World Resorts USA Bay Saint Louis Weather

Bay Saint Louis sea water temperature

Current sea water temperature:
+85.8°F
Minimum sea water temperature in September: 87.4°F
Maximum sea water temperature in September: 77.2°F
Average sea water temperature in September: 83.8°F

Sea water temperature for the last 10 days:

September 22 85.8°F September 17 87.1°F
September 21 85.6°F September 16 86.5°F
September 20 85.5°F September 15 86.5°F
September 19 86.0°F September 14 86.0°F
September 18 87.1°F September 13 85.6°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:
2026
2025
2024

The average sea water temperature in August of 2026 was 87.2°F. The highest and lowest sea temperatures during the month were 88.7°F and 84.0°F.

Sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 86.8°F. The highest and lowest sea temperatures during the month were 88.0°F and 84.4°F.

Sea water temperature in June, °F

Show year:
2026
2025
2024

The average sea water temperature in June of 2026 was 83.7°F. The highest and lowest sea temperatures during the month were 86.7°F and 80.4°F.

Best time for vacation in Bay Saint Louis

Sunniest months:
October 20 days
September 16 days
May 14 days
Warmest months:
July 88.5 °F
August 88.5 °F
June 86.7 °F
Warmest sea temp:
August 86.9 °F
July 86.5 °F
June 83.9 °F
Coldest months:
January 57.3 °F
February 61.0 °F
December 61.0 °F
Rainiest months:
August 4 days
July 4 days
May 4 days
Windiest months:
April 9.2 mph
March 9.1 mph
January 8.8 mph

Bay Saint Louis on a weather map

Bay Saint Louis
+82°F
SE 2 mph
Feels like: +88°F
Precip.: 7%
Places in USA:
Name
°F
+57°F
+59°F
+79°F
+84°F
+72°F
+82°F
+66°F
+61°F
+70°F
+59°F
+70°F
+79°F
+84°F
+59°F
24 Hours Forecast
Bay Saint Louis
Local time: 00:26
September 23, wednesday
0300
81°F
S
6 mph
0600
79°F
S
6 mph
0900
81°F
SW
9 mph
1200
84°F
W
7 mph
1500
84°F
N
11 mph
1800
84°F
N
7 mph
2100
84°F
NE
3 mph
September 24, thursday
0000
82°F
NE
2 mph
Units of measurement: °C / °F