Tides Today & Tomorrow in Atlantic Heights, NH

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Atlantic Heights, NH.
Next low tide : 11:32 am (0.0 ft)
Next high tide : in 5h 13m at 5:23 am (8.0 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 - Sep 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:567.111:077.94:370.44:450.96:087:17Waxing Gibbous1Fri
2Sat11:387.311:498.05:200.35:280.76:097:15Full Moon2Sat
3Sun12:177.55:580.36:080.66:107:13Full Moon3Sun
4Mon12:287.912:527.66:320.36:440.56:117:12Full Moon4Mon
5Tue1:057.81:247.77:030.47:190.56:127:10Full Moon5Tue
6Wed1:407.71:567.77:340.57:540.56:137:08Waning Gibbous6Wed
7Thu2:147.52:277.78:060.78:290.56:147:06Waning Gibbous7Thu
8Fri2:507.33:007.68:390.89:070.66:157:05Waning Gibbous8Fri
9Sat3:287.03:387.69:161.09:500.76:167:03Waning Gibbous9Sat
10Sun4:106.84:217.59:581.210:370.96:187:01Third Quarter10Sun
11Mon4:596.65:117.510:461.311:310.96:196:59Third Quarter11Mon
12Tue5:536.46:087.511:401.46:206:57Third Quarter12Tue
13Wed6:546.57:097.712:290.912:391.36:216:56Third Quarter13Wed
14Thu7:576.78:147.91:320.71:431.16:226:54Waning Crescent14Thu
15Fri8:597.19:178.32:350.42:480.76:236:52Waning Crescent15Fri
16Sat9:567.710:148.73:32-0.13:480.16:246:50Waning Crescent16Sat
17Sun10:478.311:099.04:25-0.54:43-0.56:256:48New Moon17Sun
18Mon11:378.85:14-0.95:37-1.06:266:47New Moon18Mon
19Tue12:029.212:269.26:03-1.06:29-1.36:276:45New Moon19Tue
20Wed12:549.21:159.56:52-1.07:22-1.46:286:43Waxing Crescent20Wed
21Thu1:469.02:049.47:41-0.88:14-1.36:306:41Waxing Crescent21Thu
22Fri2:398.62:559.28:31-0.59:08-0.96:316:39Waxing Crescent22Fri
23Sat3:348.13:498.89:230.010:06-0.56:326:38Waxing Crescent23Sat
24Sun4:337.64:488.410:200.511:080.06:336:36First Quarter24Sun
25Mon5:367.25:527.911:220.96:346:34First Quarter25Mon
26Tue6:416.96:577.712:130.412:271.26:356:32First Quarter26Tue
27Wed7:456.88:027.51:190.71:341.36:366:30Waxing Gibbous27Wed
28Thu8:466.99:027.52:230.72:381.26:376:29Waxing Gibbous28Thu
29Fri9:407.19:557.63:190.73:341.16:386:27Waxing Gibbous29Fri
30Sat10:257.310:417.64:060.64:220.86:406:25Waxing Gibbous30Sat
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 8:27 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 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