18.03
wed
wed
Day
57°F
W 6 mph
Precip.
0%
0%
Night
61°F
NE 2 mph
Precip.
0%
0%
19.03
thu
thu
Day
66°F
N 3 mph
Precip.
0%
0%
Night
63°F
NE 9 mph
Precip.
0%
0%
20.03
fri
fri
Day
72°F
N 7 mph
Precip.
0%
0%
Night
64°F
NE 9 mph
Precip.
0%
0%
21.03
sat
sat
Day
68°F
NE 9 mph
Precip.
0%
0%
Night
64°F
E 9 mph
Precip.
0%
0%
22.03
sun
sun
Day
73°F
NE 9 mph
Precip.
0%
0%
Night
66°F
NE 9 mph
Precip.
0%
0%
23.03
mon
mon
Day
75°F
E 11 mph
Precip.
0%
0%
Night
64°F
S 11 mph
Precip.
0%
0%
24.03
tue
tue
Day
68°F
SW 5 mph
Precip.
0%
0%
Night
63°F
NW 8 mph
Precip.
0%
0%
25.03
wed
wed
Day
68°F
W 14 mph
Precip.
73%
73%
Night
64°F
NW 9 mph
Precip.
0%
0%
26.03
thu
thu
Day
72°F
NW 16 mph
Precip.
67%
67%
Night
68°F
NW 11 mph
Precip.
0%
0%
27.03
fri
fri
Day
73°F
NE 5 mph
Precip.
100%
100%
Night
43°F
NW 22 mph
Precip.
0%
0%
28.03
sat
sat
Day
50°F
S 17 mph
Precip.
0%
0%
Night
45°F
SW 11 mph
Precip.
0%
0%
29.03
sun
sun
Day
57°F
W 10 mph
Precip.
0%
0%
Night
54°F
NW 7 mph
Precip.
0%
0%
30.03
mon
mon
Day
66°F
NW 14 mph
Precip.
0%
0%
Night
66°F
NW 19 mph
Precip.
0%
0%
31.03
tue
tue
Day
70°F
NW 19 mph
Precip.
100%
100%
Night
68°F
NW 21 mph
Precip.
22%
22%
sea water
temperature
temperature
| Bay Saint Louis |
monthly
weather
weather
| Bay Saint Louis |
current
weather
weather
| Bay Saint Louis |
7 days
forecast
forecast
| Bay Saint Louis |
Sea water temperature in March, °F
Show year:
2026
2025
2024
The average sea water temperature in March of 2026 was 69.0°F. The highest and lowest sea temperatures during the month were 73.6°F and 63.7°F.
Sea water temperature in April, °F
Show year:
2025
2024
2023
The average sea water temperature in April of 2025 was 73.3°F. The highest and lowest sea temperatures during the month were 81.1°F and 69.6°F.
Air temperature in Bay Saint Louis, °F
Precipitation total in Bay Saint Louis, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Bay Saint Louis
Bay Saint Louis on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Bay Saint Louis
Local time: 16:36
March 18, wednesday
1800
64°F
NW
5 mph
5 mph
2100
61°F
N
5 mph
5 mph
March 19, thursday
0000
61°F
NE
2 mph
2 mph
0300
57°F
E
1 mph
1 mph
0600
54°F
SE
3 mph
3 mph
0900
55°F
S
1 mph
1 mph
1200
66°F
N
3 mph
3 mph
1500
73°F
N
6 mph
6 mph
