Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Sunday, June 14, 2026
The tide is currently falling in Seavey Island, NH.
Next low tide : in 3h 11m at 4:58 am (-0.8 ft)
Next high tide : 11:13 am (8.3 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:02 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

Seavey Island, NH Tides - Sep 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:249.66:06-1.16:26-0.96:077:18New Moon1Wed
2Thu12:4510.01:139.86:55-1.17:19-1.06:087:16Waxing Crescent2Thu
3Fri1:379.82:019.87:43-0.98:11-0.96:097:15Waxing Crescent3Fri
4Sat2:299.42:509.78:31-0.49:04-0.66:107:13Waxing Crescent4Sat
5Sun3:228.93:409.49:200.19:59-0.26:117:11Waxing Crescent5Sun
6Mon4:168.34:339.010:120.610:570.26:127:09First Quarter6Mon
7Tue5:137.85:288.611:061.111:560.76:137:08First Quarter7Tue
8Wed6:117.46:268.312:031.56:147:06First Quarter8Wed
9Thu7:127.17:258.112:570.91:021.76:157:04First Quarter9Thu
10Fri8:117.08:238.11:571.12:021.76:177:02Waxing Gibbous10Fri
11Sat9:067.29:168.22:531.12:571.66:187:00Waxing Gibbous11Sat
12Sun9:537.410:028.33:410.93:471.46:196:59Waxing Gibbous12Sun
13Mon10:347.610:448.44:230.84:301.16:206:57Waxing Gibbous13Mon
14Tue11:127.911:238.55:000.75:100.96:216:55Full Moon14Tue
15Wed11:468.25:340.65:470.76:226:53Full Moon15Wed
16Thu12:008.512:198.46:060.56:230.56:236:51Full Moon16Thu
17Fri12:378.412:528.56:380.67:000.36:246:50Full Moon17Fri
18Sat1:148.31:268.77:120.67:380.36:256:48Waning Gibbous18Sat
19Sun1:528.12:028.77:470.78:190.36:266:46Waning Gibbous19Sun
20Mon2:337.92:428.88:270.89:040.36:276:44Waning Gibbous20Mon
21Tue3:187.73:288.79:111.09:540.46:296:42Third Quarter21Tue
22Wed4:097.54:218.710:021.110:510.66:306:41Third Quarter22Wed
23Thu5:087.35:228.611:001.311:540.66:316:39Third Quarter23Thu
24Fri6:127.36:288.612:051.36:326:37Third Quarter24Fri
25Sat7:207.57:388.81:010.51:151.16:336:35Waning Crescent25Sat
26Sun8:277.98:469.12:070.32:240.76:346:33Waning Crescent26Sun
27Mon9:288.59:479.43:08-0.13:280.26:356:32Waning Crescent27Mon
28Tue10:229.110:449.64:04-0.54:26-0.46:366:30New Moon28Tue
29Wed11:129.611:379.74:55-0.75:20-0.96:376:28New Moon29Wed
30Thu12:009.95:43-0.86:11-1.16:396:26New Moon30Thu
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 8:05 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 spring phase. Tonight's moon is 0% 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 maximum.

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 New Moon (0% illuminated). This places Seavey Island, NH in a spring tide cycle, so tidal ranges are near their weekly maximum 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