Tides Today & Tomorrow in Annapolis, MD

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Annapolis, MD.
Next low tide : 4:03 pm (0.4 ft)
Next high tide : in 3h 44m at 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 - Sep 1946

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:271.410:391.63:570.93:520.56:347:37First Quarter1Sun
2Mon10:081.311:291.64:510.94:310.56:357:36First Quarter2Mon
3Tue10:531.35:511.05:140.56:367:34First Quarter3Tue
4Wed12:211.611:45 AM1.26:541.06:010.56:377:33First Quarter4Wed
5Thu1:141.712:431.27:581.06:530.56:377:31First Quarter5Thu
6Fri2:071.71:431.28:561.07:480.56:387:29Waxing Gibbous6Fri
7Sat2:581.72:421.29:450.98:440.56:397:28Waxing Gibbous7Sat
8Sun3:451.73:381.310:260.99:390.56:407:26Waxing Gibbous8Sun
9Mon4:291.74:301.311:040.810:310.56:417:25Full Moon9Mon
10Tue5:111.85:191.411:410.711:220.56:427:23Full Moon10Tue
11Wed5:501.76:081.512:170.66:437:21Full Moon11Wed
12Thu6:291.76:561.612:120.612:530.66:447:20Full Moon12Thu
13Fri7:071.77:451.61:030.61:300.56:457:18Waning Gibbous13Fri
14Sat7:471.68:361.71:560.72:080.46:457:17Waning Gibbous14Sat
15Sun8:281.59:301.82:520.72:490.46:467:15Waning Gibbous15Sun
16Mon9:121.410:291.83:520.83:340.46:477:13Third Quarter16Mon
17Tue10:021.311:311.84:570.94:240.46:487:12Third Quarter17Tue
18Wed11:021.36:070.95:210.46:497:10Third Quarter18Wed
19Thu12:371.812:091.27:190.96:240.46:507:09Third Quarter19Thu
20Fri1:431.81:201.28:250.97:310.46:517:07Waning Crescent20Fri
21Sat2:451.82:281.39:220.88:380.46:527:05Waning Crescent21Sat
22Sun3:411.83:321.410:100.89:410.56:537:04Waning Crescent22Sun
23Mon4:301.74:311.510:520.710:400.56:547:02New Moon23Mon
24Tue5:121.75:251.511:310.611:340.56:557:01New Moon24Tue
25Wed5:511.66:141.612:080.66:556:59New Moon25Wed
26Thu6:271.67:011.612:240.612:440.56:566:57New Moon26Thu
27Fri7:011.57:461.71:120.71:190.56:576:56Waxing Crescent27Fri
28Sat7:361.48:291.71:580.71:540.46:586:54Waxing Crescent28Sat
29Sun7:121.48:121.71:450.81:290.45:595:53Waxing Crescent29Sun
30Mon7:491.38:561.62:320.92:060.56:005:51Waxing Crescent30Mon
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 12:49 pm — 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