Weather for Port Lavaca, Texas
Current Weather
81°F
Overcast
83.8°F
89.2°F
79%
S 8.7 mph
10 mph
84.3°F
69.2°F
0 in
100%
9 mi
1014 mbar
7.5
Five Day Weather Forecast
Sat
H: 86°F
L: 60°F
Sun
H: 69°F
L: 60°F
Mon
H: 69°F
L: 65°F
Tue
H: 75°F
L: 68°F
Wed
H: 81°F
L: 69°F
Air Quality
AQI:
1 - Good
PM2.5:
10.45 μg/m3
PM10:
14.05 μg/m3
Carbon Monoxide: 126.85 μg/m3
Nitrogen Dioxide: 2.15 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 83 μg/m3
Nitrogen Dioxide: 2.15 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 83 μg/m3
Astronomical
Sunrise: 6:58 AM
Sun Transit: 1:25 PM
Sunset: 7:54 PM
Daylight: 12 hrs 56 mins
Sun Transit: 1:25 PM
Sunset: 7:54 PM
Daylight: 12 hrs 56 mins
Moonrise: 7:29 AM
Moon Transit: 2:31 PM
Moonset: 9:41 PM
Moon Phase: New
Moon Illumination: 1.2%
Moon Transit: 2:31 PM
Moonset: 9:41 PM
Moon Phase: New
Moon Illumination: 1.2%
Best Times for Fishing or Hunting
Major Periods
12:37 AM - 3:07 AM2:01 PM - 4:31 PM
Minor Periods
9:11 PM - 10:41 PM6:59 AM - 8:29 AM
Action Rating: 4 out of 5
Coastal Flood Advisory issued April 18 at 9:52AM CDT until April 19 at 7:00PM CDT by NWS Corpus Christi TX
Effective: Sat April 18, 2026, 9:52 AM
Expires: Sun April 19, 2026, 2:00 AM
* WHAT...Minor coastal flooding expected. * WHERE...Coastal Aransas, Coastal Kleberg, Coastal Nueces, Coastal San Patricio, Aransas Islands, Coastal Refugio, Coastal Calhoun, Nueces Islands and Calhoun Islands Counties. * WHEN...From 4 AM to 7 PM CDT Sunday. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. * ADDITIONAL DETAILS...While the coastal flooding will primarily be driven by high tide influence, gusty post-frontal winds combined with the forecast tide level will allow for some water levels to exceed 2 ft above MSL.
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.
Saturday, April 18, 2026
Weather Forecast
Patchy rain nearby
85.5°F
60.3°F
74.6°F
80%
0.13 in
80%
0%
19.2 mph
8.5
Air Quality
AQI:
1 - Good
PM2.5:
9.55 μg/m3
PM10:
12.72 μg/m3
Carbon Monoxide: 131.97 μg/m3
Nitrogen Dioxide: 1.88 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 83.92 μg/m3
Nitrogen Dioxide: 1.88 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 83.92 μg/m3
Astronomical
Sunrise: 6:58 AM
Sun Transit: 1:25 PM
Sunset: 7:54 PM
Daylight: 12 hrs 56 mins
Sun Transit: 1:25 PM
Sunset: 7:54 PM
Daylight: 12 hrs 56 mins
Moonrise: 7:29 AM
Moon Transit: 2:31 PM
Moonset: 9:41 PM
Moon Phase: New
Moon Illumination: 1.2%
Moon Transit: 2:31 PM
Moonset: 9:41 PM
Moon Phase: New
Moon Illumination: 1.2%
Best Times for Fishing or Hunting
Major Periods
12:37 AM - 3:07 AM2:01 PM - 4:31 PM
Minor Periods
9:11 PM - 10:41 PM6:59 AM - 8:29 AM
Action Rating: 4 out of 5
Sunday, April 19, 2026
Weather Forecast
Patchy rain nearby
69.2°F
59.8°F
64.1°F
65%
0.02 in
89%
0%
21 mph
5.2
Air Quality
AQI:
1 - Good
PM2.5:
7.05 μg/m3
PM10:
7.85 μg/m3
Carbon Monoxide: 154.09 μg/m3
Nitrogen Dioxide: 2.74 μg/m3
Sulphur Dioxide: 1.99 μg/m3
Ozone: 92.64 μg/m3
Nitrogen Dioxide: 2.74 μg/m3
Sulphur Dioxide: 1.99 μg/m3
Ozone: 92.64 μg/m3
Astronomical
Sunrise: 6:57 AM
Sun Transit: 1:25 PM
Sunset: 7:55 PM
Daylight: 12 hrs 58 mins
Sun Transit: 1:25 PM
Sunset: 7:55 PM
Daylight: 12 hrs 58 mins
Moonrise: 8:17 AM
Moon Transit: 3:32 PM
Moonset: 10:54 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%
Moon Transit: 3:32 PM
Moonset: 10:54 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%
Best Times for Fishing or Hunting
Major Periods
1:36 AM - 4:06 AM3:02 PM - 5:32 PM
Minor Periods
10:24 PM - 11:54 PM7:47 AM - 9:17 AM
Action Rating: 2 out of 5
Monday, April 20, 2026
Weather Forecast
Moderate rain
68.5°F
64.9°F
67.1°F
75%
0.36 in
81%
0%
16.3 mph
1.9
Air Quality
AQI:
1 - Good
PM2.5:
6.34 μg/m3
PM10:
7.58 μg/m3
Carbon Monoxide: 154.73 μg/m3
Nitrogen Dioxide: 5.55 μg/m3
Sulphur Dioxide: 2.56 μg/m3
Ozone: 91.2 μg/m3
Nitrogen Dioxide: 5.55 μg/m3
Sulphur Dioxide: 2.56 μg/m3
Ozone: 91.2 μg/m3
Astronomical
Sunrise: 6:56 AM
Sun Transit: 1:25 PM
Sunset: 7:55 PM
Daylight: 13 hrs mins
Sun Transit: 1:25 PM
Sunset: 7:55 PM
Daylight: 13 hrs mins
Moonrise: 9:12 AM
Moon Transit: 4:36 PM
Moonset: 12:03 PM
Moon Phase: Waxing Crescent
Moon Illumination: 10.8%
Moon Transit: 4:36 PM
Moonset: 12:03 PM
Moon Phase: Waxing Crescent
Moon Illumination: 10.8%
Best Times for Fishing or Hunting
Major Periods
2:39 AM - 5:09 AM4:06 PM - 6:36 PM
Minor Periods
12:00 AM - 12:00 AM8:42 AM - 10:12 AM
Action Rating: 2 out of 5
Tuesday, April 21, 2026
Weather Forecast
Moderate rain
74.9°F
68.3°F
71°F
86%
0.5 in
87%
0%
15 mph
6.5
Air Quality
AQI:
1 - Good
PM2.5:
6.25 μg/m3
PM10:
8.35 μg/m3
Carbon Monoxide: 138.48 μg/m3
Nitrogen Dioxide: 2.7 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 99.76 μg/m3
Nitrogen Dioxide: 2.7 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 99.76 μg/m3
Astronomical
Sunrise: 6:55 AM
Sun Transit: 1:25 PM
Sunset: 7:56 PM
Daylight: 13 hrs 1 mins
Sun Transit: 1:25 PM
Sunset: 7:56 PM
Daylight: 13 hrs 1 mins
Moonrise: 10:15 AM
Moon Transit: 5:41 PM
Moonset: 12:03 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.8%
Moon Transit: 5:41 PM
Moonset: 12:03 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.8%
Best Times for Fishing or Hunting
Major Periods
3:44 AM - 6:14 AM5:11 PM - 7:41 PM
Minor Periods
9:45 AM - 11:15 AM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Wednesday, April 22, 2026
Weather Forecast
Patchy rain nearby
80.6°F
69.2°F
74.2°F
80%
0.15 in
89%
0%
15 mph
0
Air Quality
AQI:
1 - Good
PM2.5:
6.85 μg/m3
PM10:
9.3 μg/m3
Carbon Monoxide: 146.6 μg/m3
Nitrogen Dioxide: 3.62 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 84.15 μg/m3
Nitrogen Dioxide: 3.62 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 84.15 μg/m3
Astronomical
Sunrise: 6:54 AM
Sun Transit: 1:24 PM
Sunset: 7:57 PM
Daylight: 13 hrs 3 mins
Sun Transit: 1:24 PM
Sunset: 7:57 PM
Daylight: 13 hrs 3 mins
Moonrise: 11:23 AM
Moon Transit: 6:44 PM
Moonset: 1:06 AM
Moon Phase: Waxing Crescent
Moon Illumination: 28.4%
Moon Transit: 6:44 PM
Moonset: 1:06 AM
Moon Phase: Waxing Crescent
Moon Illumination: 28.4%
Best Times for Fishing or Hunting
Major Periods
4:48 AM - 7:18 AM6:14 PM - 8:44 PM
Minor Periods
10:53 AM - 12:23 AM12:36 AM - 2:06 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.