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Warmest beach in Texas in September

84 coastal locations in Texas ranked by their typical September sea temperature. State-wide average in September: 29.5°C.

Warmest in September

Port Lavaca, Lavaca Causeway, Matagorda Bay

29.8°C

State September average

29.5°C

across 84 coastal locations in Texas

Vs annual mean

+5.7°C

above the year-round state average

What the Texas water feels like in September

This water temperature is comparable to that of a swimming pool, but it might be higher than most open water swimmers prefer for serious swimming. Make sure to drink plenty of water before and after swimming and don't wear a wetsuit to avoid overheating.

Texas monthly average 16.0°C to 30.1°C
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  • Warmest month August 30.1°C
  • Coldest month February 16.0°C
  • Annual mean 23.8°C
  • Months above 20°C 8 of 12

Where September fits in the year

September sits inside the state pattern shown on the left. Browse a different month for a fresh ranking.

Texas sea temperature map (live)

Today's reading at every Texas beach we track. The list below uses the typical September mean from a decade of daily history.

Zoom in to see individual locations. Click a pin for water temperatures. View list →
°C -2 0 1 3 5 7 9 11 13 15 17 19 21 24 27 30 35

Top 50 warmest Texas beaches in September

Sorted by typical September mean. Click any beach for the full location page.

# Location September mean
1 Port Lavaca, Lavaca Causeway, Matagorda Bay Texas 29.8°C
2 Seadrift, San Antonio Bay Texas 29.8°C
3 Matagorda Bay Entrance Channel Texas 29.7°C
4 Realitos Peninsula Texas 29.7°C
5 Aransas Wildlife Refuge (TCOON) Texas 29.7°C
6 Copano Bay State Fishing Pier Texas 29.7°C
7 Aransas, Aransas Pass Texas 29.7°C
8 Corpus Christi, Gulf Of Mexico Texas 29.7°C
9 Corpus Christi Naval Air Station Texas 29.7°C
10 Nueces Bay (TCOON) Texas 29.7°C
11 Packery Channel Texas 29.7°C
12 Port Aransas (H. Caldwell Pier) Texas 29.7°C
13 Port Ingleside, Corpus Christi Bay Texas 29.7°C
14 Texas State Aquarium, Corpus Christi Texas 29.7°C
15 White Point Bay Texas 29.7°C
16 Matagorda City (TCOON) Texas 29.6°C
17 Sargent (TCOON) Texas 29.6°C
18 Padre Island, Brazos Santiago Pass Texas 29.6°C
19 Port Lavaca Texas 29.6°C
20 Port Oconnor Texas 29.6°C
21 Laguna Madre Texas 29.6°C
22 North Padre Island Texas 29.6°C
23 Padre Island Texas 29.6°C
24 Port Mansfield Texas 29.6°C
25 Freeport, DOW Barge Canal Texas 29.6°C
Show 25 more ▸
26 Freeport SPIP, Freeport Harbor Texas 29.6°C
27 USCG Freeport Texas 29.6°C
28 Palacios Texas 29.6°C
29 Aransas Pass Texas 29.6°C
30 Corpus Christi Texas 29.6°C
31 Mustang Island Texas 29.6°C
32 Port Aransas Texas 29.6°C
33 Rockport Texas 29.6°C
34 Arroyo City Texas 29.5°C
35 Matagorda Texas 29.5°C
36 Port Isabel Texas 29.5°C
37 South Padre Island Texas 29.5°C
38 Freeport Texas 29.5°C
39 Surfside Beach Texas 29.5°C
40 Laguna Vista Texas 29.5°C
41 Brownsville Texas 29.5°C
42 Galveston Pier 21, Galveston Channel Texas 29.5°C
43 Galveston Pleasure Pier, Gulf Of Mexico Texas 29.5°C
44 Galveston Railroad Bridge Texas 29.5°C
45 Jamaica Beach, West Bay, Galveston Bay, Texas Texas 29.5°C
46 Port Bolivar, Galveston Bay Texas 29.5°C
47 Texas City, Turning Basin, Galveston Bay, Texas Texas 29.5°C
48 Alligator Point, West Bay, Texas Texas 29.5°C
49 Christmas Bay, Texas Texas 29.5°C
50 Clear Lake, Galveston Bay Texas 29.5°C

Coldest 10 in Texas in September

Same data the other way.

# Location September mean
1 Port Arthur Texas 29.3°C
2 Anahuac Texas 29.3°C
3 Trinity Bay Texas 29.3°C
4 Mesquite Point, Sabine Pass Texas 29.4°C
5 Orange (Old Navy Base) Texas 29.4°C
6 Rainbow Bridge, Neches River Texas 29.4°C
7 Sabine Pass (jetty), Texas Texas 29.4°C
8 Sabine Pass (north) Texas 29.4°C
9 Texas Point, Sabine Pass Texas 29.4°C
10 Clear Lake Shores Texas 29.4°C

Other US states

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