Tides Today & Tomorrow in Atlantic Heights, NH

TIDE TIMES for Monday, August 17, 2026
The tide is currently rising in Atlantic Heights, NH.
Next low tide : 10:02 pm (0.3 ft)
Next high tide : in 6h 24m at 3:56 pm (8.1 ft)
Sunset today : 7:42 pm
Sunrise tomorrow : 5:51 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8423635
Common Questions About Tides

Atlantic Heights, NH Tides - Jan 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:367.46:007.111:410.77:144:18First Quarter1Wed
2Thu6:307.87:037.112:000.512:420.47:144:19Waxing Gibbous2Thu
3Fri7:268.18:067.212:570.41:45-0.17:144:20Waxing Gibbous3Fri
4Sat8:248.59:077.51:560.32:45-0.57:144:20Waxing Gibbous4Sat
5Sun9:208.910:057.72:540.13:42-1.07:144:21Full Moon5Sun
6Mon10:169.311:017.93:49-0.24:37-1.37:144:22Full Moon6Mon
7Tue11:119.511:568.14:45-0.35:31-1.57:144:23Full Moon7Tue
8Wed12:069.55:40-0.46:25-1.57:144:24Full Moon8Wed
9Thu12:508.11:009.36:34-0.47:17-1.37:144:25Waning Gibbous9Thu
10Fri1:438.11:559.07:29-0.38:10-1.07:134:27Waning Gibbous10Fri
11Sat2:368.02:508.58:25-0.19:03-0.67:134:28Waning Gibbous11Sat
12Sun3:317.83:488.09:250.29:57-0.27:134:29Third Quarter12Sun
13Mon4:277.74:487.510:260.510:520.37:124:30Third Quarter13Mon
14Tue5:237.55:497.011:280.611:470.77:124:31Third Quarter14Tue
15Wed6:187.46:516.712:310.77:124:32Third Quarter15Wed
16Thu7:147.47:536.512:451.01:340.77:114:33Waning Crescent16Thu
17Fri8:087.48:496.51:421.22:310.67:114:35Waning Crescent17Fri
18Sat8:587.59:396.62:351.23:200.47:104:36Waning Crescent18Sat
19Sun9:447.610:246.73:221.24:050.37:094:37Waning Crescent19Sun
20Mon10:267.711:066.84:041.14:460.17:094:38New Moon20Mon
21Tue11:067.911:446.94:431.05:230.07:084:40New Moon21Tue
22Wed11:448.05:210.95:580.07:074:41New Moon22Wed
23Thu12:217.012:208.05:570.86:32-0.17:074:42New Moon23Thu
24Fri12:557.112:558.06:330.77:05-0.17:064:43Waxing Crescent24Fri
25Sat1:297.11:307.97:100.67:40-0.17:054:45Waxing Crescent25Sat
26Sun2:037.22:087.87:490.68:17-0.17:044:46Waxing Crescent26Sun
27Mon2:407.32:507.68:330.58:570.17:034:47Waxing Crescent27Mon
28Tue3:217.53:387.49:210.59:420.27:024:49First Quarter28Tue
29Wed4:077.64:327.210:140.410:320.47:014:50First Quarter29Wed
30Thu4:597.75:317.011:110.311:270.57:004:51First Quarter30Thu
31Fri5:557.96:376.912:150.26:594:53First Quarter31Fri
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 6:59 pm — 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 transitional phase. Tonight's moon is 27% 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 Crescent (27% 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