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

Current Water Temperature

85.1°F

Measurement Time: Monday, September 22, 2025, 9:48 AM CDT

Today's Tides

 Low: September 22, 3:16 AM, 0.83 ft
High: September 22, 9:06 AM, 1.28 ft
 Low: September 22, 3:36 PM, 0.71 ft
High: September 22, 10:39 PM, 1.38 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

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San Jacinto River

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

Elevation Above Sea Level: 13 feet / 4 meters

Sensor Depth: -2.7 feet / -0.8 meters

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 (22.0 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

82.9°F
Sunny
Conditions: Sunny
Humidity: 74%
Feels Like: 90.7°F
Wind: SSE 8.7 mph
Wind Gusts: 11.3 mph
Pressure: 29.89 in
Precipitation: 0 in
Cloud Cover: 25%
Visibility: 9 mi
UV Index: 3.1

Five Day Weather Forecast

Sunny
Mon
H: 91°F
L: 79°F
Sunny
Tue
H: 90°F
L: 79°F
Heavy rain
Wed
H: 91°F
L: 77°F
Moderate rain
Thu
H: 83°F
L: 72°F
Sunny
Fri
H: 88°F
L: 69°F

Air Quality

AQI: 1 - Good
PM2.5: 8.51 μg/m3
PM10: 12.58 μg/m3
Carbon Monoxide: 284.9 μg/m3
Nitrogen Dioxide: 2.96 μg/m3
Sulphur Dioxide: 0.74 μg/m3
Ozone: 97 μg/m3

Astronomical

Sunrise: 7:08 AM
Sun Transit: 1:12 PM
Sunset: 7:16 PM
Daylight: 12 hrs 7 mins
Moonrise: 7:50 AM
Moon Transit: 1:48 PM
Moonset: 7:40 PM
Moon Phase: New
Moon Illumination: 2.9%

Best Times for Fishing or Hunting

Major Periods

12:17 AM - 2:47 AM
1:18 PM - 3:48 PM

Minor Periods

7:10 PM - 8:40 PM
7:20 AM - 8:50 AM

Action Rating: 5 out of 5

Monday, September 22, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 83.4°F
Average Humidity: 79%
Chance of Rain: 0%
Wind: 12.1 mph
UV Index: 2.1

Air Quality

AQI: 1 - Good
PM2.5: 8.36 μg/m3
PM10: 12.02 μg/m3
Carbon Monoxide: 283.42 μg/m3
Nitrogen Dioxide: 5.56 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 91.6 μg/m3

Astronomical

Sunrise: 7:08 AM
Sun Transit: 1:12 PM
Sunset: 7:16 PM
Daylight: 12 hrs 7 mins
Moonrise: 7:50 AM
Moon Transit: 1:48 PM
Moonset: 7:40 PM
Moon Phase: New
Moon Illumination: 2.9%

Best Times for Fishing or Hunting

Major Periods

12:17 AM - 2:47 AM
1:18 PM - 3:48 PM

Minor Periods

7:10 PM - 8:40 PM
7:20 AM - 8:50 AM

Action Rating: 5 out of 5

Tuesday, September 23, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 84.1°F
Average Humidity: 76%
Chance of Rain: 0%
Wind: 12.3 mph
UV Index: 1.8

Air Quality

AQI: 1 - Good
PM2.5: 6.34 μg/m3
PM10: 9.48 μg/m3
Carbon Monoxide: 252.49 μg/m3
Nitrogen Dioxide: 6.1 μg/m3
Sulphur Dioxide: 0.79 μg/m3
Ozone: 70 μg/m3

Astronomical

Sunrise: 7:09 AM
Sun Transit: 1:12 PM
Sunset: 7:15 PM
Daylight: 12 hrs 6 mins
Moonrise: 8:45 AM
Moon Transit: 2:29 PM
Moonset: 8:08 PM
Moon Phase: New
Moon Illumination: 0.6%

Best Times for Fishing or Hunting

Major Periods

12:58 AM - 3:28 AM
1:59 PM - 4:29 PM

Minor Periods

7:38 PM - 9:08 PM
8:15 AM - 9:45 AM

Action Rating: 4 out of 5

Wednesday, September 24, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 83.3°F
Average Humidity: 79%
Chance of Rain: 85%
Wind: 11 mph
UV Index: 1.8

Air Quality

AQI: 1 - Good
PM2.5: 7.95 μg/m3
PM10: 11.7 μg/m3
Carbon Monoxide: 241.91 μg/m3
Nitrogen Dioxide: 7.6 μg/m3
Sulphur Dioxide: 1.47 μg/m3
Ozone: 62.6 μg/m3

Astronomical

Sunrise: 7:09 AM
Sun Transit: 1:11 PM
Sunset: 7:13 PM
Daylight: 12 hrs 4 mins
Moonrise: 9:40 AM
Moon Transit: 3:11 PM
Moonset: 8:38 PM
Moon Phase: New
Moon Illumination: 3.6%

Best Times for Fishing or Hunting

Major Periods

1:39 AM - 4:09 AM
2:41 PM - 5:11 PM

Minor Periods

8:08 PM - 9:38 PM
9:10 AM - 10:40 AM

Action Rating: 3 out of 5

Thursday, September 25, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 76.3°F
Average Humidity: 82%
Chance of Rain: 86%
Wind: 8.7 mph
UV Index: 0.8

Air Quality

AQI: 1 - Good
PM2.5: 9.72 μg/m3
PM10: 10.96 μg/m3
Carbon Monoxide: 342.77 μg/m3
Nitrogen Dioxide: 17.32 μg/m3
Sulphur Dioxide: 4.89 μg/m3
Ozone: 78.08 μg/m3

Astronomical

Sunrise: 7:10 AM
Sun Transit: 1:11 PM
Sunset: 7:12 PM
Daylight: 12 hrs 2 mins
Moonrise: 10:37 AM
Moon Transit: 3:56 PM
Moonset: 9:11 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.9%

Best Times for Fishing or Hunting

Major Periods

2:22 AM - 4:52 AM
3:26 PM - 5:56 PM

Minor Periods

8:41 PM - 10:11 PM
10:07 AM - 11:37 AM

Action Rating: 2 out of 5

Friday, September 26, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 77.7°F
Average Humidity: 49%
Chance of Rain: 0%
Wind: 7.2 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 10.27 μg/m3
PM10: 10.57 μg/m3
Carbon Monoxide: 387.93 μg/m3
Nitrogen Dioxide: 13.6 μg/m3
Sulphur Dioxide: 2.18 μg/m3
Ozone: 88.15 μg/m3

Astronomical

Sunrise: 7:11 AM
Sun Transit: 1:11 PM
Sunset: 7:11 PM
Daylight: 12 hrs mins
Moonrise: 11:33 AM
Moon Transit: 4:42 PM
Moonset: 9:49 PM
Moon Phase: Waxing Crescent
Moon Illumination: 16.4%

Best Times for Fishing or Hunting

Major Periods

3:07 AM - 5:37 AM
4:12 PM - 6:42 PM

Minor Periods

9:19 PM - 10:49 PM
11:03 AM - 12:33 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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