Tides Today & Tomorrow in Atlantic Heights, NH

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Atlantic Heights, NH.
Next low tide : in 4h 32m at 11:51 pm (0.9 ft)
Next high tide (tomorrow) : 6:13 am (6.6 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 - Jan 1942

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:478.011:227.14:240.85:010.07:144:18Full Moon1Thu
2Fri11:258.15:010.75:37-0.17:144:19Full Moon2Fri
3Sat12:007.212:018.15:370.76:12-0.27:144:20Full Moon3Sat
4Sun12:367.212:368.16:140.66:47-0.27:144:21Waning Gibbous4Sun
5Mon1:117.31:128.16:510.67:23-0.27:144:22Waning Gibbous5Mon
6Tue1:477.31:518.07:310.58:01-0.27:144:23Waning Gibbous6Tue
7Wed2:267.42:337.98:150.58:44-0.27:144:24Waning Gibbous7Wed
8Thu3:097.53:217.89:030.59:30-0.17:144:25Third Quarter8Thu
9Fri3:577.64:147.69:560.410:210.07:144:26Third Quarter9Fri
10Sat4:497.85:137.410:530.311:160.17:134:27Third Quarter10Sat
11Sun5:458.06:177.311:550.27:134:28Third Quarter11Sun
12Mon6:468.27:247.412:150.11:00-0.17:134:29Waning Crescent12Mon
13Tue7:488.58:307.61:170.12:06-0.47:124:30Waning Crescent13Tue
14Wed8:498.89:317.82:20-0.13:07-0.87:124:31Waning Crescent14Wed
15Thu9:469.110:288.13:19-0.34:03-1.27:124:33New Moon15Thu
16Fri10:419.311:228.34:15-0.54:57-1.47:114:34New Moon16Fri
17Sat11:359.45:09-0.75:49-1.57:114:35New Moon17Sat
18Sun12:148.412:279.36:01-0.76:39-1.47:104:36Waxing Crescent18Sun
19Mon1:048.31:179.06:53-0.67:27-1.17:094:37Waxing Crescent19Mon
20Tue1:538.22:078.67:44-0.38:15-0.77:094:39Waxing Crescent20Tue
21Wed2:428.02:588.18:350.09:04-0.37:084:40Waxing Crescent21Wed
22Thu3:327.83:517.69:300.39:540.27:074:41First Quarter22Thu
23Fri4:247.54:477.110:260.610:460.67:074:42First Quarter23Fri
24Sat5:177.35:446.711:240.811:391.07:064:44First Quarter24Sat
25Sun6:117.26:446.512:240.97:054:45First Quarter25Sun
26Mon7:077.27:446.412:351.21:250.97:044:46Waxing Gibbous26Mon
27Tue8:017.28:396.51:331.32:210.87:034:48Waxing Gibbous27Tue
28Wed8:527.49:286.72:261.23:100.57:024:49Waxing Gibbous28Wed
29Thu9:377.610:126.93:131.03:530.37:014:50Waxing Gibbous29Thu
30Fri10:197.810:537.13:550.84:320.07:004:52Full Moon30Fri
31Sat10:588.011:327.34:340.65:09-0.26:594:53Full Moon31Sat
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 3:02 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 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