Water Temperature of the San Jacinto River in La Porte, TX

Current Water Temperature

86.9°F

Measurement Time: Wednesday, July 22, 2026, 5:24 AM CDT

Today's Tides

 High: July 22, 7:28 AM, 1.3 ft
Low: July 22, 10:13 PM, -0.1 ft

Temperature Locations

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Local Points of Interest

Barbours Cut; Hog Island; Houston Ship Channel; Tabbs Bay; Trinity Bay; Atkinson Island Wildlife Management Area

San Jacinto River

Station Name: Morgans Point, Barbours Cut
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 13 feet

Sensor Depth: -3 feet

Nearest Address:
2305 E Barbours Cut Blvd
La Porte, TX 77571
Harris County

GPS Coordinates: 29.681667, -94.985

Nearby Water Temperatures

Trinity Bay, Baytown, TX (7.9 mi)
Trinity Bay, Anahuac, TX (14.4 mi)
Galveston Bay, San Leon, TX (14.5 mi)
Old River Lake, Cove, TX (15.2 mi)
Old River, Wallisville, TX (16.8 mi)
Buffalo Bayou, Houston, TX (17.1 mi)
Trinity River, Wallisville, TX (17.7 mi)
Old River Cutoff, Moss Bluff, TX (19.9 mi)
Lake Charlotte, Wallisville, TX (20.7 mi)
Lake Houston, Houston, TX (20.8 mi)
Trinity River, Liberty, TX (22 mi)
Lake Houston, Houston, TX (22.2 mi)
Lake Houston, Houston, TX (24.3 mi)
Galveston Bay, Galveston, TX (26.4 mi)
Galveston Bay, Galveston, TX (26.7 mi)

Weather for La Porte, Texas

Current Weather

80.8°F
Clear
Clear
86.6°F
83.2°F
79%
W 7.6 mph
12.8 mph
78.8°F
71.7°F
0 in
0%
9 mi
1010 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 102°F
L: 78°F
Sunny
Thu
H: 94°F
L: 81°F
Patchy rain nearby
Fri
H: 90°F
L: 79°F
Sunny
Sat
H: 92°F
L: 80°F
Sunny
Sun
H: 93°F
L: 79°F

Air Quality

AQI: 1 - Good
PM2.5: 11.2 μg/m3
PM10: 16 μg/m3
Carbon Monoxide: 104 μg/m3
Nitrogen Dioxide: 11.9 μg/m3
Sulphur Dioxide: 1.8 μg/m3
Ozone: 29 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 1:26 PM
Sunset: 8:19 PM
Daylight: 13 hrs 45 mins
Moonrise: 2:55 PM
Moon Transit: 8:12 PM
Moonset: 12:52 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

6:38 AM - 9:08 AM
7:42 PM - 10:12 PM

Minor Periods

2:25 PM - 3:55 PM
12:22 AM - 1:52 AM

Action Rating: 3 out of 5

Air Quality Alert issued July 21 at 2:45PM CDT by NWS Houston/Galveston TX

Effective: Tue July 21, 2026, 2:45 PM
Expires: Wed July 22, 2026, 8:00 PM

AQAHGX The Texas Commission on Environmental Quality (TCEQ) has issued an Ozone Action Day for the Houston, Galveston, and Brazoria area for Wednesday, July 22, 2026. Atmospheric conditions are expected to be favorable for producing high levels of ozone pollution in the Houston, Galveston, and surrounding areas on Wednesday. You can help prevent ozone pollution by sharing a ride, walking, riding a bicycle, taking your lunch to work, avoiding drive through lanes, conserving energy and keeping your vehicle properly tuned. For more information on ozone: Ozone: The Facts www.tceq.texas.gov/airquality/monops/ozonefacts.html EPA AirNow: www.airnow.gov/?city=Houston&state=TX&country=USA Take Care of Texas: www.takecareoftexas.org/conservation-tips/keep-our-air-clean
Wednesday, July 22, 2026

Weather Forecast

Sunny
101.8°F
77.9°F
88.7°F
65%
0.07 in
57%
0%
13.2 mph
11.5


Air Quality

AQI: 2 - Moderate
PM2.5: 16.63 μg/m3
PM10: 21.98 μg/m3
Carbon Monoxide: 120.58 μg/m3
Nitrogen Dioxide: 10.92 μg/m3
Sulphur Dioxide: 2.3 μg/m3
Ozone: 77.67 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 1:26 PM
Sunset: 8:19 PM
Daylight: 13 hrs 45 mins
Moonrise: 2:55 PM
Moon Transit: 8:12 PM
Moonset: 12:52 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

6:38 AM - 9:08 AM
7:42 PM - 10:12 PM

Minor Periods

2:25 PM - 3:55 PM
12:22 AM - 1:52 AM

Action Rating: 3 out of 5

Thursday, July 23, 2026

Weather Forecast

Sunny
94°F
80.9°F
86.4°F
67%
0.05 in
57%
0%
9.4 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 14.19 μg/m3
PM10: 19.52 μg/m3
Carbon Monoxide: 134.13 μg/m3
Nitrogen Dioxide: 7.24 μg/m3
Sulphur Dioxide: 2.18 μg/m3
Ozone: 74.58 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:26 PM
Sunset: 8:18 PM
Daylight: 13 hrs 44 mins
Moonrise: 3:52 PM
Moon Transit: 9:00 PM
Moonset: 1:26 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%

Best Times for Fishing or Hunting

Major Periods

7:25 AM - 9:55 AM
8:30 PM - 11:00 PM

Minor Periods

3:22 PM - 4:52 PM
12:56 AM - 2:26 AM

Action Rating: 3 out of 5

Friday, July 24, 2026

Weather Forecast

Patchy rain nearby
89.7°F
79.2°F
83.5°F
75%
0.15 in
70%
0%
13.9 mph
11.6


Air Quality

AQI: 2 - Moderate
PM2.5: 17.85 μg/m3
PM10: 27.18 μg/m3
Carbon Monoxide: 107.88 μg/m3
Nitrogen Dioxide: 3.71 μg/m3
Sulphur Dioxide: 1.76 μg/m3
Ozone: 64.67 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:26 PM
Sunset: 8:18 PM
Daylight: 13 hrs 43 mins
Moonrise: 4:49 PM
Moon Transit: 9:50 PM
Moonset: 2:06 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

8:14 AM - 10:44 AM
9:20 PM - 11:50 PM

Minor Periods

4:19 PM - 5:49 PM
1:36 AM - 3:06 AM

Action Rating: 2 out of 5

Saturday, July 25, 2026

Weather Forecast

Sunny
92.2°F
79.9°F
85.1°F
68%
0 in
17%
0%
13 mph
8


Air Quality

AQI: 2 - Moderate
PM2.5: 19.33 μg/m3
PM10: 33.36 μg/m3
Carbon Monoxide: 103.98 μg/m3
Nitrogen Dioxide: 2.64 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 65.58 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 1:26 PM
Sunset: 8:17 PM
Daylight: 13 hrs 42 mins
Moonrise: 5:43 PM
Moon Transit: 10:42 PM
Moonset: 2:51 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

9:05 AM - 11:35 AM
12:00 AM - 12:00 AM

Minor Periods

5:13 PM - 6:43 PM
2:21 AM - 3:51 AM

Action Rating: 2 out of 5

Sunday, July 26, 2026

Weather Forecast

Sunny
92.8°F
78.6°F
85.3°F
67%
0 in
6%
0%
13 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 13.7 μg/m3
PM10: 22.58 μg/m3
Carbon Monoxide: 100.25 μg/m3
Nitrogen Dioxide: 3.23 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 59.75 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 1:26 PM
Sunset: 8:17 PM
Daylight: 13 hrs 40 mins
Moonrise: 6:34 PM
Moon Transit: 11:33 PM
Moonset: 3:41 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

9:56 AM - 12:26 AM
12:00 AM - 12:00 AM

Minor Periods

6:04 PM - 7:34 PM
3:11 AM - 4:41 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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