Nearby Harbors
43.0900’ N, 70.7633’ W

Atlantic Heights, NH

56°
H -°
L 51°
NNE
2mph
Low tide
3:03 am

Tides Today & Tomorrow in Atlantic Heights, NH

TIDE TIMES for Monday, September 21, 2026
The tide is currently falling in Atlantic Heights, NH.
Next low tide (tomorrow) : in 5h 46m at 3:03 am (1.1 ft)
Next high tide (tomorrow) : 9:24 am (6.5 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 - Nov 1877

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:357.87:598.01:050.11:340.46:224:39Waning Crescent1Thu
2Fri8:328.38:598.22:040.02:36-0.26:234:37Waning Crescent2Fri
3Sat9:238.79:548.32:58-0.23:31-0.66:244:36New Moon3Sat
4Sun10:119.010:468.33:47-0.34:23-0.96:264:35New Moon4Sun
5Mon10:589.211:378.24:35-0.25:13-1.16:274:34New Moon5Mon
6Tue11:459.15:220.06:01-1.06:284:32New Moon6Tue
7Wed12:268.012:318.96:090.26:49-0.76:304:31Waxing Crescent7Wed
8Thu1:147.71:178.66:550.57:36-0.46:314:30Waxing Crescent8Thu
9Fri2:027.42:058.27:430.98:260.06:324:29Waxing Crescent9Fri
10Sat2:537.02:567.88:331.29:180.46:334:28Waxing Crescent10Sat
11Sun3:466.83:517.49:271.510:120.86:354:27First Quarter11Sun
12Mon4:426.64:487.110:241.611:061.06:364:26First Quarter12Mon
13Tue5:366.65:456.911:231.711:591.16:374:25First Quarter13Tue
14Wed6:296.76:426.812:231.66:394:24First Quarter14Wed
15Thu7:206.97:386.812:511.21:201.46:404:23Waxing Gibbous15Thu
16Fri8:067.28:296.91:391.12:121.16:414:22Waxing Gibbous16Fri
17Sat8:487.59:157.02:231.12:570.76:424:21Waxing Gibbous17Sat
18Sun9:277.89:577.13:021.03:370.46:444:20Waxing Gibbous18Sun
19Mon10:038.010:387.23:400.94:170.16:454:20Full Moon19Mon
20Tue10:418.211:197.24:180.84:56-0.16:464:19Full Moon20Tue
21Wed11:198.44:570.75:37-0.36:474:18Full Moon21Wed
22Thu12:007.312:008.55:390.76:19-0.46:494:17Full Moon22Thu
23Fri12:437.312:458.66:230.67:05-0.46:504:17Waning Gibbous23Fri
24Sat1:287.31:328.57:100.67:53-0.36:514:16Waning Gibbous24Sat
25Sun2:187.22:248.48:010.78:46-0.26:524:16Waning Gibbous25Sun
26Mon3:137.23:228.28:580.79:42-0.16:534:15Third Quarter26Mon
27Tue4:137.34:258.010:010.810:410.06:544:15Third Quarter27Tue
28Wed5:137.55:317.711:070.711:400.16:564:14Third Quarter28Wed
29Thu6:147.76:387.612:140.56:574:14Waning Crescent29Thu
30Fri7:138.07:447.612:410.21:220.26:584:13Waning Crescent30Fri
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.
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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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