Water Temperature of Matagorda Bay in Port O'Connor, TX

Current Water Temperature

85.1°F

Measurement Time: Wednesday, May 20, 2026, 4:18 PM CDT

Today's Tides

Low: May 20, 2:49 AM, -0.1 ft
 High: May 20, 4:03 PM, 1.1 ft

Temperature Locations

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Local Points of Interest

Port O'Connor Jetty; Espiritu Santo Bay; Gulf of Mexico

Matagorda Bay

Station Name: Port O'Connor
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 0 feet

Sensor Depth: -2 feet

Nearest Address:
S Washington Blvd
Port O'Connor, TX 97982
Calhoun County

GPS Coordinates: 28.445861, -96.395556

Nearby Water Temperatures

Matagorda Ship Channel, Port O'Connor, TX (4.2 mi)
Lavaca Bay, Port Lavaca, TX (18.7 mi)
Tres Palacios Bay, Palacios, TX (19.1 mi)
San Antonio Bay, Seadrift, TX (19.4 mi)
San Antonio Bay, Austwell, TX (28.6 mi)
Gulf Intracoastal Waterway, Matagorda, TX (34.5 mi)
East Matagorda Bay, Matagorda, TX (36.6 mi)
Aransas Bay, Rockport, TX (49.3 mi)
Gulf Intracoastal Waterway, Sargent, TX (52.3 mi)
Aransas Pass, Port Aransas, TX (57.5 mi)
Corpus Christi Channel, Port Aransas, TX (58.8 mi)
San Antonio River, Goliad, TX (61.7 mi)
Corpus Christi Bay, Portland, TX (66.9 mi)
Brazos River, Freeport, TX (68.9 mi)
Corpus Christi Bay, Corpus Christi, TX (74.8 mi)

Weather for Port O'Connor, Texas

Current Weather

86.2°F
Sunny
Sunny
92°F
92°F
60%
SE 15.4 mph
17.8 mph
86.2°F
70.9°F
0 in
20%
6 mi
1013 mbar
4.5

Five Day Weather Forecast

Patchy rain nearby
Wed
H: 88°F
L: 77°F
Patchy rain nearby
Thu
H: 87°F
L: 77°F
Moderate rain
Fri
H: 89°F
L: 70°F
Moderate rain
Sat
H: 86°F
L: 70°F
Patchy rain nearby
Sun
H: 86°F
L: 74°F

Air Quality

PM2.5: 5.75 μg/m3
PM10: 7.85 μg/m3
Carbon Monoxide: 115.85 μg/m3
Nitrogen Dioxide: 2.45 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 57 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:22 PM
Sunset: 8:12 PM
Daylight: 13 hrs 40 mins
Moonrise: 10:17 AM
Moon Transit: 5:31 PM
Moonset: 12:49 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.4%

Best Times for Fishing or Hunting

Major Periods

3:38 AM - 6:08 AM
5:01 PM - 7:31 PM

Minor Periods

9:47 AM - 11:17 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Coastal Flood Advisory issued May 19 at 11:23PM CDT until May 20 at 6:00PM CDT by NWS Corpus Christi TX

Effective: Tue May 19, 2026, 11:23 PM
Expires: Wed May 20, 2026, 6:00 PM

* WHAT...Minor coastal flooding expected. * WHERE...Coastal Aransas, Coastal Nueces, Coastal San Patricio, Coastal Refugio and Coastal Calhoun Counties. * WHEN...From 7 AM to 6 PM CDT Wednesday. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. * ADDITIONAL DETAILS...High tides today generally mid morning on ocean-facing beaches and mid-afternoon on bay-facing beaches.

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.


Coastal Flood Advisory issued May 19 at 11:23PM CDT until May 20 at 6:00PM CDT by NWS Corpus Christi TX

Effective: Tue May 19, 2026, 11:23 PM
Expires: Wed May 20, 2026, 6:00 PM

* WHAT...For the High Rip Current Risk, dangerous rip currents. For the Coastal Flood Advisory, minor coastal flooding expected. * WHERE...Aransas Islands, Kleberg Islands, Nueces Islands and Calhoun Islands Counties. * WHEN...For the High Rip Current Risk, through Wednesday afternoon. For the Coastal Flood Advisory, from 7 AM to 6 PM CDT Wednesday. * 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. * ADDITIONAL DETAILS...High tides today generally mid-morning on the ocean-facing beaches.

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 19 at 11:23PM CDT until May 20 at 6:00PM CDT by NWS Corpus Christi TX

Effective: Tue May 19, 2026, 11:23 PM
Expires: Wed May 20, 2026, 6:00 PM

* WHAT...For the High Rip Current Risk, dangerous rip currents. For the Coastal Flood Advisory, minor coastal flooding expected. * WHERE...Aransas Islands, Kleberg Islands, Nueces Islands and Calhoun Islands Counties. * WHEN...For the High Rip Current Risk, through Wednesday afternoon. For the Coastal Flood Advisory, from 7 AM to 6 PM CDT Wednesday. * 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. * ADDITIONAL DETAILS...High tides today generally mid-morning on the ocean-facing beaches.

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.


Flood Watch issued May 20 at 11:30AM CDT until May 25 at 7:00PM CDT by NWS Corpus Christi TX

Effective: Wed May 20, 2026, 11:30 AM
Expires: Wed May 20, 2026, 7:30 PM

* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...All of South Texas * WHEN...From late tonight through Monday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Due to recent rainfall, the 3 hour flash flood guidance has fallen below 2.5" for much of the eastern half of South Texas with some spots below 0.50". Locations out west are sitting at 2.5-3" in the 3 hour flash flood guidance. With the expectation of more rain this week and into the weekend, flooding will be possible, especially within the strongest thunderstorms. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.


Flood Watch issued May 20 at 12:41PM CDT until May 25 at 7:00AM CDT by NWS Houston/Galveston TX

Effective: Wed May 20, 2026, 12:41 PM
Expires: Thu May 21, 2026, 7:15 AM

* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...Portions of south central and southeast Texas, including the following areas, in south central Texas, Coastal Jackson and Inland Jackson. In southeast Texas, Brazoria Islands, Coastal Brazoria, Coastal Galveston, Coastal Matagorda, Fort Bend, Galveston Island, Inland Brazoria, Inland Galveston, Inland Matagorda, Matagorda Islands and Wharton. * WHEN...From Thursday morning through Monday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Areas along the coast, especially Matagorda and Brazoria Counties, received 4-6+" between Tuesday night and Wednesday morning. These areas are expected to see another round of moderate to heavy rainfall on Thursday and Friday which brings the potential for flash flooding. The current extent of this Flood Watch includes areas with a flood threat within the next 24-48 hours, so the watch could be expanded in area and as the rainfall threat evolves going into the weekend. Rainfall rates are expected to peak in the 3-4+" per hour range in the heaviest downpours. Additional rainfall totals through Friday are anticipated to be in the 2-4" range along the coast. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.


Wednesday, May 20, 2026

Weather Forecast

Patchy rain nearby
87.6°F
77.3°F
81°F
79%
0.02 in
89%
0%
16.3 mph
6.1


Air Quality

AQI: 1 - Good
PM2.5: 7.68 μg/m3
PM10: 11.02 μg/m3
Carbon Monoxide: 127.41 μg/m3
Nitrogen Dioxide: 2.11 μg/m3
Sulphur Dioxide: 1.29 μg/m3
Ozone: 54.76 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:22 PM
Sunset: 8:12 PM
Daylight: 13 hrs 40 mins
Moonrise: 10:17 AM
Moon Transit: 5:31 PM
Moonset: 12:49 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.4%

Best Times for Fishing or Hunting

Major Periods

3:38 AM - 6:08 AM
5:01 PM - 7:31 PM

Minor Periods

9:47 AM - 11:17 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Thursday, May 21, 2026

Weather Forecast

Patchy rain nearby
86.6°F
77.2°F
80.3°F
78%
0.07 in
88%
0%
16.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 6.24 μg/m3
PM10: 8.73 μg/m3
Carbon Monoxide: 116.25 μg/m3
Nitrogen Dioxide: 2.54 μg/m3
Sulphur Dioxide: 1.26 μg/m3
Ozone: 51.36 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 1:22 PM
Sunset: 8:13 PM
Daylight: 13 hrs 41 mins
Moonrise: 11:26 AM
Moon Transit: 6:27 PM
Moonset: 12:40 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.2%

Best Times for Fishing or Hunting

Major Periods

4:37 AM - 7:07 AM
5:57 PM - 8:27 PM

Minor Periods

10:56 AM - 12:26 AM
12:10 AM - 1:40 AM

Action Rating: 3 out of 5

Friday, May 22, 2026

Weather Forecast

Moderate rain
88.7°F
69.6°F
79.1°F
77%
0.4 in
72%
0%
18.8 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 5.67 μg/m3
PM10: 7.79 μg/m3
Carbon Monoxide: 122.19 μg/m3
Nitrogen Dioxide: 2.62 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 49.76 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 1:22 PM
Sunset: 8:14 PM
Daylight: 13 hrs 42 mins
Moonrise: 12:32 AM
Moon Transit: 7:18 PM
Moonset: 1:21 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

5:30 AM - 8:00 AM
6:48 PM - 9:18 PM

Minor Periods

12:02 AM - 1:32 PM
12:51 AM - 2:21 AM

Action Rating: 2 out of 5

Saturday, May 23, 2026

Weather Forecast

Moderate rain
85.5°F
70.4°F
78.7°F
85%
0.51 in
86%
0%
17.2 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 6.21 μg/m3
PM10: 8.6 μg/m3
Carbon Monoxide: 126.31 μg/m3
Nitrogen Dioxide: 4.33 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 43.38 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 1:22 PM
Sunset: 8:14 PM
Daylight: 13 hrs 43 mins
Moonrise: 1:33 PM
Moon Transit: 8:04 PM
Moonset: 1:56 AM
Moon Phase: First Quarter
Moon Illumination: 44.4%

Best Times for Fishing or Hunting

Major Periods

6:18 AM - 8:48 AM
7:34 PM - 10:04 PM

Minor Periods

1:03 PM - 2:33 PM
1:26 AM - 2:56 AM

Action Rating: 3 out of 5

Sunday, May 24, 2026

Weather Forecast

Patchy rain nearby
85.7°F
73.7°F
79.1°F
78%
0.16 in
88%
0%
11.9 mph
6


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 1:22 PM
Sunset: 8:15 PM
Daylight: 13 hrs 44 mins
Moonrise: 2:32 PM
Moon Transit: 8:47 PM
Moonset: 2:28 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

7:03 AM - 9:33 AM
8:17 PM - 10:47 PM

Minor Periods

2:02 PM - 3:32 PM
1:58 AM - 3:28 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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