Water Temperature of the Port Isabel Channel in Port Isabel, TX

Current Water Temperature

77.9°F

Measurement Time: Monday, May 4, 2026, 7:30 AM CDT

Today's Tides

 High: May 4, 9:00 AM, 1.6 ft
Low: May 4, 11:45 PM, -0.2 ft

Temperature Locations

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Local Points of Interest

Port Isabel Turning Basin; Mighy Minnow Marina; Long Island; South Padre Island;

Port Isabel Channel

Station Name: Port Isabel
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 20 feet

Sensor Depth: -5 feet

Nearest Address:
34839 Port Rd
Port Isabel, TX 78578
Cameron County

GPS Coordinates: 26.061167, -97.215528

Nearby Water Temperatures

Laguna Madre, South Padre Island, TX (3.1 mi)
Brownsville Ship Channel, South Padre Island, TX (3.8 mi)
Laguna Madre, Bayview, TX (14.6 mi)
Rio Grande, Los Indios, TX (34.1 mi)
Rio Grande, Mercedes, TX (42.5 mi)
Laguna Madre, Armstrong, TX (53.5 mi)
Rio Grande, Mission, TX (69.6 mi)
Rio Grande, Mission, TX (71.7 mi)
Rio Grande, Mission, TX (74.3 mi)
Baffin Bay, Kingsville, TX (86.2 mi)
Gulf Intracoastal Waterway, Corpus Christi, TX (98.5 mi)
Rio Grande, Rio Grande City, TX (100.1 mi)
Packery Channel, Corpus Christi, TX (108.7 mi)
Rio Grande, Roma, TX (114.1 mi)
Corpus Christi Bay, Corpus Christi, TX (121.4 mi)

Weather for Port Isabel, Texas

Current Weather

73°F
Overcast
Overcast
76.9°F
79.1°F
79%
SE 13.9 mph
21.5 mph
75.7°F
68.4°F
0 in
100%
9 mi
1015 mbar
0

Five Day Weather Forecast

Partly Cloudy
Mon
H: 78°F
L: 75°F
Patchy rain nearby
Tue
H: 82°F
L: 75°F
Patchy rain nearby
Wed
H: 83°F
L: 77°F
Patchy rain nearby
Thu
H: 81°F
L: 75°F
Patchy rain nearby
Fri
H: 82°F
L: 75°F

Air Quality

AQI: 1 - Good
PM2.5: 10.06 μg/m3
PM10: 14.66 μg/m3
Carbon Monoxide: 141.56 μg/m3
Nitrogen Dioxide: 1.06 μg/m3
Sulphur Dioxide: 0.76 μg/m3
Ozone: 115 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 1:25 PM
Sunset: 8:02 PM
Daylight: 13 hrs 13 mins
Moonrise: 11:04 PM
Moon Transit: 3:22 AM
Moonset: 8:34 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.0%

Best Times for Fishing or Hunting

Major Periods

2:52 AM - 5:22 AM
2:18 PM - 4:48 PM

Minor Periods

12:00 AM - 12:00 AM
8:04 AM - 9:34 AM

Action Rating: 2 out of 5

Monday, May 4, 2026

Weather Forecast

Partly Cloudy
77.6°F
75.2°F
76°F
77%
0 in
0%
0%
16.8 mph
10.4


Air Quality

AQI: 1 - Good
PM2.5: 8.81 μg/m3
PM10: 13 μg/m3
Carbon Monoxide: 139.68 μg/m3
Nitrogen Dioxide: 1.59 μg/m3
Sulphur Dioxide: 0.81 μg/m3
Ozone: 111.96 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 1:25 PM
Sunset: 8:02 PM
Daylight: 13 hrs 13 mins
Moonrise: 11:04 PM
Moon Transit: 3:22 AM
Moonset: 8:34 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.0%

Best Times for Fishing or Hunting

Major Periods

2:52 AM - 5:22 AM
2:18 PM - 4:48 PM

Minor Periods

12:00 AM - 12:00 AM
8:04 AM - 9:34 AM

Action Rating: 2 out of 5

Tuesday, May 5, 2026

Weather Forecast

Patchy rain nearby
81.8°F
75.4°F
78.7°F
82%
0.01 in
89%
0%
22.4 mph
10.1


Air Quality

AQI: 1 - Good
PM2.5: 10.35 μg/m3
PM10: 14.59 μg/m3
Carbon Monoxide: 152.68 μg/m3
Nitrogen Dioxide: 1.51 μg/m3
Sulphur Dioxide: 0.75 μg/m3
Ozone: 91.64 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 1:25 PM
Sunset: 8:03 PM
Daylight: 13 hrs 14 mins
Moonrise: 12:04 AM
Moon Transit: 4:13 AM
Moonset: 9:23 AM
Moon Phase: Waning Gibbous
Moon Illumination: 79.8%

Best Times for Fishing or Hunting

Major Periods

3:43 AM - 6:13 AM
3:09 PM - 5:39 PM

Minor Periods

8:53 AM - 10:23 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, May 6, 2026

Weather Forecast

Patchy rain nearby
82.5°F
77.3°F
79.5°F
88%
0.01 in
79%
0%
22.8 mph
6.9


Air Quality

AQI: 1 - Good
PM2.5: 15.15 μg/m3
PM10: 19.37 μg/m3
Carbon Monoxide: 187.96 μg/m3
Nitrogen Dioxide: 1.77 μg/m3
Sulphur Dioxide: 0.88 μg/m3
Ozone: 92.32 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 1:25 PM
Sunset: 8:03 PM
Daylight: 13 hrs 15 mins
Moonrise: 12:55 AM
Moon Transit: 5:05 AM
Moonset: 10:17 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.0%

Best Times for Fishing or Hunting

Major Periods

4:35 AM - 7:05 AM
4:00 PM - 6:30 PM

Minor Periods

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

Action Rating: 3 out of 5

Thursday, May 7, 2026

Weather Forecast

Patchy rain nearby
81.3°F
75.4°F
78.7°F
89%
0.18 in
89%
0%
20.6 mph
9.6


Air Quality

AQI: 2 - Moderate
PM2.5: 17.31 μg/m3
PM10: 22.24 μg/m3
Carbon Monoxide: 142.11 μg/m3
Nitrogen Dioxide: 2.52 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 87.36 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 1:25 PM
Sunset: 8:04 PM
Daylight: 13 hrs 16 mins
Moonrise: 12:41 AM
Moon Transit: 5:55 AM
Moonset: 11:12 AM
Moon Phase: Waning Gibbous
Moon Illumination: 59.1%

Best Times for Fishing or Hunting

Major Periods

5:25 AM - 7:55 AM
4:50 PM - 7:20 PM

Minor Periods

10:42 AM - 12:12 AM
12:11 AM - 1:41 AM

Action Rating: 2 out of 5

Friday, May 8, 2026

Weather Forecast

Patchy rain nearby
82.3°F
75°F
78°F
88%
0.16 in
86%
0%
20.1 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 12.9 μg/m3
PM10: 17.57 μg/m3
Carbon Monoxide: 147.34 μg/m3
Nitrogen Dioxide: 2.31 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 76.15 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 1:25 PM
Sunset: 8:04 PM
Daylight: 13 hrs 18 mins
Moonrise: 1:23 AM
Moon Transit: 6:44 AM
Moonset: 12:09 AM
Moon Phase: Last Quarter
Moon Illumination: 47.9%

Best Times for Fishing or Hunting

Major Periods

6:14 AM - 8:44 AM
5:37 PM - 8:07 PM

Minor Periods

11:39 AM - 1:09 PM
12:53 AM - 2:23 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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