Tides Today & Tomorrow in Annapolis, MD

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Annapolis, MD.
Next low tide : in 2h 08m at 4:16 am (0.9 ft)
Next high tide : 9:35 am (1.4 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 6:22 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8575512
Common Questions About Tides

Annapolis, MD Tides - Jan 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:510.711:410.65:21-0.36:020.07:244:53First Quarter1Wed
2Thu12:550.86:10-0.47:150.07:244:54Waxing Gibbous2Thu
3Fri12:360.51:570.97:01-0.58:260.07:254:55Waxing Gibbous3Fri
4Sat1:320.52:561.07:54-0.69:310.07:254:56Waxing Gibbous4Sat
5Sun2:290.43:541.18:48-0.610:30-0.17:254:57Full Moon5Sun
6Mon3:260.44:491.19:43-0.711:24-0.17:254:58Full Moon6Mon
7Tue4:220.45:441.110:39-0.77:254:59Full Moon7Tue
8Wed5:190.56:361.012:14-0.111:35 AM-0.77:255:00Full Moon8Wed
9Thu6:160.57:260.91:02-0.112:32-0.67:245:01Waning Gibbous9Thu
10Fri7:150.58:140.81:48-0.21:28-0.57:245:02Waning Gibbous10Fri
11Sat8:150.69:000.72:34-0.22:25-0.47:245:03Waning Gibbous11Sat
12Sun9:180.69:440.73:19-0.23:24-0.37:245:04Third Quarter12Sun
13Mon10:210.610:290.64:05-0.34:26-0.27:245:05Third Quarter13Mon
14Tue11:250.611:140.54:51-0.35:30-0.17:235:06Third Quarter14Tue
15Wed12:260.75:38-0.46:370.07:235:07Third Quarter15Wed
16Thu12:020.41:230.76:25-0.47:420.07:235:08Waning Crescent16Thu
17Fri12:510.42:150.77:11-0.48:420.07:225:09Waning Crescent17Fri
18Sat1:410.43:020.87:58-0.59:340.07:225:10Waning Crescent18Sat
19Sun2:300.43:460.88:43-0.510:19-0.17:215:11Waning Crescent19Sun
20Mon3:170.34:270.89:27-0.510:59-0.17:215:12New Moon20Mon
21Tue4:010.45:060.810:10-0.511:36-0.17:205:13New Moon21Tue
22Wed4:430.45:440.810:52-0.57:205:14New Moon22Wed
23Thu5:230.46:210.812:10-0.111:34 AM-0.57:195:15New Moon23Thu
24Fri6:030.46:560.812:44-0.112:15-0.57:195:17Waxing Crescent24Fri
25Sat6:450.47:320.71:18-0.212:57-0.47:185:18Waxing Crescent25Sat
26Sun7:300.58:070.71:53-0.21:42-0.47:175:19Waxing Crescent26Sun
27Mon8:210.58:450.62:30-0.32:32-0.37:165:20Waxing Crescent27Mon
28Tue9:180.59:260.63:09-0.33:29-0.27:165:21First Quarter28Tue
29Wed10:200.610:130.53:52-0.44:36-0.17:155:22First Quarter29Wed
30Thu11:260.711:070.44:40-0.45:49-0.17:145:23First Quarter30Thu
31Fri12:330.85:34-0.57:040.07:135:25First Quarter31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8575512)

Common Questions About Annapolis, MD Tides

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What time does the tide turn (slack tide) in Annapolis, MD today?

Slack tide in Annapolis, MD is approximately 6:55 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Annapolis, MD?

Annapolis, MD is currently in a transitional phase. Tonight's moon is 36% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are Annapolis, MD tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Annapolis, MD?

Tide predictions for Annapolis, MD come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Annapolis, MD?

Tide data for Annapolis, MD is sourced from NOAA Station #8575512. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8575512.

What is the moon phase in Annapolis, MD tonight?

Tonight the moon over Annapolis, MD is First Quarter (36% illuminated). This places Annapolis, MD in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA