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Coldest beach in Louisiana

82 coastal locations in Louisiana ranked by year-round average sea temperature, coldest first. The state-wide average is 23.7°C. The coldest month is January at 15.6°C. Click any beach for its 30-day chart and 10-year history.

Coldest year-round

Bayou BonFouca, Route 433, Louisiana

22.6°C annual mean

State-wide average

23.7°C

across 82 Louisiana coastal locations

Coldest month

January

15.6°C state-wide average

What the water feels like in January

At this temperature, water will feel cold compared to a swimming pool, but with a bit of experience and practice most people will find the water relatively comfortable to swim in.

Louisiana monthly average 15.6°C to 30.7°C
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  • Warmest month August 30.7°C
  • Coldest month January 15.6°C
  • Annual mean 23.7°C
  • Months above 20°C 8 of 12

Month by month around the Louisiana coast

Louisiana sea temperatures swing from 15.6°C in January to 30.7°C in August on average across the coast. That's a spread of 15°C. Pick a single month for a focused ranking:

Louisiana sea temperature map

Today's pin colours show the latest daily reading at every Louisiana beach we track. Drag and zoom; click any pin for that beach's full page.

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 coldest beaches in Louisiana

Sorted by year-round average. Click any beach for its 30-day chart, monthly profile, and 10-year history.

# Location Annual mean
1 Cocodrie, Terrebonne Bay Louisiana 24.2°C
2 Joseph Bayou, Mississippi River, Louisiana Louisiana 24.1°C
3 Pilottown Louisiana 24.1°C
4 Caillou Boca, Louisiana Louisiana 24.0°C
5 Raccoon Point, Caillou Bay, Louisiana Louisiana 24.0°C
6 Texas Gas Platform, Caillou Bay Louisiana 24.0°C
7 Freshwater Canal Locks Louisiana 23.7°C
8 Breton Islands, Louisiana Louisiana 23.7°C
9 Cameron Louisiana 23.6°C
10 Holly Beach Louisiana 23.6°C
11 Lake Charles, Calcasieu River Louisiana 23.6°C
12 Mermentau River entrance, Louisiana Louisiana 23.6°C
13 Bulk Terminal Louisiana 23.5°C
14 Calcasieu Pass, East Jetty Louisiana 23.5°C
15 Calcasieu Pass, Lighthouse Wharf, Louisiana Louisiana 23.5°C
16 Chandeleur Light, Louisiana Louisiana 23.4°C
17 Jack Bay, Louisiana Louisiana 23.3°C
18 Olga Compressor Station, Grand Bay Louisiana 23.3°C
19 Venice, Grand Pass Louisiana 23.3°C
20 South Point, Marsh Island, Atchafalaya Bay, Louisiana Louisiana 23.3°C
21 Eugene Island, Atchafalaya Bay Louisiana 23.2°C
22 Eugene Island, north of Louisiana 23.2°C
23 Lawma, Amerada Pass Louisiana 23.2°C
24 Point Au Fer, Atchafalaya Bay, Louisiana Louisiana 23.2°C
25 Shell Island, Atchafalaya Bay, Louisiana Louisiana 23.2°C
Show 25 more ▸
26 Stouts Pass At Six Mile Lake Louisiana 23.2°C
27 Tesoro Marine Term., Atchafalaya River Louisiana 23.2°C
28 Rabbit Island, 5 miles south of, Atchafalaya Bay, Louisiana Louisiana 23.2°C
29 Lighthouse Point, Atchafalaya Bay, Louisiana Louisiana 23.1°C
30 Lighthouse Point Louisiana 23.1°C
31 Southwest Pass, Vermilion Bay, Louisiana Louisiana 23.1°C
32 Grand Pass Louisiana 23.0°C
33 Cypremort Point Louisiana 23.0°C
34 Weeks Bay, Vermilion Bay, Louisiana (sub) Louisiana 23.0°C
35 Weeks Bay Louisiana 23.0°C
36 Bay Gardene, Louisiana Louisiana 22.9°C
37 Cote Blanche Island, West Cote Blanche Bay, Louisiana Louisiana 22.9°C
38 Point Chevreuil, Atchafalaya Bay, Louisiana Louisiana 22.9°C
39 Comfort Island, Louisiana Louisiana 22.8°C
40 The Rigolets, U.S. Highway 90 Louisiana 22.8°C
41 Shell Beach, Lake Borgne Louisiana 22.8°C
42 West Bank 1, Bayou Gauche Louisiana 22.7°C
43 Lafitte, Barataria Waterway Louisiana 22.7°C
44 Baton Rouge Louisiana 22.6°C
45 Mandeville Louisiana 22.6°C
46 New Orleans Louisiana 22.6°C
47 Bayou BonFouca, Route 433, Louisiana Louisiana 22.6°C
48 Chef Menteur, Chef Menteur Pass, Louisiana Louisiana 22.6°C
49 Martello Castle, Lake Borgne Louisiana 22.6°C
50 University of New Orleans vicinity, Chef Menteur Pass Louisiana 22.6°C

Warmest 10 in Louisiana for contrast

Same data flipped. The warmest year-round spots in the state.

# Location Annual mean
1 South Pass Louisiana 25.2°C
2 Pilot Station, Southwest Pass Louisiana 24.9°C
3 Pilots Station (east), Southwest Pass Louisiana 24.9°C
4 Southwest Pass, Mississippi River, Louisiana Louisiana 24.9°C
5 Grand Isle Louisiana 24.9°C
6 Caminada Pass (bridge) Louisiana 24.4°C
7 Leeville, Bayou Lafourche Louisiana 24.4°C
8 Port Fourchon, Belle Pass Louisiana 24.4°C
9 Texaco Dock, Hackberry Bay Louisiana 24.4°C
10 East Timbalier Island, Timbalier Bay Louisiana 24.4°C

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