Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in Seavey Island, NH.
Next low tide : in 1h 48m at 7:41 pm (1.3 ft)
Next high tide (tomorrow) : 1:55 am (8.7 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:08 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

Seavey Island, NH Tides - Jan 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:469.39:337.72:250.73:19-0.47:144:19Waxing Gibbous1Sun
2Mon9:429.710:288.13:220.44:13-0.97:144:19Full Moon2Mon
3Tue10:3710.011:238.44:170.05:06-1.37:144:20Full Moon3Tue
4Wed11:3210.25:12-0.35:58-1.57:144:21Full Moon4Wed
5Thu12:168.712:2710.26:06-0.46:49-1.57:144:22Waning Gibbous5Thu
6Fri1:098.91:2110.07:02-0.57:41-1.37:144:23Waning Gibbous6Fri
7Sat2:029.02:179.67:58-0.48:33-1.07:134:24Waning Gibbous7Sat
8Sun2:569.03:159.18:57-0.29:27-0.67:134:25Third Quarter8Sun
9Mon3:518.94:158.59:590.010:22-0.17:134:26Third Quarter9Mon
10Tue4:478.85:168.011:010.211:190.47:134:28Third Quarter10Tue
11Wed5:448.66:207.612:050.37:124:29Third Quarter11Wed
12Thu6:438.57:237.312:170.81:080.47:124:30Waning Crescent12Thu
13Fri7:408.58:227.21:151.12:080.47:124:31Waning Crescent13Fri
14Sat8:348.59:157.22:111.23:020.37:114:32Waning Crescent14Sat
15Sun9:228.510:017.23:011.23:490.37:114:33Waning Crescent15Sun
16Mon10:058.610:437.33:471.14:310.27:104:35New Moon16Mon
17Tue10:448.611:217.44:281.15:090.17:094:36New Moon17Tue
18Wed11:218.611:567.55:061.05:440.17:094:37New Moon18Wed
19Thu11:568.65:420.96:160.17:084:38New Moon19Thu
20Fri12:307.612:328.56:180.96:490.27:084:40Waxing Crescent20Fri
21Sat1:047.71:088.46:550.87:210.27:074:41Waxing Crescent21Sat
22Sun1:377.81:468.27:330.87:560.47:064:42Waxing Crescent22Sun
23Mon2:137.92:267.98:140.88:330.57:054:43Waxing Crescent23Mon
24Tue2:517.93:117.68:590.89:140.77:044:45First Quarter24Tue
25Wed3:348.04:017.39:490.810:010.97:044:46First Quarter25Wed
26Thu4:228.14:577.110:450.810:541.17:034:47First Quarter26Thu
27Fri5:178.26:006.911:470.711:541.17:024:49First Quarter27Fri
28Sat6:188.47:087.012:540.57:014:50Waxing Gibbous28Sat
29Sun7:248.78:157.312:591.02:000.17:004:51Waxing Gibbous29Sun
30Mon8:289.29:167.72:040.73:01-0.46:594:53Waxing Gibbous30Mon
31Tue9:289.610:138.23:060.23:57-0.96:584:54Full Moon31Tue
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 10:48 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 spring phase. Tonight's moon is 94% 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 Waning Gibbous (94% 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