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Southwest Pass, Mississippi River, Louisiana Sea Temperature in March

Louisiana, United States

February Southwest Pass, Mississippi River, Louisiana year-round → April

Average sea temperature for Southwest Pass, Mississippi River, Louisiana, United States across March, based on 10 years of daily readings.

Average

20.87° C

High

24° C

Low

17.47° C

Water at this temperature is very pleasant to swim in. If you tend to wear a wetsuit when swimming, you might consider removing it now to avoid the body overheating.

March is the 10th warmest of 12 months at Southwest Pass, Mississippi River, Louisiana. On average the water sits 4.0° than the year-round mean of 24.89° C.

Compared to February, March is 1.5° warmer than (19.34° C in February). By April the water is usually 22.68° C.

Southwest Pass, Mississippi River, Louisiana Day-by-Day Water Temperature in March

10-year low, average and high

16.0° C
18.3° C
20.5° C
22.8° C
25.0° C
1
5
10
15
20
25
31
Day-by-day low and high band with the 10-year daily average through March. Range Average

Each vertical bar above is one day of March. The shaded band covers the range the water has reached on that day across the last 10 years — the lowest reading at the bottom, the highest at the top. The line running through the bars is the daily average over those 10 years, so you can see the typical shape of the month at Southwest Pass, Mississippi River, Louisiana.

A narrow band means the temperature on that day has stayed close to the average year on year. A taller band means it has swung more, often because of changeable weather around that time of year. Hovering a day pulls up its low, average, and high.

March Water Temperature Table for Southwest Pass, Mississippi River, Louisiana

10-year daily averages

Day Average Low High
March 1 20.32° C 17.47° C 23.07° C
March 2 20.55° C 18.31° C 23.01° C
March 3 20.33° C 18.48° C 21.91° C
March 4 20.2° C 18.54° C 21.49° C
March 5 20.08° C 18.49° C 21.57° C
March 6 20.12° C 18.55° C 21.86° C
March 7 20.4° C 18.58° C 22.07° C
March 8 20.62° C 18.54° C 22.11° C
March 9 20.77° C 18.76° C 22.46° C
March 10 20.58° C 18.9° C 22.79° C
March 11 20.65° C 18.95° C 22.92° C
March 12 20.67° C 18.91° C 22.88° C
March 13 20.72° C 19.28° C 22.85° C
March 14 20.79° C 19.47° C 21.96° C
March 15 20.9° C 19.02° C 21.99° C
March 16 20.82° C 18.2° C 21.85° C
March 17 20.82° C 18.01° C 21.83° C
March 18 20.8° C 18.88° C 22.34° C
March 19 20.65° C 18.9° C 22.34° C
March 20 20.55° C 19.06° C 22.51° C
March 21 20.44° C 19.62° C 22.66° C
March 22 20.47° C 19.5° C 22.44° C
March 23 20.68° C 19.69° C 22.59° C
March 24 20.92° C 19.86° C 23.5° C
March 25 21.21° C 19.59° C 23.79° C
March 26 21.54° C 19.76° C 24° C
March 27 21.87° C 20.1° C 23.77° C
March 28 22.06° C 20.41° C 23.74° C
March 29 22.07° C 20.26° C 23.91° C
March 30 22.25° C 20.67° C 23.89° C
March 31 22.08° C 21.35° C 23.3° C

Where March Sits in the Year

March highlighted

12.0° C
17.8° C
23.5° C
29.3° C
35.0° C
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
19.59° C
19.34° C
20.87° C
22.68° C
25.86° C
28.9° C
30.27° C
30.61° C
29.22° C
26.63° C
23.57° C
21.11° C
10-year monthly history for Southwest Pass, Mississippi River, Louisiana. Bars span historical low to high; the line marks the monthly average. Range Average
January → February → March → April → May → June → July → August → September → October → November → December →

Nearby Locations in March

Compare other United States water for the same month

Southwest Pass, Mississippi River, Louisiana Location

28.9317, -89.4283

28.93170, -89.42830 View on OpenStreetMap →

Southwest Pass, Mississippi River, Louisiana sits at 28.9317°N, 89.4283°W, on the coast of Louisiana, United States. The marker on the map shows the spot the readings on this page come from. It usually sits a short distance from the town centre, out on the open water itself, so the numbers stay tied to the coast rather than a generic point inland.

Coastlines bend, headlands focus the water, and the temperature can run noticeably differently between two beaches that look close together on a map. Comparing nearby locations is a quick way to see how local geography is shaping the readings.

Nearest locations to Southwest Pass, Mississippi River, Louisiana