Tides Today & Tomorrow in Atlantic Heights, NH

TIDE TIMES for Monday, July 20, 2026
The tide is currently rising in Atlantic Heights, NH.
Next low tide : 10:57 am (0.2 ft)
Next high tide : in 50m at 4:55 am (7.8 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 5:22 am
Moon phase : First Quarter (42% illuminated)
Tide Station Location : Station #8423635
Common Questions About Tides

Atlantic Heights, NH Tides - Jul 2066

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:087.26:368.012:070.65:078:26First Quarter1Thu
2Fri7:057.17:308.212:480.61:000.65:088:26Waxing Gibbous2Fri
3Sat8:077.18:288.51:480.31:580.65:098:26Waxing Gibbous3Sat
4Sun9:117.29:288.92:510.02:580.45:098:25Waxing Gibbous4Sun
5Mon10:137.510:269.23:52-0.43:580.25:108:25Waxing Gibbous5Mon
6Tue11:127.711:249.44:49-0.84:560.05:108:25Full Moon6Tue
7Wed12:108.05:46-1.15:53-0.25:118:24Full Moon7Wed
8Thu12:219.61:058.26:40-1.36:50-0.45:128:24Full Moon8Thu
9Fri1:179.61:598.47:33-1.37:46-0.45:138:23Waning Gibbous9Fri
10Sat2:129.42:528.58:25-1.28:42-0.35:138:23Waning Gibbous10Sat
11Sun3:069.03:448.49:16-0.99:39-0.15:148:22Waning Gibbous11Sun
12Mon4:018.54:388.310:08-0.510:370.15:158:22Third Quarter12Mon
13Tue4:598.05:328.211:010.011:370.45:168:21Third Quarter13Tue
14Wed5:577.56:268.011:540.55:178:21Third Quarter14Wed
15Thu6:577.17:217.812:380.612:490.95:178:20Third Quarter15Thu
16Fri7:586.78:177.71:390.71:461.25:188:19Waning Crescent16Fri
17Sat8:586.69:127.72:410.82:431.45:198:19Waning Crescent17Sat
18Sun9:536.610:037.73:370.73:371.45:208:18Waning Crescent18Sun
19Mon10:436.710:497.84:270.64:251.35:218:17Waning Crescent19Mon
20Tue11:286.811:327.95:110.55:081.25:228:16New Moon20Tue
21Wed12:106.95:510.45:481.15:238:15New Moon21Wed
22Thu12:128.012:497.16:280.26:261.05:248:14New Moon22Thu
23Fri12:508.11:257.27:030.27:030.95:258:14New Moon23Fri
24Sat1:268.11:597.37:350.17:400.85:268:13Waxing Crescent24Sat
25Sun2:018.02:327.58:080.18:180.75:278:12Waxing Crescent25Sun
26Mon2:387.93:067.68:420.18:580.65:288:11Waxing Crescent26Mon
27Tue3:167.83:447.89:200.29:420.55:298:10Waxing Crescent27Tue
28Wed3:597.64:257.910:010.310:310.55:308:09First Quarter28Wed
29Thu4:477.45:128.110:460.411:240.45:318:07First Quarter29Thu
30Fri5:417.26:058.211:370.55:328:06First Quarter30Fri
31Sat6:407.07:038.312:210.412:330.65:338:05First Quarter31Sat
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 7:56 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 42% 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 (42% 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