
0 in
0%
0%
13.6 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 5.56 μg/m3
PM10: 6.37 μg/m3
Carbon Monoxide: 173.27 μg/m3
Nitrogen Dioxide: 7.18 μg/m3
Sulphur Dioxide: 3.03 μg/m3
Ozone: 89 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 12:39 AM
Sunset: 6:23 PM
Daylight: 11 hrs 28 mins
Moonrise: 1:23 PM
Moon Transit: 8:53 PM
Moonset: 3:22 AM
Moon Phase: First Quarter
Moon Illumination: 72.9%

Best Times for Fishing or Hunting

Major Periods

9:02 AM - 11:32 AM
8:23 PM - 10:53 PM

Minor Periods

12:53 AM - 2:23 PM
2:52 AM - 4:22 AM

Action Rating: 2 out of 5

Friday, February 27, 2026

Weather Forecast

Moderate rain
68.8°F
59.1°F
64.7°F
81%
0.2 in
88%
0%
10.5 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 5.57 μg/m3
PM10: 5.98 μg/m3
Carbon Monoxide: 175.35 μg/m3
Nitrogen Dioxide: 8.74 μg/m3
Sulphur Dioxide: 2.69 μg/m3
Ozone: 80.62 μg/m3

Astronomical

Sunrise: 6:55 AM
Sun Transit: 12:38 AM
Sunset: 6:24 PM
Daylight: 11 hrs 29 mins
Moonrise: 2:32 PM
Moon Transit: 9:52 PM
Moonset: 4:19 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 82.3%

Best Times for Fishing or Hunting

Major Periods

10:03 AM - 12:33 AM
9:22 PM - 11:52 PM

Minor Periods

2:02 PM - 3:32 PM
3:49 AM - 5:19 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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