Tides Today & Tomorrow in Atlantic Heights, NH

TIDE TIMES for Sunday, August 16, 2026
The tide is currently rising in Atlantic Heights, NH.
Next low tide (tomorrow) : 9:31 am (0.1 ft)
Next high tide (tomorrow) : in 4h 46m at 3:32 am (8.0 ft)
Sunset today : 7:44 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waxing Crescent (18% illuminated)
Tide Station Location : Station #8423635
Common Questions About Tides

Atlantic Heights, NH Tides - Sep 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:438.11:127.56:490.16:560.66:067:19Full Moon1Mon
2Tue1:188.11:447.67:210.17:330.46:077:18Waning Gibbous2Tue
3Wed1:548.02:167.87:540.18:110.36:087:16Waning Gibbous3Wed
4Thu2:317.92:517.98:290.28:510.26:097:14Waning Gibbous4Thu
5Fri3:107.73:298.09:080.39:360.26:107:12Waning Gibbous5Fri
6Sat3:557.54:138.19:510.510:260.26:127:11Third Quarter6Sat
7Sun4:467.35:038.110:390.611:210.36:137:09Third Quarter7Sun
8Mon5:437.16:018.111:340.86:147:07Third Quarter8Mon
9Tue6:466.97:048.112:220.312:350.96:157:05Third Quarter9Tue
10Wed7:556.98:138.21:290.31:410.96:167:03Waning Crescent10Wed
11Thu9:037.29:208.52:380.12:490.66:177:02Waning Crescent11Thu
12Fri10:067.510:228.83:42-0.23:530.36:187:00Waning Crescent12Fri
13Sat11:027.911:199.04:39-0.64:52-0.16:196:58New Moon13Sat
14Sun11:548.35:31-0.85:46-0.46:206:56New Moon14Sun
15Mon12:129.112:438.66:20-0.96:39-0.66:216:55New Moon15Mon
16Tue1:049.01:308.77:07-0.87:29-0.76:226:53Waxing Crescent16Tue
17Wed1:538.82:158.77:52-0.58:18-0.56:246:51Waxing Crescent17Wed
18Thu2:428.43:008.58:37-0.19:07-0.36:256:49Waxing Crescent18Thu
19Fri3:317.93:468.29:230.49:580.16:266:47Waxing Crescent19Fri
20Sat4:237.44:367.810:110.910:520.56:276:45First Quarter20Sat
21Sun5:196.95:307.511:041.311:500.86:286:44First Quarter21Sun
22Mon6:176.66:277.212:001.66:296:42First Quarter22Mon
23Tue7:176.47:277.112:501.112:591.86:306:40First Quarter23Tue
24Wed8:176.48:287.11:531.22:021.86:316:38Waxing Gibbous24Wed
25Thu9:136.59:237.32:521.13:001.66:326:36Waxing Gibbous25Thu
26Fri10:026.810:117.53:420.93:491.36:346:35Waxing Gibbous26Fri
27Sat10:457.110:547.74:250.74:331.06:356:33Waxing Gibbous27Sat
28Sun10:237.410:347.94:020.44:120.75:365:31Full Moon28Sun
29Mon10:587.711:128.04:370.34:500.45:375:29Full Moon29Mon
30Tue11:327.911:498.15:100.15:270.15:385:27Full Moon30Tue
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 6:31 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 18% 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 (18% 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