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 3h 57m 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 - Apr 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:258.29:488.23:110.83:340.55:236:09Waxing Gibbous1Mon
2Tue10:088.410:268.53:530.44:120.35:226:10Full Moon2Tue
3Wed10:488.611:038.84:330.04:490.25:206:11Full Moon3Wed
4Thu11:298.611:419.15:13-0.35:270.05:186:12Full Moon4Thu
5Fri12:108.65:54-0.56:070.05:166:14Full Moon5Fri
6Sat12:219.212:538.66:37-0.66:490.05:156:15Waning Gibbous6Sat
7Sun1:049.32:398.58:22-0.68:360.16:137:16Waning Gibbous7Sun
8Mon2:519.33:308.39:12-0.59:270.36:117:17Waning Gibbous8Mon
9Tue3:439.24:278.210:07-0.410:240.56:097:18Third Quarter9Tue
10Wed4:429.05:298.111:07-0.211:270.66:087:19Third Quarter10Wed
11Thu5:468.86:348.112:10-0.16:067:21Third Quarter11Thu
12Fri6:548.87:428.312:340.61:16-0.16:047:22Third Quarter12Fri
13Sat8:048.88:468.71:430.42:21-0.26:037:23Waning Crescent13Sat
14Sun9:099.09:449.12:490.13:21-0.46:017:24Waning Crescent14Sun
15Mon10:099.210:379.43:50-0.44:16-0.55:597:25Waning Crescent15Mon
16Tue11:029.311:259.74:44-0.75:06-0.65:587:26New Moon16Tue
17Wed11:529.35:35-1.05:52-0.55:567:28New Moon17Wed
18Thu12:109.712:409.26:22-1.06:37-0.45:557:29New Moon18Thu
19Fri12:539.71:249.07:07-0.97:19-0.15:537:30New Moon19Fri
20Sat1:359.52:078.67:51-0.78:010.35:517:31Waxing Crescent20Sat
21Sun2:159.22:508.38:34-0.38:430.75:507:32Waxing Crescent21Sun
22Mon2:578.83:348.09:170.09:261.05:487:33Waxing Crescent22Mon
23Tue3:408.54:207.710:020.410:131.35:477:35Waxing Crescent23Tue
24Wed4:268.25:087.510:500.711:021.65:457:36First Quarter24Wed
25Thu5:157.95:587.411:391.011:551.75:447:37First Quarter25Thu
26Fri6:087.76:507.412:301.15:427:38First Quarter26Fri
27Sat7:047.67:437.512:511.71:231.25:417:39First Quarter27Sat
28Sun8:017.78:347.81:471.52:141.15:397:40Waxing Gibbous28Sun
29Mon8:557.89:218.12:411.23:031.05:387:41Waxing Gibbous29Mon
30Tue9:458.010:058.53:320.83:480.85:367:43Waxing Gibbous30Tue
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 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