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 5h 41m 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 2023

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:137.87:497.012:410.51:280.37:144:18Waxing Gibbous1Sun
2Mon8:097.98:486.91:400.82:280.27:144:19Waxing Gibbous2Mon
3Tue9:007.99:416.92:350.93:210.17:144:20Waxing Gibbous3Tue
4Wed9:477.910:296.93:241.04:090.07:144:21Waxing Gibbous4Wed
5Thu10:318.011:126.94:091.04:52-0.17:144:22Full Moon5Thu
6Fri11:138.011:536.94:511.05:320.07:144:23Full Moon6Fri
7Sat11:528.05:300.96:090.07:144:24Full Moon7Sat
8Sun12:306.912:297.96:070.96:450.17:144:25Full Moon8Sun
9Mon1:066.91:057.86:431.07:190.17:134:26Waning Gibbous9Mon
10Tue1:426.91:417.77:201.07:530.27:134:27Waning Gibbous10Tue
11Wed2:176.92:187.57:581.08:290.37:134:28Waning Gibbous11Wed
12Thu2:546.92:587.38:401.19:070.57:124:29Waning Gibbous12Thu
13Fri3:337.03:437.09:261.19:480.67:124:30Third Quarter13Fri
14Sat4:157.14:336.810:151.010:330.87:124:32Third Quarter14Sat
15Sun5:017.25:276.611:080.911:230.97:114:33Third Quarter15Sun
16Mon5:517.46:276.512:060.77:114:34Third Quarter16Mon
17Tue6:477.67:316.612:180.91:090.47:104:35Waning Crescent17Tue
18Wed7:468.08:346.81:170.92:110.07:094:36Waning Crescent18Wed
19Thu8:468.49:337.12:180.63:10-0.47:094:38Waning Crescent19Thu
20Fri9:438.810:297.53:160.34:06-0.97:084:39New Moon20Fri
21Sat10:399.211:247.84:12-0.15:00-1.27:084:40New Moon21Sat
22Sun11:349.45:07-0.45:52-1.47:074:41New Moon22Sun
23Mon12:178.112:289.56:02-0.66:43-1.57:064:43Waxing Crescent23Mon
24Tue1:088.31:219.36:56-0.77:34-1.37:054:44Waxing Crescent24Tue
25Wed1:598.42:158.97:51-0.68:24-1.07:044:45Waxing Crescent25Wed
26Thu2:528.33:118.48:48-0.49:17-0.67:044:47Waxing Crescent26Thu
27Fri3:468.24:107.89:47-0.110:110.07:034:48First Quarter27Fri
28Sat4:418.05:127.210:490.111:070.57:024:49First Quarter28Sat
29Sun5:387.76:166.811:530.47:014:51First Quarter29Sun
30Mon6:377.57:216.512:060.912:590.57:004:52Waxing Gibbous30Mon
31Tue7:377.48:246.41:081.22:030.56:594:53Waxing Gibbous31Tue
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