28.12
sun
sun
Day
63°F
N 9 mph
Precip.
0%
0%
Night
66°F
NE 7 mph
Precip.
0%
0%
29.12
mon
mon
Day
50°F
S 15 mph
Precip.
0%
0%
Night
45°F
S 12 mph
Precip.
0%
0%
30.12
tue
tue
Day
46°F
S 11 mph
Precip.
0%
0%
Night
37°F
S 9 mph
Precip.
0%
0%
31.12
wed
wed
Day
46°F
S 2 mph
Precip.
0%
0%
Night
45°F
E 8 mph
Precip.
100%
100%
01.01
thu
thu
Day
54°F
E 5 mph
Precip.
0%
0%
Night
50°F
SE 6 mph
Precip.
0%
0%
02.01
fri
fri
Day
48°F
SW 9 mph
Precip.
0%
0%
Night
45°F
SW 8 mph
Precip.
0%
0%
03.01
sat
sat
Day
45°F
W 8 mph
Precip.
57%
57%
Night
52°F
W 9 mph
Precip.
100%
100%
04.01
sun
sun
Day
61°F
NW 9 mph
Precip.
0%
0%
Night
63°F
N 7 mph
Precip.
0%
0%
05.01
mon
mon
Day
66°F
N 9 mph
Precip.
48%
48%
Night
63°F
NE 6 mph
Precip.
100%
100%
06.01
tue
tue
Day
61°F
SW 14 mph
Precip.
27%
27%
Night
46°F
SW 13 mph
Precip.
0%
0%
07.01
wed
wed
Day
48°F
W 11 mph
Precip.
0%
0%
Night
50°F
W 10 mph
Precip.
0%
0%
08.01
thu
thu
Day
54°F
W 14 mph
Precip.
0%
0%
Night
59°F
W 15 mph
Precip.
22%
22%
09.01
fri
fri
Day
66°F
NW 14 mph
Precip.
0%
0%
Night
63°F
NW 16 mph
Precip.
0%
0%
10.01
sat
sat
Day
66°F
NW 13 mph
Precip.
100%
100%
Night
63°F
NW 13 mph
Precip.
85%
85%
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 December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 61.7°F. The highest and lowest sea temperatures during the month were 66.4°F and 56.3°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 55.3°F. The highest and lowest sea temperatures during the month were 61.5°F and 50.7°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: 12:54
December 28, sunday
1500
66°F
N
9 mph
9 mph
1800
64°F
N
9 mph
9 mph
2100
64°F
N
8 mph
8 mph
December 29, monday
0000
66°F
NE
7 mph
7 mph
0300
64°F
NE
7 mph
7 mph
0600
64°F
SE
11 mph
11 mph
0900
55°F
S
19 mph
19 mph
1200
50°F
S
15 mph
15 mph
