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

Current Water Temperature

86.9°F

Measurement Time: Monday, September 1, 2025, 2:00 PM CDT

Today's Tides

High: September 1, 8:06 AM, 1.61 ft
 Low: September 1, 10:18 PM, 0.07 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

86.4°F
Light rain
Conditions: Light rain
Humidity: 67%
Feels Like: 94.3°F
Wind: ESE 6.7 mph
Wind Gusts: 8.6 mph
Pressure: 29.99 in
Precipitation: 0 in
Cloud Cover: 75%
Visibility: 9 mi
UV Index: 9.7

Five Day Weather Forecast

Partly Cloudy
Mon
H: 88°F
L: 74°F
Thundery outbreaks in nearby
Tue
H: 90°F
L: 79°F
Sunny
Wed
H: 96°F
L: 78°F
Sunny
Thu
H: 96°F
L: 80°F
Sunny
Fri
H: 93°F
L: 79°F

Air Quality

AQI: 2 - Moderate
PM2.5: 7.22 μg/m3
PM10: 7.59 μg/m3
Carbon Monoxide: 358.9 μg/m3
Nitrogen Dioxide: 11.66 μg/m3
Sulphur Dioxide: 1.67 μg/m3
Ozone: 145 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 1:19 PM
Sunset: 7:42 PM
Daylight: 12 hrs 44 mins
Moonrise: 3:36 PM
Moon Transit: 8:33 PM
Moonset: 12:39 AM
Moon Phase: First Quarter
Moon Illumination: 64.3%

Best Times for Fishing or Hunting

Major Periods

6:55 AM - 9:25 AM
8:03 PM - 10:33 PM

Minor Periods

3:06 PM - 4:36 PM
12:09 AM - 1:39 AM

Action Rating: 4 out of 5

Monday, September 1, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 80.8°F
Average Humidity: 83%
Chance of Rain: 0%
Wind: 7.6 mph
UV Index: 2.4

Air Quality

AQI: 1 - Good
PM2.5: 10.24 μg/m3
PM10: 10.64 μg/m3
Carbon Monoxide: 392.05 μg/m3
Nitrogen Dioxide: 9.65 μg/m3
Sulphur Dioxide: 1.96 μg/m3
Ozone: 109.16 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 1:19 PM
Sunset: 7:42 PM
Daylight: 12 hrs 44 mins
Moonrise: 3:36 PM
Moon Transit: 8:33 PM
Moonset: 12:39 AM
Moon Phase: First Quarter
Moon Illumination: 64.3%

Best Times for Fishing or Hunting

Major Periods

6:55 AM - 9:25 AM
8:03 PM - 10:33 PM

Minor Periods

3:06 PM - 4:36 PM
12:09 AM - 1:39 AM

Action Rating: 4 out of 5

Tuesday, September 2, 2025

Weather Forecast

Conditions: Thundery outbreaks in nearby
Average Temperature: 83.8°F
Average Humidity: 72%
Chance of Rain: 0%
Wind: 7.2 mph
UV Index: 2.2

Air Quality

AQI: 1 - Good
PM2.5: 9.04 μg/m3
PM10: 9.44 μg/m3
Carbon Monoxide: 404.93 μg/m3
Nitrogen Dioxide: 8.95 μg/m3
Sulphur Dioxide: 1.36 μg/m3
Ozone: 112.96 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 1:19 PM
Sunset: 7:40 PM
Daylight: 12 hrs 42 mins
Moonrise: 4:28 PM
Moon Transit: 9:27 PM
Moonset: 1:31 AM
Moon Phase: First Quarter
Moon Illumination: 74.7%

Best Times for Fishing or Hunting

Major Periods

7:49 AM - 10:19 AM
8:57 PM - 11:27 PM

Minor Periods

3:58 PM - 5:28 PM
1:01 AM - 2:31 AM

Action Rating: 2 out of 5

Wednesday, September 3, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 85.4°F
Average Humidity: 70%
Chance of Rain: 0%
Wind: 12.1 mph
UV Index: 2.3

Air Quality

AQI: 2 - Moderate
PM2.5: 16.03 μg/m3
PM10: 16.24 μg/m3
Carbon Monoxide: 386.43 μg/m3
Nitrogen Dioxide: 21.37 μg/m3
Sulphur Dioxide: 4.21 μg/m3
Ozone: 109.32 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 1:19 PM
Sunset: 7:39 PM
Daylight: 12 hrs 41 mins
Moonrise: 5:15 PM
Moon Transit: 10:21 PM
Moonset: 2:30 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 83.9%

Best Times for Fishing or Hunting

Major Periods

8:43 AM - 11:13 AM
12:00 AM - 12:00 AM

Minor Periods

4:45 PM - 6:15 PM
2:00 AM - 3:30 AM

Action Rating: 2 out of 5

Thursday, September 4, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 86.1°F
Average Humidity: 69%
Chance of Rain: 0%
Wind: 13.2 mph
UV Index: 2.3

Air Quality

AQI: 2 - Moderate
PM2.5: 15.65 μg/m3
PM10: 15.73 μg/m3
Carbon Monoxide: 432.53 μg/m3
Nitrogen Dioxide: 12.54 μg/m3
Sulphur Dioxide: 2.62 μg/m3
Ozone: 117.32 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 1:18 PM
Sunset: 7:38 PM
Daylight: 12 hrs 39 mins
Moonrise: 5:57 PM
Moon Transit: 11:14 PM
Moonset: 3:32 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.3%

Best Times for Fishing or Hunting

Major Periods

9:36 AM - 12:06 AM
12:00 AM - 12:00 AM

Minor Periods

5:27 PM - 6:57 PM
3:02 AM - 4:32 AM

Action Rating: 2 out of 5

Friday, September 5, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 85.2°F
Average Humidity: 62%
Chance of Rain: 0%
Wind: 11.6 mph
UV Index: 0

Air Quality

AQI: 2 - Moderate
PM2.5: 16.88 μg/m3
PM10: 17.39 μg/m3
Carbon Monoxide: 433.9 μg/m3
Nitrogen Dioxide: 18.64 μg/m3
Sulphur Dioxide: 5.66 μg/m3
Ozone: 162.46 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 1:18 PM
Sunset: 7:37 PM
Daylight: 12 hrs 37 mins
Moonrise: 6:35 PM
Moon Transit: 12:00 AM
Moonset: 4:37 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:28 AM - 12:58 AM

Minor Periods

6:05 PM - 7:35 PM
4:07 AM - 5:37 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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