Nearby Harbors
43.0900’ N, 70.7633’ W

Atlantic Heights, NH

66°
H -°
L 51°
ESE
5mph
High tide
8:41 pm

Tides Today & Tomorrow in Atlantic Heights, NH

TIDE TIMES for Monday, September 21, 2026
The tide is currently rising in Atlantic Heights, NH.
Next low tide (tomorrow) : 3:03 am (1.1 ft)
Next high tide : in 3h 23m at 8:41 pm (7.1 ft)
Sunset today : 6:42 pm
Sunrise tomorrow : 6:29 am
Moon phase : Waxing Gibbous (75% illuminated)
Tide Station Location : Station #8423635
Common Questions About Tides

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Atlantic Heights, NH Tides - Apr 1878

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:557.511:127.74:360.54:510.55:286:13New Moon1Mon
2Tue11:327.511:447.85:120.35:230.55:266:14New Moon2Tue
3Wed12:077.45:460.15:540.65:256:15New Moon3Wed
4Thu12:147.912:427.36:200.16:250.75:236:16New Moon4Thu
5Fri12:457.91:167.26:530.16:580.85:216:17Waxing Crescent5Fri
6Sat1:177.91:527.07:290.17:350.95:196:18Waxing Crescent6Sat
7Sun1:537.82:326.88:090.28:151.15:186:20Waxing Crescent7Sun
8Mon2:347.73:186.68:550.49:021.25:166:21Waxing Crescent8Mon
9Tue3:237.64:116.59:460.59:561.35:146:22First Quarter9Tue
10Wed4:207.65:116.610:440.510:561.25:136:23First Quarter10Wed
11Thu5:227.66:146.811:450.55:116:24First Quarter11Thu
12Fri6:297.77:177.212:021.112:480.35:096:25Waxing Gibbous12Fri
13Sat7:367.98:177.81:100.71:490.05:076:27Waxing Gibbous13Sat
14Sun8:398.29:118.42:150.12:45-0.45:066:28Waxing Gibbous14Sun
15Mon9:378.510:018.93:13-0.53:37-0.65:046:29Full Moon15Mon
16Tue10:318.710:509.34:07-1.04:26-0.75:036:30Full Moon16Tue
17Wed11:248.711:389.55:00-1.45:15-0.75:016:31Full Moon17Wed
18Thu12:168.65:51-1.56:04-0.54:596:32Full Moon18Thu
19Fri12:279.51:078.36:42-1.46:53-0.24:586:33Waning Gibbous19Fri
20Sat1:169.21:598.07:33-1.17:430.24:566:35Waning Gibbous20Sat
21Sun2:068.82:537.58:26-0.68:360.64:556:36Waning Gibbous21Sun
22Mon3:008.33:517.19:22-0.19:341.14:536:37Third Quarter22Mon
23Tue3:597.84:526.810:220.410:361.44:516:38Third Quarter23Tue
24Wed5:017.45:526.711:230.711:401.54:506:39Third Quarter24Wed
25Thu6:047.16:526.712:230.94:486:40Third Quarter25Thu
26Fri7:067.07:476.912:451.51:211.04:476:42Waning Crescent26Fri
27Sat8:047.08:367.11:461.42:121.04:456:43Waning Crescent27Sat
28Sun8:557.09:187.42:391.12:561.04:446:44Waning Crescent28Sun
29Mon9:417.19:577.63:240.83:350.94:426:45Waning Crescent29Mon
30Tue10:237.110:327.84:050.54:100.94:416:46New Moon30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8423635)

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The US Harbors tide chart design is protected by copyright. It may be printed for personal use only.
Any commercial use, modification, redistribution, or repackaging without written permission is strictly prohibited.

Common Questions About Atlantic Heights, NH Tides

Collapse All
Is this week a spring tide or neap tide in Atlantic Heights, NH?

Atlantic Heights, NH is currently in a transitional phase. Tonight's moon is 75% 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 shifting between spring and neap.

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 Gibbous (75% illuminated). This places Atlantic Heights, NH in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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

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