Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Seavey Island, NH.
Next low tide : in 17m at 11:00 am (0.6 ft)
Next high tide : 5:22 pm (8.5 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:11 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

Seavey Island, NH Tides - Dec 1995

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:428.87:108.312:150.112:520.36:544:09Waxing Gibbous1Fri
2Sat7:408.98:108.31:140.31:540.16:554:09Waxing Gibbous2Sat
3Sun8:339.09:038.22:090.42:49-0.16:564:08Waxing Gibbous3Sun
4Mon9:209.19:528.22:590.43:38-0.26:574:08Waxing Gibbous4Mon
5Tue10:039.110:358.13:440.54:22-0.36:584:08Full Moon5Tue
6Wed10:429.111:158.14:260.65:02-0.36:594:08Full Moon6Wed
7Thu11:199.011:538.05:040.75:39-0.27:004:08Full Moon7Thu
8Fri11:548.95:410.86:15-0.17:014:08Full Moon8Fri
9Sat12:297.912:308.86:170.96:510.07:024:07Waning Gibbous9Sat
10Sun1:067.81:068.76:541.07:270.27:034:07Waning Gibbous10Sun
11Mon1:437.81:458.57:321.18:040.37:044:08Waning Gibbous11Mon
12Tue2:237.72:278.38:141.28:440.47:044:08Waning Gibbous12Tue
13Wed3:047.73:128.18:591.29:270.67:054:08Third Quarter13Wed
14Thu3:497.84:017.99:481.210:130.77:064:08Third Quarter14Thu
15Fri4:367.94:537.710:421.111:030.77:074:08Third Quarter15Fri
16Sat5:268.15:507.611:380.911:560.77:074:08Third Quarter16Sat
17Sun6:198.46:507.712:380.67:084:09Waning Crescent17Sun
18Mon7:148.87:507.912:520.61:370.27:094:09Waning Crescent18Mon
19Tue8:109.28:488.11:490.42:35-0.37:094:09Waning Crescent19Tue
20Wed9:049.79:448.52:440.03:30-0.97:104:10New Moon20Wed
21Thu9:5710.110:388.83:39-0.34:23-1.37:114:10New Moon21Thu
22Fri10:5110.411:339.04:33-0.55:16-1.67:114:11New Moon22Fri
23Sat11:4510.45:27-0.76:08-1.77:114:11Waxing Crescent23Sat
24Sun12:279.112:4010.36:21-0.77:01-1.67:124:12Waxing Crescent24Sun
25Mon1:229.21:3610.07:17-0.67:55-1.37:124:12Waxing Crescent25Mon
26Tue2:189.12:349.68:15-0.48:50-1.07:134:13Waxing Crescent26Tue
27Wed3:159.03:349.19:16-0.29:47-0.57:134:14First Quarter27Wed
28Thu4:148.94:368.610:190.110:46-0.17:134:15First Quarter28Thu
29Fri5:138.85:398.211:230.311:450.37:134:15First Quarter29Fri
30Sat6:128.76:437.812:270.37:144:16First Quarter30Sat
31Sun7:108.67:437.812:430.61:290.37:144:17Waxing Gibbous31Sun
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 2:11 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 neap phase. Tonight's moon is 52% 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 minimum.

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 Third Quarter (52% illuminated). This places Seavey Island, NH in a neap tide cycle, so tidal ranges are near their weekly minimum 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