World Resorts USA Bay Saint Louis Weather

Bay Saint Louis sea water temperature

Current sea water temperature:
+86.4°F
Minimum sea water temperature in July: 90.1°F
Maximum sea water temperature in July: 83.1°F
Average sea water temperature in July: 86.5°F

Sea water temperature for the last 10 days:

July 23 86.4°F July 18 86.4°F
July 22 87.1°F July 17 85.8°F
July 21 86.7°F July 16 85.1°F
July 20 86.9°F July 15 84.4°F
July 19 86.0°F July 14 86.0°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:
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:
August 88.3 °F
July 88.2 °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 5 days
July 5 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
+88°F
NW 13 mph
Feels like: +100°F
Precip.: 7%
Places in USA:
Name
°F
+82°F
+79°F
+118°F
+93°F
+91°F
+95°F
+75°F
+90°F
+82°F
+90°F
+72°F
+84°F
+91°F
+84°F
+77°F
24 Hours Forecast
Bay Saint Louis
Local time: 18:18
July 23, thursday
2100
86°F
NW
11 mph
July 24, friday
0000
84°F
N
7 mph
0300
79°F
NE
6 mph
0600
77°F
NE
3 mph
0900
82°F
NE
0 mph
1200
88°F
NW
6 mph
1500
88°F
N
8 mph
1800
86°F
N
9 mph
Units of measurement: °C / °F