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

Current Water Temperature

79.0°F

Measurement Time: Friday, June 19, 2026, 3:24 PM CDT

Today's Tides

Low: June 19, 1:19 AM, 0.0 ft
 High: June 19, 2:54 PM, 1.9 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

92.1°F
Partly cloudy
Partly cloudy
120.2°F
103.9°F
63%
SSE 8.7 mph
12.2 mph
87.2°F
79.5°F
0 in
50%
9 mi
1014 mbar
8.4

Five Day Weather Forecast

Patchy rain nearby
Fri
H: 89°F
L: 82°F
Patchy rain nearby
Sat
H: 88°F
L: 79°F
Patchy rain nearby
Sun
H: 89°F
L: 79°F
Partly Cloudy
Mon
H: 89°F
L: 78°F
Sunny
Tue
H: 90°F
L: 78°F

Air Quality

AQI: 1 - Good
PM2.5: 9.2 μg/m3
PM10: 12.3 μg/m3
Carbon Monoxide: 103 μg/m3
Nitrogen Dioxide: 0.6 μg/m3
Sulphur Dioxide: 0.8 μg/m3
Ozone: 76 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 12:58 AM
Sunset: 8:02 PM
Daylight: 14 hrs 6 mins
Moonrise: 10:51 AM
Moon Transit: 5:29 PM
Moonset: 12:27 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.3%

Best Times for Fishing or Hunting

Major Periods

4:41 AM - 7:11 AM
4:59 PM - 7:29 PM

Minor Periods

10:21 AM - 11:51 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Heat Advisory issued June 19 at 11:48AM CDT until June 19 at 7:00PM CDT by NWS New Orleans LA

Effective: Fri June 19, 2026, 11:48 AM
Expires: Fri June 19, 2026, 7:00 PM

* WHAT...Heat index values up to 107. * WHERE...Northern Harrison, Northern Jackson, Southern Harrison, and Southern Jackson Counties. * WHEN...Until 7 PM CDT this evening. * IMPACTS...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. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.


Flood Warning issued June 18 at 8:34PM CDT until June 20 at 5:55AM CDT by NWS New Orleans LA

Effective: Thu June 18, 2026, 8:34 PM
Expires: Fri June 19, 2026, 2:45 PM

...The Flood Warning is extended for the following rivers in Mississippi... Jourdan River Near Kiln/Bay St. Louis affecting Hancock County. Biloxi River Near Lyman affecting Harrison County. Tchoutacabouffa River Above D'Iberville affecting Harrison County. ...The Flood Warning continues for the following rivers in Mississippi... Wolf River Above Gulfport affecting Harrison County. For the Jourdan River...including Kiln/Bay St. Louis...Moderate flooding is forecast. For the Wolf River...including Gulfport...Moderate flooding is forecast. For the Biloxi River...including Lyman...Moderate flooding is forecast. For the Tchoutacabouffa River...including D'Iberville...Moderate flooding is forecast. * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Jourdan River near Kiln/Bay St. Louis. * WHEN...Until late Friday night. * IMPACTS...At 8.0 feet, The Jourdan River Steamer restaurant will flood. Drainage ditches along Mississippi Highway 43 will be running full and near the shoulder of the road at the bridge approach. Water will cover most of the Jourdan River Steamer property and residential property on the south bank. * ADDITIONAL DETAILS... - At 7:45 PM CDT Thursday the stage was 7.9 feet. - Bankfull stage is 4.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:45 PM CDT Thursday was 7.9 feet. - Forecast...The river will oscillate above flood stage with a maximum value of 9.0 feet tomorrow morning. It will fall below flood stage late tomorrow evening. - Flood stage is 6.0 feet. - Flood History...This crest compares to a previous crest of 9.5 feet on 08/31/2021. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely. Additional information is available at www.weather.gov/lix. Click on the Rivers and Lakes menu for forecasts and observations. The next statement will be issued when updates are needed.


Flood Warning issued June 19 at 1:31AM CDT until June 20 at 9:00AM CDT by NWS New Orleans LA

Effective: Fri June 19, 2026, 1:31 AM
Expires: Fri June 19, 2026, 7:45 PM

...Forecast flooding changed from Moderate to Major severity and increased in duration for the following rivers in Mississippi... Jourdan River Near Kiln/Bay St. Louis affecting Hancock County. For the Jourdan River...including Kiln/Bay St. Louis...Major flooding is forecast. * WHAT...Moderate flooding is occurring and major flooding is forecast. * WHERE...Jourdan River near Kiln/Bay St. Louis. * WHEN...Until Saturday morning. * IMPACTS...At 10.0 feet, Homes along the river on the south bank will flood. Water will be over the road near the bridge approach. Backwater flooding will threaten property east of Highway 43. Access to the river will be restricted. * ADDITIONAL DETAILS... - At 12:45 AM CDT Friday the stage was 9.4 feet. - Bankfull stage is 4.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 12:45 AM CDT Friday was 9.4 feet. - Forecast...The river is expected to rise to a crest of 10.5 feet this morning. It will then fall below flood stage late tonight. - Flood stage is 6.0 feet. - Flood History...This crest compares to a previous crest of 10.7 feet on 08/29/2012. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional information is available at www.weather.gov/lix. Click on the Rivers and Lakes menu for forecasts and observations. The next statement will be issued when updates are needed.


Flood Warning issued June 19 at 8:35AM CDT until June 20 at 10:49AM CDT by NWS New Orleans LA

Effective: Fri June 19, 2026, 8:35 AM
Expires: Sat June 20, 2026, 2:45 AM

...The Flood Warning is extended for the following rivers in Mississippi... Jourdan River Near Kiln/Bay St. Louis affecting Hancock County. For the Jourdan River...including Kiln/Bay St. Louis...Major flooding is forecast. * WHAT...Major flooding is occurring and major flooding is forecast. * WHERE...Jourdan River near Kiln/Bay St. Louis. * WHEN...Until Saturday morning. * IMPACTS...At 10.0 feet, Homes along the river on the south bank will flood. Water will be over the road near the bridge approach. Backwater flooding will threaten property east of Highway 43. Access to the river will be restricted. At 12.0 feet, Major flooding will occur downstream of Highway 43. The highway will be closed with deep swift water over the roadway north of the bridge. * ADDITIONAL DETAILS... - At 7:45 AM CDT Friday the stage was 10.7 feet. - Bankfull stage is 4.0 feet. - Forecast...The river is expected to rise to a crest of 11.0 feet this afternoon. - Flood stage is 6.0 feet. - Flood History...This crest compares to a previous crest of 10.7 feet on 08/29/2012. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely. Additional information is available at www.weather.gov/lix. Click on the Rivers and Lakes menu for forecasts and observations. The next statement will be issued when updates are needed.


Flood Warning issued June 18 at 8:34PM CDT until June 23 at 9:00PM CDT by NWS New Orleans LA

Effective: Thu June 18, 2026, 8:34 PM
Expires: Fri June 19, 2026, 2:45 PM

...The Flood Warning is extended for the following rivers in Mississippi... Jourdan River Near Kiln/Bay St. Louis affecting Hancock County. Biloxi River Near Lyman affecting Harrison County. Tchoutacabouffa River Above D'Iberville affecting Harrison County. ...The Flood Warning continues for the following rivers in Mississippi... Wolf River Above Gulfport affecting Harrison County. For the Jourdan River...including Kiln/Bay St. Louis...Moderate flooding is forecast. For the Wolf River...including Gulfport...Moderate flooding is forecast. For the Biloxi River...including Lyman...Moderate flooding is forecast. For the Tchoutacabouffa River...including D'Iberville...Moderate flooding is forecast. * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Wolf River above Gulfport. * WHEN...Until Tuesday evening. * IMPACTS...At 15.0 feet, Major flooding of the area will occur. Several homes on Magnolia Drive will be flooded along with business structures along Menge Avenue. The Menge Avenue bridge will be under water. Water will be in several homes along the river near the Bells Ferry Road bridge. Bells Ferry Road will be closed within a mile of the bridge as the road will be covered by swift moving river current. * ADDITIONAL DETAILS... - At 7:45 PM CDT Thursday the stage was 11.3 feet. - Bankfull stage is 7.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:45 PM CDT Thursday was 11.3 feet. - Forecast...The river is expected to rise to a crest of 14.0 feet early tomorrow afternoon. It will then fall below flood stage Tuesday afternoon. - Flood stage is 8.0 feet. - Flood History...This crest compares to a previous crest of 15.4 feet on 05/10/1995. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely. Additional information is available at www.weather.gov/lix. Click on the Rivers and Lakes menu for forecasts and observations. The next statement will be issued when updates are needed.


Friday, June 19, 2026

Weather Forecast

Patchy rain nearby
88.5°F
82.2°F
84.3°F
86%
0.11 in
66%
0%
12.1 mph
11.1


Air Quality

AQI: 1 - Good
PM2.5: 7.31 μg/m3
PM10: 9.95 μg/m3
Carbon Monoxide: 103.5 μg/m3
Nitrogen Dioxide: 1.43 μg/m3
Sulphur Dioxide: 0.67 μg/m3
Ozone: 54.96 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 12:58 AM
Sunset: 8:02 PM
Daylight: 14 hrs 6 mins
Moonrise: 10:51 AM
Moon Transit: 5:29 PM
Moonset: 12:27 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.3%

Best Times for Fishing or Hunting

Major Periods

4:41 AM - 7:11 AM
4:59 PM - 7:29 PM

Minor Periods

10:21 AM - 11:51 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, June 20, 2026

Weather Forecast

Patchy rain nearby
88.1°F
79°F
82.9°F
82%
0.12 in
69%
0%
9.6 mph
10.4


Air Quality

AQI: 1 - Good
PM2.5: 5.2 μg/m3
PM10: 7.33 μg/m3
Carbon Monoxide: 102.17 μg/m3
Nitrogen Dioxide: 1.77 μg/m3
Sulphur Dioxide: 0.52 μg/m3
Ozone: 45.88 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 12:58 AM
Sunset: 8:02 PM
Daylight: 14 hrs 6 mins
Moonrise: 11:53 AM
Moon Transit: 6:15 PM
Moonset: 12:00 AM
Moon Phase: Waxing Crescent
Moon Illumination: 27.8%

Best Times for Fishing or Hunting

Major Periods

5:28 AM - 7:58 AM
5:45 PM - 8:15 PM

Minor Periods

11:23 AM - 12:53 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Sunday, June 21, 2026

Weather Forecast

Patchy rain nearby
88.8°F
78.5°F
82.9°F
77%
0.01 in
23%
0%
13.2 mph
11.6


Air Quality

AQI: 1 - Good
PM2.5: 5.87 μg/m3
PM10: 8.15 μg/m3
Carbon Monoxide: 105.5 μg/m3
Nitrogen Dioxide: 1.15 μg/m3
Sulphur Dioxide: 0.53 μg/m3
Ozone: 57.25 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 1:00 PM
Sunset: 8:02 PM
Daylight: 14 hrs 6 mins
Moonrise: 12:52 AM
Moon Transit: 6:58 PM
Moonset: 12:30 AM
Moon Phase: First Quarter
Moon Illumination: 38.5%

Best Times for Fishing or Hunting

Major Periods

6:12 AM - 8:42 AM
6:28 PM - 8:58 PM

Minor Periods

12:22 AM - 1:52 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Monday, June 22, 2026

Weather Forecast

Partly Cloudy
89.2°F
77.9°F
83.3°F
76%
0 in
9%
0%
13.2 mph
11.5


Air Quality

AQI: 1 - Good
PM2.5: 6.21 μg/m3
PM10: 9 μg/m3
Carbon Monoxide: 107.79 μg/m3
Nitrogen Dioxide: 1.1 μg/m3
Sulphur Dioxide: 0.69 μg/m3
Ozone: 61.29 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 1:00 PM
Sunset: 8:03 PM
Daylight: 14 hrs 6 mins
Moonrise: 1:49 PM
Moon Transit: 7:40 PM
Moonset: 12:58 AM
Moon Phase: First Quarter
Moon Illumination: 49.7%

Best Times for Fishing or Hunting

Major Periods

6:55 AM - 9:25 AM
7:10 PM - 9:40 PM

Minor Periods

1:19 PM - 2:49 PM
12:28 AM - 1:58 AM

Action Rating: 2 out of 5

Tuesday, June 23, 2026

Weather Forecast

Sunny
90.4°F
78°F
83.6°F
77%
0 in
10%
0%
10.5 mph
11.4


Air Quality

AQI: 1 - Good
PM2.5: 6.51 μg/m3
PM10: 9.23 μg/m3
Carbon Monoxide: 121.38 μg/m3
Nitrogen Dioxide: 4.43 μg/m3
Sulphur Dioxide: 1.43 μg/m3
Ozone: 34.5 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 1:00 PM
Sunset: 8:03 PM
Daylight: 14 hrs 6 mins
Moonrise: 2:46 PM
Moon Transit: 8:23 PM
Moonset: 1:25 AM
Moon Phase: First Quarter
Moon Illumination: 61.0%

Best Times for Fishing or Hunting

Major Periods

7:37 AM - 10:07 AM
7:53 PM - 10:23 PM

Minor Periods

2:16 PM - 3:46 PM
12:55 AM - 2:25 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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