Louisiana: water temperature

At sea, 23.6 °C on average across 34 stations, from 21.2 °C (Mississippi Sound At Usgs Merrill Shell Bank Light) to 27.5 °C (Bulk Terminal, LA). In fresh water, 21.9 °C on average across 19 stations, from 14.7 °C (Ouiska Chitto Creek Near Oberlin, LA) to 23.8 °C (Calcasieu River At I-10 At Lake Charles, LA (sonde : Elevation: 1.000)).

See on the map

Sea and ocean

Lakes and rivers

Where to swim, month by month

The normal sea temperature each month along the coast: pick a month to see where the water is warmest and whether you can swim.

• January 17.2 °C · up to 22.1 °C
• February 17.7 °C · up to 21.9 °C
• March 19.8 °C · up to 22.2 °C
• April 22.4 °C · up to 23.1 °C
• May 25.5 °C · up to 25.9 °C
• June 28.9 °C · up to 29.2 °C
• July 29.9 °C · up to 30.1 °C
• August 30.3 °C · up to 30.6 °C
• September 28.9 °C · up to 29.1 °C
• October 26.6 °C · up to 27.5 °C
• November 21.9 °C · up to 24.9 °C
• December 19.4 °C · up to 23.3 °C

Warmest water today

Where these numbers come from

Every value is a real reading from an instrument, at its position: a buoy, a wharf, a river or lake station. It keeps the time it was measured. A reading too far from those of nearby stations is marked with a “?”. Between stations, the map gives a satellite or model estimate, always labelled as such.

Sources: Bouées de houle CDIP, Golfe du Mexique (GCOOS), NOAA CO-OPS, NOAA NDBC, USGS, eaux des États-Unis. Sources and credits

Nearby

• Mississippi 10 stations · sea 20.9 °C · fresh water 16.2 °C
• Arkansas 28 stations · fresh water 16.4 °C
• Alabama 31 stations · sea 22.4 °C · fresh water 16.9 °C
• Oklahoma 17 stations · fresh water 19.9 °C
• Tennessee 17 stations · fresh water 16.1 °C
• Texas 119 stations · sea 24.9 °C · fresh water 23.0 °C