Tides Today & Tomorrow in Atlantic Heights, NH

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Atlantic Heights, NH.
Next low tide : in 3m at 12:31 am (0.8 ft)
Next high tide : 6:50 am (6.8 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 5:23 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8423635
Common Questions About Tides

Atlantic Heights, NH Tides - Apr 1986

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:058.34:597.010:28-0.210:430.95:246:08Third Quarter1Tue
2Wed5:137.96:106.811:380.211:541.15:236:10Third Quarter2Wed
3Thu6:267.77:226.912:510.35:216:11Waning Crescent3Thu
4Fri7:397.78:277.11:101.12:000.35:196:12Waning Crescent4Fri
5Sat8:437.89:227.42:190.82:580.15:176:13Waning Crescent5Sat
6Sun9:397.910:107.73:170.53:480.05:166:14Waning Crescent6Sun
7Mon10:288.010:538.04:070.24:310.05:146:15New Moon7Mon
8Tue11:137.911:318.14:530.05:110.15:126:17New Moon8Tue
9Wed11:557.85:34-0.15:470.25:116:18New Moon9Wed
10Thu12:078.112:337.66:13-0.26:210.55:096:19New Moon10Thu
11Fri12:418.11:117.46:49-0.16:550.75:076:20Waxing Crescent11Fri
12Sat1:147.91:487.17:250.17:301.05:056:21Waxing Crescent12Sat
13Sun1:497.72:286.98:030.38:071.35:046:22Waxing Crescent13Sun
14Mon2:267.53:116.68:440.68:491.55:026:24Waxing Crescent14Mon
15Tue3:097.33:596.39:300.89:361.75:006:25First Quarter15Tue
16Wed3:597.14:526.210:211.010:281.94:596:26First Quarter16Wed
17Thu4:537.05:486.211:151.111:251.94:576:27First Quarter17Thu
18Fri5:526.96:456.312:131.14:566:28First Quarter18Fri
19Sat6:537.17:406.712:261.71:100.94:546:29Waxing Gibbous19Sat
20Sun7:517.38:307.21:271.32:020.64:526:31Waxing Gibbous20Sun
21Mon8:457.79:157.82:220.82:500.24:516:32Waxing Gibbous21Mon
22Tue9:358.09:588.43:130.23:34-0.14:496:33Waxing Gibbous22Tue
23Wed10:248.310:418.94:01-0.54:19-0.44:486:34Full Moon23Wed
24Thu11:138.511:269.34:49-1.05:04-0.54:466:35Full Moon24Thu
25Fri12:028.55:38-1.35:51-0.54:456:36Full Moon25Fri
26Sat12:139.512:538.46:28-1.46:39-0.34:436:37Waning Gibbous26Sat
27Sun1:019.42:458.18:19-1.38:31-0.15:427:39Waning Gibbous27Sun
28Mon2:539.23:427.89:14-1.09:260.35:407:40Waning Gibbous28Mon
29Tue3:508.84:447.510:13-0.610:270.75:397:41Third Quarter29Tue
30Wed4:548.45:507.211:18-0.211:341.05:377:42Third Quarter30Wed
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 3:40 am — 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 62% 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 First Quarter (62% 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