World Resorts USA Bay Saint Louis Weather

Bay Saint Louis Sea Temperature in December

Average sea water temperature in December:
+60.7°F
Minimum sea water temperature in December: 68.7°F
Maximum sea water temperature in December: 52.3°F

Daily sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 62.1°F. The highest and lowest sea temperatures during the month were 66.4°F and 56.3°F.

Monthly sea water temperature in Bay Saint Louis, °F

Which USA resorts have warmest sea in December?

Place name December 2025 December 2024
Kailua Kona 79.2°F 78.3°F
West Palm Beach 79.0°F 78.4°F
Fort Lauderdale 78.7°F 77.6°F
Honolulu 78.6°F 78.3°F
Hawaii 78.5°F 78.3°F
Kauai 78.2°F 76.0°F
Maui 78.0°F 77.8°F
Miami Beach 77.4°F 75.9°F
Oahu 77.1°F 77.2°F
Islamorada 76.4°F 73.4°F
Key Largo 76.3°F 73.1°F
Key West 75.9°F 72.6°F
Miami 75.5°F 73.0°F
Everglades 73.7°F 69.7°F
Marco Island 71.8°F 68.0°F
South Padre Island 71.8°F 71.9°F
Naples 71.5°F 67.7°F
Sanibel Island 70.9°F 67.1°F
Cocoa Beach 69.7°F 66.6°F
Siesta Key 69.3°F 65.6°F

Best time for vacation in Bay Saint Louis

Sunniest months:
October 20 days
September 16 days
November 14 days
Warmest months:
August 88.3 °F
July 88.2 °F
June 86.7 °F
Warmest sea temp:
August 86.9 °F
July 86.4 °F
June 83.9 °F
Coldest months:
January 57.5 °F
December 61.0 °F
February 61.2 °F
Rainiest months:
August 5 days
July 5 days
June 4 days
Windiest months:
April 9.1 mph
March 9.1 mph
January 8.8 mph

Bay Saint Louis on a weather map

Bay Saint Louis
+52°F
S 13 mph
Feels like: +45°F
Precip.: 0%
Places in USA:
Name
°F
+32°F
+75°F
+75°F
+48°F
+61°F
+72°F
+75°F
+68°F
+32°F
+57°F
+50°F
+61°F
+57°F
+52°F
+30°F
24 Hours Forecast
Bay Saint Louis
Local time: 22:08
January 12, monday
0000
46°F
SW
12 mph
0300
43°F
SW
10 mph
0600
41°F
SW
9 mph
0900
41°F
SW
10 mph
1200
46°F
SW
7 mph
1500
52°F
SW
6 mph
1800
52°F
S
6 mph
2100
48°F
S
7 mph
Units of measurement: °C / °F