Water Temperature of the Severn River in Annapolis, MD

Current Water Temperature

78.1°F

Measurement Time: Friday, August 22, 2025, 5:18 PM EDT

Today's Tides

High: August 22, 5:28 AM, 1.75 ft
 Low: August 22, 11:54 AM, 0.73 ft
High: August 22, 5:18 PM, 1.37 ft
 Low: August 22, 11:24 PM, 0.47 ft

Temperature Locations

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Local Points of Interest

Santee Basin; College Creek; Annapolis Roads; Whitehall Bay; Cheasapeake Bay; Harwood, MD

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Severn River

Station Name: Annapolis
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 16 feet / 5 meters

Sensor Depth: -3.0 feet / -0.9 meters

Nearest Address:
220 Cooper Rd
Annapolis, MD 21402
Anne Arundel County

GPS Coordinates: 38.983, -76.479

Nearby Water Temperatures

Chesapeake Bay, Annapolis, MD (2.2 mi)
Chesapeake Bay, Tolchester Beach, MD (20.3 mi)
Northwest Harbor, Baltimore, MD (20.3 mi)
Herring Run, Baltimore, MD (23.5 mi)
Northeast Branch Anacostia River, Riverdale Park, MD (24.1 mi)
Paint Branch, Calverton, MD (26.3 mi)
Sligo Creek, Takoma Park, MD (28.2 mi)
Chesapeake Bay, Cambridge, MD (29.7 mi)
Washington Channel, Washington, DC (30.1 mi)
Scotts Level Branch, Milford Mill, MD (30.2 mi)
Foster Branch, Joppatowne, MD (30.3 mi)
Patuxent River, Brighton, MD (31.7 mi)
Plumtree Run, Bel Air, MD (36.2 mi)
Choptank River, Cambridge, MD (36.2 mi)
Dead Run, McLean, VA (37.5 mi)

Weather for Annapolis, Maryland

Current Weather

78.1°F
Sunny
Conditions: Sunny
Humidity: 43%
Feels Like: 80°F
Wind: SE 4 mph
Wind Gusts: 5.6 mph
Pressure: 30.05 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 2.3

Five Day Weather Forecast

Sunny
Fri
H: 83°F
L: 69°F
Sunny
Sat
H: 82°F
L: 71°F
Sunny
Sun
H: 83°F
L: 73°F
Cloudy
Mon
H: 87°F
L: 72°F
Sunny
Tue
H: 77°F
L: 62°F

Air Quality

AQI: 1 - Good
PM2.5: 8.88 μg/m3
PM10: 8.88 μg/m3
Carbon Monoxide: 336.7 μg/m3
Nitrogen Dioxide: 12.21 μg/m3
Sulphur Dioxide: 3.7 μg/m3
Ozone: 113 μg/m3

Astronomical

Sunrise: 6:26 AM
Sun Transit: 1:08 PM
Sunset: 7:51 PM
Daylight: 13 hrs 24 mins
Moonrise: 5:33 AM
Moon Transit: 12:45 AM
Moonset: 7:46 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

1:43 AM - 4:13 AM
12:15 AM - 2:45 PM

Minor Periods

7:16 PM - 8:46 PM
5:03 AM - 6:33 AM

Action Rating: 4 out of 5

Coastal Flood Warning issued August 22 at 10:45AM EDT until August 24 at 10:00AM EDT by NWS Baltimore MD/Washington DC

Effective: Fri August 22, 2025, 10:45 AM
Expires: Fri August 22, 2025, 6:45 PM

* WHAT...Two to two and half feet of inundation above ground level in low lying areas due to tidal flooding. * WHERE...Shoreline in Anne Arundel County. * WHEN...Until 10 AM EDT Sunday, especially around the time of high tide. * IMPACTS...At 3.5 feet, water reaches the floor of the Maritime Museum in Annapolis, begins to cover Bowyer Road on the Naval Academy campus, and numerous businesses on Dock Street are flooded, along with the City Dock parking lot. Bayside Beach begins to flood around Harbor Rd and Lake Dr. * ADDITIONAL DETAILS...Tides two to two and a half feet above normal. The next high tide at Annapolis U.S. Naval Academy is at 5:23 PM and 6:10 AM.

Take the necessary actions to protect flood-prone property. If travel is required, do not drive around barricades or through water of unknown depth.


Coastal Flood Warning issued August 22 at 10:45AM EDT until August 24 at 10:00AM EDT by NWS Baltimore MD/Washington DC

Effective: Fri August 22, 2025, 10:45 AM
Expires: Fri August 22, 2025, 6:45 PM

* WHAT...Two to two and half feet of inundation above ground level in low lying areas due to tidal flooding. * WHERE...Shoreline in Anne Arundel County. * WHEN...Until 10 AM EDT Sunday, especially around the time of high tide. * IMPACTS...At 3.5 feet, water reaches the floor of the Maritime Museum in Annapolis, begins to cover Bowyer Road on the Naval Academy campus, and numerous businesses on Dock Street are flooded, along with the City Dock parking lot. Bayside Beach begins to flood around Harbor Rd and Lake Dr. * ADDITIONAL DETAILS...Tides two to two and a half feet above normal. The next high tide at Annapolis U.S. Naval Academy is at 5:23 PM and 6:10 AM.

Take the necessary actions to protect flood-prone property. If travel is required, do not drive around barricades or through water of unknown depth.


Coastal Flood Advisory issued August 22 at 4:52AM EDT until August 23 at 9:00AM EDT by NWS Mount Holly NJ

Effective: Fri August 22, 2025, 4:52 AM
Expires: Fri August 22, 2025, 6:00 PM

* WHAT...Up to one half foot of inundation above ground level in low-lying areas near shorelines and tidal waterways. * WHERE...Queen Annes, Talbot and Caroline. * WHEN...Until 9 AM EDT Saturday. * IMPACTS...At this level, flooding begins on the most vulnerable roads in bayside communities and along tidal waterways. Some partial or full road closures are possible.

A Coastal Flood Advisory means that minor tidal flooding is expected. Minor tidal flooding often results in some road closures. Usually, the most vulnerable roadways will flood. Do not leave your vehicle at a location that is prone to tidal flooding. Do not drive your vehicle through flood waters. The water may be deeper than you think it is. You will be putting yourself in danger and your vehicle may be damaged, leading to costly repairs. Visit the Advanced Hydrologic Prediction Service at water.weather.gov/ahps for additional water level and flood impact information for your local tide gauge.


Coastal Flood Advisory issued August 22 at 4:52AM EDT until August 23 at 9:00AM EDT by NWS Mount Holly NJ

Effective: Fri August 22, 2025, 4:52 AM
Expires: Fri August 22, 2025, 6:00 PM

* WHAT...Up to one half foot of inundation above ground level in low-lying areas near shorelines and tidal waterways. * WHERE...Queen Annes, Talbot and Caroline. * WHEN...Until 9 AM EDT Saturday. * IMPACTS...At this level, flooding begins on the most vulnerable roads in bayside communities and along tidal waterways. Some partial or full road closures are possible.

A Coastal Flood Advisory means that minor tidal flooding is expected. Minor tidal flooding often results in some road closures. Usually, the most vulnerable roadways will flood. Do not leave your vehicle at a location that is prone to tidal flooding. Do not drive your vehicle through flood waters. The water may be deeper than you think it is. You will be putting yourself in danger and your vehicle may be damaged, leading to costly repairs. Visit the Advanced Hydrologic Prediction Service at water.weather.gov/ahps for additional water level and flood impact information for your local tide gauge.


Coastal Flood Advisory issued August 22 at 10:45AM EDT until August 25 at 6:00AM EDT by NWS Baltimore MD/Washington DC

Effective: Fri August 22, 2025, 10:45 AM
Expires: Fri August 22, 2025, 6:45 PM

* WHAT...Two to two and half feet of inundation above ground level in low lying areas due to tidal flooding. * WHERE...Southern Baltimore, Calvert and Southeast Harford Counties. * WHEN...Until 6 AM EDT Monday, especially around the time of high tide. * IMPACTS...At 4.25 feet, the concrete promenade at Fells Point begins to flood. Water also begins to cover the boardwalk at the Maritime Park water taxi stop. Thames Street is flooded, and much of the promenade in the Inner Harbor is flooded. At 3.0 feet, water begins encroaching upon yards in the Bowleys Quarters area. At 4.5 feet, portions of the Havre de Grace Yacht Basin are flooded, along with Hutchins Park. At 3.0 feet, water is expected to reach backyards near 9th Street in North Beach, and could approach 9th Street. At 3.5 feet, yards are flooded near Charles Street and Williams Street in Solomons. Nearby parking lots and the streets themselves are covered by more than a half foot of water. * ADDITIONAL DETAILS...Tides two to two and a half feet above normal. The next high tide at Chesapeake Beach is at 4:03 PM and 4:46 AM. The next high tide at Fort McHenry Baltimore is at 6:50 PM and 7:33 AM. The next high tide at Solomons Island is at 2:15 PM and 2:56 AM. The next high tide at Havre de Grace is at 10:20 PM and 10:26 AM.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.


Friday, August 22, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 74.9°F
Average Humidity: 72%
Chance of Rain: 0%
Wind: 10.7 mph
UV Index: 2.2

Air Quality

AQI: 1 - Good
PM2.5: 9.85 μg/m3
PM10: 10.09 μg/m3
Carbon Monoxide: 345.28 μg/m3
Nitrogen Dioxide: 11.07 μg/m3
Sulphur Dioxide: 5.22 μg/m3
Ozone: 101.64 μg/m3

Astronomical

Sunrise: 6:26 AM
Sun Transit: 1:08 PM
Sunset: 7:51 PM
Daylight: 13 hrs 24 mins
Moonrise: 5:33 AM
Moon Transit: 12:45 AM
Moonset: 7:46 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

1:43 AM - 4:13 AM
12:15 AM - 2:45 PM

Minor Periods

7:16 PM - 8:46 PM
5:03 AM - 6:33 AM

Action Rating: 4 out of 5

Saturday, August 23, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 76°F
Average Humidity: 67%
Chance of Rain: 0%
Wind: 17 mph
UV Index: 2.1

Air Quality

AQI: 1 - Good
PM2.5: 10.12 μg/m3
PM10: 11.47 μg/m3
Carbon Monoxide: 318.87 μg/m3
Nitrogen Dioxide: 6.58 μg/m3
Sulphur Dioxide: 3.12 μg/m3
Ozone: 102.04 μg/m3

Astronomical

Sunrise: 6:27 AM
Sun Transit: 1:08 PM
Sunset: 7:49 PM
Daylight: 13 hrs 22 mins
Moonrise: 6:42 AM
Moon Transit: 1:31 PM
Moonset: 8:11 PM
Moon Phase: New
Moon Illumination: 1.4%

Best Times for Fishing or Hunting

Major Periods

2:30 AM - 5:00 AM
1:01 PM - 3:31 PM

Minor Periods

7:41 PM - 9:11 PM
6:12 AM - 7:42 AM

Action Rating: 5 out of 5

Sunday, August 24, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 76.9°F
Average Humidity: 77%
Chance of Rain: 0%
Wind: 14.3 mph
UV Index: 2.1

Air Quality

AQI: 1 - Good
PM2.5: 11.39 μg/m3
PM10: 15.44 μg/m3
Carbon Monoxide: 270.17 μg/m3
Nitrogen Dioxide: 4.47 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 92.96 μg/m3

Astronomical

Sunrise: 6:28 AM
Sun Transit: 1:08 PM
Sunset: 7:48 PM
Daylight: 13 hrs 20 mins
Moonrise: 7:46 AM
Moon Transit: 2:14 PM
Moonset: 8:33 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

3:14 AM - 5:44 AM
1:44 PM - 4:14 PM

Minor Periods

8:03 PM - 9:33 PM
7:16 AM - 8:46 AM

Action Rating: 4 out of 5

Monday, August 25, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 77.6°F
Average Humidity: 72%
Chance of Rain: 0%
Wind: 13.2 mph
UV Index: 2.1

Air Quality

AQI: 1 - Good
PM2.5: 13.96 μg/m3
PM10: 16.88 μg/m3
Carbon Monoxide: 310.36 μg/m3
Nitrogen Dioxide: 5.91 μg/m3
Sulphur Dioxide: 3.96 μg/m3
Ozone: 105.76 μg/m3

Astronomical

Sunrise: 6:29 AM
Sun Transit: 1:07 PM
Sunset: 7:46 PM
Daylight: 13 hrs 17 mins
Moonrise: 8:49 AM
Moon Transit: 2:55 PM
Moonset: 8:53 PM
Moon Phase: New
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

3:56 AM - 6:26 AM
2:25 PM - 4:55 PM

Minor Periods

8:23 PM - 9:53 PM
8:19 AM - 9:49 AM

Action Rating: 4 out of 5

Tuesday, August 26, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 69.5°F
Average Humidity: 52%
Chance of Rain: 0%
Wind: 12.5 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 13.41 μg/m3
PM10: 13.62 μg/m3
Carbon Monoxide: 355.48 μg/m3
Nitrogen Dioxide: 14.94 μg/m3
Sulphur Dioxide: 11.41 μg/m3
Ozone: 93.92 μg/m3

Astronomical

Sunrise: 6:30 AM
Sun Transit: 1:07 PM
Sunset: 7:45 PM
Daylight: 13 hrs 15 mins
Moonrise: 9:49 AM
Moon Transit: 3:36 PM
Moonset: 9:14 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.1%

Best Times for Fishing or Hunting

Major Periods

4:37 AM - 7:07 AM
3:06 PM - 5:36 PM

Minor Periods

8:44 PM - 10:14 PM
9:19 AM - 10:49 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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