Marine Forecast
Illustrated map of Lake Travis

Marine forecast

Port Aransas to Matagorda Ship Channel, TX

current wind
12 kt SSE
Gusts
15 kt
Seas
4.3 ft
Period
6 sec
Air
86°F

Observed Tue 1:54 PM | GMZ255

Gusts now
15 kt
Seas now
4.3 ft · 6 sec
Air
86°F
Water
84°F
72-hr peak
18 kt

In brief

At 1:54 pm CDT on Oct 13, 2026, NDBC station AWRT2 (Aransas Wildlife Refuge, TX, 12 miles away) measured wind from the SSE at 12 kt, gusting to 15 kt; buoy 42092 measured seas of 4.3 ft. The NWS forecast for Port Aransas to Matagorda Ship Channel, TX issued at 2:00 pm CDT on Oct 13, 2026 reads, for this afternoon: “Southeast winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet.”

Source: National Weather Service Corpus Christi TX forecast; NDBC observations

Wind forecast · ktPeak 18 kt

0510152025Wed 14Thu 15Fri 160510152025Wed 14Thu 15Fri 16
Sustained GustOct 13-16 | CDT

Seas forecast · ftPeak 4 ft

01234Wed 14Thu 15Fri 1601234Wed 14Thu 15Fri 16
Oct 13-16 | CDT

NWS marine forecast

PeriodForecast
This AfternoonSoutheast winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds.
TonightSoutheast winds around 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds.
WednesdaySoutheast winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds. A slight chance of showers and thunderstorms in the morning.
Wednesday NightSoutheast winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas around 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds.
ThursdaySoutheast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds.
Thursday NightEast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds.
FridayNortheast winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet, building to 4 to 6 feet, occasionally to 8 feet in the afternoon. Showers likely, mainly in the morning.
Friday NightNortheast winds 20 to 25 knots, becoming north 25 to 30 knots after midnight. Seas 5 to 7 feet, occasionally to 9 feet, building to 6 to 9 feet, occasionally to 11 feet after midnight.
SaturdayNortheast winds 25 to 30 knots, diminishing to 15 to 20 knots in the afternoon. Seas 6 to 9 feet, occasionally to 11 feet, subsiding to 5 to 7 feet, occasionally to 9 feet in the afternoon.
Saturday NightNortheast winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet.

Issued Tue 2:00 PM by Corpus Christi TX (product CWFCRP).

TimeWindGustSeasWater
Tue 1:54 PM 12 kt SSE 15 kt — 84°F
Tue 12:54 PM 12 kt SSE 15 kt — 84°F
Tue 11:54 AM 11 kt SSE 15 kt — 84°F
Tue 10:54 AM 12 kt SSE 15 kt — 84°F
Tue 9:54 AM 10 kt SSE 15 kt — 84°F
Tue 8:54 AM 10 kt SSE 12 kt — 84°F
Tue 7:54 AM 9 kt S 13 kt — 84°F
Tue 6:54 AM 9 kt SSE 12 kt — 84°F
Tue 5:54 AM 10 kt S 14 kt — 84°F
Tue 4:54 AM 9 kt S 12 kt — 84°F
Tue 3:54 AM 12 kt S 15 kt — 84°F
Tue 2:54 AM 12 kt S 16 kt — 84°F

Observed Tue 1:54 PM at NDBC buoy AWRT2 (Aransas Wildlife Refuge, TX), 12.5 miles away. Seas from buoy 42092 (Aransas Pass Channel Entrance S, TX (252)), 37.9 miles away, at Tue 2:00 PM.

What is the marine forecast for Port Aransas to Matagorda Ship Channel today?

This Afternoon: Southeast winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds.

Is there a small craft advisory for Port Aransas to Matagorda Ship Channel?

No advisories, warnings or watches are in effect for NWS zone GMZ255 as of the last update on this page. Advisories can be issued at any time; check the current bulletin before leaving the dock.

How high are the waves at Port Aransas to Matagorda Ship Channel right now?

Seas are running 4.3 ft at a 6-second period, measured at NDBC buoy AWRT2 Tue 1:54 PM, 12.5 miles from this zone. The forecast peaks at 4.0 ft Wed 7 AM.

What is the water temperature at Port Aransas to Matagorda Ship Channel?

The nearest buoy read 84°F (29°C) at Tue 1:54 PM. Sea surface temperature at a single buoy can differ by several degrees from the water at a beach or in a shallow bay nearby.

What do the wind speeds in knots mean?

One knot is 1.15 mph. The National Weather Service issues a small craft advisory for sustained winds of roughly 22–33 knots or hazardous seas, a gale warning at 34–47 knots, and a storm warning at 48 knots and above. Exact advisory thresholds vary by forecast office and by water body — a bay reaches dangerous chop at a lower wind speed than open ocean.

Where does this forecast come from?

The forecast text is the National Weather Service's own marine bulletin for zone GMZ255, issued by Corpus Christi TX, reproduced in full. The wind and seas charts are drawn from the NWS gridded forecast for a point inside the zone. Observations come from the nearest reporting NDBC buoy. We are not affiliated with NOAA or the National Weather Service.

Forecast: NOAA/NWS product CWFCRP, issued Tue 2:00 PM. Observations: NOAA National Data Buoy Center station AWRT2, read Tue 1:54 PM. Retrieved Oct 13, 2:42 PM. Conditions offshore change faster than any page can be rebuilt, so check the current NWS bulletin and your own instruments before going out.