Water Temperature of San Antonio Bay in Austwell, TX

Current Water Temperature

70.3°F 21.3°C
Comfortable Ideal for Swimming
70.3°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Pleasant and refreshing. Ideal for recreational swimming, triathlons, and active water recreation without thermal gear.

Measurement Time: Sunday, November 15, 2026, 12:00 AM CST

Temperature Locations

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Local Points of Interest

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

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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)

Marine Weather for San Antonio Bay in Austwell, TX

Marine Weather

Coastal & Marine Conditions
Open-Meteo Marine
2.3ft 0.7 m
Light Chop Gentle waves and light chop, ideal for water activities.
Wave Period 4.4s
Wave Direction 131° SE
Swell Waves
1.4 ft
4.5s • 114° ESE
Wind Waves / Chop
1.5 ft
2.8s • 138° SE
Ocean Current
0.2 mph
0.2 kn • 270° W
Sea Surface Temp
73.8°F
Equivalent: 23.2°C

High & Low Tide Forecast

Falling (Ebb)
Next Tide: Low 5:00 AM (-0.4 ft)
0.0 ft (MSL) Sat, Nov 14 6 PM 12 AM 6 AM 12 PM 6 PM 12 AM Sun, Nov 15 Mon, Nov 16 ▼ Low 5:00 AM -0.4 ft ▲ High 2:00 PM +0.9 ft ▼ Low 5:00 PM +0.8 ft ▼ Low 5:00 AM -0.5 ft NOW
Low Tide Sun, Nov 15
5:00 AM
-0.4 ft (-0.12 m)
High Tide Sun, Nov 15
2:00 PM
+0.9 ft (0.28 m)
Low Tide Sun, Nov 15
5:00 PM
+0.8 ft (0.23 m)
Low Tide Mon, Nov 16
5:00 AM
-0.5 ft (-0.16 m)
Open-Meteo Tidal Model (Mean Sea Level MSL datum) • Times in station local timezone.

5-Day Marine Wave Forecast

Today
Nov 15
2.4 ft
6.3s • SE
Mon
Nov 16
2.8 ft
6s • ENE
Tue
Nov 17
3.2 ft
6.1s • E
Wed
Nov 18
2.9 ft
5.7s • ESE
Thu
Nov 19
2.6 ft
5.7s • E

Weather for Austwell, Texas

Current Weather

67.6°F
Mainly Clear
Conditions: Mainly Clear
Humidity: 87%
Feels Like: 70.7°F
Wind: ENE 4.2 mph
Wind Gusts: 5.6 mph
Pressure: 29.97 in
Precipitation: 0 in
Cloud Cover: 30%
Visibility: 8.8 mi
UV Index: 0

Five-Day Weather Forecast

Moderate Rain Showers
Sun
H: 76°F
L: 60°F
Overcast
Mon
H: 62°F
L: 55°F
Overcast
Tue
H: 70°F
L: 59°F
Overcast
Wed
H: 74°F
L: 69°F
Light Drizzle
Thu
H: 74°F
L: 70°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
10.5 μg/m³
Good
PM10
15.8 μg/m³
Good
Ozone (O3)
96 μg/m³
Photochemical
NO2
0.6 μg/m³
Nitrogen Dioxide
SO2
0.7 μg/m³
Sulfur Dioxide
CO
121 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 44m daylight
Sunrise 6:49 AM
Solar Noon 12:11 PM
Sunset 5:34 PM
Moon
Waxing Crescent • 31%
Moonrise 12:04 PM
Transit 5:25 PM
Moonset 10:52 PM

Best Times for Fishing or Hunting

Major Periods

4:33 AM - 7:03 AM
4:55 PM - 7:25 PM

Minor Periods

11:34 AM - 1:04 PM
10:22 PM - 11:52 PM
Action Rating:
Good Action 3/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Moderate Rain Showers
Average Temperature: 70°F
Average Humidity: 89%
Chance of Rain: 56%
Wind: 17.8 mph
UV Index: 5.2

Air Quality

EPA Index 1 • Good
PM2.5
6.1 μg/m³
Good
PM10
9.6 μg/m³
Good
Ozone (O3)
85.2 μg/m³
Photochemical
NO2
1 μg/m³
Nitrogen Dioxide
SO2
0.5 μg/m³
Sulfur Dioxide
CO
121.1 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 44m daylight
Sunrise 6:49 AM
Solar Noon 12:11 PM
Sunset 5:34 PM
Moon
Waxing Crescent • 31%
Moonrise 12:04 PM
Transit 5:25 PM
Moonset 10:52 PM

Best Times for Fishing or Hunting

Major Periods

4:33 AM - 7:03 AM
4:55 PM - 7:25 PM

Minor Periods

11:34 AM - 1:04 PM
10:22 PM - 11:52 PM
Action Rating:
Good Action 3/5
Monday, November 16, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 57.7°F
Average Humidity: 86%
Chance of Rain: 10%
Wind: 18.4 mph
UV Index: 1.8

Air Quality

EPA Index 1 • Good
PM2.5
3.6 μg/m³
Good
PM10
3.9 μg/m³
Good
Ozone (O3)
65.1 μg/m³
Photochemical
NO2
3.4 μg/m³
Nitrogen Dioxide
SO2
1.1 μg/m³
Sulfur Dioxide
CO
134 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 43m daylight
Sunrise 6:50 AM
Solar Noon 12:12 PM
Sunset 5:33 PM
Moon
First Quarter • 42%
Moonrise 12:38 PM
Transit 6:10 PM
Moonset 11:48 PM

Best Times for Fishing or Hunting

Major Periods

5:18 AM - 7:48 AM
5:40 PM - 8:10 PM

Minor Periods

12:08 PM - 1:38 PM
11:18 PM - 12:48 AM
Action Rating:
Good Action 3/5
Tuesday, November 17, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 64.8°F
Average Humidity: 73%
Chance of Rain: 3%
Wind: 18.4 mph
UV Index: 4.7

Air Quality

EPA Index 1 • Good
PM2.5
8.9 μg/m³
Good
PM10
10.9 μg/m³
Good
Ozone (O3)
73.8 μg/m³
Photochemical
NO2
3.6 μg/m³
Nitrogen Dioxide
SO2
1.6 μg/m³
Sulfur Dioxide
CO
141.4 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 42m daylight
Sunrise 6:51 AM
Solar Noon 12:12 PM
Sunset 5:33 PM
Moon
First Quarter • 54%
Moonrise 1:09 PM
Transit 6:53 PM
Moonset 1:34 AM

Best Times for Fishing or Hunting

Major Periods

6:01 AM - 8:31 AM
6:23 PM - 8:53 PM

Minor Periods

1:04 AM - 2:34 AM
12:39 PM - 2:09 PM
Action Rating:
Fair Action 2/5
Wednesday, November 18, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 71.4°F
Average Humidity: 76%
Chance of Rain: 10%
Wind: 16.8 mph
UV Index: 4.3

Air Quality

EPA Index 2 • Moderate
PM2.5
9.3 μg/m³
Good
PM10
14.6 μg/m³
Good
Ozone (O3)
84.2 μg/m³
Photochemical
NO2
1.4 μg/m³
Nitrogen Dioxide
SO2
0.7 μg/m³
Sulfur Dioxide
CO
125.6 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 41m daylight
Sunrise 6:52 AM
Solar Noon 12:12 PM
Sunset 5:33 PM
Moon
First Quarter • 65%
Moonrise 1:39 PM
Transit 7:35 PM
Moonset 12:43 AM

Best Times for Fishing or Hunting

Major Periods

6:44 AM - 9:14 AM
7:05 PM - 9:35 PM

Minor Periods

12:13 AM - 1:43 AM
1:09 PM - 2:39 PM
Action Rating:
Good Action 3/5
Thursday, November 19, 2026

Weather Forecast

Conditions: Light Drizzle
Average Temperature: 71.8°F
Average Humidity: 79%
Chance of Rain: 11%
Wind: 18.7 mph
UV Index: 5

Air Quality

EPA Index 2 • Moderate
PM2.5
9.3 μg/m³
Good
PM10
15.2 μg/m³
Good
Ozone (O3)
79.3 μg/m³
Photochemical
NO2
1 μg/m³
Nitrogen Dioxide
SO2
0.6 μg/m³
Sulfur Dioxide
CO
142.7 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 40m daylight
Sunrise 6:53 AM
Solar Noon 12:12 PM
Sunset 5:32 PM
Moon
Waxing Gibbous • 75%
Moonrise 2:08 PM
Transit 8:22 PM
Moonset 1:39 AM

Best Times for Fishing or Hunting

Major Periods

7:27 AM - 9:57 AM
7:52 PM - 10:22 PM

Minor Periods

1:09 AM - 2:39 AM
1:38 PM - 3:08 PM
Action Rating:
Fair Action 2/5
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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