Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Seavey Island, NH.
Next low tide : 1:13 pm (0.8 ft)
Next high tide : in 19m at 7:10 am (7.9 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:04 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

Seavey Island, NH Tides - Jun 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:228.68:529.52:090.12:29-0.15:058:15Waning Crescent1Wed
2Thu9:248.89:489.93:11-0.43:27-0.35:058:16Waning Crescent2Thu
3Fri10:249.010:4310.34:09-0.94:23-0.45:048:17New Moon3Fri
4Sat11:219.211:3610.55:05-1.35:17-0.55:048:18New Moon4Sat
5Sun12:179.35:59-1.56:11-0.55:048:18New Moon5Sun
6Mon12:3010.51:129.26:52-1.57:04-0.35:038:19New Moon6Mon
7Tue1:2310.32:069.17:44-1.47:56-0.15:038:20Waxing Crescent7Tue
8Wed2:1510.02:598.98:37-1.08:500.25:038:20Waxing Crescent8Wed
9Thu3:089.63:528.79:29-0.69:450.65:038:21Waxing Crescent9Thu
10Fri4:029.14:468.510:22-0.210:420.95:038:21First Quarter10Fri
11Sat4:578.65:388.311:150.211:401.15:028:22First Quarter11Sat
12Sun5:528.26:308.212:070.65:028:22First Quarter12Sun
13Mon6:477.97:218.212:371.212:590.95:028:23First Quarter13Mon
14Tue7:437.68:118.21:341.21:491.15:028:23Waxing Gibbous14Tue
15Wed8:377.58:598.32:281.12:381.25:028:24Waxing Gibbous15Wed
16Thu9:287.59:438.53:191.03:251.35:028:24Waxing Gibbous16Thu
17Fri10:157.610:248.74:050.74:071.25:028:24Waxing Gibbous17Fri
18Sat10:587.711:038.84:470.54:481.25:038:25Full Moon18Sat
19Sun11:407.811:428.95:270.35:271.15:038:25Full Moon19Sun
20Mon12:217.96:050.16:051.05:038:25Full Moon20Mon
21Tue12:219.01:007.96:430.06:450.95:038:26Full Moon21Tue
22Wed1:009.11:408.07:21-0.17:260.95:038:26Waning Gibbous22Wed
23Thu1:419.12:218.18:01-0.28:100.85:048:26Waning Gibbous23Thu
24Fri2:249.13:058.38:44-0.28:570.75:048:26Waning Gibbous24Fri
25Sat3:119.03:518.49:29-0.29:490.75:048:26Waning Gibbous25Sat
26Sun4:018.94:428.610:18-0.210:450.65:058:26Third Quarter26Sun
27Mon4:578.75:358.811:11-0.111:440.55:058:26Third Quarter27Mon
28Tue5:568.56:329.012:070.05:068:26Third Quarter28Tue
29Wed6:598.47:319.312:470.31:060.15:068:26Waning Crescent29Wed
30Thu8:048.48:329.61:510.02:070.15:078:26Waning Crescent30Thu
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 10:11 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 67% 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 First Quarter (67% 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