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 : 11:06 am (1.1 ft)
Next high tide : in 2h 22m at 5:17 am (7.0 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 1943

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:367.711:488.65:16-0.35:240.45:068:14New Moon1Tue
2Wed12:237.76:02-0.46:070.55:058:15New Moon2Wed
3Thu12:308.51:077.66:45-0.36:490.75:058:16New Moon3Thu
4Fri1:108.41:497.57:25-0.27:280.85:058:17New Moon4Fri
5Sat1:498.32:297.38:05-0.18:081.05:048:17Waxing Crescent5Sat
6Sun2:288.13:097.28:430.18:481.25:048:18Waxing Crescent6Sun
7Mon3:087.93:517.19:230.39:301.35:038:19Waxing Crescent7Mon
8Tue3:507.64:367.010:050.510:161.45:038:20Waxing Crescent8Tue
9Wed4:357.45:217.010:490.611:051.55:038:20First Quarter9Wed
10Thu5:247.26:087.011:340.711:551.55:038:21First Quarter10Thu
11Fri6:157.16:557.112:200.85:038:21First Quarter11Fri
12Sat7:077.07:437.412:481.41:090.85:028:22First Quarter12Sat
13Sun8:037.08:327.71:431.12:000.85:028:22Waxing Gibbous13Sun
14Mon8:587.29:218.12:390.82:510.65:028:23Waxing Gibbous14Mon
15Tue9:527.410:088.53:320.33:410.45:028:23Waxing Gibbous15Tue
16Wed10:437.610:568.94:22-0.24:310.25:028:24Full Moon16Wed
17Thu11:357.911:459.35:12-0.75:200.05:028:24Full Moon17Thu
18Fri12:268.16:02-1.06:11-0.25:028:24Full Moon18Fri
19Sat12:369.51:198.36:53-1.37:04-0.35:028:25Full Moon19Sat
20Sun1:289.62:128.47:45-1.47:57-0.35:038:25Waning Gibbous20Sun
21Mon2:219.53:068.48:38-1.38:53-0.25:038:25Waning Gibbous21Mon
22Tue3:179.34:048.39:33-1.19:520.05:038:26Waning Gibbous22Tue
23Wed4:178.95:038.310:30-0.810:550.15:038:26Third Quarter23Wed
24Thu5:198.56:038.211:29-0.55:048:26Third Quarter24Thu
25Fri6:228.17:038.212:000.312:28-0.25:048:26Third Quarter25Fri
26Sat7:277.88:028.21:050.31:280.25:048:26Waning Crescent26Sat
27Sun8:317.58:598.22:110.32:280.45:058:26Waning Crescent27Sun
28Mon9:327.49:528.33:130.23:250.65:058:26Waning Crescent28Mon
29Tue10:277.310:418.34:090.14:160.75:058:26Waning Crescent29Tue
30Wed11:177.311:268.34:580.05:030.85:068:26New Moon30Wed
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 8:11 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 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