Water Temperature of Bay of St. Louis in Bay St. Louis, MS

Current Water Temperature

88.2°F

Measurement Time: Wednesday, July 29, 2026, 1:54 AM CDT

Today's Tides

 High: July 29, 12:11 PM, 2.2 ft
Low: July 29, 10:17 PM, 0.1 ft

Temperature Locations

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Local Points of Interest

Pass Christian, MS; Mississippi Sound; Gulf of Mexico

Bay of St. Louis

Station Name: Bay Waveland Yacht Club
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 0 feet

Sensor Depth: -1 feet

Nearest Address:
1 Yacht Club Drive
Bay St. Louis, MS 39520
Hancock County

GPS Coordinates: 30.325000, -89.325000

Nearby Water Temperatures

Mississippi Sound, Pass Christian, MS (7.7 mi)
Mississippi Sound, Waveland, MS (10.9 mi)
Mississippi Sound, Biloxi, MS (21 mi)
Biloxy Bay, Biloxi, MS (28.2 mi)
Lake Borgne, Shell Beach, LA (37.8 mi)
Mississippi Sound, Pascagoula, MS (44.2 mi)
Pascagoula River, Pascagoula, MS (45.5 mi)
Cypress Creek, Brooklyn, MS (51.7 mi)
Mississippi River, New Orleans, LA (55.5 mi)
Leaf River, New Augusta, MS (64 mi)
Gulf of Mexico, Dauphin Island, AL (74.8 mi)
Bayou Gauche, Bayou Gauche, LA (75.3 mi)
Mobile Bay, Mobile, AL (78.7 mi)
Mississippi River, Pilottown, LA (79.3 mi)
Mobile River, Mobile, AL (80.9 mi)

Weather for Bay St. Louis, Mississippi

Current Weather

83.5°F
Clear
Clear
93.9°F
93.9°F
84%
WNW 7.8 mph
15.1 mph
83.5°F
78°F
0 in
1%
6 mi
1010 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 94°F
L: 81°F
Sunny
Thu
H: 92°F
L: 78°F
Partly Cloudy
Fri
H: 91°F
L: 78°F
Sunny
Sat
H: 85°F
L: 80°F
Partly Cloudy
Sun
H: 87°F
L: 79°F

Air Quality

AQI: 1 - Good
PM2.5: 13.6 μg/m3
PM10: 15.2 μg/m3
Carbon Monoxide: 138 μg/m3
Nitrogen Dioxide: 3.7 μg/m3
Sulphur Dioxide: 2.9 μg/m3
Ozone: 93 μg/m3

Astronomical

Sunrise: 6:14 AM
Sun Transit: 1:03 PM
Sunset: 7:53 PM
Daylight: 13 hrs 39 mins
Moonrise: 8:13 PM
Moon Transit: 12:49 AM
Moonset: 6:06 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:19 AM - 2:49 AM
12:48 AM - 3:18 PM

Minor Periods

7:43 PM - 9:13 PM
5:36 AM - 7:06 AM

Action Rating: 4 out of 5

Heat Advisory issued July 28 at 1:45PM CDT until July 29 at 8:00PM CDT by NWS New Orleans LA

Effective: Tue July 28, 2026, 1:45 PM
Expires: Wed July 29, 2026, 3:45 AM

* WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 115. For the Heat Advisory, heat index values up to 110 expected. * WHERE...Central Jefferson and Central Plaquemines Parishes. * WHEN...For the Extreme Heat Warning, until 8 PM CDT this evening. For the Heat Advisory, from 11 AM to 8 PM CDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.


Extreme Heat Warning issued July 28 at 1:45PM CDT until July 28 at 8:00PM CDT by NWS New Orleans LA

Effective: Tue July 28, 2026, 1:45 PM
Expires: Wed July 29, 2026, 3:45 AM

* WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 115. For the Heat Advisory, heat index values up to 110 expected. * WHERE...Central Jefferson and Central Plaquemines Parishes. * WHEN...For the Extreme Heat Warning, until 8 PM CDT this evening. For the Heat Advisory, from 11 AM to 8 PM CDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Wednesday, July 29, 2026

Weather Forecast

Sunny
93.7°F
81.3°F
86.1°F
72%
0.06 in
57%
0%
11.2 mph
10.8


Air Quality

AQI: 1 - Good
PM2.5: 13.03 μg/m3
PM10: 15.9 μg/m3
Carbon Monoxide: 124.29 μg/m3
Nitrogen Dioxide: 2.63 μg/m3
Sulphur Dioxide: 2.32 μg/m3
Ozone: 96.46 μg/m3

Astronomical

Sunrise: 6:14 AM
Sun Transit: 1:03 PM
Sunset: 7:53 PM
Daylight: 13 hrs 39 mins
Moonrise: 8:13 PM
Moon Transit: 12:49 AM
Moonset: 6:06 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:19 AM - 2:49 AM
12:48 AM - 3:18 PM

Minor Periods

7:43 PM - 9:13 PM
5:36 AM - 7:06 AM

Action Rating: 4 out of 5

Thursday, July 30, 2026

Weather Forecast

Sunny
91.6°F
78.3°F
84°F
74%
0.07 in
57%
0%
9.4 mph
10.9


Air Quality

AQI: 1 - Good
PM2.5: 12.95 μg/m3
PM10: 15.89 μg/m3
Carbon Monoxide: 119.96 μg/m3
Nitrogen Dioxide: 3.5 μg/m3
Sulphur Dioxide: 2.12 μg/m3
Ozone: 86 μg/m3

Astronomical

Sunrise: 6:15 AM
Sun Transit: 1:03 PM
Sunset: 7:52 PM
Daylight: 13 hrs 38 mins
Moonrise: 8:44 PM
Moon Transit: 1:35 AM
Moonset: 7:05 AM
Moon Phase: Full
Moon Illumination: 97.1%

Best Times for Fishing or Hunting

Major Periods

1:05 AM - 3:35 AM
1:33 PM - 4:03 PM

Minor Periods

8:14 PM - 9:44 PM
6:35 AM - 8:05 AM

Action Rating: 5 out of 5

Friday, July 31, 2026

Weather Forecast

Partly Cloudy
91.3°F
78.2°F
84.6°F
73%
0.16 in
65%
0%
12.3 mph
10.7


Air Quality

AQI: 1 - Good
PM2.5: 10.98 μg/m3
PM10: 13.99 μg/m3
Carbon Monoxide: 117.33 μg/m3
Nitrogen Dioxide: 3.28 μg/m3
Sulphur Dioxide: 1.74 μg/m3
Ozone: 82.54 μg/m3

Astronomical

Sunrise: 6:15 AM
Sun Transit: 1:03 PM
Sunset: 7:52 PM
Daylight: 13 hrs 36 mins
Moonrise: 9:13 PM
Moon Transit: 2:20 AM
Moonset: 8:03 AM
Moon Phase: Full
Moon Illumination: 92.0%

Best Times for Fishing or Hunting

Major Periods

1:50 AM - 4:20 AM
2:17 PM - 4:47 PM

Minor Periods

8:43 PM - 10:13 PM
7:33 AM - 9:03 AM

Action Rating: 3 out of 5

Saturday, August 1, 2026

Weather Forecast

Sunny
85.3°F
79.9°F
82°F
77%
0.04 in
57%
0%
13.6 mph
8.6


Air Quality

AQI: 1 - Good
PM2.5: 9.27 μg/m3
PM10: 12.47 μg/m3
Carbon Monoxide: 111.45 μg/m3
Nitrogen Dioxide: 2.94 μg/m3
Sulphur Dioxide: 1.31 μg/m3
Ozone: 69.42 μg/m3

Astronomical

Sunrise: 6:16 AM
Sun Transit: 1:03 PM
Sunset: 7:51 PM
Daylight: 13 hrs 35 mins
Moonrise: 9:41 PM
Moon Transit: 3:03 AM
Moonset: 9:01 AM
Moon Phase: Waning Gibbous
Moon Illumination: 84.9%

Best Times for Fishing or Hunting

Major Periods

2:33 AM - 5:03 AM
3:00 PM - 5:30 PM

Minor Periods

9:11 PM - 10:41 PM
8:31 AM - 10:01 AM

Action Rating: 2 out of 5

Sunday, August 2, 2026

Weather Forecast

Partly Cloudy
86.8°F
78.6°F
82.2°F
77%
0.7 in
79%
0%
15.7 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 5.88 μg/m3
PM10: 7.81 μg/m3
Carbon Monoxide: 136.13 μg/m3
Nitrogen Dioxide: 3.86 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 48.25 μg/m3

Astronomical

Sunrise: 6:17 AM
Sun Transit: 1:03 PM
Sunset: 7:50 PM
Daylight: 13 hrs 34 mins
Moonrise: 10:10 PM
Moon Transit: 3:46 AM
Moonset: 9:59 AM
Moon Phase: Waning Gibbous
Moon Illumination: 75.9%

Best Times for Fishing or Hunting

Major Periods

3:16 AM - 5:46 AM
5:20 PM - 7:50 PM

Minor Periods

9:40 PM - 11:10 PM
9:29 AM - 10:59 AM

Action Rating: 3 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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