World Resorts USA Bay Saint Louis Weather

Bay Saint Louis sea water temperature

Current sea water temperature:
+67.6°F
Minimum sea water temperature in March: 77.0°F
Maximum sea water temperature in March: 57.7°F
Average sea water temperature in March: 66.2°F

Sea water temperature for the last 10 days:

March 18 67.6°F March 13 72.7°F
March 17 69.1°F March 12 73.6°F
March 16 69.6°F March 11 73.0°F
March 15 69.8°F March 10 71.8°F
March 14 70.2°F March 9 72.7°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 57.3 °F
February 61.0 °F
December 61.0 °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
+64°F
NW 5 mph
Feels like: +64°F
Precip.: 0%
Places in USA:
Name
°F
+36°F
+75°F
+75°F
+91°F
+84°F
+66°F
+72°F
+72°F
+32°F
+66°F
+63°F
+61°F
+59°F
+75°F
+39°F
24 Hours Forecast
Bay Saint Louis
Local time: 19:18
March 18, wednesday
2100
61°F
N
5 mph
March 19, thursday
0000
61°F
NE
2 mph
0300
57°F
E
1 mph
0600
54°F
SE
3 mph
0900
55°F
S
1 mph
1200
66°F
N
3 mph
1500
73°F
N
6 mph
1800
72°F
N
7 mph
Units of measurement: °C / °F