Water Temperature of San Antonio Bay in Austwell, TX

Current Water Temperature

80.6°F

Measurement Time: Monday, May 18, 2026, 8:54 AM CDT

Today's Tides

Low: May 18, 7:06 AM, 0.2 ft
 High: May 18, 7:10 PM, 0.5 ft

Temperature Locations

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Local Points of Interest

Gulf Intracoastal Waterway; Mustang Bay; False Live Oak Point; Redfish Slough; Matagorda Island

San Antonio Bay

Station Name: Aransas Wildlife Refuge
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 0 feet

Sensor Depth: -4 feet

Nearest Address:
Aransas National Wildlife Refuge
Austwell, TX 77950
Calh County

GPS Coordinates: 28.228300, -96.794998

Nearby Water Temperatures

San Antonio Bay, Seadrift, TX (13.3 mi)
Aransas Bay, Rockport, TX (21 mi)
Matagorda Bay, Port O'Connor, TX (28.6 mi)
Lavaca Bay, Port Lavaca, TX (30.6 mi)
Aransas Pass, Port Aransas, TX (30.9 mi)
Matagorda Ship Channel, Port O'Connor, TX (31.4 mi)
Corpus Christi Channel, Port Aransas, TX (31.7 mi)
Corpus Christi Bay, Portland, TX (38.5 mi)
San Antonio River, Goliad, TX (46.2 mi)
Tres Palacios Bay, Palacios, TX (46.3 mi)
Corpus Christi Bay, Corpus Christi, TX (46.3 mi)
Packery Channel, Corpus Christi, TX (49.1 mi)
Neuces Bay, Corpus Christi, TX (50.2 mi)
Viola Turning Basin, Corpus Christi, TX (51.5 mi)
Rincon Bayou Channel, Odem, TX (55 mi)

Weather for Austwell, Texas

Current Weather

80.1°F
Mist
Mist
86.8°F
86.2°F
87%
SSE 17.4 mph
20.6 mph
79.9°F
74.8°F
0 in
75%
4 mi
1010 mbar
1.7

Five Day Weather Forecast

Moderate rain
Mon
H: 87°F
L: 77°F
Patchy rain nearby
Tue
H: 89°F
L: 78°F
Patchy rain nearby
Wed
H: 89°F
L: 77°F
Patchy rain nearby
Thu
H: 86°F
L: 77°F
Moderate rain
Fri
H: 87°F
L: 71°F

Air Quality

AQI: 1 - Good
PM2.5: 13.25 μg/m3
PM10: 20.15 μg/m3
Carbon Monoxide: 123.85 μg/m3
Nitrogen Dioxide: 1.15 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 69 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 1:23 PM
Sunset: 8:12 PM
Daylight: 13 hrs 37 mins
Moonrise: 8:00 AM
Moon Transit: 3:25 PM
Moonset: 10:51 PM
Moon Phase: New
Moon Illumination: 2.6%

Best Times for Fishing or Hunting

Major Periods

1:25 AM - 3:55 AM
2:55 PM - 5:25 PM

Minor Periods

10:21 PM - 11:51 PM
7:30 AM - 9:00 AM

Action Rating: 3 out of 5

Coastal Flood Advisory issued May 18 at 1:27AM CDT until May 18 at 12:00PM CDT by NWS Corpus Christi TX

Effective: Mon May 18, 2026, 1:27 AM
Expires: Mon May 18, 2026, 5:00 PM

* WHAT...For the Coastal Flood Advisory, minor coastal flooding expected. For the High Rip Current Risk, dangerous rip currents expected. * WHERE...Aransas Islands, Kleberg Islands, Nueces Islands and Calhoun Islands Counties. * WHEN...For the Coastal Flood Advisory, until noon CDT today. For the High Rip Current Risk, from 6 AM CDT this morning through Tuesday evening. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. Rip currents can sweep even the most experienced swimmers away from shore into deeper water. These rip currents can become life-threatening to anyone entering the surf.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.


Rip Current Statement issued May 18 at 1:27AM CDT until May 19 at 7:00PM CDT by NWS Corpus Christi TX

Effective: Mon May 18, 2026, 1:27 AM
Expires: Mon May 18, 2026, 5:00 PM

* WHAT...For the Coastal Flood Advisory, minor coastal flooding expected. For the High Rip Current Risk, dangerous rip currents expected. * WHERE...Aransas Islands, Kleberg Islands, Nueces Islands and Calhoun Islands Counties. * WHEN...For the Coastal Flood Advisory, until noon CDT today. For the High Rip Current Risk, from 6 AM CDT this morning through Tuesday evening. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. Rip currents can sweep even the most experienced swimmers away from shore into deeper water. These rip currents can become life-threatening to anyone entering the surf.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.


Monday, May 18, 2026

Weather Forecast

Moderate rain
86.5°F
77.4°F
80.8°F
84%
0.24 in
88%
0%
21.9 mph
10.5


Air Quality

AQI: 1 - Good
PM2.5: 13.74 μg/m3
PM10: 20.46 μg/m3
Carbon Monoxide: 127.53 μg/m3
Nitrogen Dioxide: 1.49 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 60.08 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 1:23 PM
Sunset: 8:12 PM
Daylight: 13 hrs 37 mins
Moonrise: 8:00 AM
Moon Transit: 3:25 PM
Moonset: 10:51 PM
Moon Phase: New
Moon Illumination: 2.6%

Best Times for Fishing or Hunting

Major Periods

1:25 AM - 3:55 AM
2:55 PM - 5:25 PM

Minor Periods

10:21 PM - 11:51 PM
7:30 AM - 9:00 AM

Action Rating: 3 out of 5

Tuesday, May 19, 2026

Weather Forecast

Patchy rain nearby
89.3°F
77.7°F
82.4°F
77%
0.02 in
88%
0%
17.4 mph
9.3


Air Quality

AQI: 1 - Good
PM2.5: 10.91 μg/m3
PM10: 16.78 μg/m3
Carbon Monoxide: 124.33 μg/m3
Nitrogen Dioxide: 1.47 μg/m3
Sulphur Dioxide: 1.26 μg/m3
Ozone: 64.4 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:23 PM
Sunset: 8:13 PM
Daylight: 13 hrs 38 mins
Moonrise: 9:08 AM
Moon Transit: 4:31 PM
Moonset: 11:50 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.4%

Best Times for Fishing or Hunting

Major Periods

2:32 AM - 5:02 AM
4:01 PM - 6:31 PM

Minor Periods

12:00 AM - 12:00 AM
8:38 AM - 10:08 AM

Action Rating: 2 out of 5

Wednesday, May 20, 2026

Weather Forecast

Patchy rain nearby
88.9°F
76.6°F
81.7°F
76%
0.17 in
87%
0%
14.8 mph
9.8


Air Quality

AQI: 1 - Good
PM2.5: 9.87 μg/m3
PM10: 14.73 μg/m3
Carbon Monoxide: 129.65 μg/m3
Nitrogen Dioxide: 1.62 μg/m3
Sulphur Dioxide: 1.29 μg/m3
Ozone: 60.44 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:23 PM
Sunset: 8:14 PM
Daylight: 13 hrs 39 mins
Moonrise: 10:20 AM
Moon Transit: 5:33 PM
Moonset: 12:50 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.4%

Best Times for Fishing or Hunting

Major Periods

3:36 AM - 6:06 AM
5:03 PM - 7:33 PM

Minor Periods

9:50 AM - 11:20 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Thursday, May 21, 2026

Weather Forecast

Patchy rain nearby
86.1°F
76.9°F
80.6°F
77%
0.01 in
88%
0%
16.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 7.41 μg/m3
PM10: 11.33 μg/m3
Carbon Monoxide: 119.03 μg/m3
Nitrogen Dioxide: 1.76 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 59.08 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 1:23 PM
Sunset: 8:14 PM
Daylight: 13 hrs 40 mins
Moonrise: 11:28 AM
Moon Transit: 6:29 PM
Moonset: 12:41 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.2%

Best Times for Fishing or Hunting

Major Periods

4:35 AM - 7:05 AM
5:59 PM - 8:29 PM

Minor Periods

10:58 AM - 12:28 AM
12:11 AM - 1:41 AM

Action Rating: 3 out of 5

Friday, May 22, 2026

Weather Forecast

Moderate rain
86.6°F
71°F
78.9°F
80%
0.41 in
83%
0%
15.9 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 7.05 μg/m3
PM10: 10.61 μg/m3
Carbon Monoxide: 120.54 μg/m3
Nitrogen Dioxide: 2.73 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 48.54 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 1:23 PM
Sunset: 8:15 PM
Daylight: 13 hrs 41 mins
Moonrise: 12:34 AM
Moon Transit: 7:19 PM
Moonset: 1:22 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

5:28 AM - 7:58 AM
6:49 PM - 9:19 PM

Minor Periods

12:04 AM - 1:34 PM
12:52 AM - 2:22 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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