Measurements:
°C
°F
Bay Saint Louis
82°F
NE 3 mph
Feels like: 88°F
Precip: 10%
World Resorts USA Bay Saint Louis Weather

Bay Saint Louis Sea Water Temperature

Current Sea Water Temperature:
+88.0°F
Maximum Sea Water Temperature in June: 93.0°F
Minimum Sea Water Temperature in June: 82.2°F
Average water temperature in June: 87.6°F

Sea Water Temperature for the Last 10 Days:

June 24 88.0°F June 19 87.0°F
June 23 88.2°F June 18 88.2°F
June 22 87.6°F June 17 89.6°F
June 21 87.2°F June 16 90.0°F
June 20 87.2°F June 15 90.4°F

When is the Warmest Sea for Bay Saint Louis?

According to our data for the last three years for Bay Saint Louis the highest average sea water temperature was in August, July and June.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Bay Saint Louis was 90.7°F. The maximum and minimum values were 88.6°F and 92.8°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Bay Saint Louis was 91.3°F. The maximum and minimum values were 89.8°F and 93.2°F respectively.

Sea Water Temperature in June

Select Year: 2026 2025 2024

The average sea surface temperature in June 2026 for Bay Saint Louis was 86.9°F. The maximum and minimum values were 83.8°F and 90.4°F respectively.

Best Time to Visit Bay Saint Louis
The most sunny months:
October 20 days
September 16 days
May 14 days
The most warm months:
August 92.5 °F
July 92.4 °F
June 90.8 °F
Warmest sea temperature:
August 91.0 °F
July 90.5 °F
June 87.6 °F
The most cold months:
January 58.1 °F
February 62.2 °F
December 62.3 °F
The most rainy months:
August 5 days
July 5 days
June 4 days
The most windy months:
April 9 mph
March 9 mph
January 9 mph

Bay Saint Louis on the Weather Map

USA Resorts:
NAME
Chicago +66
Hawaii +80
Honolulu +80
Houston +82
Las Vegas +96
Los Angeles +66
Maui +74
Miami +80
Miami Beach +88
Myrtle Beach +78
New York +70
San Diego +68
San Francisco +58
Sarasota +84
Tampa +84
24 Hours Weather Forecast
Bay Saint Louis
Local time: 23:24
25 jun, thursday
0000 82°F
NE
3 mph
0300 82°F
NE
4 mph
0600 80°F
E
4 mph
0900 84°F
SE
3 mph
1200 90°F
E
3 mph
1500 90°F
N
6 mph
1800 90°F
N
6 mph
2100 86°F
N
11 mph