World Resorts USA Bay Saint Louis Weather

Bay Saint Louis weather in August

Weather in Bay Saint Louis: August

Average day temperature: 88.5°F
Average night temperature: 79.3°F
Sea water temperature: 86.9°F
Number of sunny days: 12 days
Day length: 12.8 - 13.6 hours
Number of rainy days: 4 days
Precipitation totals: 2.0 in.

Air temperature in August, °F

Show year:
2026
2025
2024

The highest day temperature during August of 2026 was 95°F. At the same time the lowest night temperature was 77°F. Daily and nightly averages during August were 89.7°F and 81.3°F.

Sea water temperature in Bay Saint Louis 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.

Sunny, partly cloudy and cloudy days

Mostly all days in August are partly cloudy but sunny or cloudy days are also possible.

Precipitation total in August, in.

Precipitation total value in Bay Saint Louis in August is 2.0 in. Other months of the year show relatively similar values.

Wind speed in August, mph

The average wind speed value in August is 7.0 mph It makes August one of the least windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in August is: 8.3.

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
S 6 mph
Feels like: +91°F
Precip.: 12%
Places in USA:
Name
°F
+70°F
+91°F
+77°F
+82°F
+70°F
+88°F
+63°F
+91°F
+73°F
+73°F
+63°F
+70°F
+86°F
+81°F
+75°F
24 Hours Forecast
Bay Saint Louis
Local time: 09:44
September 02, wednesday
1200
84°F
NW
7 mph
1500
84°F
N
7 mph
1800
84°F
N
6 mph
2100
84°F
N
6 mph
September 03, thursday
0000
82°F
N
2 mph
0300
81°F
SE
5 mph
0600
81°F
S
5 mph
0900
81°F
SW
4 mph
Units of measurement: °C / °F