Marine Weather and Tide Forecast for Galveston, TX

DISCUSSION
Issued at 1147 PM CST Fri Feb 27 2026

This weekend will be featuring mostly sunny skies during the daytime with high temperatures in the upper 70s to mid-80s, but then mostly cloudy skies and areas of fog expected during the overnight hours. Fog will have the greatest chance of forming along the coast as sea fog rolls in from the waters during the overnight and early morning hours. The fog should scatter out through the mid-morning hours, but some patchy sea fog may linger in the coastal waters into the afternoons. The abnormally warm weather should lead to warming ocean temperatures, so sea fog potential does decrease as we head into the new week.

A building upper-level ridge will begin to position itself over eastern Texas Monday into Tuesday leading to even warmer weather with highs in the mid-80s expected by Tuesday with some pockets of upper 80s possible in the Brazos Valley. An upper-level low moving through the Great Basin region will push the aforementioned high pressure to the east on Wednesday. This will set up the upper- level pattern through the remainder of the week: high pressure to the east, troughing to the west, with southwesterly flow aloft between those two features set-up over SE Texas. Forecast uncertainty does increase as we head into the second half of next week as a couple of cold front approach the region. The first will be Wednesday into Thursday, and at this time this front appears to stall near the I-35 Corridor. However, passing weaknesses aloft and increased PWATs will lead to a chance of rain across SE Texas on Wednesday. And if this front ends up making its way deeper into SE Texas, then PoPs will likely increase. Another front may approach the region next weekend as well, but its a bit too soon to get into the details.

Fowler

AVIATION
(12Z TAF Issuance)
Issued at 512 AM CST Sat Feb 28 2026

Satellite shows areas of patchy to dense fog expanding generally over the southern and western locations of Southeast TX. Thus, we will likely continue to see LIFR-MVFR vis and cigs for GLS, LBX, SGR, and HOU. Lower visibilities could also affect IAH and CLL, depending on how far northward the fog moves. Fog is expected to burn off and cigs will scatter out shortly after 14-15Z. However, conditions may be slower to improve over GLS and LBX due to persisting sea fog over the bays and nearshore Gulf waters. Expect SE winds at 6-12 KTS today, becoming light and VRB this evening.
We will once again see low vis and cigs tonight into Sun morning as fog re-develops over portions of Southeast TX.

Cotto

MARINE
Issued at 1147 PM CST Fri Feb 27 2026

Areas of dense sea fog are expected to persist through Saturday morning. The coastal waters, Matagorda Bay, and lower Galveston Bay will have the highest coverage of dense fog, with patchy dense fog expected for the upper Galveston Bay. The fog is expected to retreat from the Bays during the mid-morning hours, but may linger in the coastal waters through the afternoon. Another round of fog is expected Saturday night into Sunday morning. Chance for dense fog is looking lower Sunday night into Monday morning as persistent warm weather aids in rising SSTs, and thus limiting sea fog development.

Otherwise, expect low seas and light onshore winds to prevail into early next week.

Fowler

PRELIMINARY POINT TEMPS/POPS
College Station (CLL) 85 58 83 59 / 0 0 0 0 Houston (IAH) 83 60 81 61 / 0 0 0 0 Galveston (GLS) 73 62 72 63 / 0 0 0 0

HGX WATCHES/WARNINGS/ADVISORIES
TX...Dense Fog Advisory until 9 AM CST this morning for TXZ226-227- 235>238-335>338-436>439.

GM...Dense Fog Advisory until 9 AM CST this morning for GMZ330-335.

Dense Fog Advisory until 11 AM CST this morning for GMZ350-355.