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

Current Water Temperature

82.6°F

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 Mexico

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Bay of St. Louis

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

82.9°F
Sunny
Conditions: Sunny
Humidity: 58%
Feels Like: 85.3°F
Wind: NE 5.1 mph
Wind Gusts: 6.3 mph
Pressure: 30.11 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 3.8

Five Day Weather Forecast

Sunny
Fri
H: 95°F
L: 74°F
Partly Cloudy
Sat
H: 88°F
L: 73°F
Sunny
Sun
H: 92°F
L: 73°F
Sunny
Mon
H: 87°F
L: 73°F
Partly Cloudy
Tue
H: 87°F
L: 75°F

Air Quality

AQI: 2 - Moderate
PM2.5: 24.98 μg/m3
PM10: 26.83 μg/m3
Carbon Monoxide: 416.25 μg/m3
Nitrogen Dioxide: 2.04 μg/m3
Sulphur Dioxide: 5.37 μg/m3
Ozone: 166 μg/m3

Astronomical

Sunrise: 6:41 AM
Sun Transit: 12:53 AM
Sunset: 7:06 PM
Daylight: 12 hrs 25 mins
Moonrise: 10:24 PM
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 AM
4:52 PM - 7:22 PM

Minor Periods

9:54 PM - 11:24 PM
11:35 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.


Friday, September 12, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 83.4°F
Average Humidity: 60%
Chance of Rain: 0%
Wind: 10.1 mph
UV Index: 2

Air Quality

AQI: 2 - Moderate
PM2.5: 25.21 μg/m3
PM10: 25.91 μg/m3
Carbon Monoxide: 433.2 μg/m3
Nitrogen Dioxide: 7.5 μg/m3
Sulphur Dioxide: 5.25 μg/m3
Ozone: 134.76 μg/m3

Astronomical

Sunrise: 6:41 AM
Sun Transit: 12:53 AM
Sunset: 7:06 PM
Daylight: 12 hrs 25 mins
Moonrise: 10:24 PM
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 AM
4:52 PM - 7:22 PM

Minor Periods

9:54 PM - 11:24 PM
11:35 AM - 1:05 PM

Action Rating: 4 out of 5

Saturday, September 13, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 80.3°F
Average Humidity: 73%
Chance of Rain: 0%
Wind: 11.6 mph
UV Index: 1.9

Air Quality

AQI: 2 - Moderate
PM2.5: 25.36 μg/m3
PM10: 26.03 μg/m3
Carbon Monoxide: 418.84 μg/m3
Nitrogen Dioxide: 6.44 μg/m3
Sulphur Dioxide: 6.37 μg/m3
Ozone: 144 μg/m3

Astronomical

Sunrise: 6:41 AM
Sun Transit: 12:53 AM
Sunset: 7:05 PM
Daylight: 12 hrs 24 mins
Moonrise: 11:18 PM
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 AM
5:53 PM - 8:23 PM

Minor Periods

12:00 AM - 12:00 AM
12:45 AM - 2:15 PM

Action Rating: 2 out of 5

Sunday, September 14, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 81.4°F
Average Humidity: 65%
Chance of Rain: 0%
Wind: 10.1 mph
UV Index: 2.1

Air Quality

AQI: 2 - Moderate
PM2.5: 20.34 μg/m3
PM10: 20.96 μg/m3
Carbon Monoxide: 347.28 μg/m3
Nitrogen Dioxide: 6.9 μg/m3
Sulphur Dioxide: 5.26 μg/m3
Ozone: 130.72 μg/m3

Astronomical

Sunrise: 6:42 AM
Sun Transit: 12:52 AM
Sunset: 7:03 PM
Daylight: 12 hrs 22 mins
Moonrise: 12:18 AM
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 AM
6:55 PM - 9:25 PM

Minor Periods

1:52 PM - 3:22 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Monday, September 15, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 79.7°F
Average Humidity: 63%
Chance of Rain: 0%
Wind: 11.4 mph
UV Index: 0

Air Quality

AQI: 2 - Moderate
PM2.5: 22.85 μg/m3
PM10: 23.13 μg/m3
Carbon Monoxide: 354.39 μg/m3
Nitrogen Dioxide: 6.51 μg/m3
Sulphur Dioxide: 6.05 μg/m3
Ozone: 138.08 μg/m3

Astronomical

Sunrise: 6:42 AM
Sun Transit: 12:52 AM
Sunset: 7:02 PM
Daylight: 12 hrs 20 mins
Moonrise: 12:19 AM
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 AM
7:56 PM - 10:26 PM

Minor Periods

2:49 PM - 4:19 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Tuesday, September 16, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 80.3°F
Average Humidity: 67%
Chance of Rain: 0%
Wind: 9.6 mph
UV Index: 7

Air Quality

AQI: 2 - Moderate
PM2.5: 23.75 μg/m3
PM10: 23.89 μg/m3
Carbon Monoxide: 395.76 μg/m3
Nitrogen Dioxide: 6.73 μg/m3
Sulphur Dioxide: 4.94 μg/m3
Ozone: 134.46 μg/m3

Astronomical

Sunrise: 6:43 AM
Sun Transit: 12:51 AM
Sunset: 7:01 PM
Daylight: 12 hrs 18 mins
Moonrise: 1:24 AM
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 AM
8:52 PM - 11:22 PM

Minor Periods

3:39 PM - 5:09 PM
12:54 AM - 2:24 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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