Tides Today & Tomorrow in Atlantic Heights, NH

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in Atlantic Heights, NH.
Next low tide (tomorrow) : in 2h 32m at 12:31 am (0.8 ft)
Next high tide (tomorrow) : 6:50 am (6.8 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 5:22 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8423635
Common Questions About Tides

Atlantic Heights, NH Tides - Apr 2067

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:078.31:357.87:12-0.47:230.16:247:09Full Moon1Fri
2Sat1:438.42:147.77:52-0.58:020.26:227:10Waning Gibbous2Sat
3Sun2:228.52:577.68:35-0.58:450.36:207:11Waning Gibbous3Sun
4Mon3:058.43:457.49:22-0.49:340.46:197:12Waning Gibbous4Mon
5Tue3:558.34:407.210:15-0.210:290.66:177:14Third Quarter5Tue
6Wed4:528.25:417.111:130.011:300.76:157:15Third Quarter6Wed
7Thu5:568.06:477.112:160.16:137:16Third Quarter7Thu
8Fri7:057.97:547.312:360.71:220.16:127:17Third Quarter8Fri
9Sat8:158.08:597.71:470.62:280.06:107:18Waning Crescent9Sat
10Sun9:228.19:568.22:560.23:29-0.26:087:19Waning Crescent10Sun
11Mon10:218.310:488.63:57-0.24:23-0.46:077:21Waning Crescent11Mon
12Tue11:168.411:378.94:52-0.75:13-0.56:057:22New Moon12Tue
13Wed12:078.55:43-0.96:00-0.46:037:23New Moon13Wed
14Thu12:239.012:568.46:32-1.06:45-0.36:027:24New Moon14Thu
15Fri1:079.01:428.17:18-1.07:290.06:007:25Waxing Crescent15Fri
16Sat1:518.82:277.88:03-0.78:120.35:587:26Waxing Crescent16Sat
17Sun2:338.53:137.58:48-0.48:560.75:577:28Waxing Crescent17Sun
18Mon3:188.14:007.19:340.09:431.05:557:29Waxing Crescent18Mon
19Tue4:057.74:516.810:230.410:331.35:537:30First Quarter19Tue
20Wed4:577.45:446.611:150.711:271.65:527:31First Quarter20Wed
21Thu5:527.16:396.612:081.05:507:32First Quarter21Thu
22Fri6:496.97:346.612:251.71:031.15:497:33First Quarter22Fri
23Sat7:486.88:276.81:241.61:581.15:477:35Waxing Gibbous23Sat
24Sun8:446.99:167.12:231.42:491.15:467:36Waxing Gibbous24Sun
25Mon9:367.010:007.43:161.13:340.95:447:37Waxing Gibbous25Mon
26Tue10:237.210:397.84:030.74:150.75:437:38Waxing Gibbous26Tue
27Wed11:067.411:178.14:450.34:530.65:417:39Full Moon27Wed
28Thu11:487.611:558.45:250.05:330.45:407:40Full Moon28Thu
29Fri12:307.76:06-0.46:130.35:387:41Full Moon29Fri
30Sat12:358.71:127.86:48-0.66:560.25:377:43Full Moon30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8423635)

Common Questions About Atlantic Heights, NH Tides

Show All
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 neap phase. Tonight's moon is 52% 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 (52% 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