World Resorts USA Bay Saint Louis Weather

Bay Saint Louis sea water temperature

Current sea water temperature:
+66.0°F
Minimum sea water temperature in December: 68.7°F
Maximum sea water temperature in December: 52.3°F
Average sea water temperature in December: 60.6°F

Sea water temperature for the last 10 days:

December 4 66.0°F November 29 66.9°F
December 3 66.2°F November 28 67.8°F
December 2 66.2°F November 27 70.5°F
December 1 66.4°F November 26 71.2°F
November 30 66.6°F November 25 72.0°F

When is the warmest sea in Bay Saint Louis?

Based on the data about daily sea water temperature for the last three years the warmest sea in Bay Saint Louis was noticed in August, July and June.

Monthly Sea Temperatures in Bay Saint Louis, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 86.6°F. The highest and lowest sea temperatures during the month were 88.5°F and 84.7°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 87.2°F. The highest and lowest sea temperatures during the month were 88.9°F and 85.8°F.

Sea water temperature in June, °F

Show year:
2025
2024
2023

The average sea water temperature in June of 2025 was 84.9°F. The highest and lowest sea temperatures during the month were 87.3°F and 82.4°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
February 61.2 °F
December 61.8 °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
+54°F
W 10 mph
Feels like: +50°F
Precip.: 77%
Places in USA:
Name
°F
+30°F
+77°F
+77°F
+45°F
+55°F
+70°F
+77°F
+70°F
+25°F
+57°F
+48°F
+63°F
+63°F
+46°F
+9°F
24 Hours Forecast
Bay Saint Louis
Local time: 21:54
December 05, friday
0000
52°F
S
12 mph
0300
50°F
S
11 mph
0600
50°F
S
8 mph
0900
48°F
S
8 mph
1200
52°F
S
9 mph
1500
55°F
S
5 mph
1800
55°F
SW
7 mph
2100
52°F
S
5 mph
Units of measurement: °C / °F