World Resorts USA Bay Saint Louis Weather

Bay Saint Louis 7 Days Forecast

23.07
thu
Day
91°F
N 12 mph
Precip.
5%
Night
84°F
N 8 mph
Precip.
11%
24.07
fri
Day
88°F
NW 5 mph
Precip.
3%
Night
81°F
NE 7 mph
Precip.
11%
25.07
sat
Day
91°F
NE 2 mph
Precip.
2%
Night
82°F
E 7 mph
Precip.
21%
26.07
sun
Day
91°F
E 6 mph
Precip.
5%
Night
84°F
E 9 mph
Precip.
8%
27.07
mon
Day
91°F
E 7 mph
Precip.
3%
Night
82°F
E 11 mph
Precip.
7%
28.07
tue
Day
91°F
E 8 mph
Precip.
3%
Night
82°F
E 9 mph
Precip.
8%
29.07
wed
Day
91°F
E 8 mph
Precip.
3%
Night
82°F
NE 9 mph
Precip.
9%

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 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.

Air temperature in Bay Saint Louis, °F

Precipitation total in Bay Saint Louis, in.

* Charts above show average data for the last 3 years.

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
+86°F
NW 11 mph
Feels like: +95°F
Precip.: 8%
Places in USA:
Name
°F
+70°F
+79°F
+115°F
+88°F
+84°F
+91°F
+75°F
+82°F
+72°F
+79°F
+70°F
+81°F
+82°F
+79°F
+73°F
24 Hours Forecast
Bay Saint Louis
Local time: 20:25
July 23, thursday
2100
86°F
NW
11 mph
July 24, friday
0000
84°F
N
8 mph
0300
82°F
NE
6 mph
0600
82°F
NE
4 mph
0900
82°F
NW
1 mph
1200
88°F
NW
5 mph
1500
88°F
N
8 mph
1800
86°F
N
7 mph
Units of measurement: °C / °F