Tides Today & Tomorrow in Atlantic Heights, NH

TIDE TIMES for Monday, July 20, 2026
The tide is currently falling in Atlantic Heights, NH.
Next low tide : in 2h 01m at 11:32 pm (0.6 ft)
Next high tide (tomorrow) : 5:52 am (7.3 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 5:22 am
Moon phase : First Quarter (42% illuminated)
Tide Station Location : Station #8423635
Common Questions About Tides

Atlantic Heights, NH Tides - Aug 2066

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:457.08:068.41:240.31:340.65:348:04Waxing Gibbous1Sun
2Mon8:547.19:128.72:310.12:400.55:358:03Waxing Gibbous2Mon
3Tue9:587.410:149.03:36-0.33:440.35:368:02Waxing Gibbous3Tue
4Wed10:587.711:139.34:35-0.64:44-0.15:378:00Full Moon4Wed
5Thu11:548.15:31-0.95:41-0.35:387:59Full Moon5Thu
6Fri12:099.412:478.46:23-1.16:37-0.55:397:58Full Moon6Fri
7Sat1:039.31:388.67:13-1.17:30-0.65:407:56Waning Gibbous7Sat
8Sun1:559.12:268.68:01-0.98:22-0.55:417:55Waning Gibbous8Sun
9Mon2:458.73:148.58:48-0.69:14-0.35:437:54Waning Gibbous9Mon
10Tue3:378.34:038.39:36-0.110:080.05:447:52Waning Gibbous10Tue
11Wed4:307.74:548.110:250.411:040.45:457:51Third Quarter11Wed
12Thu5:267.25:467.811:160.85:467:49Third Quarter12Thu
13Fri6:236.86:417.512:010.712:101.25:477:48Third Quarter13Fri
14Sat7:226.57:397.41:010.91:071.55:487:46Third Quarter14Sat
15Sun8:236.48:377.42:041.02:071.65:497:45Waning Crescent15Sun
16Mon9:206.49:317.53:031.03:041.55:507:43Waning Crescent16Mon
17Tue10:116.610:207.63:540.83:551.45:517:42Waning Crescent17Tue
18Wed10:566.811:037.84:390.64:391.25:527:40Waning Crescent18Wed
19Thu11:377.111:448.05:180.45:200.95:537:39New Moon19Thu
20Fri12:157.35:540.35:580.75:557:37New Moon20Fri
21Sat12:228.112:507.56:280.16:360.55:567:36New Moon21Sat
22Sun12:598.11:237.87:010.07:130.35:577:34New Moon22Sun
23Mon1:358.11:577.97:340.07:520.25:587:32Waxing Crescent23Mon
24Tue2:128.02:328.18:100.08:330.15:597:31Waxing Crescent24Tue
25Wed2:527.93:118.28:490.19:170.06:007:29Waxing Crescent25Wed
26Thu3:367.63:558.39:320.310:070.16:017:27First Quarter26Thu
27Fri4:267.44:468.210:210.411:020.26:027:26First Quarter27Fri
28Sat5:237.25:438.211:150.66:037:24First Quarter28Sat
29Sun6:267.06:468.212:030.312:160.76:047:22First Quarter29Sun
30Mon7:347.07:548.31:090.31:220.86:057:21Waxing Gibbous30Mon
31Tue8:447.19:038.52:180.12:310.66:077:19Waxing Gibbous31Tue
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 2:42 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 42% 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 (42% 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