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

Current Water Temperature

79.5°F

Measurement Time: Sunday, June 21, 2026, 5:06 AM CDT

Today's Tides

Low: June 21, 1:01 AM, 0.6 ft
 High: June 21, 10:35 AM, 1.2 ft
Low: June 21, 11:36 PM, 0.8 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

75°F
Partly cloudy
Partly cloudy
79.2°F
89.1°F
96%
SSW 9.4 mph
15.3 mph
80.8°F
77.6°F
0.01 in
50%
9 mi
1014 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Sun
H: 90°F
L: 79°F
Partly Cloudy
Mon
H: 90°F
L: 78°F
Sunny
Tue
H: 91°F
L: 78°F
Moderate rain
Wed
H: 90°F
L: 74°F
Patchy rain nearby
Thu
H: 88°F
L: 75°F

Air Quality

AQI: 1 - Good
PM2.5: 4.4 μg/m3
PM10: 5.9 μg/m3
Carbon Monoxide: 101 μg/m3
Nitrogen Dioxide: 1.7 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 45 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

Flood Warning issued June 20 at 6:47AM CDT until June 24 at 4:36AM CDT by NWS New Orleans LA

Effective: Sat June 20, 2026, 6:47 AM
Expires: Sun June 21, 2026, 1:00 AM

...The Flood Warning is extended for the following rivers in Mississippi... Jourdan River Near Kiln/Bay St. Louis affecting Hancock County. ...The Flood Warning continues for the following rivers in Mississippi... Wolf River Above Gulfport affecting Harrison County. Biloxi River Near Lyman affecting Harrison County. For the Jourdan River...including Kiln/Bay St. Louis...Minor flooding is forecast. For the Wolf River...including Gulfport...Moderate flooding is forecast. For the Biloxi River...including Lyman...Moderate flooding is forecast. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. This approaches the flood of record. * WHERE...Wolf River above Gulfport. * WHEN...Until late Tuesday night. * 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 5:45 AM CDT Saturday the stage was 14.5 feet. - Bankfull stage is 7.0 feet. - Forecast...The river is falling and expected to drop below flood stage late Tuesday evening and continue falling. - 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. 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 20 at 10:21AM CDT until June 23 at 12:00PM CDT by NWS New Orleans LA

Effective: Sat June 20, 2026, 10:21 AM
Expires: Sun June 21, 2026, 4:30 AM

...The Flood Warning continues for the following rivers in Mississippi... Jourdan River Near Kiln/Bay St. Louis affecting Hancock County. Wolf River Above Gulfport affecting Harrison County. ...The Flood Warning is extended for the following rivers in Mississippi... Biloxi River Near Lyman affecting Harrison County. Tchoutacabouffa River Above D'Iberville affecting Harrison County. For the Jourdan River...including Kiln/Bay St. Louis...Minor 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...Minor flooding is forecast. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. This approaches the flood of record. * WHERE...Wolf River above Gulfport. * WHEN...Until Tuesday afternoon. * 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 9:45 AM CDT Saturday the stage was 13.9 feet. - Bankfull stage is 7.0 feet. - Forecast...The river is falling and expected to drop below flood stage Tuesday morning. - Flood stage is 8.0 feet. - Flood History...This crest compares to a previous crest of 12.6 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. 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 20 at 8:30PM CDT until June 23 at 12:00PM CDT by NWS New Orleans LA

Effective: Sat June 20, 2026, 8:30 PM
Expires: Sun June 21, 2026, 2:30 PM

...The Flood Warning continues for the following rivers in Mississippi... Biloxi River Near Lyman affecting Harrison County. Wolf River Above Gulfport affecting Harrison County. ...The Flood Warning is extended for the following rivers in Mississippi... Tchoutacabouffa River Above D'Iberville affecting Harrison County. For the Wolf River...including Gulfport...Minor flooding is forecast. For the Biloxi River...including Lyman...Minor flooding is forecast. For the Tchoutacabouffa River...including D'Iberville...Minor flooding is forecast. * WHAT...Moderate flooding is occurring and minor flooding is forecast. * WHERE...Wolf River above Gulfport. * WHEN...Until Tuesday afternoon. * IMPACTS...At 12.0 feet, 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 Saturday the stage was 12.5 feet. - Bankfull stage is 7.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:45 PM CDT Saturday was 13.3 feet. - Forecast...The river is expected to fall below flood stage Tuesday morning and continue falling to 4.8 feet Thursday evening. - Flood stage is 8.0 feet. - Flood History...This crest compares to a previous crest of 12.4 feet on 06/20/2021. - 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 20 at 8:23PM CDT by NWS New Orleans LA

Effective: Sat June 20, 2026, 8:23 PM
Expires: Sun June 21, 2026, 2:30 PM

...The Flood Warning continues for the following rivers in Louisiana...Mississippi... Pearl River Near Bogalusa affecting Pearl River and Washington Counties. Pearl River Near Pearl River affecting Pearl River, St. Tammany and Hancock Counties. For the Lower Pearl River...including Bogalusa, Pearl River... Moderate flooding is forecast. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. The river has crested and begun a slow fall. * WHERE...Pearl River near Pearl River. * WHEN...Until further notice. * IMPACTS...At 17.0 feet, When the river is falling, water on low lying property and over the lower portions of streets in River Gardens Subdivision will slowly begin to drain. * ADDITIONAL DETAILS... - At 8:00 PM CDT Saturday the stage was 17.3 feet. - Bankfull stage is 12.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:00 PM CDT Saturday was 17.8 feet. - Forecast...The river is expected to fall to 14.4 feet Tuesday, June 30. - Flood stage is 14.0 feet. - Flood History...This crest compares to a previous crest of 17.2 feet on 12/21/1961. - 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 20 at 6:47AM CDT until June 22 at 10:49AM CDT by NWS New Orleans LA

Effective: Sat June 20, 2026, 6:47 AM
Expires: Sun June 21, 2026, 1:00 AM

...The Flood Warning is extended for the following rivers in Mississippi... Jourdan River Near Kiln/Bay St. Louis affecting Hancock County. ...The Flood Warning continues for the following rivers in Mississippi... Wolf River Above Gulfport affecting Harrison County. Biloxi River Near Lyman affecting Harrison County. For the Jourdan River...including Kiln/Bay St. Louis...Minor flooding is forecast. For the Wolf River...including Gulfport...Moderate flooding is forecast. For the Biloxi River...including Lyman...Moderate flooding is forecast. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Biloxi River near Lyman. * WHEN...Until Monday morning. * IMPACTS...At 17.0 feet, There will be major flooding on Loraine Road near the Lorraine Road bridge. Major roads will be closed including Lamey Bridge Road and Old Highway 49 at the Little Biloxi River. Major flooding will occur in Retreat and Riverland Village Subdivisions. * ADDITIONAL DETAILS... - At 5:45 AM CDT Saturday the stage was 17.3 feet. - Bankfull stage is 9.0 feet. - Forecast...The river is falling and expected to drop below flood stage early Monday morning. - Flood stage is 12.0 feet. - Flood History...This crest compares to a previous crest of 17.3 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. 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.


Sunday, June 21, 2026

Weather Forecast

Patchy rain nearby
89.6°F
78.6°F
81.8°F
85%
0.03 in
51%
0%
10.7 mph
11.6


Air Quality

AQI: 1 - Good
PM2.5: 5.81 μg/m3
PM10: 8.04 μg/m3
Carbon Monoxide: 105.21 μg/m3
Nitrogen Dioxide: 1.28 μg/m3
Sulphur Dioxide: 0.69 μg/m3
Ozone: 59.58 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
89.6°F
78.2°F
83.3°F
77%
0 in
17%
0%
12.1 mph
11.7


Air Quality

AQI: 1 - Good
PM2.5: 10.09 μg/m3
PM10: 15.27 μg/m3
Carbon Monoxide: 104.83 μg/m3
Nitrogen Dioxide: 1.2 μg/m3
Sulphur Dioxide: 0.8 μg/m3
Ozone: 62.42 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
90.6°F
77.8°F
83.5°F
76%
0 in
11%
0%
10.7 mph
11.6


Air Quality

AQI: 1 - Good
PM2.5: 10.96 μg/m3
PM10: 16.15 μg/m3
Carbon Monoxide: 111.43 μg/m3
Nitrogen Dioxide: 3.29 μg/m3
Sulphur Dioxide: 1.39 μg/m3
Ozone: 61.79 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

Wednesday, June 24, 2026

Weather Forecast

Moderate rain
89.7°F
73.9°F
81.4°F
75%
0.21 in
70%
0%
9.6 mph
11


Air Quality

AQI: 1 - Good
PM2.5: 11.73 μg/m3
PM10: 16.98 μg/m3
Carbon Monoxide: 142 μg/m3
Nitrogen Dioxide: 3.85 μg/m3
Sulphur Dioxide: 1.41 μg/m3
Ozone: 64.5 μg/m3

Astronomical

Sunrise: 5:57 AM
Sun Transit: 1:00 PM
Sunset: 8:03 PM
Daylight: 14 hrs 6 mins
Moonrise: 3:43 PM
Moon Transit: 9:07 PM
Moonset: 1:55 AM
Moon Phase: First Quarter
Moon Illumination: 71.7%

Best Times for Fishing or Hunting

Major Periods

8:20 AM - 10:50 AM
8:37 PM - 11:07 PM

Minor Periods

3:13 PM - 4:43 PM
1:25 AM - 2:55 AM

Action Rating: 2 out of 5

Thursday, June 25, 2026

Weather Forecast

Patchy rain nearby
88.4°F
75°F
80.7°F
77%
0.01 in
21%
0%
11 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 11.61 μg/m3
PM10: 16.93 μg/m3
Carbon Monoxide: 141.5 μg/m3
Nitrogen Dioxide: 3.43 μg/m3
Sulphur Dioxide: 0.88 μg/m3
Ozone: 52.88 μg/m3

Astronomical

Sunrise: 5:57 AM
Sun Transit: 1:00 PM
Sunset: 8:03 PM
Daylight: 14 hrs 6 mins
Moonrise: 4:40 PM
Moon Transit: 9:53 PM
Moonset: 2:27 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.2%

Best Times for Fishing or Hunting

Major Periods

9:05 AM - 11:35 AM
9:23 PM - 11:53 PM

Minor Periods

4:10 PM - 5:40 PM
1:57 AM - 3:27 AM

Action Rating: 2 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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