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

Current Water Temperature

79.0°F

Measurement Time: Monday, May 25, 2026, 8:12 AM CDT

Today's Tides

Low: May 25, 12:15 AM, 0.8 ft
 High: May 25, 5:41 AM, 1.1 ft
Low: May 25, 10:50 AM, 0.9 ft
 High: May 25, 5:13 PM, 1.4 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

73.8°F
Mist
Mist
78.1°F
79.1°F
94%
NNE 5.4 mph
7.5 mph
74.6°F
72.3°F
0 in
25%
8 mi
1014 mbar
0.6

Five Day Weather Forecast

Sunny
Mon
H: 87°F
L: 72°F
Patchy rain nearby
Tue
H: 87°F
L: 75°F
Heavy rain
Wed
H: 80°F
L: 71°F
Moderate rain
Thu
H: 83°F
L: 72°F
Patchy rain nearby
Fri
H: 85°F
L: 74°F

Air Quality

AQI: 1 - Good
PM2.5: 7.45 μg/m3
PM10: 8.05 μg/m3
Carbon Monoxide: 135.85 μg/m3
Nitrogen Dioxide: 2.45 μg/m3
Sulphur Dioxide: 2.55 μg/m3
Ozone: 104 μg/m3

Astronomical

Sunrise: 6:22 AM
Sun Transit: 1:16 PM
Sunset: 8:12 PM
Daylight: 13 hrs 50 mins
Moonrise: 3:22 PM
Moon Transit: 9:23 PM
Moonset: 2:51 AM
Moon Phase: First Quarter
Moon Illumination: 66.7%

Best Times for Fishing or Hunting

Major Periods

7:51 AM - 10:21 AM
8:53 PM - 11:23 PM

Minor Periods

2:52 PM - 4:22 PM
2:21 AM - 3:51 AM

Action Rating: 2 out of 5

Air Quality Alert issued May 24 at 2:16PM CDT by NWS Houston/Galveston TX

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Sun May 24, 2026, 2:16 PM
Expires: Mon May 25, 2026, 6:30 PM

AQAHGX The Texas Commission on Environmental Quality (TCEQ) has issued an Ozone Action Day for the Houston, Galveston, and Brazoria area for Monday, May 25, 2026. Atmospheric conditions are expected to be favorable for producing high levels of ozone pollution in the Houston, Galveston, and surrounding areas on Monday. 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


Monday, May 25, 2026

Weather Forecast

Sunny
87.4°F
72.1°F
78.5°F
79%
0 in
0%
0%
9.8 mph
9.6


Air Quality

AQI: 1 - Good
PM2.5: 8.28 μg/m3
PM10: 9.25 μg/m3
Carbon Monoxide: 135.29 μg/m3
Nitrogen Dioxide: 4.84 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 75.48 μg/m3

Astronomical

Sunrise: 6:22 AM
Sun Transit: 1:16 PM
Sunset: 8:12 PM
Daylight: 13 hrs 50 mins
Moonrise: 3:22 PM
Moon Transit: 9:23 PM
Moonset: 2:51 AM
Moon Phase: First Quarter
Moon Illumination: 66.7%

Best Times for Fishing or Hunting

Major Periods

7:51 AM - 10:21 AM
8:53 PM - 11:23 PM

Minor Periods

2:52 PM - 4:22 PM
2:21 AM - 3:51 AM

Action Rating: 2 out of 5

Tuesday, May 26, 2026

Weather Forecast

Patchy rain nearby
87.1°F
74.6°F
80.6°F
73%
0.01 in
83%
0%
11.4 mph
8.9


Air Quality

AQI: 1 - Good
PM2.5: 10.89 μg/m3
PM10: 12.7 μg/m3
Carbon Monoxide: 146.41 μg/m3
Nitrogen Dioxide: 5.25 μg/m3
Sulphur Dioxide: 2.16 μg/m3
Ozone: 79.72 μg/m3

Astronomical

Sunrise: 6:22 AM
Sun Transit: 1:17 PM
Sunset: 8:13 PM
Daylight: 13 hrs 51 mins
Moonrise: 4:18 PM
Moon Transit: 10:05 PM
Moonset: 3:18 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.9%

Best Times for Fishing or Hunting

Major Periods

8:33 AM - 11:03 AM
12:00 AM - 12:00 AM

Minor Periods

3:48 PM - 5:18 PM
2:48 AM - 4:18 AM

Action Rating: 2 out of 5

Wednesday, May 27, 2026

Weather Forecast

Heavy rain
80.2°F
70.5°F
75.5°F
88%
0.87 in
85%
0%
11.9 mph
8.3


Air Quality

AQI: 1 - Good
PM2.5: 7.17 μg/m3
PM10: 9.76 μg/m3
Carbon Monoxide: 128.53 μg/m3
Nitrogen Dioxide: 4.53 μg/m3
Sulphur Dioxide: 1.69 μg/m3
Ozone: 68.52 μg/m3

Astronomical

Sunrise: 6:22 AM
Sun Transit: 1:17 PM
Sunset: 8:13 PM
Daylight: 13 hrs 52 mins
Moonrise: 5:14 PM
Moon Transit: 10:48 PM
Moonset: 3:47 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.7%

Best Times for Fishing or Hunting

Major Periods

9:15 AM - 11:45 AM
12:00 AM - 12:00 AM

Minor Periods

4:44 PM - 6:14 PM
3:17 AM - 4:47 AM

Action Rating: 2 out of 5

Thursday, May 28, 2026

Weather Forecast

Moderate rain
82.8°F
71.9°F
77.2°F
84%
0.64 in
88%
0%
8.9 mph
5.8


Air Quality

AQI: 1 - Good
PM2.5: 5.62 μg/m3
PM10: 7.1 μg/m3
Carbon Monoxide: 119.2 μg/m3
Nitrogen Dioxide: 5.11 μg/m3
Sulphur Dioxide: 1.82 μg/m3
Ozone: 66.84 μg/m3

Astronomical

Sunrise: 6:21 AM
Sun Transit: 1:17 PM
Sunset: 8:14 PM
Daylight: 13 hrs 53 mins
Moonrise: 6:11 PM
Moon Transit: 11:32 PM
Moonset: 4:17 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.7%

Best Times for Fishing or Hunting

Major Periods

9:59 AM - 12:29 AM
12:00 AM - 12:00 AM

Minor Periods

5:41 PM - 7:11 PM
3:47 AM - 5:17 AM

Action Rating: 2 out of 5

Friday, May 29, 2026

Weather Forecast

Patchy rain nearby
85.2°F
73.7°F
78.5°F
79%
0.01 in
80%
0%
8.3 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 10.16 μg/m3
PM10: 12.09 μg/m3
Carbon Monoxide: 141.2 μg/m3
Nitrogen Dioxide: 7.32 μg/m3
Sulphur Dioxide: 2.01 μg/m3
Ozone: 47.23 μg/m3

Astronomical

Sunrise: 6:21 AM
Sun Transit: 1:17 PM
Sunset: 8:14 PM
Daylight: 13 hrs 53 mins
Moonrise: 7:08 PM
Moon Transit: 12:00 AM
Moonset: 4:51 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:44 AM - 1:14 PM

Minor Periods

6:38 PM - 8:08 PM
4:21 AM - 5:51 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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