Tides Today & Tomorrow in Atlantic Heights, NH

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently rising in Atlantic Heights, NH.
Next low tide : 11:51 pm (0.9 ft)
Next high tide : in 3h 25m at 5:34 pm (7.6 ft)
Sunset today : 7:39 pm
Sunrise tomorrow : 5:53 am
Moon phase : First Quarter (46% illuminated)
Tide Station Location : Station #8423635
Common Questions About Tides

Atlantic Heights, NH Tides - Jun 1942

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:299.82:128.67:45-1.67:59-0.55:068:15Waning Gibbous1Mon
2Tue2:239.63:088.58:39-1.48:55-0.25:058:15Waning Gibbous2Tue
3Wed3:199.34:068.39:35-1.19:540.05:058:16Waning Gibbous3Wed
4Thu4:198.95:078.110:34-0.710:570.35:048:17Third Quarter4Thu
5Fri5:228.46:088.011:34-0.45:048:18Third Quarter5Fri
6Sat6:258.07:087.912:020.512:340.05:048:18Third Quarter6Sat
7Sun7:297.78:067.91:080.61:340.35:038:19Third Quarter7Sun
8Mon8:317.49:028.02:130.62:330.55:038:20Waning Crescent8Mon
9Tue9:307.39:538.03:130.53:260.75:038:20Waning Crescent9Tue
10Wed10:237.310:388.14:060.44:140.85:038:21Waning Crescent10Wed
11Thu11:107.311:218.14:530.24:580.85:028:21Waning Crescent11Thu
12Fri11:557.35:360.15:380.95:028:22New Moon12Fri
13Sat12:008.212:367.36:160.16:160.95:028:22New Moon13Sat
14Sun12:388.21:157.26:530.16:531.05:028:23New Moon14Sun
15Mon1:158.11:537.27:290.17:291.05:028:23New Moon15Mon
16Tue1:518.02:307.28:040.18:061.15:028:24Waxing Crescent16Tue
17Wed2:278.03:077.18:400.28:451.15:028:24Waxing Crescent17Wed
18Thu3:047.93:467.29:180.29:271.25:028:25Waxing Crescent18Thu
19Fri3:457.74:277.29:580.310:121.25:028:25Waxing Crescent19Fri
20Sat4:307.65:117.310:420.311:021.15:038:25First Quarter20Sat
21Sun5:197.55:587.511:280.311:540.95:038:25First Quarter21Sun
22Mon6:127.56:487.812:170.35:038:26First Quarter22Mon
23Tue7:097.57:418.112:500.71:100.35:038:26Waxing Gibbous23Tue
24Wed8:097.58:378.51:500.42:070.25:048:26Waxing Gibbous24Wed
25Thu9:117.79:338.92:51-0.13:050.05:048:26Waxing Gibbous25Thu
26Fri10:117.910:289.33:49-0.54:01-0.25:048:26Waxing Gibbous26Fri
27Sat11:098.211:239.64:46-1.04:57-0.45:058:26Full Moon27Sat
28Sun12:058.45:41-1.35:52-0.55:058:26Full Moon28Sun
29Mon12:189.81:018.56:36-1.56:47-0.65:058:26Full Moon29Mon
30Tue1:139.81:568.67:30-1.57:43-0.55:068:26Waning Gibbous30Tue
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 8:42 pm — 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 46% 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 (46% 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