Tides Today & Tomorrow in Atlantic Heights, NH

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Atlantic Heights, NH.
Next low tide : in 2h 48m at 11:32 am (0.0 ft)
Next high tide : 6:04 pm (7.9 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:03 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8423635
Common Questions About Tides

Atlantic Heights, NH Tides - Apr 2029

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:359.62:118.77:46-1.78:01-0.86:237:09Waning Gibbous1Sun
2Mon2:249.53:048.48:38-1.48:53-0.46:227:10Waning Gibbous2Mon
3Tue3:179.14:017.99:34-1.09:480.16:207:11Waning Gibbous3Tue
4Wed4:148.65:037.510:33-0.510:490.66:187:13Third Quarter4Wed
5Thu5:178.16:087.111:370.011:550.96:167:14Third Quarter5Thu
6Fri6:237.77:146.912:440.36:157:15Third Quarter6Fri
7Sat7:317.58:186.91:041.11:510.66:137:16Third Quarter7Sat
8Sun8:377.39:177.12:131.12:520.66:117:17Waning Crescent8Sun
9Mon9:367.410:077.33:150.93:450.66:107:18Waning Crescent9Mon
10Tue10:277.410:517.64:080.74:300.56:087:20Waning Crescent10Tue
11Wed11:127.411:307.74:540.55:100.56:067:21Waning Crescent11Wed
12Thu11:537.55:340.35:450.66:057:22New Moon12Thu
13Fri12:057.912:317.46:110.16:190.66:037:23New Moon13Fri
14Sat12:397.91:087.46:460.16:510.76:017:24New Moon14Sat
15Sun1:128.01:437.37:200.17:240.86:007:25New Moon15Sun
16Mon1:447.92:187.17:540.17:580.95:587:27Waxing Crescent16Mon
17Tue2:177.92:547.08:300.28:341.15:567:28Waxing Crescent17Tue
18Wed2:537.83:336.89:090.39:141.25:557:29Waxing Crescent18Wed
19Thu3:347.74:176.79:520.410:001.35:537:30Waxing Crescent19Thu
20Fri4:217.65:076.710:410.510:521.35:527:31First Quarter20Fri
21Sat5:147.56:026.811:340.511:491.25:507:32First Quarter21Sat
22Sun6:127.56:597.012:300.55:487:34First Quarter22Sun
23Mon7:157.67:587.412:511.01:280.35:477:35Waxing Gibbous23Mon
24Tue8:197.88:558.01:550.62:270.15:457:36Waxing Gibbous24Tue
25Wed9:218.09:498.52:580.13:23-0.25:447:37Waxing Gibbous25Wed
26Thu10:198.310:419.13:56-0.54:16-0.55:427:38Waxing Gibbous26Thu
27Fri11:158.511:319.54:51-1.15:07-0.65:417:39Full Moon27Fri
28Sat12:098.65:44-1.45:58-0.75:397:41Full Moon28Sat
29Sun12:229.71:038.66:37-1.66:50-0.65:387:42Full Moon29Sun
30Mon1:139.71:568.57:30-1.57:41-0.45:377:43Waning Gibbous30Mon
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 2:48 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 Atlantic Heights, NH?

Atlantic Heights, NH is currently in a neap phase. Tonight's moon is 48% 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 minimum.

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 First Quarter (48% illuminated). This places Atlantic Heights, NH in a neap tide cycle, so tidal ranges are near their weekly minimum 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