Nearby Harbors
43.0900’ N, 70.7633’ W

Atlantic Heights, NH

68°
H 68°
L 51°
ENE
8mph
High tide
8:41 pm

Tides Today & Tomorrow in Atlantic Heights, NH

TIDE TIMES for Monday, September 21, 2026
The tide is currently rising in Atlantic Heights, NH.
Next low tide (tomorrow) : 3:03 am (1.1 ft)
Next high tide : in 6h 08m at 8:41 pm (7.1 ft)
Sunset today : 6:42 pm
Sunrise tomorrow : 6:29 am
Moon phase : Waxing Gibbous (75% illuminated)
Tide Station Location : Station #8423635
Common Questions About Tides

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Atlantic Heights, NH Tides - May 1878

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:037.211:078.04:420.34:450.94:406:47New Moon1Wed
2Thu11:417.211:418.05:180.15:190.94:386:48New Moon2Thu
3Fri12:187.25:540.05:551.04:376:50New Moon3Fri
4Sat12:158.112:557.16:300.06:321.04:366:51Waxing Crescent4Sat
5Sun12:528.11:347.07:090.07:121.04:346:52Waxing Crescent5Sun
6Mon1:318.12:167.07:510.07:561.14:336:53Waxing Crescent6Mon
7Tue2:168.13:036.98:380.18:451.14:326:54Waxing Crescent7Tue
8Wed3:078.03:577.09:290.19:411.14:316:55First Quarter8Wed
9Thu4:047.94:547.110:240.210:421.04:296:56First Quarter9Thu
10Fri5:057.85:537.411:210.211:460.84:286:57First Quarter10Fri
11Sat6:097.86:527.812:200.14:276:59Waxing Gibbous11Sat
12Sun7:157.87:508.312:520.41:200.04:267:00Waxing Gibbous12Sun
13Mon8:197.98:458.71:570.02:17-0.14:257:01Waxing Gibbous13Mon
14Tue9:198.19:379.12:56-0.53:11-0.14:247:02Waxing Gibbous14Tue
15Wed10:148.110:279.33:51-0.94:02-0.24:237:03Full Moon15Wed
16Thu11:098.211:179.34:44-1.14:53-0.14:227:04Full Moon16Thu
17Fri12:018.15:36-1.25:430.14:217:05Full Moon17Fri
18Sat12:079.212:527.96:26-1.06:330.34:207:06Waning Gibbous18Sat
19Sun12:569.01:427.77:16-0.77:230.64:197:07Waning Gibbous19Sun
20Mon1:468.62:337.48:06-0.48:140.94:187:08Waning Gibbous20Mon
21Tue2:378.23:267.18:580.09:081.24:177:09Waning Gibbous21Tue
22Wed3:317.84:207.09:500.410:051.44:167:10Third Quarter22Wed
23Thu4:267.45:146.910:430.711:031.54:157:11Third Quarter23Thu
24Fri5:237.16:057.011:341.04:147:12Third Quarter24Fri
25Sat6:196.86:567.112:021.512:251.14:147:13Third Quarter25Sat
26Sun7:166.77:457.21:011.41:151.34:137:14Waning Crescent26Sun
27Mon8:116.78:307.41:561.22:021.34:127:15Waning Crescent27Mon
28Tue9:016.79:127.72:451.02:461.34:127:16Waning Crescent28Tue
29Wed9:476.89:527.83:280.73:271.34:117:16Waning Crescent29Wed
30Thu10:306.910:308.04:090.44:061.24:107:17New Moon30Thu
31Fri11:127.011:098.24:490.24:461.14:107:18New Moon31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8423635)

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The US Harbors tide chart design is protected by copyright. It may be printed for personal use only.
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Common Questions About Atlantic Heights, NH Tides

Collapse All
Is this week a spring tide or neap tide in Atlantic Heights, NH?

Atlantic Heights, NH is currently in a transitional phase. Tonight's moon is 75% 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 shifting between spring and neap.

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 Gibbous (75% illuminated). This places Atlantic Heights, NH in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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

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