18.12
thu
thu
Day
61°F
NW 8 mph
Precip.
0%
0%
Night
64°F
E 9 mph
Precip.
0%
0%
19.12
fri
fri
Day
63°F
S 11 mph
Precip.
0%
0%
Night
54°F
W 7 mph
Precip.
0%
0%
20.12
sat
sat
Day
59°F
NW 9 mph
Precip.
0%
0%
Night
59°F
N 7 mph
Precip.
0%
0%
21.12
sun
sun
Day
64°F
NW 5 mph
Precip.
0%
0%
Night
61°F
NW 6 mph
Precip.
0%
0%
22.12
mon
mon
Day
66°F
NW 8 mph
Precip.
0%
0%
Night
59°F
NW 6 mph
Precip.
0%
0%
23.12
tue
tue
Day
64°F
W 7 mph
Precip.
0%
0%
Night
59°F
NW 6 mph
Precip.
0%
0%
24.12
wed
wed
Day
66°F
NW 6 mph
Precip.
0%
0%
Night
61°F
E 5 mph
Precip.
0%
0%
sea water
temperature
temperature
| Bay Saint Louis |
monthly
weather
weather
| Bay Saint Louis |
current
weather
weather
| Bay Saint Louis |
14 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 62.6°F. The highest and lowest sea temperatures during the month were 66.4°F and 56.7°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: 10:40
December 18, thursday
1200
61°F
NW
8 mph
8 mph
1500
61°F
N
8 mph
8 mph
1800
63°F
NE
5 mph
5 mph
2100
63°F
NE
9 mph
9 mph
December 19, friday
0000
64°F
E
9 mph
9 mph
0300
64°F
SE
11 mph
11 mph
0600
61°F
SE
11 mph
11 mph
0900
55°F
S
11 mph
11 mph
