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Coldest beach in Louisiana in May

82 coastal locations in Louisiana ranked by their typical May sea temperature. State-wide average in May: 26.1°C.

Coldest in May

Breton Islands, Louisiana

25.8°C

State May average

26.1°C

across 82 coastal locations in Louisiana

Vs annual mean

+2.4°C

above the year-round state average

What the Louisiana water feels like in May

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.

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

Where May fits in the year

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

Louisiana sea temperature map (live)

Today's reading at every Louisiana beach we track. The list below uses the typical May 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 coldest Louisiana beaches in May

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

# Location May mean
1 Barataria Pass, Louisiana Louisiana 26.2°C
2 Bayou Rigaud, Grand Isle, Barataria Bay, Louisiana Louisiana 26.2°C
3 Grand Isle River Delta (2) Louisiana 26.2°C
4 Grand Isle River Delta Louisiana 26.2°C
5 Independence Island, Barataria Bay, Louisiana Louisiana 26.2°C
6 Manilla, Barataria Bay, Louisiana Louisiana 26.2°C
7 Mendicant Island, Barataria Bay Louisiana 26.2°C
8 Comfort Island, Louisiana Louisiana 26.1°C
9 The Rigolets, U.S. Highway 90 Louisiana 26.1°C
10 Shell Beach, Lake Borgne Louisiana 26.1°C
11 Ship Shoal Light, Louisiana Louisiana 26.1°C
12 Freshwater Canal Locks Louisiana 26.1°C
13 Grand Pass Louisiana 26.1°C
14 Bastian Island, Louisiana Louisiana 26.0°C
15 Empire Jetty, Louisiana Louisiana 26.0°C
16 Chandeleur Light, Louisiana Louisiana 26.0°C
17 Lake Charles, Calcasieu River Louisiana 26.0°C
18 Mermentau River entrance, Louisiana Louisiana 26.0°C
19 Pilot Station, Southwest Pass Louisiana 25.9°C
20 Pilots Station (east), Southwest Pass Louisiana 25.9°C
21 South Pass Louisiana 25.9°C
22 Southwest Pass, Mississippi River, Louisiana Louisiana 25.9°C
23 Bulk Terminal Louisiana 25.9°C
24 Calcasieu Pass, East Jetty Louisiana 25.9°C
25 Calcasieu Pass, Lighthouse Wharf, Louisiana Louisiana 25.9°C
Show 25 more ▸
26 Cameron Louisiana 25.9°C
27 Grand Isle Louisiana 25.9°C
28 Holly Beach Louisiana 25.9°C
29 Bayou BonFouca, Route 433, Louisiana Louisiana 25.9°C
30 Chef Menteur, Chef Menteur Pass, Louisiana Louisiana 25.9°C
31 Lafitte, Barataria Waterway Louisiana 25.9°C
32 Martello Castle, Lake Borgne Louisiana 25.9°C
33 University of New Orleans vicinity, Chef Menteur Pass Louisiana 25.9°C
34 Baton Rouge Louisiana 25.9°C
35 West Bank 1, Bayou Gauche Louisiana 25.9°C
36 Mandeville Louisiana 25.9°C
37 New Orleans Louisiana 25.9°C
38 Bay Gardene, Louisiana Louisiana 25.9°C
39 Joseph Bayou, Mississippi River, Louisiana Louisiana 25.9°C
40 Pilottown Louisiana 25.9°C
41 Devon Energy Facility Louisiana 25.8°C
42 Lonesome Bayou (Thomasin), Louisiana Louisiana 25.8°C
43 North Pass, Mississippi River, Louisiana Louisiana 25.8°C
44 Port Eads, South Pass, Mississippi River, Louisiana Louisiana 25.8°C
45 Port Eads Louisiana 25.8°C
46 Southeast Pass, Mississippi River, Louisiana Louisiana 25.8°C
47 Breton Islands, Louisiana Louisiana 25.8°C
48 Jack Bay, Louisiana Louisiana 25.8°C
49 Olga Compressor Station, Grand Bay Louisiana 25.8°C
50 Venice, Grand Pass Louisiana 25.8°C

Warmest 10 in Louisiana in May

Same data flipped. The warmest spots in the state for this month.

# Location May mean
1 Cocodrie, Terrebonne Bay Louisiana 26.4°C
2 East Isle Dernière, Lake Pelto Louisiana 26.4°C
3 Timbalier Island, Timbalier Bay, Louisiana Louisiana 26.4°C
4 Wine Island, Terrebonne Bay, Louisiana Louisiana 26.4°C
5 Caillou Boca, Louisiana Louisiana 26.4°C
6 Raccoon Point, Caillou Bay, Louisiana Louisiana 26.4°C
7 Texas Gas Platform, Caillou Bay Louisiana 26.4°C
8 East Timbalier Island, Timbalier Bay Louisiana 26.4°C
9 Golden Meadow, Plaisance Canal Louisiana 26.4°C
10 Pelican Islands, Timbalier Bay, Louisiana Louisiana 26.4°C

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