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 (tomorrow) : in 4h 53m at 12:03 am (0.7 ft)
Next high tide (tomorrow) : 6:24 am (7.6 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 - Jan 2030

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:298.79:147.51:590.22:51-0.67:144:18Waning Crescent1Tue
2Wed9:289.010:127.83:000.03:48-1.07:144:19New Moon2Wed
3Thu10:249.211:078.03:57-0.24:43-1.27:144:20New Moon3Thu
4Fri11:189.211:598.14:52-0.35:35-1.37:144:21New Moon4Fri
5Sat12:109.25:44-0.46:24-1.27:144:22New Moon5Sat
6Sun12:498.11:008.96:35-0.37:12-1.07:144:23Waxing Crescent6Sun
7Mon1:368.01:488.67:25-0.17:58-0.67:144:24Waxing Crescent7Mon
8Tue2:247.92:378.18:160.18:44-0.27:144:25Waxing Crescent8Tue
9Wed3:127.73:287.69:080.49:310.27:134:26First Quarter9Wed
10Thu4:017.54:227.110:020.710:200.77:134:27First Quarter10Thu
11Fri4:517.35:176.710:580.911:101.07:134:28First Quarter11Fri
12Sat5:427.26:156.411:561.07:124:30First Quarter12Sat
13Sun6:367.17:156.312:031.312:561.07:124:31Waxing Gibbous13Sun
14Mon7:317.28:136.31:001.41:550.97:114:32Waxing Gibbous14Mon
15Tue8:247.39:056.41:561.42:470.77:114:33Waxing Gibbous15Tue
16Wed9:127.59:516.62:461.33:320.57:104:34Waxing Gibbous16Wed
17Thu9:567.810:346.83:301.14:130.27:104:36Waxing Gibbous17Thu
18Fri10:378.011:137.14:110.84:51-0.17:094:37Full Moon18Fri
19Sat11:168.211:517.34:510.65:28-0.37:094:38Full Moon19Sat
20Sun11:558.45:310.36:04-0.57:084:39Full Moon20Sun
21Mon12:277.612:338.46:110.16:41-0.67:074:41Waning Gibbous21Mon
22Tue1:047.81:148.46:53-0.17:20-0.67:074:42Waning Gibbous22Tue
23Wed1:438.01:568.37:37-0.28:01-0.67:064:43Waning Gibbous23Wed
24Thu2:258.12:448.08:25-0.28:47-0.47:054:44Waning Gibbous24Thu
25Fri3:128.23:377.79:17-0.29:37-0.27:044:46Third Quarter25Fri
26Sat4:048.24:367.410:15-0.110:320.17:034:47Third Quarter26Sat
27Sun5:018.25:407.111:170.011:320.47:024:48Third Quarter27Sun
28Mon6:048.16:507.012:250.07:014:50Waning Crescent28Mon
29Tue7:128.28:017.012:380.51:36-0.17:004:51Waning Crescent29Tue
30Wed8:198.39:067.31:470.42:42-0.46:594:52Waning Crescent30Wed
31Thu9:218.610:037.52:520.23:40-0.66:584:54Waning Crescent31Thu
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 3:13 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