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 : 2:06 pm (1.1 ft)
Next high tide : in 1h 28m at 8:09 am (7.6 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 - Oct 2037

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:277.54:388.410:201.311:030.76:406:23Third Quarter1Thu
2Fri5:217.45:338.411:151.46:426:22Third Quarter2Fri
3Sat6:207.46:348.512:010.712:141.36:436:20Third Quarter3Sat
4Sun7:227.67:388.71:020.61:181.16:446:18Waning Crescent4Sun
5Mon8:248.08:429.02:050.32:230.76:456:16Waning Crescent5Mon
6Tue9:238.69:429.43:04-0.13:250.16:466:15Waning Crescent6Tue
7Wed10:179.210:399.83:59-0.64:22-0.56:476:13New Moon7Wed
8Thu11:099.711:3310.04:52-0.95:17-1.06:486:11New Moon8Thu
9Fri11:5910.15:42-1.16:10-1.46:506:09New Moon9Fri
10Sat12:2710.012:4910.36:32-1.17:02-1.56:516:08New Moon10Sat
11Sun1:219.81:4010.37:22-0.97:55-1.46:526:06Waxing Crescent11Sun
12Mon2:159.52:3110.18:13-0.68:49-1.16:536:04Waxing Crescent12Mon
13Tue3:109.13:259.79:06-0.19:46-0.76:546:03Waxing Crescent13Tue
14Wed4:078.64:229.310:020.410:46-0.26:556:01First Quarter14Wed
15Thu5:088.25:228.811:010.911:470.26:575:59First Quarter15Thu
16Fri6:097.96:238.512:031.26:585:58First Quarter16Fri
17Sat7:107.77:248.312:490.51:051.46:595:56First Quarter17Sat
18Sun8:097.78:238.21:480.72:061.37:005:55Waxing Gibbous18Sun
19Mon9:027.89:168.22:440.73:021.27:025:53Waxing Gibbous19Mon
20Tue9:488.010:038.33:320.73:501.07:035:51Waxing Gibbous20Tue
21Wed10:298.210:458.34:140.74:330.77:045:50Waxing Gibbous21Wed
22Thu11:058.411:248.34:520.65:120.57:055:48Full Moon22Thu
23Fri11:408.65:260.65:490.37:065:47Full Moon23Fri
24Sat12:018.312:138.76:000.76:240.27:085:45Full Moon24Sat
25Sun12:388.312:468.76:330.77:000.27:095:44Full Moon25Sun
26Mon1:148.11:208.87:070.87:370.27:105:42Waning Gibbous26Mon
27Tue1:528.01:568.77:430.98:150.27:115:41Waning Gibbous27Tue
28Wed2:327.82:368.78:221.08:580.37:135:40Waning Gibbous28Wed
29Thu3:167.73:218.69:061.19:460.37:145:38Waning Gibbous29Thu
30Fri4:057.64:128.69:561.210:390.47:155:37Third Quarter30Fri
31Sat5:007.65:108.510:531.311:370.47:165:35Third Quarter31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8419870)

Common Questions About Seavey Island, NH Tides

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

Slack tide in Seavey Island, NH is approximately 11:07 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 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