Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in Seavey Island, NH.
Next low tide (tomorrow) : 2:54 am (0.7 ft)
Next high tide : in 3h 54m at 8:29 pm (8.6 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:04 am
Moon phase : Waxing Gibbous (76% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

Seavey Island, NH Tides - Apr 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:228.510:528.14:040.74:360.36:247:09Waning Crescent1Thu
2Fri11:068.511:318.34:510.55:170.26:227:10New Moon2Fri
3Sat11:468.55:320.35:530.36:207:11New Moon3Sat
4Sun12:068.412:238.56:100.26:260.46:187:12New Moon4Sun
5Mon12:398.512:588.46:450.26:580.56:177:13New Moon5Mon
6Tue1:108.51:338.27:190.17:300.66:157:15New Moon6Tue
7Wed1:418.52:088.17:540.28:020.86:137:16Waxing Crescent7Wed
8Thu2:158.52:467.98:300.38:371.06:117:17Waxing Crescent8Thu
9Fri2:508.43:267.69:090.49:161.26:107:18Waxing Crescent9Fri
10Sat3:308.34:117.49:520.510:001.46:087:19Waxing Crescent10Sat
11Sun4:168.25:007.210:410.610:511.56:067:20First Quarter11Sun
12Mon5:078.15:557.211:350.711:471.56:057:22First Quarter12Mon
13Tue6:058.16:547.312:330.76:037:23First Quarter13Tue
14Wed7:088.37:557.612:491.31:340.56:017:24Waxing Gibbous14Wed
15Thu8:128.58:548.21:541.02:340.26:007:25Waxing Gibbous15Thu
16Fri9:148.99:498.82:570.43:31-0.25:587:26Waxing Gibbous16Fri
17Sat10:119.310:409.43:55-0.24:23-0.65:567:27Waxing Gibbous17Sat
18Sun11:069.611:309.94:50-0.85:14-0.95:557:29Full Moon18Sun
19Mon12:009.75:43-1.36:03-1.05:537:30Full Moon19Mon
20Tue12:2010.312:539.76:35-1.66:53-1.05:527:31Full Moon20Tue
21Wed1:1010.41:479.57:28-1.77:44-0.75:507:32Waning Gibbous21Wed
22Thu2:0110.32:419.28:21-1.58:36-0.35:497:33Waning Gibbous22Thu
23Fri2:5410.03:388.89:16-1.19:310.25:477:34Waning Gibbous23Fri
24Sat3:509.54:388.310:15-0.610:300.75:467:35Third Quarter24Sat
25Sun4:509.05:418.011:17-0.111:341.05:447:37Third Quarter25Sun
26Mon5:538.66:447.812:200.35:437:38Third Quarter26Mon
27Tue6:588.37:467.812:391.21:220.55:417:39Third Quarter27Tue
28Wed8:018.18:437.91:431.32:210.75:407:40Waning Crescent28Wed
29Thu9:008.19:338.02:441.23:140.75:387:41Waning Crescent29Thu
30Fri9:518.110:178.23:370.94:000.75:377:42Waning Crescent30Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8419870)

Common Questions About Seavey Island, NH Tides

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What time does the tide turn (slack tide) in Seavey Island, NH today?

Slack tide in Seavey Island, NH is approximately 11:41 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 Seavey Island, NH?

Seavey Island, NH is currently in a transitional phase. Tonight's moon is 76% 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 Seavey Island, 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 Seavey Island, NH?

Tide predictions for Seavey Island, 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 Seavey Island, NH?

Tide data for Seavey Island, NH is sourced from NOAA Station #8419870. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8419870.

What is the moon phase in Seavey Island, NH tonight?

Tonight the moon over Seavey Island, NH is Waxing Gibbous (76% illuminated). This places Seavey Island, 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