Water Temperature of Galveston Bay in San Leon, TX

Current Water Temperature

85.8°F

Measurement Time: Sunday, September 21, 2025, 10:54 PM CDT

Today's Tides

 Low: September 21, 1:20 AM, 0.64 ft
High: September 21, 9:03 AM, 1.13 ft
 Low: September 21, 2:04 PM, 0.92 ft
High: September 21, 7:56 PM, 1.10 ft

Temperature Locations

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Local Points of Interest

Trinity Bay; East Bay; Dickinson Bay

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Galveston Bay

Station Name: Eagle Point, Galveston Bay
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 0 feet / 0 meters

Sensor Depth: -4.3 feet / -1.3 meters

Nearest Address:
991 5th St
San Leon, TX 77539
Galveston County

GPS Coordinates: 29.480000, -94.918306

Nearby Water Temperatures

Galveston Bay, Galveston, TX (12.3 mi)
Galveston Bay, Galveston, TX (12.5 mi)
Trinity Bay, Baytown, TX (13.7 mi)
Port of Galveston, Galveston, TX (13.9 mi)
Bolivar Roads, Galveston, TX (14.4 mi)
San Jacinto River, La Porte, TX (14.5 mi)
Trinity Bay, Anahuac, TX (16.2 mi)
Rollover Pass, Port Bolivar, TX (24.5 mi)
Old River, Wallisville, TX (24.7 mi)
Old River Lake, Cove, TX (25.3 mi)
Trinity River, Wallisville, TX (25.6 mi)
Buffalo Bayou, Houston, TX (26.9 mi)
Lake Charlotte, Wallisville, TX (29.4 mi)
San Luis Pass, Freeport, TX (30.4 mi)
Old River Cutoff, Moss Bluff, TX (30.5 mi)

Weather for San Leon, Texas

Current Weather

84°F
Partly Cloudy
Conditions: Partly Cloudy
Humidity: 72%
Feels Like: 94.8°F
Wind: SSE 13 mph
Wind Gusts: 19.1 mph
Pressure: 29.91 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Partly Cloudy
Sun
H: 90°F
L: 77°F
Patchy rain nearby
Mon
H: 89°F
L: 81°F
Moderate rain
Tue
H: 89°F
L: 82°F
Heavy rain
Wed
H: 87°F
L: 79°F
Moderate rain
Thu
H: 80°F
L: 76°F

Air Quality

AQI: 1 - Good
PM2.5: 13.51 μg/m3
PM10: 19.8 μg/m3
Carbon Monoxide: 268.25 μg/m3
Nitrogen Dioxide: 2.78 μg/m3
Sulphur Dioxide: 0.74 μg/m3
Ozone: 104 μg/m3

Astronomical

Sunrise: 7:08 AM
Sun Transit: 1:12 PM
Sunset: 7:17 PM
Daylight: 12 hrs 9 mins
Moonrise: 6:55 AM
Moon Transit: 1:08 PM
Moonset: 7:14 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:38 AM - 3:08 PM

Minor Periods

6:44 PM - 8:14 PM
6:25 AM - 7:55 AM

Action Rating: 3 out of 5

Sunday, September 21, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 82.1°F
Average Humidity: 78%
Chance of Rain: 0%
Wind: 13 mph
UV Index: 2

Air Quality

AQI: 1 - Good
PM2.5: 10.89 μg/m3
PM10: 15.9 μg/m3
Carbon Monoxide: 250.79 μg/m3
Nitrogen Dioxide: 4.28 μg/m3
Sulphur Dioxide: 0.79 μg/m3
Ozone: 85 μg/m3

Astronomical

Sunrise: 7:08 AM
Sun Transit: 1:12 PM
Sunset: 7:17 PM
Daylight: 12 hrs 9 mins
Moonrise: 6:55 AM
Moon Transit: 1:08 PM
Moonset: 7:14 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:38 AM - 3:08 PM

Minor Periods

6:44 PM - 8:14 PM
6:25 AM - 7:55 AM

Action Rating: 3 out of 5

Monday, September 22, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 83.7°F
Average Humidity: 76%
Chance of Rain: 63%
Wind: 14.3 mph
UV Index: 2.1

Air Quality

AQI: 1 - Good
PM2.5: 12.31 μg/m3
PM10: 17.88 μg/m3
Carbon Monoxide: 273.87 μg/m3
Nitrogen Dioxide: 3.39 μg/m3
Sulphur Dioxide: 0.64 μg/m3
Ozone: 106.36 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: Moderate rain
Average Temperature: 84.1°F
Average Humidity: 77%
Chance of Rain: 81%
Wind: 15.7 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 10.9 μg/m3
PM10: 15.95 μg/m3
Carbon Monoxide: 257.3 μg/m3
Nitrogen Dioxide: 2.91 μg/m3
Sulphur Dioxide: 0.54 μg/m3
Ozone: 88.2 μg/m3

Astronomical

Sunrise: 7:09 AM
Sun Transit: 1:11 PM
Sunset: 7:14 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: 82.8°F
Average Humidity: 84%
Chance of Rain: 85%
Wind: 18.1 mph
UV Index: 6

Air Quality

AQI: 1 - Good
PM2.5: 7.7 μg/m3
PM10: 11.92 μg/m3
Carbon Monoxide: 235.99 μg/m3
Nitrogen Dioxide: 3.21 μg/m3
Sulphur Dioxide: 0.54 μg/m3
Ozone: 65.12 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: 78.2°F
Average Humidity: 83%
Chance of Rain: 89%
Wind: 11.2 mph
UV Index: 6

Air Quality

AQI: 1 - Good
PM2.5: 6.7 μg/m3
PM10: 10.2 μg/m3
Carbon Monoxide: 223.28 μg/m3
Nitrogen Dioxide: 5.28 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 52.23 μg/m3

Astronomical

Sunrise: 7:10 AM
Sun Transit: 1:11 PM
Sunset: 7:12 PM
Daylight: 12 hrs 2 mins
Moonrise: 10:36 AM
Moon Transit: 3:55 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
3:25 PM - 5:55 PM

Minor Periods

8:41 PM - 10:11 PM
10:06 AM - 11:36 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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