Water Temperature of the Severn River in Annapolis, MD

Current Water Temperature

75.0°F

Measurement Time: Tuesday, September 16, 2025, 11:36 AM EDT

Today's Tides

High: September 16, 1:34 AM, 1.77 ft
 Low: September 16, 8:16 AM, 0.94 ft
High: September 16, 12:58 PM, 1.24 ft
 Low: September 16, 7:13 PM, 0.44 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

69.1°F
Partly cloudy
Conditions: Partly cloudy
Humidity: 75%
Feels Like: 69.1°F
Wind: NE 18.6 mph
Wind Gusts: 25 mph
Pressure: 30.18 in
Precipitation: 0 in
Cloud Cover: 75%
Visibility: 9 mi
UV Index: 0.8

Five Day Weather Forecast

Patchy rain nearby
Tue
H: 69°F
L: 62°F
Patchy rain nearby
Wed
H: 64°F
L: 63°F
Partly Cloudy
Thu
H: 78°F
L: 65°F
Sunny
Fri
H: 81°F
L: 67°F
Sunny
Sat
H: 75°F
L: 63°F

Air Quality

AQI: 2 - Moderate
PM2.5: 9.81 μg/m3
PM10: 11.84 μg/m3
Carbon Monoxide: 333 μg/m3
Nitrogen Dioxide: 4.63 μg/m3
Sulphur Dioxide: 2.22 μg/m3
Ozone: 99 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 1:00 PM
Sunset: 7:12 PM
Daylight: 12 hrs 23 mins
Moonrise: 1:01 AM
Moon Transit: 8:55 AM
Moonset: 4:43 PM
Moon Phase: Last Quarter
Moon Illumination: 23.8%

Best Times for Fishing or Hunting

Major Periods

8:25 AM - 10:55 AM
12:00 AM - 12:00 AM

Minor Periods

4:13 PM - 5:43 PM
12:31 AM - 2:01 AM

Action Rating: 2 out of 5

This is only a test for monitoring of vital dissemination systems.

Effective: Tue September 16, 2025, 8:21 AM
Expires: Tue September 16, 2025, 8:31 AM

Monitoring message only. Please disregard.

Monitoring message only. Please disregard.


Coastal Flood Advisory issued September 16 at 4:58AM EDT until September 16 at 9:00PM EDT by NWS Mount Holly NJ

Effective: Tue September 16, 2025, 4:58 AM
Expires: Tue September 16, 2025, 6:00 PM

* WHAT...Up to one foot of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE...Kent and Inland Sussex. * WHEN...From 3 PM this afternoon to 9 PM EDT this evening. * IMPACTS...At this level, flooding begins on the most vulnerable roads in coastal and bayside communities, and along inland 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 National Water Prediction Service at https://water.noaa.gov/wfo/phi for additional water level and flood impact information for your local tide gauge.


Coastal Flood Advisory issued September 16 at 2:05AM EDT until September 16 at 4:00PM EDT by NWS Wakefield VA

Effective: Tue September 16, 2025, 2:05 AM
Expires: Tue September 16, 2025, 10:15 AM

* WHAT...For the Coastal Flood Advisory, up to one foot of inundation above ground level in low-lying areas near shorelines and tidal waterways. For the Coastal Flood Warning, one to two feet of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE...Westmoreland, Richmond, Northumberland, Lancaster, Middlesex, Western Essex and Eastern Essex Counties. * WHEN...For the Coastal Flood Advisory, until 4 PM EDT this afternoon. For the Coastal Flood Warning, from 4 PM this afternoon to 2 AM EDT Wednesday. * IMPACTS...Widespread flooding of vulnerable areas will result in an elevated threat of property damage to homes and businesses near the waterfront and shoreline. Water will be 1 to 2 feet above ground level in some areas resulting in a sufficient depth to close numerous roads and threaten homes and businesses. Flooding will extend inland from the waterfront along tidal rivers and bays resulting in some road closures and flooding of vehicles.

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 September 16 at 6:23AM EDT until September 17 at 2:00AM EDT by NWS Wakefield VA

Effective: Tue September 16, 2025, 6:23 AM
Expires: Tue September 16, 2025, 2:30 PM

* WHAT...For the Coastal Flood Advisory, up to one foot of inundation above ground level in low-lying areas near shorelines and tidal waterways. For the Coastal Flood Warning, one to two feet of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE...Westmoreland, Richmond, Northumberland, Lancaster, Middlesex, Western Essex and Eastern Essex Counties. * WHEN...For the Coastal Flood Advisory, until 4 PM EDT this afternoon. For the Coastal Flood Warning, from 4 PM this afternoon to 2 AM EDT Wednesday. * IMPACTS...Widespread flooding of vulnerable areas will result in an elevated threat of property damage to homes and businesses near the waterfront and shoreline. Water will be 1 to 2 feet above ground level in some areas resulting in a sufficient depth to close numerous roads and threaten homes and businesses. Flooding will extend inland from the waterfront along tidal rivers and bays resulting in some road closures and flooding of vehicles.

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 September 16 at 6:23AM EDT until September 16 at 4:00PM EDT by NWS Wakefield VA

Effective: Tue September 16, 2025, 6:23 AM
Expires: Tue September 16, 2025, 2:30 PM

* WHAT...For the Coastal Flood Advisory, up to one foot of inundation above ground level in low-lying areas near shorelines and tidal waterways. For the Coastal Flood Warning, one to two feet of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE...Westmoreland, Richmond, Northumberland, Lancaster, Middlesex, Western Essex and Eastern Essex Counties. * WHEN...For the Coastal Flood Advisory, until 4 PM EDT this afternoon. For the Coastal Flood Warning, from 4 PM this afternoon to 2 AM EDT Wednesday. * IMPACTS...Widespread flooding of vulnerable areas will result in an elevated threat of property damage to homes and businesses near the waterfront and shoreline. Water will be 1 to 2 feet above ground level in some areas resulting in a sufficient depth to close numerous roads and threaten homes and businesses. Flooding will extend inland from the waterfront along tidal rivers and bays resulting in some road closures and flooding of vehicles.

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


Tuesday, September 16, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 65.9°F
Average Humidity: 79%
Chance of Rain: 67%
Wind: 21.5 mph
UV Index: 0.4

Air Quality

AQI: 1 - Good
PM2.5: 10.23 μg/m3
PM10: 11.97 μg/m3
Carbon Monoxide: 356.16 μg/m3
Nitrogen Dioxide: 8.24 μg/m3
Sulphur Dioxide: 2.76 μg/m3
Ozone: 94.44 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 1:00 PM
Sunset: 7:12 PM
Daylight: 12 hrs 23 mins
Moonrise: 1:01 AM
Moon Transit: 8:55 AM
Moonset: 4:43 PM
Moon Phase: Last Quarter
Moon Illumination: 23.8%

Best Times for Fishing or Hunting

Major Periods

8:25 AM - 10:55 AM
12:00 AM - 12:00 AM

Minor Periods

4:13 PM - 5:43 PM
12:31 AM - 2:01 AM

Action Rating: 2 out of 5

Wednesday, September 17, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 64.2°F
Average Humidity: 89%
Chance of Rain: 85%
Wind: 18.1 mph
UV Index: 0.5

Air Quality

AQI: 1 - Good
PM2.5: 5.83 μg/m3
PM10: 7.46 μg/m3
Carbon Monoxide: 355.2 μg/m3
Nitrogen Dioxide: 8.01 μg/m3
Sulphur Dioxide: 2.13 μg/m3
Ozone: 80.32 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 1:00 PM
Sunset: 7:10 PM
Daylight: 12 hrs 21 mins
Moonrise: 2:11 AM
Moon Transit: 9:50 AM
Moonset: 5:19 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:20 AM - 11:50 AM

Minor Periods

4:49 PM - 6:19 PM
1:41 AM - 3:11 AM

Action Rating: 2 out of 5

Thursday, September 18, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 69.6°F
Average Humidity: 75%
Chance of Rain: 0%
Wind: 13.2 mph
UV Index: 1.4

Air Quality

AQI: 1 - Good
PM2.5: 14.44 μg/m3
PM10: 15.73 μg/m3
Carbon Monoxide: 382.88 μg/m3
Nitrogen Dioxide: 21.19 μg/m3
Sulphur Dioxide: 7.42 μg/m3
Ozone: 71.44 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 1:00 PM
Sunset: 7:09 PM
Daylight: 12 hrs 18 mins
Moonrise: 3:21 AM
Moon Transit: 10:41 AM
Moonset: 5:49 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:11 AM - 12:41 AM

Minor Periods

5:19 PM - 6:49 PM
2:51 AM - 4:21 AM

Action Rating: 3 out of 5

Friday, September 19, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 73.9°F
Average Humidity: 62%
Chance of Rain: 0%
Wind: 10.3 mph
UV Index: 1.5

Air Quality

AQI: 2 - Moderate
PM2.5: 30.62 μg/m3
PM10: 30.93 μg/m3
Carbon Monoxide: 443.78 μg/m3
Nitrogen Dioxide: 31.48 μg/m3
Sulphur Dioxide: 7.96 μg/m3
Ozone: 105.12 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 1:00 PM
Sunset: 7:07 PM
Daylight: 12 hrs 16 mins
Moonrise: 4:30 AM
Moon Transit: 11:27 AM
Moonset: 6:14 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

12:26 AM - 2:56 AM
10:57 AM - 1:27 PM

Minor Periods

5:44 PM - 7:14 PM
4:00 AM - 5:30 AM

Action Rating: 3 out of 5

Saturday, September 20, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 68.3°F
Average Humidity: 53%
Chance of Rain: 0%
Wind: 15.7 mph
UV Index: 0

Air Quality

AQI: 2 - Moderate
PM2.5: 30.8 μg/m3
PM10: 31.05 μg/m3
Carbon Monoxide: 581.75 μg/m3
Nitrogen Dioxide: 26.6 μg/m3
Sulphur Dioxide: 7.67 μg/m3
Ozone: 101.31 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 1:00 PM
Sunset: 7:06 PM
Daylight: 12 hrs 13 mins
Moonrise: 5:34 AM
Moon Transit: 12:10 AM
Moonset: 6:37 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

1:10 AM - 3:40 AM
11:40 AM - 2:10 PM

Minor Periods

6:07 PM - 7:37 PM
5:04 AM - 6:34 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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