Marine Weather Net

Baffin Bay to Port Mansfield, TX Marine Forecast


TONIGHT

E
WINDS
5 - 10
KNOTS

TUESDAY

E
WINDS
5 - 10
KNOTS

TUESDAY NIGHT

SE
WINDS
10
KNOTS

WEDNESDAY

S
WINDS
5 KNOTS

The Marine Weather Forecast In Detail:
GMZ155 Forecast Issued: 1137 AM CST Mon Nov 03 2025

Tonight...East Winds 5 To 10 Knots. Seas 2 To 3 Feet. Wave Detail: East 2 Feet At 6 Seconds.
Tuesday...East Winds 5 To 10 Knots. Seas 2 To 3 Feet. Wave Detail: East 2 Feet At 5 Seconds.
Tuesday Night...Southeast Winds Around 10 Knots, Becoming South After Midnight. Seas 2 To 3 Feet. Wave Detail: East 2 Feet At 7 Seconds.
Wednesday...South Winds Around 5 Knots, Becoming Southeast In The Afternoon. Seas 2 To 3 Feet. Wave Detail: East 2 Feet At 7 Seconds.
Wednesday Night...Southeast Winds Around 10 Knots, Becoming 5 To 10 Knots After Midnight. Seas 2 To 3 Feet. Wave Detail: East 2 Feet At 7 Seconds.
Thursday...Southeast Winds 5 To 10 Knots. Seas 2 To 3 Feet. Wave Detail: East 2 Feet At 6 Seconds.
Thursday Night...Southeast Winds 10 To 15 Knots, Becoming South After Midnight. Seas 2 To 4 Feet.
Friday...South Winds 5 To 10 Knots, Becoming Southeast Late In The Afternoon. Seas 3 To 4 Feet.
Friday Night...South Winds Around 10 Knots. Seas 3 To 4 Feet.
Saturday...South Winds 5 To 10 Knots, Becoming Southeast Late In The Afternoon. Seas 2 To 3 Feet.
Saturday Night...South Winds 10 To 15 Knots. Seas 2 To 3 Feet.
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Area Forecast Discussion
National Weather Service Brownsville TX
1135am CST Monday Nov 3 2025

Issued at 1130am CST Monday Nov 3 2025

A rain-free forecast is expected for the duration of this forecast period for Deep South Texas and the Rio Grande Valley. While temperatures are expected to be close to normal for today and tomorrow. Once the winds shift back towards the southeast, warm air advection will occur over the region. This will in turn cause the high temperatures to increase over the region by the mid week to the upper 80s and lower 90s. By the end of the week, the high temperatures for most of the region is expected to be in the low to mid 90s.

Near the end of the forecast period, there are some models that bring a frontal boundary close to the area and some models have to front move through the area and bring some slightly cooler temperatures. However, given the timing of the front and the uncertainty in the forecast at this point, it will be best to keep hopes of lower temperatures in check for the time being. Further forecast shifts will have to keep track of the trends for the forecast and see how this frontal boundary situation changes.

Marine
Issued at 1130am CST Monday Nov 3 2025

Favorable marine conditons are expected through the forecast period into next week with light to moderate onshore flow and low to moderate seas.

NOAA Brownsville TX Office: Watches - Warnings - Advisories
TX...None. GM...None.