Nearby Harbors
43.0900’ N, 70.7633’ W

Atlantic Heights, NH

48°
H -°
L 37°
S
4mph
Low tide
12:20 am

Tides Today & Tomorrow in Atlantic Heights, NH

TIDE TIMES for Sunday, October 18, 2026
The tide is currently falling in Atlantic Heights, NH.
Next low tide (tomorrow) : in 5h 23m at 12:20 am (1.3 ft)
Next high tide (tomorrow) : 6:50 am (6.3 ft)
Sunset today : 5:55 pm
Sunrise tomorrow : 7:00 am
Moon phase : First Quarter (50% illuminated)
Tide Station Location : Station #8423635
Common Questions About Tides

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Atlantic Heights, NH Tides - Jan 1830

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:018.04:218.19:590.010:27-0.47:194:22First Quarter1Fri
2Sat5:008.15:247.811:010.111:26-0.27:194:23First Quarter2Sat
3Sun6:008.16:317.612:070.07:194:24First Quarter3Sun
4Mon7:028.37:397.512:280.01:15-0.17:194:25Waxing Gibbous4Mon
5Tue8:048.48:437.51:320.12:20-0.47:194:26Waxing Gibbous5Tue
6Wed9:028.69:417.72:330.13:19-0.67:184:27Waxing Gibbous6Wed
7Thu9:558.710:347.83:290.04:12-0.87:184:28Full Moon7Thu
8Fri10:468.811:247.84:200.05:01-0.97:184:29Full Moon8Fri
9Sat11:338.85:090.05:48-0.87:184:30Full Moon9Sat
10Sun12:117.812:198.65:550.06:31-0.77:184:31Full Moon10Sun
11Mon12:547.71:018.46:390.27:13-0.57:174:32Waning Gibbous11Mon
12Tue1:367.61:438.17:220.37:53-0.27:174:33Waning Gibbous12Tue
13Wed2:177.42:267.88:050.68:330.17:174:35Waning Gibbous13Wed
14Thu3:007.33:107.48:500.89:150.47:164:36Waning Gibbous14Thu
15Fri3:447.23:587.09:381.09:590.77:164:37Third Quarter15Fri
16Sat4:307.14:496.710:281.110:460.97:154:38Third Quarter16Sat
17Sun5:197.05:436.511:221.211:351.17:154:39Third Quarter17Sun
18Mon6:097.06:416.412:181.27:144:41Third Quarter18Mon
19Tue7:027.17:396.412:281.21:171.07:134:42Waning Crescent19Tue
20Wed7:557.38:346.51:231.22:120.77:134:43Waning Crescent20Wed
21Thu8:457.69:246.82:161.03:010.37:124:44Waning Crescent21Thu
22Fri9:328.010:097.23:050.73:46-0.17:114:46Waning Crescent22Fri
23Sat10:178.410:547.53:510.44:30-0.57:114:47New Moon23Sat
24Sun11:028.711:387.84:360.05:14-0.97:104:48New Moon24Sun
25Mon11:479.05:23-0.35:58-1.17:094:49New Moon25Mon
26Tue12:228.112:349.16:10-0.66:43-1.37:084:51Waxing Crescent26Tue
27Wed1:088.41:219.16:59-0.77:30-1.37:074:52Waxing Crescent27Wed
28Thu1:558.52:128.97:49-0.78:19-1.17:064:53Waxing Crescent28Thu
29Fri2:458.53:068.58:44-0.69:11-0.87:054:55Waxing Crescent29Fri
30Sat3:398.44:068.19:42-0.510:07-0.47:044:56First Quarter30Sat
31Sun4:388.35:107.710:45-0.311:06-0.17:034:57First Quarter31Sun
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 neap phase. Tonight's moon is 50% 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 (50% 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

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