Tides Today & Tomorrow in Atlantic Heights, NH

TIDE TIMES for Friday, July 17, 2026
The tide is currently falling in Atlantic Heights, NH.
Next low tide : in 1h 09m at 8:26 am (-0.9 ft)
Next high tide : 2:52 pm (8.2 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:19 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #8423635
Common Questions About Tides

Atlantic Heights, NH Tides - Nov 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:076.75:177.310:511.611:380.96:184:34Third Quarter1Tue
2Wed6:066.66:187.111:551.66:194:33Third Quarter2Wed
3Thu7:026.87:177.012:351.012:571.56:204:32Waning Crescent3Thu
4Fri7:537.08:117.01:291.01:531.36:224:31Waning Crescent4Fri
5Sat8:397.28:597.12:161.02:421.06:234:29Waning Crescent5Sat
6Sun9:197.59:427.22:570.93:250.76:244:28Waning Crescent6Sun
7Mon9:557.710:237.23:340.94:040.46:264:27New Moon7Mon
8Tue10:307.911:027.24:080.94:400.26:274:26New Moon8Tue
9Wed11:048.111:407.24:430.95:160.16:284:25New Moon9Wed
10Thu11:398.15:180.95:530.06:294:24New Moon10Thu
11Fri12:187.212:158.25:550.96:320.06:314:23Waxing Crescent11Fri
12Sat12:567.112:558.26:350.97:140.06:324:22Waxing Crescent12Sat
13Sun1:387.01:388.27:181.08:000.16:334:21Waxing Crescent13Sun
14Mon2:246.92:278.18:061.18:500.26:344:20Waxing Crescent14Mon
15Tue3:176.93:237.99:001.19:460.26:364:19First Quarter15Tue
16Wed4:156.94:257.810:011.110:440.26:374:18First Quarter16Wed
17Thu5:167.15:307.711:061.011:440.26:384:17First Quarter17Thu
18Fri6:167.56:377.712:130.76:404:16Waxing Gibbous18Fri
19Sat7:167.97:427.812:440.21:190.36:414:15Waxing Gibbous19Sat
20Sun8:128.48:447.91:430.12:22-0.26:424:15Waxing Gibbous20Sun
21Mon9:058.89:408.02:380.03:18-0.76:434:14Waxing Gibbous21Mon
22Tue9:559.110:348.13:30-0.14:11-1.06:444:13Full Moon22Tue
23Wed10:439.211:268.04:20-0.15:01-1.16:464:13Full Moon23Wed
24Thu11:329.15:080.05:51-1.06:474:12Full Moon24Thu
25Fri12:167.912:208.95:570.26:39-0.86:484:11Waning Gibbous25Fri
26Sat1:047.61:088.66:450.57:28-0.56:494:11Waning Gibbous26Sat
27Sun1:537.41:568.37:330.88:16-0.16:504:10Waning Gibbous27Sun
28Mon2:427.12:467.98:231.09:070.36:514:10Waning Gibbous28Mon
29Tue3:346.93:397.59:161.39:580.66:534:10Third Quarter29Tue
30Wed4:276.84:357.110:131.510:490.96:544:09Third 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 11:39 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 14% 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 Crescent (14% 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