Tides Today & Tomorrow in Atlantic Heights, NH

TIDE TIMES for Friday, July 17, 2026
The tide is currently falling in Atlantic Heights, NH.
Next low tide : in 5h 30m at 8:26 am (-0.9 ft)
Next high tide : 2:52 pm (8.2 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:19 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #8423635
Common Questions About Tides

Atlantic Heights, NH Tides - Feb 1989

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:517.17:436.012:181.61:171.06:574:55Waning Crescent1Wed
2Thu7:517.38:416.31:191.52:170.76:564:56Waning Crescent2Thu
3Fri8:477.79:336.62:171.23:100.26:554:58Waning Crescent3Fri
4Sat9:398.210:217.13:110.83:59-0.36:544:59New Moon4Sat
5Sun10:298.711:087.64:020.34:45-0.76:535:00New Moon5Sun
6Mon11:189.011:538.14:52-0.25:31-1.16:525:02New Moon6Mon
7Tue12:069.25:41-0.66:16-1.36:505:03New Moon7Tue
8Wed12:398.512:559.26:31-0.97:01-1.36:495:04Waxing Crescent8Wed
9Thu1:258.71:448.97:22-1.07:47-1.16:485:06Waxing Crescent9Thu
10Fri2:128.82:378.58:14-0.98:36-0.76:475:07Waxing Crescent10Fri
11Sat3:028.73:347.99:10-0.79:29-0.26:455:08First Quarter11Sat
12Sun3:578.44:367.410:11-0.410:260.36:445:10First Quarter12Sun
13Mon4:578.15:426.911:160.011:280.86:435:11First Quarter13Mon
14Tue6:017.86:536.612:260.26:415:12First Quarter14Tue
15Wed7:117.78:036.612:371.11:380.36:405:14Waxing Gibbous15Wed
16Thu8:187.79:066.71:481.12:430.26:385:15Waxing Gibbous16Thu
17Fri9:177.89:596.92:511.03:380.16:375:16Waxing Gibbous17Fri
18Sat10:097.910:457.13:450.84:260.06:355:18Full Moon18Sat
19Sun10:548.011:267.34:320.65:07-0.16:345:19Full Moon19Sun
20Mon11:358.05:140.45:44-0.16:325:20Full Moon20Mon
21Tue12:037.412:137.95:520.46:170.06:315:21Full Moon21Tue
22Wed12:377.512:487.76:280.36:480.16:295:23Waning Gibbous22Wed
23Thu1:097.51:237.57:030.37:190.36:285:24Waning Gibbous23Thu
24Fri1:407.51:587.37:380.47:510.56:265:25Waning Gibbous24Fri
25Sat2:127.52:356.98:150.58:260.86:255:27Waning Gibbous25Sat
26Sun2:477.33:166.68:560.79:051.16:235:28Waning Gibbous26Sun
27Mon3:277.24:036.39:410.89:491.36:215:29Third Quarter27Mon
28Tue4:147.14:566.110:321.010:401.56:205:30Third Quarter28Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8423635)

Common Questions About Atlantic Heights, NH Tides

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What time does the tide turn (slack tide) in Atlantic Heights, NH today?

Slack tide in Atlantic Heights, NH is approximately 11:39 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 Atlantic Heights, NH?

Atlantic Heights, NH is currently in a spring phase. Tonight's moon is 14% 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 near their weekly maximum.

What datum are Atlantic Heights, NH 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 Atlantic Heights, NH?

Tide predictions for Atlantic Heights, NH 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 Atlantic Heights, NH?

Tide data for Atlantic Heights, NH is sourced from NOAA Station #8423635. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8423635.

What is the moon phase in Atlantic Heights, NH tonight?

Tonight the moon over Atlantic Heights, NH is Waxing Crescent (14% illuminated). This places Atlantic Heights, NH in a spring tide cycle, so tidal ranges are near their weekly maximum 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