Tides Today & Tomorrow in Atlantic Heights, NH

TIDE TIMES for Sunday, August 23, 2026
The tide is currently falling in Atlantic Heights, NH.
Next low tide : in 2h 47m at 2:53 am (1.2 ft)
Next high tide : 9:12 am (6.2 ft)
Sunset today : 7:33 pm
Sunrise tomorrow : 5:57 am
Moon phase : Waxing Gibbous (81% illuminated)
Tide Station Location : Station #8423635
Common Questions About Tides

Atlantic Heights, NH Tides - Feb 1938

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:027.412:078.15:440.46:12-0.26:584:54New Moon1Tue
2Wed12:357.512:428.16:210.26:45-0.36:574:56Waxing Crescent2Wed
3Thu1:087.71:188.06:580.17:20-0.36:564:57Waxing Crescent3Thu
4Fri1:437.81:577.97:380.07:58-0.26:554:58Waxing Crescent4Fri
5Sat2:207.92:407.78:220.08:40-0.16:545:00Waxing Crescent5Sat
6Sun3:038.03:287.49:100.09:280.16:535:01First Quarter6Sun
7Mon3:528.04:247.210:040.110:200.36:515:02First Quarter7Mon
8Tue4:478.05:267.011:040.111:190.46:505:04First Quarter8Tue
9Wed5:498.06:346.912:090.16:495:05First Quarter9Wed
10Thu6:568.17:457.112:240.51:19-0.16:485:06Waxing Gibbous10Thu
11Fri8:058.48:517.41:330.32:26-0.46:465:08Waxing Gibbous11Fri
12Sat9:088.79:497.82:390.03:25-0.86:455:09Waxing Gibbous12Sat
13Sun10:069.010:438.23:38-0.34:20-1.16:445:10Full Moon13Sun
14Mon11:009.111:348.54:34-0.75:10-1.36:425:12Full Moon14Mon
15Tue11:529.15:27-0.95:58-1.36:415:13Full Moon15Tue
16Wed12:228.612:419.06:17-0.96:44-1.16:395:14Waning Gibbous16Wed
17Thu1:078.61:288.67:05-0.87:28-0.86:385:16Waning Gibbous17Thu
18Fri1:528.52:168.27:53-0.68:13-0.36:365:17Waning Gibbous18Fri
19Sat2:378.23:057.68:42-0.28:590.26:355:18Waning Gibbous19Sat
20Sun3:257.93:577.19:340.29:480.76:335:19Third Quarter20Sun
21Mon4:157.54:526.710:280.610:401.16:325:21Third Quarter21Mon
22Tue5:097.25:506.411:260.911:361.46:305:22Third Quarter22Tue
23Wed6:077.06:526.212:281.06:295:23Third Quarter23Wed
24Thu7:077.07:526.312:371.51:311.06:275:25Waning Crescent24Thu
25Fri8:057.18:466.51:381.42:270.86:265:26Waning Crescent25Fri
26Sat8:577.39:336.72:331.23:130.66:245:27Waning Crescent26Sat
27Sun9:437.510:147.13:200.93:540.36:225:28Waning Crescent27Sun
28Mon10:247.810:527.44:010.64:300.16:215:30New Moon28Mon
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 6:02 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 spring phase. Tonight's moon is 81% 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 maximum.

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 Gibbous (81% illuminated). This places Atlantic Heights, NH in a spring tide cycle, so tidal ranges are near their weekly maximum 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