Water Temperature of Bay of St. Louis in Bay St. Louis, MS
Current Water Temperature
Measurement Time: Friday, September 12, 2025, 10:18 AM CDT
Today's Tides
High: September 12, 2:35 AM, 2.41 ft
Low: September 12, 1:15 PM, 0.53 ft
Temperature Locations
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Local Points of Interest
Pass Christian, MS; Mississippi Sound; Gulf of MexicoSponsored Content
Station Name: Bay Waveland Yacht Club
Data Source: NOAA Tides and Currents
Elevation Above Sea Level: 0 feet / 0 meters
Sensor Depth: -0.5 feet / -0.2 meters
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 (21.0 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 (64.0 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

Humidity: 58%
Feels Like: 85.3°F
Wind: NE 5.1 mph
Wind Gusts: 6.3 mph
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 3.8
Five Day Weather Forecast

Fri
H: 95°F
L: 74°F

Sat
H: 88°F
L: 73°F

Sun
H: 92°F
L: 73°F

Mon
H: 87°F
L: 73°F

Tue
H: 87°F
L: 75°F
Air Quality
Nitrogen Dioxide: 2.04 μg/m3
Sulphur Dioxide: 5.37 μg/m3
Ozone: 166 μg/m3
Astronomical
Sun Transit: 12:53 AM
Sunset: 7:06 PM
Daylight: 12 hrs 25 mins
Moon Transit: 4:47 AM
Moonset: 12:05 AM
Moon Phase: Waning Gibbous
Moon Illumination: 67.4%
Best Times for Fishing or Hunting
Major Periods
4:17 AM - 6:47 AM4:52 PM - 7:22 PM
Minor Periods
9:54 PM - 11:24 PM11:35 AM - 1:05 PM
Action Rating: 4 out of 5
Air Quality Alert issued September 11 at 3:26PM CDT by NWS New Orleans LA
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Thu September 11, 2025, 3:26 PM
Expires: Fri September 12, 2025, 3:30 PM
The Louisiana Department of Environmental Quality is forecasting an Ozone Advisory Day for Orleans, Jefferson, St John the Baptist, St Charles, St Bernard, St Tammany, and Plaquemines Parishes, . The Air Quality Index indicates that ozone will be at the Orange level, which is unhealthy for sensitive groups. Increasing ozone levels may cause unhealthy air quality during afternoon hours. Active children and adults, the elderly, and people with respiratory diseases such as asthma should avoid prolonged outdoor exertion. Please take whatever voluntary steps you can to reduce emissions that contribute to ozone formation. Drive less and make sure your automobile is in good working condition. Make sure your gas cap is tight. Wait until after 6 PM to refuel your vehicle and use gas powered lawn equipment. More information about current air quality and what you can do to help prevent ozone formation is available at the D E Q website www.deq.louisiana.gov/enviroflash or by calling 8 6 6 8 9 6 5 3 3 7.
Air Quality Alert issued September 12 at 12:09AM CDT by NWS New Orleans LA
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Fri September 12, 2025, 12:09 AM
Expires: Sat September 13, 2025, 12:15 AM
The Louisiana Department of Environmental Quality is forecasting an Ozone Advisory Day for Orleans, Jefferson, St John the Baptist, St Charles, St Bernard, St Tammany, and Plaquemines Parishes, . The Air Quality Index indicates that ozone will be at the Orange level, which is unhealthy for sensitive groups. Increasing ozone levels may cause unhealthy air quality during afternoon hours. Active children and adults, the elderly, and people with respiratory diseases such as asthma should avoid prolonged outdoor exertion. Please take whatever voluntary steps you can to reduce emissions that contribute to ozone formation. Drive less and make sure your automobile is in good working condition. Make sure your gas cap is tight. Wait until after 6 PM to refuel your vehicle and use gas powered lawn equipment. More information about current air quality and what you can do to help prevent ozone formation is available at the D E Q website www.deq.louisiana.gov/enviroflash or by calling 8 6 6 8 9 6 5 3 3 7.
Air Quality Alert issued September 11 at 3:26PM CDT by NWS New Orleans LA
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Thu September 11, 2025, 3:26 PM
Expires: Fri September 12, 2025, 3:30 PM
The Louisiana Department of Environmental Quality is forecasting an Ozone Advisory Day for Orleans, Jefferson, St John the Baptist, St Charles, St Bernard, St Tammany, and Plaquemines Parishes, . The Air Quality Index indicates that ozone will be at the Orange level, which is unhealthy for sensitive groups. Increasing ozone levels may cause unhealthy air quality during afternoon hours. Active children and adults, the elderly, and people with respiratory diseases such as asthma should avoid prolonged outdoor exertion. Please take whatever voluntary steps you can to reduce emissions that contribute to ozone formation. Drive less and make sure your automobile is in good working condition. Make sure your gas cap is tight. Wait until after 6 PM to refuel your vehicle and use gas powered lawn equipment. More information about current air quality and what you can do to help prevent ozone formation is available at the D E Q website www.deq.louisiana.gov/enviroflash or by calling 8 6 6 8 9 6 5 3 3 7.
Air Quality Alert issued September 12 at 12:09AM CDT by NWS New Orleans LA
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Fri September 12, 2025, 12:09 AM
Expires: Sat September 13, 2025, 12:15 AM
The Louisiana Department of Environmental Quality is forecasting an Ozone Advisory Day for Orleans, Jefferson, St John the Baptist, St Charles, St Bernard, St Tammany, and Plaquemines Parishes, . The Air Quality Index indicates that ozone will be at the Orange level, which is unhealthy for sensitive groups. Increasing ozone levels may cause unhealthy air quality during afternoon hours. Active children and adults, the elderly, and people with respiratory diseases such as asthma should avoid prolonged outdoor exertion. Please take whatever voluntary steps you can to reduce emissions that contribute to ozone formation. Drive less and make sure your automobile is in good working condition. Make sure your gas cap is tight. Wait until after 6 PM to refuel your vehicle and use gas powered lawn equipment. More information about current air quality and what you can do to help prevent ozone formation is available at the D E Q website www.deq.louisiana.gov/enviroflash or by calling 8 6 6 8 9 6 5 3 3 7.
Air Quality Alert issued September 11 at 3:26PM CDT by NWS New Orleans LA
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Thu September 11, 2025, 3:26 PM
Expires: Fri September 12, 2025, 3:30 PM
The Louisiana Department of Environmental Quality is forecasting an Ozone Advisory Day for Orleans, Jefferson, St John the Baptist, St Charles, St Bernard, St Tammany, and Plaquemines Parishes, . The Air Quality Index indicates that ozone will be at the Orange level, which is unhealthy for sensitive groups. Increasing ozone levels may cause unhealthy air quality during afternoon hours. Active children and adults, the elderly, and people with respiratory diseases such as asthma should avoid prolonged outdoor exertion. Please take whatever voluntary steps you can to reduce emissions that contribute to ozone formation. Drive less and make sure your automobile is in good working condition. Make sure your gas cap is tight. Wait until after 6 PM to refuel your vehicle and use gas powered lawn equipment. More information about current air quality and what you can do to help prevent ozone formation is available at the D E Q website www.deq.louisiana.gov/enviroflash or by calling 8 6 6 8 9 6 5 3 3 7.
Weather Forecast
Average Temperature: 83.4°F
Average Humidity: 60%
Wind: 10.1 mph
UV Index: 2
Air Quality
Nitrogen Dioxide: 7.5 μg/m3
Sulphur Dioxide: 5.25 μg/m3
Ozone: 134.76 μg/m3
Astronomical
Sun Transit: 12:53 AM
Sunset: 7:06 PM
Daylight: 12 hrs 25 mins
Moon Transit: 4:47 AM
Moonset: 12:05 AM
Moon Phase: Waning Gibbous
Moon Illumination: 67.4%
Best Times for Fishing or Hunting
Major Periods
4:17 AM - 6:47 AM4:52 PM - 7:22 PM
Minor Periods
9:54 PM - 11:24 PM11:35 AM - 1:05 PM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 80.3°F
Average Humidity: 73%
Wind: 11.6 mph
UV Index: 1.9
Air Quality
Nitrogen Dioxide: 6.44 μg/m3
Sulphur Dioxide: 6.37 μg/m3
Ozone: 144 μg/m3
Astronomical
Sun Transit: 12:53 AM
Sunset: 7:05 PM
Daylight: 12 hrs 24 mins
Moon Transit: 5:47 AM
Moonset: 1:15 PM
Moon Phase: Waning Gibbous
Moon Illumination: 56.4%
Best Times for Fishing or Hunting
Major Periods
5:17 AM - 7:47 AM5:53 PM - 8:23 PM
Minor Periods
12:00 AM - 12:00 AM12:45 AM - 2:15 PM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 81.4°F
Average Humidity: 65%
Wind: 10.1 mph
UV Index: 2.1
Air Quality
Nitrogen Dioxide: 6.9 μg/m3
Sulphur Dioxide: 5.26 μg/m3
Ozone: 130.72 μg/m3
Astronomical
Sun Transit: 12:52 AM
Sunset: 7:03 PM
Daylight: 12 hrs 22 mins
Moon Transit: 6:48 AM
Moonset: 2:22 PM
Moon Phase: Last Quarter
Moon Illumination: 45.1%
Best Times for Fishing or Hunting
Major Periods
6:18 AM - 8:48 AM6:55 PM - 9:25 PM
Minor Periods
1:52 PM - 3:22 PM12:00 AM - 12:00 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 79.7°F
Average Humidity: 63%
Wind: 11.4 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 6.51 μg/m3
Sulphur Dioxide: 6.05 μg/m3
Ozone: 138.08 μg/m3
Astronomical
Sun Transit: 12:52 AM
Sunset: 7:02 PM
Daylight: 12 hrs 20 mins
Moon Transit: 7:50 AM
Moonset: 3:19 PM
Moon Phase: Last Quarter
Moon Illumination: 34.0%
Best Times for Fishing or Hunting
Major Periods
7:20 AM - 9:50 AM7:56 PM - 10:26 PM
Minor Periods
2:49 PM - 4:19 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 80.3°F
Average Humidity: 67%
Wind: 9.6 mph
UV Index: 7
Air Quality
Nitrogen Dioxide: 6.73 μg/m3
Sulphur Dioxide: 4.94 μg/m3
Ozone: 134.46 μg/m3
Astronomical
Sun Transit: 12:51 AM
Sunset: 7:01 PM
Daylight: 12 hrs 18 mins
Moon Transit: 8:49 AM
Moonset: 4:09 PM
Moon Phase: Last Quarter
Moon Illumination: 23.8%
Best Times for Fishing or Hunting
Major Periods
8:19 AM - 10:49 AM8:52 PM - 11:22 PM
Minor Periods
3:39 PM - 5:09 PM12:54 AM - 2:24 AM
Action Rating: 2 out of 5