Tides Today & Tomorrow in Atlantic Heights, NH

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Atlantic Heights, NH.
Next low tide : in 4h 44m at 11:32 am (0.0 ft)
Next high tide : 6:04 pm (7.9 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:03 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8423635
Common Questions About Tides

Atlantic Heights, NH Tides - Nov 2023

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:417.72:458.58:230.59:04-0.37:175:35Waning Gibbous1Wed
2Thu3:317.33:348.19:121.09:560.27:185:34Waning Gibbous2Thu
3Fri4:246.94:297.610:051.310:520.67:205:33Third Quarter3Fri
4Sat5:216.75:277.311:021.611:500.97:215:31Third Quarter4Sat
5Sun5:196.55:277.111:021.811:471.16:224:30Third Quarter5Sun
6Mon6:166.56:267.012:031.86:244:29Third Quarter6Mon
7Tue7:106.77:237.012:431.11:041.66:254:28Waning Crescent7Tue
8Wed8:006.98:167.11:351.01:581.36:264:26Waning Crescent8Wed
9Thu8:447.39:037.22:200.92:451.06:274:25Waning Crescent9Thu
10Fri9:237.69:457.33:000.83:270.66:294:24Waning Crescent10Fri
11Sat9:597.910:267.43:360.74:050.36:304:23New Moon11Sat
12Sun10:338.111:057.44:110.74:430.06:314:22New Moon12Sun
13Mon11:088.311:447.44:470.65:21-0.26:334:21New Moon13Mon
14Tue11:458.45:250.66:00-0.36:344:20New Moon14Tue
15Wed12:247.412:258.56:050.66:42-0.36:354:19Waxing Crescent15Wed
16Thu1:067.31:088.56:480.77:28-0.36:364:18Waxing Crescent16Thu
17Fri1:527.21:558.47:350.88:18-0.26:384:17Waxing Crescent17Fri
18Sat2:437.12:498.28:270.99:130.06:394:17Waxing Crescent18Sat
19Sun3:427.03:508.09:261.010:130.16:404:16First Quarter19Sun
20Mon4:447.14:567.910:311.011:140.16:414:15First Quarter20Mon
21Tue5:487.36:047.811:390.86:434:14First Quarter21Tue
22Wed6:507.67:127.812:160.112:480.66:444:14Waxing Gibbous22Wed
23Thu7:498.08:167.81:180.11:540.16:454:13Waxing Gibbous23Thu
24Fri8:438.49:157.92:150.02:53-0.36:464:12Waxing Gibbous24Fri
25Sat9:338.710:088.03:080.03:46-0.76:474:12Full Moon25Sat
26Sun10:218.911:007.93:570.04:36-0.96:494:11Full Moon26Sun
27Mon11:078.911:497.84:440.15:25-0.96:504:11Full Moon27Mon
28Tue11:538.85:300.36:11-0.86:514:10Full Moon28Tue
29Wed12:357.612:378.66:150.56:56-0.56:524:10Waning Gibbous29Wed
30Thu1:217.41:228.37:000.87:42-0.26:534:09Waning Gibbous30Thu
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 2:48 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 neap phase. Tonight's moon is 48% 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 (48% 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